Answer:
110
Step-by-step explanation:
150*5=750
750+2000=2750
2750/25=110
Answer:
The number is 110
Explanation:
To find the number you have to reverse everything so we will start by the number 150, it says that after dividing by 5 we get 150 so we will multiply 150 with 5 because the opposite of decision is multiplication the answer we get is 750. Then you go a step back again and it says to subtract 2000 and the opposite of subtraction is addition so we add 2000 to 750 and we get 2750. Now we go a step back again and it says to multiply by 25 and the opposite of multiplication is division so we will divide 2750 with 25 and we get 110
Step by step:
150×5= 750
=> 750+2000= 2750
2750÷25= 110
Write the slope-intercept inequality for the graph below.
(-2,3) (1,-6)
Answer:
y<=-3x-3
Step-by-step explanation:
m=y2-y1/x2-x1
m=-6-3/1-2
m=-3
y-y1=m(x-x1)
y-3=-3(x-(-2))
y-3=-3x-6
y=-3x-6+3
y=-3x-3
we change the equal sign to a "less than or equal to" sign to get the final answer of y <= -3x-3
sample size and the confidence level width have a (n) __________ relationship.
Sample size and the confidence level width have an inverse relationship. As the sample size increases, the confidence level width decreases.
When determining a confidence interval for a population parameter, such as the mean or proportion, a larger sample size provides more information about the population. This increased information leads to a narrower confidence interval.
The confidence level width is influenced by two factors: the sample standard deviation (or the variability of the data) and the critical value associated with the desired confidence level. As the sample size increases, the sample standard deviation becomes a more accurate estimate of the population standard deviation. This reduces the variability and leads to a narrower confidence interval.
A larger sample size leads to a decrease in the confidence level width, providing a more precise estimate of the population parameter with a higher level of confidence.
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Can someone help meee!!!
Answer:
Using the given information from the graph, the x-intercept of the line is -1 and the y-intercept of the line is -4.
Step-by-step explanation:
For this problem, we are asked to find the x-intercept and the y-intercept of the line. The x-intercept represents the point where the line hits the x-axis. The y-intercept represents the point where the line hits the y-axis.
So, knowing this, we have the find the points where the line hits the x-axis and the point where the line hits the y-axis.
The line hits the x-axis at (-1,0). The line hits the y-axis at (0,-4)
So, the x-intercept of the line is -1 and the y-intercept of the line is -4.
i need help on number 6 and 7 !!! please help!!!! it would be much appreciated
Answer:
6.) No, you do not agree with Ted.
7.) x = 34 degrees
Step-by-step explanation:
6.) For a triangle to be valid, it must meet these requirements:
a+b>c
a+c>b
b+c>a
If it fails a single one, then it is invalid.
For example: 6+11 is not greater than 4. Therefor, Ted is incorrect
7.) Though you see a square, or rectangle (whatever you want to call it), you can break it up into 2 triangle, only 1 of which you need to solve for.
We have these clues:
angle 1 = x
angle 2 = 56 degrees
angle 3 is a right angle
Any triangle must have its angles sum to 180 degrees
We also know that right angles are equal to 90 degrees.
Our updated clues:
angle 1 = x
angle 2 = 56 degrees
angle 3 = 90 degrees
angles 1+2+3 must equal 180
So we can make this equation:
x+56+90=180
Add like terms and solve for x:
x = 34
You invested 17,000 into accounts paying 2%and 8% annual interest respectfully if the total interest earned for the year was 1,060 how much was was invested at each rate2%8%
Let's define the following variables.
x = the amount invested at 2%
y = the amount invested at 8%
0.02x = interest at 2% account
0.08y = interest at 8% account
If the total investment in both accounts is 17, 000 then, we can say that:
\(x+y=17,000\)If the total interest earning in both accounts is 1,060 then, we can say that:
\(0.02x+0.08y=1,060\)Now that we were able to form a system of equation, we can solve for the values of x and y using substitution method. Here are the steps.
1. Equation Equation 1 into y = .
\(\begin{gathered} x+y=17,000 \\ y=17,000-x \end{gathered}\)2. Replace the value of y in equation 2 using equation 1.
\(\begin{gathered} 0.02x+0.08y=1,060 \\ 0.02x+0.08(17,000-x)=1,060 \end{gathered}\)3. Solve for x.
\(\begin{gathered} \text{Distribute 0.08.} \\ 0.02x+1,360-0.08x=1,060 \\ Subtract\text{ 0.02x and 0.08x.} \\ -0.06x+1,360=1,060 \\ \text{Subtract 1,360 on both sides of the equation.} \\ -0.06x=-300 \\ \text{Divide both sides by -0.06.} \\ x=5,000 \end{gathered}\)The value of x is 5,000. Hence, the amount invested at 2% is 5,000.
4. Solve for y using equation 1 and the calculated value of x.
\(\begin{gathered} y=17,000-x \\ y=17,000-5,000 \\ y=12,000 \end{gathered}\)The value of y is 12,000. Hence, the amount invested at 8% is 12, 000.
what is the probability that more than one woman will wear sunscreen when outside for more than one hour?
The probability that more than one woman will wear sunscreen when outside for more than one hour can be calculated using the binomial distribution.
The binomial distribution is a probability distribution that calculates the probability of a certain number of successes in a fixed number of independent trials. The binomial distribution is a discrete probability distribution that is characterized by two parameters: the probability of success in a single trial (p) and the number of trials (n).In this question, we need to find the probability that more than one woman will wear sunscreen when outside for more than one hour. Since we are dealing with more than one woman, we need to use the binomial distribution with the following parameters:p = probability that a woman wears sunscreen when outside for more than one hourn = number of womenLet's assume that p = 0.6 (60% chance that a woman will wear sunscreen when outside for more than one hour) and n = 3 (three women are outside for more than one hour).The probability that no woman will wear sunscreen is (1 - 0.6)^3 = 0.064.The probability that one woman will wear sunscreen is 3 × 0.6 × (1 - 0.6)^2 = 0.288.The probability that two women will wear sunscreen is 3 × 0.6^2 × (1 - 0.6) = 0.432.The probability that three women will wear sunscreen is 0.6^3 = 0.216.The probability that more than one woman will wear sunscreen is the sum of the probabilities that two or three women will wear sunscreen:P(X > 1) = P(X = 2) + P(X = 3) = 0.432 + 0.216 = 0.648Therefore, the probability that more than one woman will wear sunscreen when outside for more than one hour is 0.648 or 64.8%.
To accurately calculate the probability of more than one woman wearing sunscreen when outside for more than one hour, we would need more information, such as the total number of women and the individual probabilities of them wearing sunscreen.
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If a bike normally costs $150 but it is marked up
100% due to an increase in demand. How much
would it cost? *
Answer:
300
Step-by-step explanation:
100% of 150 is literally 150, add those together and you get 300.
Answer:
the answer is $300
Step-by-step explanation: when increasing by 100% it is the same as multiplying by 2
A set of data has a normal distribution with a mean of 46 and a standard deviation of 7. Find the percent of data within the following interval.
less than 46
The percent of data within the given interval is what percent?
Answer:
50%
the mean (46) marks the halfway point, so over the mean is 50% and under the mean is 50%
Mrs. Katz is planning a family vacation. She bought 8 rolls of film and 2 camera batteries for $23.00. The next day, her daughter went back and bought 6 more rolls of film and 2 batteries for her camera. This bill was $18.00. What was the price of a roll of film and a camera battery?
The price of rolls of film is $2.50 and the price camera batteries is $1.50.
of Two equations can be derived from the question:
8f + 2b = 23 equation 1
6f + 2b = 18 equation 2
Where:
f = rolls of film
b = camera batteries
In order to determine the value of f, subtract equation 2 from 1
2f = 5
Divide both sides of the equation by 2
f = 2.50
In order to determine the value of b, substitute for f in equation 1:
8(2.50) + 2b = 23
20 + 2b = 23
2b = 23 - 20
2b = 3
b = 1.50
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please helpp meeeeeeeeeeeeeeeeer
Answer:
sinA = 12/13, cosA = 5/13, tanA = 12/5
sinB = 5/13, cosB = 5/13, tanB = 5/12
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
Sin(A) = 12/13
Sin(B) = 5/13
Cos(A) = 5/13
Cos(B) = 12/13
Tan(A) = 12/5
Tan(B) = 5/12
Which statement illustrates the distributive property?
3(4+5) = 3(4)+5
3(4+5)-3(4)+ 3(5)
3[(4)(5)] - 3(4)+3(5)
3[(4)(5)] = [ 3(4)][3(5)]
Answer:
3(4+5)=3(4)+3(5)
Hope it helps
Step-by-step explanation:
solve the equation below -2x+16=10
Answer:
x=3
Step-by-step explanation:
how does DIAMETER of wire affect:
Strength
range
stiffness
The diameter of a wire significantly impacts its strength, range, and stiffness.
1. Strength: As the diameter of a wire increases, its overall strength improves. A larger cross-sectional area allows the wire to withstand greater forces before breaking. This is because the increased material can distribute force more effectively, resulting in enhanced tensile strength.
2. Range: The diameter of a wire also influences its range or length. Thicker wires tend to have shorter range capabilities compared to thinner wires. As the diameter increases, the weight and stiffness of the wire rise as well, making it harder to extend or coil over long distances. Conversely, thinner wires are more flexible and lightweight, enabling them to cover greater lengths.
3. Stiffness: Lastly, the diameter of a wire impacts its stiffness, which is the resistance of the wire to bending or deformation. With a larger diameter, the stiffness of the wire increases due to the higher amount of material present. This means that it requires more force to bend or change the shape of the wire, resulting in greater rigidity. On the other hand, wires with smaller diameters are more pliable and can easily be bent or manipulated.
In summary, the diameter of a wire plays a crucial role in determining its strength, range, and stiffness. Thicker wires exhibit enhanced strength and stiffness but may have limited range capabilities, while thinner wires are more flexible and suitable for longer distances but may not be as strong or rigid.
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a food truck operator has traditionally sold 75 bowls of noodle soup each day. he moves to a new location and after a week sees that he has averaged 85 bowls of noodle soup sales each day. he runs a one-sided hypothesis test to determine if his daily sales at the new location have increased. the p-value of the test is 0.031. how should he interpret the p-value?
There is a 3.1% chance of obtaining a sample with a mean of 85 or higher assuming that the true mean sales at the new location are still equal to or less than 75 bowls a day.
What is the P value in statistics?
P value is a part of hypothesis testing. The P value is a measurement used against some data in testing.
Given in question,
Food Truck in Old location:
Sold = 75 bowls of noodle soup
New location Sold = 85 bowls of noodle soup
p-value = 0.031
there is a 3.1% chance of obtaining a mean with a sample.
similarly, that is we can tell that the true mean sales at the new location will be still equal to or less than 75
i.e. [P(X=75) ≤ P(X=85)] bowls a day.
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What is 2 divided by 3? Explain the steps pleas.
The value of 2 divided by 3 is 0.67
How to evaluate the quotient expression?From the question, we have the following parameters that can be used in our computation:
2 divided by 3
To start with, we need to represent the expression properly as a quotient
So, we have the following representation
2 divided by 3 = 2/3
Evaluate the quotient expression using a calculator
This gives
2 divided by 3 = 0.67
Hence, the solution to 2 divided by 3 is 0.67
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Is √8 a rational or irrational number
Answer:
irrational
Step-by-step explanation:
irrational because there will still be a 2 under the root when you simplify to 2√2
greatest common factor of -4x to the 4 power minus -8x to the 3 power?
I don’t know how to solve for x or y, I’m knew to this and CANT remember the formula
Answer:
\( \frac{6}{x} = \frac{8}{24} \)
\(8x = 144\)
\(x = 18\)
\( \frac{8}{24} = \frac{y}{12} \)
\(24y = 96\)
\(y = 4\)
So x = 18 and y = 4.
Which of the following scenarios does not have a unit rate of 8?
O Joey rides his bike at a constant rate for 4 hours, x, and travels a total distance of 32 miles.
Jaclynn buys 3 pairs of socks, X, and spends a total of $24.
O Josephine buys 0.5 pounds of grapes, x, for $4.00.
O Jerry ran at a constant rate for 8 minutes, x, and traveled 2 miles.
Answer:
Jerry's Running
Step-by-step explanation:
Joey's biking:
32/4=8 Not this one.
Jaclynn's Shopping:
24/3=8 Not this one.
Josephine's Grapes:
4/0.5=8 not this one
Jerry's Running:
2/8= .25 This one is correct
Which theorem or postulate proves that △ABC and △DEF are similar? The two triangles are similar by the ________
The two triangles are similar by the Angle- Angle and also SIde -Side postulates.
A postulate is defined as a statement that is assumed to be true without any proof.
A theorem is defined as a true statement and is supported by a proof (or can be proven).
Here, two triangles can be said to be similar through many postulates :
1. △ABC and △DEF are similar if
angle ABC is equal to angle DEF; and
angle BCA is equal to angle EFD
(or any other two corresponding angles are same)
This can be said that △ABC and △DEF are similar with Angle- Angle (AA) postulate.
2. △ABC and △DEF are similar if
side AB/ BC is proportional to side DE/ EF;
(or ratio of two corresponding sides are similar)
This can be said that △ABC and △DEF are similar with Side Side (SS) postulate.
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A sample of 34 observations is selected from a normal population. The sample mean is 28, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level.
H0: μ ≤ 26
H1: μ > 26
a.Is this a one- or two-tailed test?
One-tailed test
Two-tailed test
b.What is the decision rule?
Reject H0 when z > 1.645
Reject H0 when z ≤ 1.645
c.What is the value of the test statistic? (Round your answer to 2 decimal places.)
d.What is your decision regarding H0?
Reject H0
Fail to reject H0
e-1) What is the p-value? (Round your answer to 4 decimal places.)
e-2)Interpret the p-value? (Round your final answer to 2 decimal places.)
a. The alternative hypothesis (H1) specifies that is greater than 26, indicating a directed alternative, this is a one-tailed test.
b. The alternative hypothesis is one-sided and argues that > 26, hence the critical value is 1.645.
c. The value of the test statistic (z-score) is z ≈ 3.82.
d. We reject the null hypothesis (H0) because the test statistic (z = 3.82) is higher than the crucial value (1.645).
In this case, the p-value is the probability of observing a sample mean of 28 or greater, assuming the population mean is 26.
a. This is a one-tailed test because the alternative hypothesis (H1) states that μ is greater than 26, indicating a directional alternative.
b. The decision rule for a one-tailed test at a significance level of 0.05 is to reject the null hypothesis (H0) if the test statistic is greater than the critical value. In this case, the critical value is 1.645 because the alternative hypothesis is one-sided and states that μ > 26.
c. The value of the test statistic (z-score) can be calculated using the formula:
z = (x - μ) / (σ / √n)
where x is the sample mean, μ is the population mean, σ is the population standard deviation, and n is the sample size.
In this case:
x = 28
μ = 26
σ = 4
n = 34
Substituting the values into the formula:
z = (28 - 26) / (4 / √34) ≈ 3.82
d. Since the test statistic (z = 3.82) is greater than the critical value (1.645), we reject the null hypothesis (H0).
e-1. To calculate the p-value, we need to find the area under the standard normal distribution curve to the right of the test statistic (z = 3.82). We can use a standard normal distribution table or a calculator to find this area.
The p-value is the probability of observing a test statistic as extreme as the one calculated (or more extreme) under the null hypothesis.
e-2. Interpreting the p-value: The p-value represents the probability of obtaining a sample mean as extreme as the one observed (or more extreme) if the null hypothesis is true.
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C) if two individuals are chosen at random from the population, what is the probability that at least one will have some college or a college degree of some sort?
The probability that neither of the two individuals has some college or a college degree is (1 - P(college))^2.
To calculate the probability that at least one of the two individuals chosen at random from the population will have some college or a college degree, we need to consider the complement of the event, which is the probability that none of the individuals have a college degree.
Let's assume that the population size is N, and the number of individuals with a college degree is C. The probability that an individual does not have a college degree is (N - C) / N.
When choosing the first individual, the probability that they do not have a college degree is (N - C) / N.
When choosing the second individual, the probability that they do not have a college degree is also (N - C) / N.
Since these events are independent, we can multiply the probabilities together:
P(no college degree for either individual) = (N - C) / N * (N - C) / N = (N - C)² / N².
Now, to find the probability that at least one of the individuals has a college degree, we subtract the probability of none of them having a college degree from 1:
P(at least one with a college degree) = 1 - P(no college degree for either individual) = 1 - (N - C)² / N².
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After a tax of 22%, a car sells for $9800.
What was its original price?
Before a tax of 22 %, the product has an original price of $ 8032.79.
How to determine the original price of a product
In this problem we find the case of a product that is sold including a given tax, that is, the price of the product before taxes. The original price can be found by means of the following equation, which is in terms of resulting price and tax rate:
C = C' / (1 + r / 100)
Where:
C - Original price, in monetary unit.C' - Resulting price, in monetary unit.r - Tax rate, in percentage.If we know that C' = $ 9800, r = 22 %, then the original price of the product is:
C = 9800 / (1 + 22 / 100)
C = 9800 / (122 / 100)
C = 9800 / 1.22
C = $ 8032.79
Therefore, the original price of the product, that is, the price before a tax of 22 %, is equal to $ 8032.79.
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A running track has two semi-circular ends with radius 25m and two straights of length 87.6m as shown.
Calculate the total distance around the track rounded to 1 DP.
The total distance around the track is 332.2 meters
How to calculate the total distance?The complete question is in the attached image
The given parameters are:
Radius, r = 25 m
Length, l = 87.6 m
Start by calculating the circumference of the two semi-circular ends using:
\(C = 2\pi r\)
So, we have:
C = 2* 3.14 * 25
Evaluate
C = 157
The total distance around the track is then calculated as:
Total = 2l + C
This gives
Total = 2 * 87.6 + 157
Evaluate
Total = 332.2
Hence, the total distance around the track is 332.2 meters
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My Notes Ask Your Teacher This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise Use continuity to evaluate the limit. 12 Vx im Part 1 of 3 Consider the intervals for which the numerator and the denominator are continuous. The numerator 12 vx is continuous on the interval The denominator 12+x is continuous and nonzero on the interval Submit Skip( Need Help? Read It Talk to a Tutor
To evaluate the limit using continuity, we need to consider the intervals on which both the numerator and denominator are continuous. The numerator 12Vx is continuous for all values of x. The denominator 12+x is continuous and nonzero for all values of x except when x = -12.
Continuity is a property that ensures a function is well-behaved and does not have any abrupt jumps or holes in its graph. To evaluate the limit, we need to ensure that both the numerator and denominator of the expression are continuous on the interval in question. In this case, the numerator 12Vx is a simple function and is continuous for all values of x. There are no restrictions or exceptions.
The denominator 12+x is also continuous for all values of x except when x = -12. At x = -12, the denominator becomes zero, which would result in an undefined value for the fraction.
Therefore, the numerator is continuous on the entire real number line, and the denominator is continuous and nonzero for all values of x except x = -12.
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Find all values of x that make the triangles congruent. Explain your reasoning.
Answer:
x = \(\frac{4}{5},5\)
Step-by-step explanation:
If both the triangles ΔABC and ΔBCD are congruent,
Corresponding sides of both the triangles will be proportional.
\(\frac{AB}{BD}=\frac{AC}{CD}\)
\(\frac{5x}{3x+10}=\frac{5x-2}{4x+3}\)
5x(4x + 3) = (5x - 2)(3x + 10)
20x² + 15x = 15x² + 50x - 6x - 20
20x² + 15x = 15x² + 44x - 20
20x² - 15x² = 44x - 15x - 20
5x² = 29x - 20
5x² - 29x + 20 = 0
5x² - 25x - 4x + 20 = 0
5x(x - 5) - 4(x - 5) = 0
(5x - 4)(x - 5) = 0
\(x=\frac{4}{5},5\)
0)
A car traveled 125 miles in 2.5 hours. If the car continued at the same rate, how far had it traveled after 3 hours?
Miles traveled after 3 hours =
Answer:
150
Step-by-step explanation:
125/2.5=50
50x3 =150
Answer:
150
Step-by-step explanation:
I took the Practice/Instruction :)
the differences of 4 and a number x is 14
Answer:
x=18
Step-by-step explanation:
x-4=14
+4 +4
x=18
What value of x makes the equation true?
9x + 11 = 2
What is the instantaneous speed of the child at t=10
Answer:
0.50m/s
Step-by-step explanation: