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2 years ago

Simplify the product using the distributive property.

2 answers:

8 0

To use the ditrib property you have to do the follwing
(3h-7)(3h-6)= (3h * 3h - 3h*6-7 * 3h +48)=9h^2 - 18h-21h+48= 9h^2 -39h +48
is choice C

Stels [109]2 years ago

4 0

Same as last time. you would use FOIL
F)3h*3h= 9h²
O)3h*-6= -18h
I) -7*3h= -21h
L) -7*-6=42
finished equation is: 9h²-39h+42

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Evaluate 21/a+4 when a=3

DochEvi [55]

Answer:

Step-by-step explanation:

All you have to do is plug in a. In this case, a=3.

21/a+4

21/(3)+4

21/3+4

7+4

If this helps please mark as brainliest

5 0

2 years ago

Read 2 more answers

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)

saw5 [17]

Answer: $19.6

Step-by-step explanation:

Linear function: f(x)=mx+c

, where m= rate of change in f(x) with respect to x.

c = Initial value.

Let c = Initial value of card , m= Charge per minute

x= Number of minutes calling time.

Then, 25.06= 38m+c (i)

21.03=69m+c (ii)

Eliminate (ii) from (i)

$4.03=-31m\\\\\Rightarrow\ m=\dfrac{4.03}{-31}\\\\\Rightarrow\ m=-0.13$

Put m in (i) , we get

$25.06= 38(-0.13)+c\\\\\Rightarrow\ 25.06=-4.94+c\\\\\Rightarrow\ c=25.06+4.94\\\\\Rightarrow\ c=30$

i.e. f(x)=-0.13x+30

if x=80 then

f(80)= -0.13(80)+30

=-10.4+30

=19.6

Hence, the remaining credit after 80 minutes of calls = $19.6

7 0

3 years ago

Find the coordinates of the midpoint of the segment whose endpoints are R(9, 3) and S(-1, -9).

amm1812

Answer:

$(4, -3 )$

General Formulas and Concepts:

Pre-Algebra I

Order of Operations: BPEMDAS

Algebra I

Midpoint Formula: $(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )$

Step-by-step explanation:

Step 1: Define

R (9, 3)

S (-1, -9)

Step 2: Find midpoint

Substitute: $(\frac{9-1}{2}, \frac{3-9}{2} )$
Subtract: $(\frac{8}{2}, \frac{-6}{2} )$
Divide: $(4, -3 )$

4 0

2 years ago

A young female lion was brought into the wildlife zoo weighing 53.5 pounds. After two years, she weighed 5.5 times

Lera25 [3.4K]

Answer:

324

Step-by-step explanation:

This is because when rounding you multiply 55 by 6 that is equal to 330 which is near 324. However if you want the answer spot on it would be 294

3 0

2 years ago

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one customer purchases 8 bags of dog food and 2 bags of dog food. The total weight of the purchases is 44 pounds. Another custom

Svetach [21]

68 pound of dog and cat food

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3 years ago