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3 years ago

Simplify each expression by combining like terms. 4a+8b Please explain if you can

Mathematics

1 answer:

Drupady [299]3 years ago

7 0

4(a+2b) you have to factor out 4 from the expression

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Factor the polynomial 3x4 - 2x2 + 15x2 - 10 by grouping

Hunter-Best [27]

Answer:

(x2 + 5)(3x2 - 2)

Step-by-step explanation:

x2(3x2 - 2) +5 (3x2 - 2)

=(x2 + 5)(3x2 - 2)

4 0

4 years ago

What is the value of b?<br><br><br><br> −7.5(x−3)=3.75

KengaRu [80]

I am assuming x is the same thing as b.
−7.5(x−3)=3.75
-7.5x+22.5=3.75
-7.5x=-18.75
x=2.5

3 0

3 years ago

Read 2 more answers

How do I do this? Please explain it. Thank you.

Westkost [7]

Answer:

slope = - $\frac{14}{3}$

Step-by-step explanation:

the slope of the secant line in the closed interval [a, b ] is

slope = $\frac{f(b)-f(a)}{b-a}$

here [a, b ] = [1, 4 ]

f(b) = f(4) = - $2^{4}$ + 5 = - 16 + 5 = - 11

f(a) = f(1) = - $2^{1}$ + 5 = - 2 + 5 = 3

slope = $\frac{-11-3}{4-1}$ = $\frac{-14}{3}$ = - $\frac{14}{3}$

8 0

3 years ago

To solve one-step equations, we do the inverse (opposite) of whatever operation is being performed on the variable, so we get th

olganol [36]

Answer:

$y = 2$

Step-by-step explanation:

Given

$5 + y = 7$

Required

Solve

From the analysis attached to the question, we can solve this equation by subtracting 5 from both sides:

$5 + y = 7$

$-5 + 5 + y = 7 - 5$

$0 + y = 2$

$y = 2$

3 0

3 years ago

Stephanie wants to buy her brother some UGA clothes before he starts school there. She has $55 to spend on him. The hats are $10

Anna35 [415]

Answer:

Part a: $10h + $15s ≤ $55

Part b: She can buy 3 shirts

Step-by-step explanation:

Part a: Write an equation to model the situation

Stephanie has $55 to spend. Assume that hats are h, and shirts are s.

She can buy h hats for $10 each, represented as $10h

She can s shirts for $15 each, represented as $15s

She cannot spend more than $55

So that means $10h + $15s ≤ $55

It has to be less than or equal to because she can spend less money or $55 on her brother.

Part b: if she buys 1 hat, how many shirts can she buy?

Lets use our equation from part a

$10h + $15s ≤ $55

replace for for h because she bought 1 hat

$10 + $15s ≤ $55

Solve:

$10 + $15s ≤ $55

$15s ≤ $45

s ≤ 3

She can buy 3 shirts

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0

3 years ago