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3 years ago

The sum of twice a number and 9 is 43

Mathematics

1 answer:

Irina-Kira [14]3 years ago

6 0

2x + 9 = 43 This is the equation.
2x = 34 Subtract 9 from both sides.
x = 17 Divide both sides by 2.

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If f(x) = 3x – 2 and g(x) = 2x + 1, find (f – g)(x)

expeople1 [14]

Answer:

x-3

Step-by-step explanation:

f(x) = 3x – 2

g(x) = 2x + 1

(f – g)(x) = 3x-2 - ( 2x+1)

Distribute the minus sign

= 3x-2 -2x -1

= x -3

5 0

3 years ago

What is the quotient (6x4+15x3+10x2+10x+4) ÷ (3x2 + 2)?

Elza [17]

We want to evaluate
$\frac{6x^{4}+15x^{3}+10x^{2}+10x+4}{3x^2+2}$

Perform long division
2x² + 5x + 2
----------------------------------------
3x²+2 | 6x⁴ + 15x³ + 10x² + 10x + 4
6x⁴ + 4x²
----------------------------------------
15x³ + 6x² + 10x + 4
15x³ + 10x
---------------------------------------
6x² + 4
6x² + 4

Answer: 2x² + 5x + 2

3 0

3 years ago

Someone answer 1-8 please! (Please do help!)<br> QUESTION: Find each quotient.

Zinaida [17]

Sorry, but I generally respond to only 1 or 2 problems when someone gives me a long list of homework. It would take you just a little longer to post one problem at a time.
75 5 -375
Let's look at #5: 75 / (-1/5) is the same as -------- = 75 * ------ = --------- -1 -1 1
---
5

and this is equivalent to -375 (answer to #5)

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3 years ago

Please help!!!!! 10 points!!

IrinaK [193]

Answer:

Both calculated the slope as 1/3

Step-by-step explanation:

Avis:

Rise = 4

Run = 12

Rise goes over the run: 4/12

4/12 simplifies into 1/3

Alec:

Rise= 2

Run= 6

Rise goes over the run: 2/6

2/6 simplifies into 1/3

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