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2 years ago

X-4=2(x+1) what’s X?

Mathematics

2 answers:

Sedbober [7]2 years ago

8 0

Answer:

x=-5

Step-by-step explanation:

Lets take 2(x+1) first

carry on the 2 to the parenthesis

2 . x & 2 x 1

=2x+1

next we put it back in the equation

x-4=2x+1

cancel out the common terms

for example when you bring the +1 to the other side it will become -1

now we will do -4(-1)

=-5

rewrite the equation:

x-5=2x

do the same with the x! :)

equation:2x-x

=x (or 1x)

so -5=x

thats your answer!

x=-5

-Sumin <3

Diano4ka-milaya [45]2 years ago

7 0

Answer:

X= -6

Step-by-step explanation:

x-4=2x+2

x-2x=2+4

X = -6

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Am I correct ??? I don’t really know

Setler [38]

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3 years ago

A square has an area of 16x^2 square inches. If the sides of the square were to increase by 2 units, what is the new area of the

kykrilka [37]

Answer:

16x² + 64x + 64

Step-by-step explanation:

Given

A = 16x²

Increasing the sides by 2, substitute x = x + 2 into A

A = 16(x + 2)² ← expand factor using FOIL

= 16(x² + 4x + 4 ) ← distribute

= 16x² + 64x + 64

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3 years ago

What is the equation of the line shown below?

Mariulka [41]

Answer:

Step-by-step explanation:0

The negative in front of the -(4/5), means you have to move four spaces back but move five up

hopes this helps~

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3 years ago

Find the parabola with equation y = ax2 + bx whose tangent line at (3, 12) has equation y = 10x − 18. y = incorrect: your answer

pishuonlain [190]

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3 0

3 years ago

Find z such that 97.5% of the standard normal curve lies to the left of z. (Enter a number. Round your answer to two decimal pla

fomenos

Answer:

z=1.96

Step-by-step explanation:

Using normal distribution table or technology, 97.5% corresponds to z=1.959964, generally denoted z=1.96, or 1.96 standard deviations above the mean.

(above value obtained from R)

6 0

3 years ago