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3 years ago

Simplify the following expression by combining like terms.

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

3 0

Answer:

2x² + 5x

Step-by-step explanation:

Given

3x² + 4x - x² + x ← collect like terms

= (3 - 1)x² + (4 + 1)x

= 2x² + 5x

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What is the solution to 3/4 a > -16 Hellp Plz

julia-pushkina [17]

Answer:

Step-by-step explanation:

a>−64/3

Hope this helps mark me as brainiest pls

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3 years ago

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Could the value of x in the triangle below be 4, 6, 9, or 10? brainliest

Eva8 [605]

Answer:

Step-by-step explanation:

I am not completely sure.

if x=4 then it would be 12

if x=6 then it would be 18

if x=9 then it would be 27

if x=10 then it would be 30

the side is shorter than 19 but definitely longer than 6. To me, it looks like a little more than double, more of triple and 6 times 3 is 18.

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3 years ago

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What is the x intercept for y=(2x(x-3))/(x-1). ?

Ainat [17]

Answer:

( 0,0) and (3,0)

Step-by-step explanation:

y=(2x(x-3))/(x-1)

Set y = 0

0 =(2x(x-3))/(x-1)

Multiply each side by x-1, which makes x not equal to 1

0 =(2x(x-3))

Using the zero product property

2x=0 x-3 =0

x=0 x= 3

The x intercepts are x=0 x= 3

( 0,0) and (3,0)

5 0

3 years ago

Problem 3 A bank charges a service fee of $7.50 per month for a checking account. A bank account has $85.00. If no money is depo

omeli [17]

Answer:

12 months

Step-by-step explanation:

85-7.50x

At 11 months, the charges will add up to $82.50, so you know what after 12 months the account will be in the negative. At 12 months, the charges will be at $90, which means the account will have a balance of -$5

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4 years ago

Find the answer given below

Anastasy [175]

Answer:

Surface area = 6l^2

Volume = l^3

If total surface area increased by 2, then the length increased by $\sqrt{2}$

Volume then is increased by ( $\sqrt{2}$ l)^3 = 2 $\sqrt{2}$ l^3

1 :2 $\sqrt{2}$

Which is not an option in the question so this question clearly has a problem.

First of all It's supposed to be "then" not "than," so I'm not sure who teaches math without even knowing this basic grammar.

Second of all, if the answer is 8:1 the question should be "If each sides of a cube is doubled" not "the lateral surface area." Come to think of it what even is lateral surface area of a cube if all sides of the cube is supposed to be same.

Or, if the answer is 2:1 then, it should be If height lateral surface area of a cube is doubled by doubling the height and without changing the length and width" But, then the the shape would no longer be a cube.

Who even wrote this garbage question what.

6 0

3 years ago