how do you find the surface area of composite figures??

Answer:

C

Step-by-step explanation:

Substitute t = 5.5 into h(t) , that is

h(5.5) = - 16(5.5)² + 128(5.5) = - 484 + 704 = 220 ft → C

Answer:

3,174

Step-by-step explanation:

Answer: 3,174

Step-by-step explanation:

115^2-69^2= sqrt8464=92

100+92=whole leg=192

192*69=13248= whole area

69*92=6348

6348/2

=3174

Answer:3

Step-by-step explanation:

Answer:

3 hours

Step-by-step explanation:

Answer:

n=170

Step-by-step explanation:

add 27 to 143

then the equation is n=170

Answer:

$3.29

Step-by-step explanation:

You need to find the unit price by dividing the cost by the amount.

24.33/7.4 = 3.29

Therefore, one pound of ham is $3.29.

Answer:

1. $3.29

2. $4.60

Step-by-step explanation:

Answer:

Circle

Solve for circumference

C≈28.36

A Area

64

Using the formulas

A=πr^2

C=2πr

Solving forC

C=2√πA=2·√π·64≈28.35926

Step-by-step explanation:

Hope it is helpful.....

9514 1404 393

Answer:

  an = n + 1

Step-by-step explanation:

This arithmetic sequence has a first term of 2 and a common difference of ...

  3 - 2 = 1

The general term is ...

  an = a1 + d(n-1)

Using a1=2 and d=1, this is ...

  an = 2 +1(n -1)

  an = 2 + n - 1 . . . . . eliminate parentheses

  an = n + 1 . . . . . . . .collect terms

Answer:

117 - 120 < -3

-3 < -3

False no

because it is not above -3

Step-by-step explanation:

Answer: No

Step-by-step explanation:

x = 9

y = 6

13x - 20y < -3?

Substitute the values of x and y

13(9) - 20(6) < - 3?

117 - 120 < -3?

-3 </ -3

-3 = -3

(9, 6) is not a solution

Answer: 36

Step-by-step explanation:

(7x4) +8 (4-3)

Answer:

22

Step-by-step explanation:

If x = 4 then the equation will be

7(4) + 8(4 -3)

14 + 32 - 24

= 22

Answer:

10 cans of paint

Step-by-step explanation:

Find the total area of the room

Divide the answer by 10meter squared.

Answer:

the answer is y= 2/1x + 10

Answer:

y = 1%

Step-by-step explanation:

From the formula;

Interest; i = PRT/100

P = £5000

R = 10%

After 1 year, we have;

i = 5000 × 10 × 1/100 = £500

Amount is now; 5000 + 500 = £5500

Since interest rate is now y% every year after the first one, then;

After 2nd year;

i = (5500 × y × 1)/100

i = 55y

So amount is now;

5500 + 55y

After 3rd year, interest is now;

i = (5500 + 55y) × y × 1/100

i = 55 + 0.55y²

Amount is now;

(5500 + 55y) + (55 + 0.55y²)

Since she has £5610.55 after 3 years, then;

(5500 + 55y) + (55 + 0.55y²) = 5610.55

0.55y² + 55y + 5555 - 5610.55 = 0

0.55y² + 55y - 55.55 = 0

From quadratic formula, y = 1%

Answer:

false

Step-by-step explanation:

ur teacher is dum

Answer:

0.75

Step-by-step explanation:

4 + 5=9

√(9)=3

3 ÷ 4 =  0.75

The  equations that are correct are:

0.02(750) + 0.03(x - 750) = 37.5

0.03(750 - x) = 37.5 - 15

Given:

Melissa earns a 2% commission on the first $750 of sales.

She earns a 3% commission on greater than $750 each week.

1. Sales up to $750:

Melissa earns a 2% commission on the first $750 of sales.

=0.02(750)

= 15

2. Sales exceeding $750:

Melissa earns a 3% commission on the amount of sales that exceed $750.

0.03(x - 750) = 37.5 - 15

Combining both equations, we have:

0.02(750) + 0.03(x - 750) = 15 + 37.5 - 15

15 + 0.03x - 22.5 = 37.5

0.03x - 7.5 = 37.5

Adding 7.5 to both sides

0.03x = 45

Dividing both sides by 0.03

x = 1500

Therefore, the correct equations that calculate the amount of money Melissa made in sales last week are:

Equation 1: 0.02(750) + 0.03(x - 750) = 37.5

Equation 2: 0.03(750 - x) = 37.5 - 15

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Answer:

She has 9 nickels, and 8 dimes.

Step-by-step explanation:

We know that she has a total of $1.25. We know that a nickel is $0.05, and that a dime is $0.10.

9x$0.05=$0.45

8x$0.10=$0.80

Answer:

9 nickels

8 dimes

Step-by-step explanation:

.05(n + 1) + .10n = 1.25

.05n + .05 + .10n = 1.25

.15n = 1.20

n = 1.2 / .15

n = 8

but there are 9 nickels because there is "one more nickel than dimes"

Answer:

40

Step-by-step explanation:

26/sin(40 degrees) = 40.4488

Answer:

7 units apart.

Step-by-step explanation:

Find the difference of the x-values from the two points.

4 - (-3) = 4 + 3 = 7

The horizontal distance from the two points is 7.

Hope this helps.

Answer:

$1,065

Step-by-step explanation:

Simple interest equation: A=P(1+rt)

P (principal amount) = 750, r (rate) = 3.5%, t (time) = 12 years

A=750(1+(3.5)(12))

A=1065

The amount of an investment to be worth after 12 years should be considered as the $1,065

Since

The deposited amount is $750

The rate of interest is 3.5% per year.

And, the time period is 12

So,

A=750(1+(3.5)(12))

A=1065

Hence, The amount of an investment to be worth after 12 years should be considered as the $1,065

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Answer:

2.5

20 divided by 8 equals to 2.5

Answer:

2

Step-by-step explanation:

The reciprocal of a number n is [tex]\frac{1}{n}[/tex]

Here n = 0.5, then reciprocal is

[tex]\frac{1}{0.5}[/tex] = 2

Answer:

15

Step-by-step explanation: divide 10 by 6 the multiply the quotient by 9

Answer:

15

Step-by-step explanation:

6\2=3. 3x3=9 10/2=5 5x3=15

Answer: 16.7%

I took the k12 unit test

The inflation rate is given by the percentage error and is given by the equation A = 16.71 %

What is Percentage Error?

The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.

Percentage error is the difference between the measured value and the true value , as a percentage of the true value

Percentage Error = [ ( | Measured Value - True Value | ) / True Value ]x 100

Given data ,

Let the inflation rate of percentage error be represented as A

Let the cost of the Jolly Peanut butter be = $ 3.59

So , the original cost = $ 3.59

Let the increased rate of Jolly Peanut butter be = $ 4.19

So , the increased rate = $ 4.19

Now , the inflation rate is given by the equation

Percentage Error = [ ( | Measured Value - True Value | ) / True Value ]x 100

Substituting the values in the equation , we get

Inflation rate A = ( ( 4.19 - 3.59 ) / 3.59 ) x 100

On simplifying the equation , we get

Inflation rate A = ( 0.6 / 3.59 ) x 100

Inflation rate A = 0.16713 x 100

Inflation rate A = 16.71 %

Therefore , the value of A is 16.71 %

Hence , the inflation rate is 16.71 %

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Answer:

always acute angle.as each angle is 60°

Answer: The answer is B.

Step-by-step explanation:

Just multiply -2 five times.

-2 * -2 * -2 * -2 * -2

-2*-2 = 4

-2*-2 * -2 = -8

4 * -8

=  -32

decimal form: .03125

Answer: I think the answer is B.