Answer:
x^3 + x^2 - 5x + 3
Question 65
Find area of figure. Round to the nearest hundredth if necessary.
rectangle with circle taken out
5.0 m
10.4 m
(Use 3.1 4 for a.)
Answer:
32.38 square m
Step-by-step explanation:
Diameter of semicircle = 5 m
Hence, radius = 5/2 = 2.5 m
Area of figure = Area of rectangle - 2 times area of one semicircle
\( = l \times b - 2 \times \frac{1}{2} \pi {r}^{2} \\ \\ = 10.4 \times 5 - \pi {r}^{2} \\ = 52 - 3.14 \times {(2.5)}^{2} \\ = 52 - 3.14 \times 6.25 \\ = 52 - 19.625 \\ = 32.375 \\ \approx 32.38 \: {m}^{2} \\ \)
Juliet has a choice between receiving a monthly salary of $1900 from a company or a base salary of $1800 and a 5% commission on the amount of furniture she sells during the month. For what amount of sales will the two choices be equal?
Juliet will earn the same amount of money whether she chooses a monthly salary of $1900 from the company or a base salary of $1800 plus a 5% commission on furniture sales if her sales amount to $2000.
To find the amount of sales for which the two salary choices are equal, we set the equation for the base salary plus commission equal to the equation for the flat monthly salary. The equation can be written as:
1800 + 0.05x = 1900
where x is the amount of furniture sales in dollars.
Simplifying and solving for x, we get:
0.05x = 100
x = 2000
If she sells less than $2000 of furniture, she will earn more with the flat monthly salary of $1900. If she sells more than $2000 of furniture, she will earn more with the base salary plus commission. This calculation provides an important decision-making tool for Juliet, as she can tailor her salary choice based on her expected sales for the month.
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Question 6
Which is the graph of y=-x-3?
Graph B
Graph C
Graph A
Answer:
Step-by-step explanation:
what is the area of the pentagon shown below a.27 square feet b. 58.5 c.85.5 d.117
Explain why.
Answer:
Option B, Area of pentagon = 58.5 Square feet
Step-by-step explanation:
The remaining part of the question is attached as image
Solution
Area of pentagon has a triangle and a trapezoid
Area of triangle = 0.5 *base *height = 0.5*9 *3 = 13.5 square feet
Area of trapezoid = Area of rectangle – 2* area of smaller triangles
= 9 ft * 6ft – ( 2 * 0.5 * 6 ft * (9 ft – 6ft) /2
= 54 – (1*6*1.5)
Area of pentagon = 13.5 + 45 = 58.5 Square feet
Hence, option B is correct
The of the matrix whose columns are vectors which define the sides of a parallelogram one another is the area of the parallelogram?
Answer:
absolute value of the determinant, adjacent to, equal to
Step-by-step explanation:
The absolute value of a determinant of the \(\text{matrix whose}\) columns are the vectors and they define the \(\text{sides}\) of a \(\text{parallelogram}\) which is adjacent to one another and is equal to the \(\text{area}\) of the \(\text{parallelogram}\).
The determinant is a real number. They are like matrices, but we use absolute value bars to show determinants whereas to represent a matric, we use square brackets.
Solve using the quadratic formula.
q2 + 69 + 9 = 0
Answer:
the value of q = -3
Step-by-step explanation:
The computation of the equation is shown below:
Given that
q^2 + 6q + 9 = 0
q^2 + 3q+ 3q + 9
q(q + 3) + 3(q + 3)
(q+3) (q+3)
q = -3
Hence, after solving it the value of q = -3
Joe made $42 in 6 hours. How many hours would he have to work to make $56? (Do not solve)
Answer:
42 dollars for 6 hrs means that each hour, he gets 7 dollars, assuming that this is a proportional relationship.
56-42=14, he needs 14 more dollars
14/7=2
2 more hrs
Step-by-step explanation:
16. Which value of x makes the inequality true?
4x>1.2
Ox= -0.3
Ox= -0.5
O x = 0.3
Ox=0.5
The inequality is true for the value of x as 0.5. The correct option is (D).
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given inequality is 4x > 1.2.
It can be solved as follows,
4x > 1.2
Divide both sides by 4 to obtain,
⇒ (4x ÷ 4) > (1.2 ÷ 4)
⇒ x > 0.3
Which implies that the values of x are greater than 0.3.
Analysing all the options give the result as 0.5.
Hence, the value of x that satisfies the given inequality is 0.5.
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In the diagram below of rhombus ABCD, AD congruent AC. Which of the following is the measure of angle BDC?
Answer:
m<BDC = 30°
Step-by-step explanation:
In a rhombus, each diagonal bisects a pair of opposite angles.
That makes angles ADB and BDC congruent.
Segments AD and AC are congruent, so in triangle ADC, angles ADC and ACD are congruent. Angle ADC is made up of congruent angles ADB and BDC, so m<BDC = (1/2)m<ACD.
In a rhombus, the diagonals are perpendicular. That makes triangle DEC a right triangle with right angle DEC. Then, angles BDC and ACD are complementary.
m<BDC + m<ACD = 90
(1/2)m<ACD + m<ACD = 90
(3/2)m<ACD = 90
m<ACD = 60
m<BDC = (1/2) m<ACD = 60/2 = 30
m<BDC = 30°
Statistical data of breakdowns of computer XXX show that the duration for trouble-free operation of the machine can be described as a gamma distribution with a mean of 40 days and a standard deviation of 10 days. The computer is occasionally taken out for maintenance in order to insure operational condition at any time with a 95% probability.
1. How often should the computer be scheduled for maintenance? Should it be shorter or longer than the mean of 40 days?
2. Three XXX computers were acquired at the same time by an engineering consulting firm. The computers are operating under the same environment, workload, and regular maintenance schedule. The breakdown times between the computers, however, may be assumed to be statistically independent. What is the probability that at least one of the three machines will break down within the first scheduled maintenance time?
1. In this case, we want the reliability to be 95%, so the probability of not breaking down is 0.95.
2. Probability of no breakdowns = (reliability of a single machine)^3. Probability of at least one breakdown = 1 - Probability of no breakdowns
1. To determine how often the computer should be scheduled for maintenance, we need to consider the reliability and the desired level of operational condition. Since the duration for trouble-free operation follows a gamma distribution with a mean of 40 days, this means that, on average, the computer can operate for 40 days before a breakdown occurs.
To ensure operational condition with a 95% probability, we can calculate the maintenance interval using the concept of reliability. The reliability represents the probability that the machine will not break down within a certain time period. In this case, we want the reliability to be 95%, so the probability of not breaking down is 0.95.
Using the gamma distribution parameters, we can find the corresponding reliability for a specific time duration. By setting the reliability equation equal to 0.95 and solving for time, we can find the maintenance interval:
reliability = 0.95
time = maintenance interval
Using reliability and the gamma distribution parameters, we can calculate the maintenance interval.
2. To calculate the probability that at least one of the three machines will break down within the first scheduled maintenance time, we can use the complementary probability approach.
The probability that none of the machines will break down within the first scheduled maintenance time is given by the reliability of a single machine raised to the power of the number of machines:
Probability of no breakdowns = (reliability of a single machine)^3
Since the breakdown times between the machines are statistically independent, we can assume that the reliability of each machine is the same. Therefore, we can use the reliability calculated in the first part and substitute it into the formula:
Probability of at least one breakdown = 1 - Probability of no breakdowns
By calculating this expression, we can determine the probability that at least one of the three machines will break down within the first scheduled maintenance time.
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PLEASE HELPPPP!! I DONT UNDERSTAND WHAT TRIANGLE ITIS
3. Lucas and Tucker each have a baseball card collection.
The number of cards in Lucas's collection can be represented by c.
The number of cards in Tucker's collection is 4 times the number in Lucas's collection.
The total number of cards in both collections is 205.
What is c, the number of baseball cards in Lucas's collection?
41 cards
51 cards
820 cards
164 cards
.
●
what is 9/68x17/6 in simplest form
Answer:
3/8
Step-by-step explanation:
Multiply, then divide.
deigo has $500 dolars in his saving account each month he takes out $20 to pay for karate class. let m be the number of months write an expression yo show the total amount ain deigos saving account after m months
The expression shows the total amount in Diego's savings account after m months is 500 - 20m.
What is the total amount?
Two numbers are added together to form the sum. It is simple to figure out the sum of small integers. You can add two numbers using your fingertips. When two or more numbers are added together, a mathematical sum or maths sum is the outcome. It is the sum of the numbers when they are added up.
Here, we have
Given: Deigo has $500 in his saving account each month he takes out $20 to pay for karate class.
Let m be the number of months. Write an expression to show the total amount in Diego's savings account after m months.
The expression:
= 500 - 20m
Here m is the number of months
Hence, the expression shows the total amount in Diego's savings account after m months is 500 - 20m.
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anybody please Hrd can u sole this pleaseeeeeeeeeeeee. soon ASAP...
1i) 3m. 3 x m is the same as 3m
1ii) 2m + 15. 2 x m + 15 can be written as 2m + 15
Answer:
3m and 2m+15
Step-by-step explanation:
"three times m" = 3 multiplied by m = 3m
"15 more than twice the given number"
Twice the given number is 2m. 15 more than that is 2m+15.
What’s the mean of 46,57,66,63,49,52,61,68
Answer:
Step-byHow do I calculate the mean?
The mean can be calculated only for numeric variables, no matter if they are discrete or continuous. It's obtained by simply dividing the sum of all values in a data set by the number of value
-step explanation:
46+57+66+63+49+52+61+68= 462/8 the total number of observation
the answer 57
a man has been hired to paint the numbers 1 through 100 on apartment building doors. How many times will he paint the number 8?
Answer:
He will paint it 11 times. 8, 18, 28, 38, 48, 58, 68, 78, 88, 98
If the volume of the pyramid is 12 cubic inches,
what is the height of the pyramid, in inches?
Answer:
6
Step-by-step explanation:
h=3(12/6)
Line r has a slope of -6. Line s is parallel to line r. What is the slope of line s?
Thank you.
Answer:
-6
Step-by-step explanation:
Because two lines that are parallel have the same slope
between what 2 consecutive integers, √65 lies?
a, 4 and 5
b, 5 and 6
c, 7 and 8
d, 8 and 9
Answer:
Square root of
65
lies between
8.0
and
8.1
.
.
Step-by-step explanation:
Explanation:
Squares of natural numbers are
{
1
,
4
,
9
,
16
,
25
,
36
,
49
,
64
,
81
,
...
}
, which are squares of
{
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
...
.
}
As
65
lies between
64
and
81
, square root of
65
lies between
8
and
9
Further,
8.1
2
=
65.61
and as
8.0
2
=
64
, square root of
65
lies between
8.0
and
8.1
Answer:
between what 2 consecutive number, √65 lies?
D. 8 and 9
PLEASE HELP NO SCAM LINK OR REPORTED :) THANKS
Answer: b
Step-by-step explanation:
2x is x doubled
and then add 5 to the product
what does a obtuse angle measure between
Answer:
90° and 180°
Step-by-step explanation:
An obtuse angle is any angle larger than 90° and smaller than 180°
100 Points. Algebra question, photo attached. Graph the function. Describe its key characteristics. Thank you!
Answer:
Domain = (-∞, ∞) Range = (-∞, ∞)
End Behavior: As X -> -∞, Y -> -∞ | As X -> ∞, Y -> ∞
Inflection Point: (2,0)
Step-by-step explanation:
Suppose there are 15 jelly beans in a box—4 red, 1 blue, 4 white, and 6 green. A jelly bean is selected at random. What is the probability that the jelly bean is red or blue? (Round your answer to the nearest whole number.) The probability that the jelly bean is red or blue is %.
Answer:
33% chance
Step-by-step explanation:
Well first we have to create a fraction so we can convert to percent.
It wants us to figure out what the probability will be that a red or blue jelly bean is selected, so we need to add up the blue and red jelly beans.
\(\frac{1}{15} + \frac{4}{15}\) = \(\frac{5}{15}\)
Now we need to convert this to percent. Work:
5 ÷ 15 = 0.33333333333
0.33333333333 ÷ 10 = 0.33
0.33 = \(\frac{33}{100}\) = 33%
Therefore there is a 33% chance that the jelly bean picked will be red or blue.
The probability that the jelly bean picked is red or blue is 33%.
The probability that the jelly bean is either red or blue is calculated by dividing the number of jelly beans that are either red or blue by the total number of jelly beans.
= (Total number of red and blue jelly beans) / Total number of jelly beans
= (4 + 1) / (4 + 1 + 4 + 6)
= 5 / 15
= 1/3
= 33 %
In conclusion, the probability that the jelly bean that was picked is either red or blue is 33%.
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-5 = -36 / m + m
pls help me with this question hurry
This is 6 grade work
The solution of the given quadratic equation -5 = -36 / m + m is,
m = - 9 or m = 4
The given equation is
-5 = -36 / m + m
After re arranging it we get,
m² + 5m - 36 = 0
This is nothing but quadratic equation,
Since we know that,
The definition of a quadratic as a second-degree polynomial equation demands that at least one squared term must be included. It also goes by the name quadratic equations. The quadratic equation has the following generic form:
ax² + bx + c = 0
So now we can write,
⇒ m² + 9m - 4m - 36 = 0
⇒ m(m + 9) - 4(m + 9) = 0
⇒ (m + 9)(m - 4) = 0
Therefore,
⇒ (m + 9) = 0 or (m - 4) = 0
⇒ m = - 9 or m = 4
Thus,
The solution of the given expression is
m = - 9 or m = 4
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serenity held a fundraiser for her school and raised a total of $500. She received $150 in donations and then an additional $10 for every candle she sold.
Answer:
450 $ in tottle for every candle she sold.
Step-by-step explanation:
Find ywrite your answer as a whole number or decimal. do not round
From the figure, we can say:
\(\Delta\text{HGI\textasciitilde}\Delta\text{HFJ}\)Since both the triangles are similar, their sides are proportional.
We can write a proportional ratio:
\(\frac{3}{6}=\frac{y}{8}\)We can cross multiply and solve for y:
\(\begin{gathered} \frac{3}{6}=\frac{y}{8} \\ 6y=3\times8 \\ 6y=24 \\ y=\frac{24}{6} \\ y=4 \end{gathered}\)A right rectangular prism has a length of 15 cm width of 10 cm and a height of 5 cm savanna claims that doubling the length width and height of the prism will double its surface area is Savannah, correct?
No, Savannah is incorrect. Doubling the length, width, and height of a right rectangular prism will not double its surface area.
What is surface area?Surface area is the total area of an object's exposed faces, including any external surface area. It is a measure of the size of a surface and is usually expressed in square units such as square meters or square centimeters. Surface area is a two-dimensional measurement, since it only takes into account the area of a surface, and not its thickness or volume.
The surface area of a right rectangular prism is calculated by multiplying the length by the width and then multiplying that number by two and adding the two products together.
For example, the surface area of a right rectangular prism with a length of 15 cm, a width of 10 cm, and a height of 5 cm is calculated as follows:
Surface area = (15 cm * 10 cm) + (15 cm * 5 cm) = 150 cm2 + 75 cm2 = 225 cm2
Doubling the length, width, and height of this right rectangular prism would give us a prism with a length of 30 cm, a width of 20 cm, and a height of 10 cm. The surface area of this new prism would be calculated as follows:
Surface area = (30 cm * 20 cm) + (30 cm * 10 cm) = 600 cm2 + 300 cm2 = 900 cm2
As you can see, doubling the length, width, and height of the right rectangular prism does not double its surface area - the surface area has increased by four times (900 cm2/225 cm2 = 4).
In conclusion, doubling the length, width, and height of a right rectangular prism does not double its surface area; rather, it increases the surface area by a factor of four.
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No, Savannah is incorrect. Doubling the length, width, and height of a right rectangular prism will not double its surface area.
What is surface area?Surface area is the total area of an object's exposed faces, including any external surface area. It is a measure of the size of a surface and is usually expressed in square units such as square meters or square centimeters. Surface area is a two-dimensional measurement, since it only takes into account the area of a surface, and not its thickness or volume.
The surface area of a right rectangular prism is calculated by multiplying the length by the width and then multiplying that number by two and adding the two products together.
For example, the surface area of a right rectangular prism with a length of 15 cm, a width of 10 cm, and a height of 5 cm is calculated as follows:
Surface area = (15 cm * 10 cm) + (15 cm * 5 cm) = 150 cm2 + 75 cm2 = 225 cm2
Doubling the length, width, and height of this right rectangular prism would give us a prism with a length of 30 cm, a width of 20 cm, and a height of 10 cm. The surface area of this new prism would be calculated as follows:
Surface area = (30 cm * 20 cm) + (30 cm * 10 cm) = 600 cm2 + 300 cm2 = 900 cm2
As you can see, doubling the length, width, and height of the right rectangular prism does not double its surface area - the surface area has increased by four times (900 cm2/225 cm2 = 4).
In conclusion, doubling the length, width, and height of a right rectangular prism does not double its surface area; rather, it increases the surface area by a factor of four.
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which equation is not a linear function:
y=2x
y=x+2
y=x-2
y=x²
Answer:
Step-by-step explanation:
A linear equation can be written in the form
y = mx+b.
y = x² is not linear.
PLEASE HELP ME
Sophie deposited money into an account in which interest is compounded
semiannually at a rate of 2.2%. She made no other deposits or withdrawals and the
total amount in her account after 13 years was $22,099.87. How much did she
deposit? Round answer to nearest whole number. Do not include units in the
answer. Be sure to attach your work for credit.
By using compound interest formula, we conclude that Sophie deposited $16,638 (rounded to the nearest whole number) into the account.
What is compound interest?Compound interest is a method of calculating interest on a principal amount of money, where the interest earned on the initial principal is added to the principal at the end of each compounding period (usually monthly, quarterly, or annually).
According to given information:We can use the formula for compound interest to solve this problem. The formula is:
\(A = P(1 + r/n)^{(nt)\)
Where:
A = the total amount in the account
P = the principal (initial deposit)
r = the annual interest rate (as a decimal)
n = the number of times the interest is compounded per year
t = the number of years
We know the values for A, r, n, and t, so we can solve for P:
\(A = P(1 + r/n)^{(nt)\)
\(22,099.87 = P(1 + 0.022/2)^{(2*13)\)
\(22,099.87 = P(1.011)^{26\)
22,099.87 = 1.329P
P = 22,099.87 / 1.329
P = 16,637.55
Therefore, Sophie deposited $16,638 (rounded to the nearest whole number) into the account.
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