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andreyandreev [35.5K]
3 years ago
6

Simplify: –3(x – 5) – 8(y + 2) + (–3)(6 – 4b)

Mathematics
2 answers:
Paha777 [63]3 years ago
3 0
-3 (x - 5) - 8 (y + 2) + (-3) (6 - 4b)

First, simplify your brackets. / Your problem should look like: -3 (x - 5) - 8 (y + 2) + -3 (6 - 4b)
Second, simplify. / Your problem should look like: -3 (x - 5) - 8 (y + 2) - 3 (b - 4b)
Third, expand your problem. / Your problem should look like: -3x + 15 - 8y - 16 - 18 + 12b
Fourth, simplify. / Your problem should look like: -3x - 8y + 12b - 19

Answer: -3x - 8y + 12b - 19 (D)

Trava [24]3 years ago
3 0
−3(x−5)−8(y+2)−3(6−4b)

Distribute:

=(−3)(x)+(−3)(−5)+(−8)(y)+(−8)(2)+(−3)(6)+(−3)(−4b)

=−3x+15+−8y+−16+−18+12b

Combine Like Terms:

=−3x+15+−8y+−16+−18+12b

=(12b)+(−3x)+(−8y)+(15+−16+−18)

=12b+−3x+−8y+−19


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What is 5 to the power of 5 - 9 (200 divided by 4) - (10x90) divided by 5 - (4 to the power of 4) x 5 + 156 - 256
yanalaym [24]

5^5-9(200/4)-(10*90)/5-4^4(5)+156-256

= 3125-9( 200/4)-(10*90)/5-(4^4)(5)+156-256

= 3125-(9)(50)- (10*90)/5-(4^4)(5)+156-256

= 3125-450- (10*90)/5-(4^4)(5)+156-256

= 2675-(10*90)/5-(4^4)(5)+156-256

= 2675 - 900/5 - (4^4)(5)+156-256

= 2675 - 180 - (4^4)(5)+156-256

= 2495 - (4^4)(5)+156-256

= 2495 - 1280 + 156 -256

= 1215 + 156 - 256

= 1371 - 256

= 1115


I hope that's help , please if you have question(s) just let me know !


6 0
3 years ago
Consider the function f(x) = 5x + 7. Which statement MUST be true? A) f(1) ? f(3) = f(3) ? f(1) B) f(1) ? f(3) = f(5) ? f(3) C)
kondor19780726 [428]

Answer:

The answers are as follows for the functions.

f(1) = 12

f(3) = 22

f(5) = 32

Step-by-step explanation:

To find any of these, simply input the value in for x in the equation given.

f(1)

f(x) = 5x + 7

f(x) = 5(1) + 7

f(x) = 5 + 7

f(x) = 12

You can repeat this for each of them and it will allow you to use all of the numbers in the equations given.

6 0
3 years ago
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MrRa [10]
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3 years ago
Couldn't do this one help needed
Paladinen [302]

Answer:

shown below.

Step-by-step explanation:

v = 150 since 180 - 30

for w we need 2y and x. the base angles of the triangle are 30 and 50 therefore x = 100. 2y = 30 because corresponding angles. ergo, w = 50

x = 100

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5 0
2 years ago
What is 25% of 8<br> i really need the answer
Anarel [89]

Answer:

2

Step-by-step explanation:

8/4 = 2

3 0
3 years ago
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