4 years ago

Simplify, THEN evaluate for x = 3, y = -4, and z= -2. 7(x - y) - 3(2 + 2x)

Mathematics

1 answer:

Tamiku [17]4 years ago

8 0

Answer: 25

Step-by-step explanation:

7(x - y) - 3(2 + 2x)

= 7x - 7y - 6 - 6x

= x - 7y - 6

for x = 3, y = -4

3 - 7(-4) - 6

= 3 + 28 - 6

= 31 - 6

= 25

You might be interested in

Kapil needed to buy a long wooden beam. He went to two sawmills that each charge an initial fee plus an additional fee for each

matrenka [14]

Answer: first sawmill charges more for each meter of wood. And first mill has a cheaper price for 5-meter wooden beam.

Step-by-step explanation:

P=5+20x. The first sawmill charges $20. Then 110-20/5-0=18 Which means The second sawmill charges $18 for each meter of wood. Since 20>18 The first sawmill charges more for each meter of wood.

P = 5+20x

=5+20x•5

= 105

The first mill charges $105 For a 5 meter beam while the second beam charges $110

7 0

4 years ago

What value of θ makes sinθ = cos30° a true statement? A) 30° B) 45° C) 60° D) 90°

Tcecarenko [31]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Express as simply as possible with a rational denominator 7/√10

victus00 [196]

Answer:

7√10 / 10.

Step-by-step explanation:

7/√10

Multiply top and bottom by √10:

= 7√10 / 10

5 0

3 years ago

Andrea is selling candles for a fundraiser. She spent $50 on supplies for making the candles. She plans to sell the

Debora [2.8K]

The independent variable would be the Candles she sells for $10

3 0

3 years ago

What is the value of (3x10^-2)?

11Alexandr11 [23.1K]

Answer:

0.032

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers