Answer:
9
Step-by-step explanation: i took the test and went over it with my teacher
Help please! Which of the following tables represents a relation that is a function? Explained answer please
A
B
C
D
Answer:
Step-by-step explanation:
THE ANSWER TO YOUR QUESTION IS C.
1. The last time Jerry took a math quiz he got a score of 1.5 (out of 4) because he didn't study.
When he retook the quiz a week later he got a score of 4. By what percent did his score
increase by?
Answer:
6 is my final answer
Step-by-step explanation:
set as brainliest
please answer number 2, show work
Answer:
its 48
Step-by-step explanation: its 48 because 6 x 8 is 48
Simplify this problem?
Answer:
-22
Step-by-step explanation:
mark this brainliest and rate 5 stars if it helped :)
Willis is older than Heard. The difference of their ages is 12 and the sum of their ages is 50. Find the age of each.
Let:
x = Willis Age
y = Heard Age
The difference of their ages is 12 and the sum of their ages is 50, so, let:
\(\begin{gathered} x-y=12_{\text{ }}(1) \\ x+y=50_{\text{ }}(2) \end{gathered}\)Using elimination method:
\(\begin{gathered} (1)+(2) \\ x+x-y+y=12+50 \\ 2x=62 \\ \text{Divide both sides by 2:} \\ \frac{2x}{2}=\frac{62}{2} \\ x=31 \end{gathered}\)Replace the value of x into (1):
\(\begin{gathered} 31-y=12 \\ y=31-12 \\ y=19 \end{gathered}\)Willis is 31 and Heard is 19
Can some please help me with this problem
Answer:
2/3
Step-by-step explanation:
I don't have a step by step explanation bu ti have had a question like this recently. sorry if this does not help.
Robin weighs her math textbook and finds that it is 2 kilograms. How many grams does her textbook weigh?
Answer:
2000
Step-by-step explanation:
1 kilogram is 100 grams therefore 2 kilo grams is equal to 2000 grams
The word kilo means thousand in Greek and i think French
:)
Answer:
2,000 grams :)
if the teacher picks a student at random,what is the probability that she will select a student with a birthday in january?
a - 11/110
b-11/100
c-33/100
d-3/100
Answer:
B
Step-by-step explanation:
Add all numbers and get 300 then divide 33 by 300 to get your answer
What is 2+2-4 x 40-60
and the answer is...........????
Answer:
-216
Step-by-step explanation:
use the rule bodmas
bracket,othersign, division, multiplication, addition, subtraction
5,356+2,398
=(5,356+2)+ (2,398 + 2)
5,358+2400=7,758
is kElly's answer correct? what mistake did she make?
Answer:
No because she added 2 instead of 2398. She thought the 2 was separate because of the comma separating the 2 thousand. She also made a mistake by thinking she could add easily by adding 2 to 2398 to make 2400.
The addition of the given numbers is 7,758.
Use the concept of addition defined as:
In mathematics, addition is an arithmetic operation that combines two or more numbers to produce a sum.
It is a fundamental operation used to calculate the total or the result of combining quantities. When adding numbers, you start with the first number, and then incrementally add subsequent numbers to obtain a final sum. The order in which numbers are added does not affect the result, thanks to the commutative property of addition.
This fundamental concept of addition forms the basis for more advanced mathematical operations and problem-solving techniques.
The given numbers are:
5,356+2,398
Now simply add these numbers:
5 3 5 6
+2 3 9 8
7 7 5 4
Hence,
The addition of the given numbers is 7,758.
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Find the coefficient of x in the polynomial ( 4y - 13 - 5z - 4x )
\(\large\huge\green{\sf{Answer:-}}\)
the coefficient of x in the polynomial ( 4y - 13 - 5z - 4x ) is -4Answer:
\(\huge\boxed{\sf -4}\)
Step-by-step explanation:
The given polynomial is:
4y - 13 - 5z - 4x
Coefficient:
The term/number (along with the sign) with that certain variable is called coefficient.
x has the coefficient of :
-4 (number along with x)
\(\rule[225]{225}{2}\)
Hope this helped!
~AH1807What’s the value of x in each triangle?
Answer:
The value of x is 70°.
Step-by-step explanation:
Let's name the angle to the right of 125° as 'y'.
y = 180 - 125 (linear pair)
y = 55°
Now, we know that all the angles in a triangle sum up to 180°. (Angle Sum Property)
x = 180 - (55+55)
x = 180 - 110
x = 70°
carmen is taller than ramon but shorter than ricardo. carmen is shorter than ryan who is taller than ricardo. who is the tallest? who is the shortest?
Answer:
ramon is the shortest
ryan is the tallest
carmen is taller than ramon
carmen is shorter than ricardo
carmen is shorter than ryan
ryan is taller than ricardo
quotient of 1222 divided by 13
Answer:
94
Step-by-step explanation:
If Janet rolls a fair 6-sided number cube 300 times, what is a reasonable prediction
on how many times she will roll a 5?
There are 50 predicted rolls for 5 in 300 times of rolls.
What is probability?A probability is a number that reflects the chance or likelihood that a particular event will occur.
Given that, Janet rolls a 6-sided number cube 300 times,
Probability = (Favourable Outcomes)/(Possible Outcomes)
Favourable Outcomes: 5 (1 total)
Possible Outcomes: 1,2,3,4,5,6 (6 total)
Probability of a 5 in any given roll of a die = 1/6
1/6x300 = 50 = 50 predicted roll with 5.
Hence, There are 50 predicted rolls for 5 in 300 times of rolls.
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A coat and a pair of boots are on sale for 20% off. the regular price of the coat is 225$. the regular price of the boots is 130$. find the sale price of the coat. Explain. What is the sale price of the boots?
The sale price of coat is $180 and the sale price of boot is $284 when 20% off a coat and a pair of boots are now on sale.
Given that,
20% off a coat and a pair of boots are now on sale. The coat normally sells for $225. The boots cost $130 on the open market.
We have to find the coat's sale price and what is the cost of the boots on sale.
We know that,
The formula for the sales price is S = P - PD
Where, S is sales price, P is the original price and D is the discount percent.
P = 225 and D = 20%
S = 225 - 225 × 20%
S = 225 - 45
S = $180 is the sale price of coat.
Now,
Total regular price = 225 + 130 = 355
S = 355 - 355 × 20%
S = $284 is the sale price of boots.
Therefore, The sale price of coat is $180 and the sale price of boot is $284.
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PLEASE WHAT IS THIS?!!? WHATS THE ANSWER?
Answer: bottom right
Simplify the expression 7m+7 -5m
Victoria correctly determined the area of this parallelogram by adding the areas of the rectangle and triangles.
How did Victoria determine the area?
Enter your answer by filling in the boxes.
Victoria determined that the area of the rectangle is
m² and that the area of each triangle is
m². She added the areas of the rectangle and the two triangles for a total area of
Answer:
56 m²
16 m²
88 m²
Step-by-step explanation:
The formula for the area of a rectangle is:
A=L×W (area=length × width)
A=7×8
A=56m²
The formula for the area of triangle is:
1/2×b×h (1/2 × base × height)
A=1/2×4×8
A=2×8
A=16m²
For the total area you will now add the area of each shape. We will multiply triangle area by 2 because there is 2 triangles.
A=56+2(16)
A=56+32
A=88m²
Answer:
I got the Answer:
56 m²
16 m²
88 m²
The relation R is shown in the table below
Answer:
No image sorry
Step-by-step explanation:
love your username lm.ao
Find the area of the region
The area of the region that lies inside the circle r = cosθ and outside the cardioid r = 1 - cosθ is √3 - π/3.
What is the area of the region that lies inside the circleTo find the area of the region that lies inside the circle r = cosθ and outside the cardioid r = 1 - cosθ, we can integrate the difference between the areas of the two curves.
First, we can find the bounds of integration by setting the two curves equal to each other:
cosθ = 1 - cosθ
2cosθ = 1
cosθ = 1/2
θ = π/3, 5π/3
The area of the region can then be found by integrating the difference between the areas of the two curves with respect to θ from π/3 to 5π/3:
A = ∫[π/3, 5π/3] (1/2 (1 - cosθ)^2 - 1/2 cos^2θ) dθ
Simplifying the integrand, we get:
A = ∫[π/3, 5π/3] (1/2 - cosθ/2 - 1/2cos^2θ) dθ
A = ∫[π/3, 5π/3] (1/2 - cosθ/2 - 1/4(1 + cos2θ)) dθ
A = ∫[π/3, 5π/3] (3/4 - cosθ/2 - 1/4cos2θ) dθ
Using the trigonometric identity cos2θ = 2cos^2θ - 1, we can simplify the integrand further:
A = ∫[π/3, 5π/3] (3/4 - cosθ/2 - 1/8(2cos^2θ - 1)) dθ
A = ∫[π/3, 5π/3] (11/8 - 1/16cos^2θ - cosθ/2) dθ
Integrating with respect to θ, we get:
A = [11/8θ - 1/48sin2θ - 1/2sinθ] [π/3, 5π/3]
A = (11/4π - √3/8 - 1/2) - (11/12π + √3/24 - 1/2)
A = √3 - π/3
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Work out the percentage change to 2 decimal places when a price of £12 is increased to £15.99. Work out the percentage change to 2 decimal places when a price of £12 is increased to £15.99.
Answer:
\(\%Increase = 33.25\%\)
Step-by-step explanation:
Given
Initial = 12
Final = 15.99
Required
Determine the percentage increment
This is calculated as thus:
\(\%Increase = \frac{Final - Initial}{Initial} * 100\%\)
Substitute values for Initial and Final
\(\%Increase = \frac{15.99 - 12}{12} * 100\%\)
\(\%Increase = \frac{3.99}{12} * 100\%\)
\(\%Increase = \frac{3.99* 100\%}{12}\)
\(\%Increase = \frac{399\%}{12}\)
\(\%Increase = 33.25\%\)
Hence, the percentage increment is 33.25%
What is the simplest form of StartRoot 3,025 EndRoot?
16
55
52(112)
52+(112)
Right triangle with a hypotenuse of 159 ft and Angle A = 34 degree
Calculate the length of the sides they should be rounded to the nearest whole foot. The rounded for the legs (side) should be used to calculate the area of the triangle
the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.
Given: The hypotenuse of the right triangle,
c = 159 ft; angle A = 34°
We know that, in a right-angled triangle:
\($$\sin\theta=\frac{\text{opposite}}\)
\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)
\({\text{hypotenuse}}$$\)
We know the value of the hypotenuse and angle A. Using trigonometric ratios, we can find the length of sides in the right triangle.We will use the following formulas:
\($$\sin\theta=\frac{\text{opposite}}\)
\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)
\({\text{hypotenuse}}$$$$\tan\theta=\frac{\text{opposite}}\)
\({\text{adjacent}}$$\) Length of side a is:
\($$\begin{aligned} \sin A &=\frac{a}{c}\\ a &=c \sin A\\ &= 159\sin 34°\\ &= 91.4 \text{ ft} \end{aligned}$$Length of side b is:$$\begin{aligned} \cos A &=\frac{b}{c}\\ b &=c \cos A\\ &= 159\cos 34°\\ &= 131.5 \text{ ft} \end{aligned}$$\)
Now, we have the values of all sides of the right triangle. We can calculate the area of the triangle by using the formula for the area of a right triangle:
\($$\text{Area} = \frac{1}{2}ab$$\)
Putting the values of a and b:
\($$\begin{aligned} \text{Area} &=\frac{1}{2}ab\\ &=\frac{1}{2}(91.4)(131.5)\\ &= 6006.55 \approx 6007 \text{ sq ft}\end{aligned}$$\)
Therefore, the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.
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The measure of one small angles of a right triangle is 45 less than twice the measure of the other small angle. Find the measure of both angles
Answer:
x + x - 45 = 90
2x - 45 = 90
2x = 135
x = 67.5, so x - 45 = 22.5
The other two angles measure 22.5° and 67.5°.
PLEASE HELP QUICKLY(25 points)!!
Match the description with the correct answer.
(questions)
———————
y-intercept -
slope-
domain-
range-
is this graph increasing, decreasing or both-
x-intercept-
———————
(answer choices)
(4,0), (0,4), (-2,0), (0,-2), +2, -4,
input values, increasing, decreasing,
both increasing and decreasing, output values
———————
please help quickly its worth 10.34 points on my test
Answer: In that picture the slope is increasing
Step-by-step explanation: positive rise and positive run (uphill from left to right)
A florist currently makes a profit of $20 on each of her celebration bouquets and sells an average of 30 bouquets every week. She noticed that when she reduces the price such that she earns $1 less in profit from each bouquet, she then sells three more bouquets per week. The relationship between her weekly profit, P(x), after x one-dollar decreases is shown in the graph below.
A graph for p of x is a downward open parabola with its vertex at (5, 725) and passes through the points (negative 10, 0), and (20, 0).
Use the graph to complete each statement about this situation.
The maximum profit the florist will earn from selling celebration bouquets is $.
The florist will break-even after one-dollar decreases.
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is ( , ).
Answer:
The maximum profit the florist will earn from selling celebration bouquets is $725.
The florist will break-even after one-dollar decreases when her profit is zero. From the graph, this occurs at x = 10. So the florist will break-even after 10 one-dollar decreases.
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (0, 10). This is because the profit is positive for values of x between 0 and 10, and becomes negative after 10.
Step-by-step explanation:
Two boards are placed end to end to make a walkway. One board is 6 feet 11 inches long, and the other board is 5 feet 7 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.
The walkway is 11 feet 6 inches long.
To find the length of the walkway, we need to add the lengths of the two boards.
The first board is 6 feet 11 inches long, which can be written as 6 + 11/12 feet using the fact that there are 12 inches in a foot.
The second board is 5 feet 7 inches long, which can be written as 5 + 7/12 feet.
Now we can add the lengths of the two boards:
6 + 11/12 feet + 5 + 7/12 feet
= 11 + 6/12 feet
=11 + 1/2 feet
Therefore, the walkway is 11 feet 6 inches long.
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What is the area of the circle? If your doubled the radius, what would the new area be? What is the ratio of the areas from the larger circle to the smaller circle?
The area of the circle is 78.5m² And when the radius is doubled, the area will be 314m².
The ratio of the larger circle to the smaller circle is 4 : 1
What is area of circle?Area is defined as the total space taken up by a flat (2-D) surface or shape of an object. The area is measured in squared units.
The area of a circle is expressed as :
A = πr²
A = 3.14 × 5²
A = 3.14 × 25
A = 78.5m²
When the radius is doubled, i.e
r = 5×2 = 10m
A = πr²
A = 3.14 × 100
A = 314m²
Therefore the area of the new circle is 314m²
The ratio of the area of the larger circle to the area of the smaller circle is ;
314/78.5 = 4/1 = 4 : 1
therefore the ratio of the larger circle to the smaller circle is 4 : 1
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The table below models a exponential function. Find f(8)
Answer:
Step-by-step explanation:
f(x) = 65536(b)^x
Find b by substituting a point. (1, 16384)
16384 = 65536(b)^1
b=0.25
Thus,
f(x) = 65536(1/4)^x
Plug in 6,
f(8) = 1