All categories

3 years ago

Please solve for x. (-: Also please show me a step-by-step, thanks! uwu

Mathematics

1 answer:

Stells [14]3 years ago

5 0

Answer:

$x=27$

Step-by-step explanation:

we know that

$(3x+9)^o+90^o=180^o$ ----> by supplementary angles (form a linear pair)

Solve for x

Combine like terms

$(3x+99)^o=180^o$

subtract 99 both sides

$3x=180-99\\3x=81$

Divide by 3 both sides

$x=27$

You might be interested in

The midpoint of AB ‾ AB is M ( 3 , − 2 ) M(3,−2). If the coordinates of A A are ( 1 , − 3 ) (1,−3), what are the coordinates of

mina [271]

We can find out AM. We have to do 0M - 0A which will give (2, -5)
Now w can take 2* AM

7 0

3 years ago

Please Help!!! I will give Brainliest to the correct answer!!

Rudiy27

Answer:

A. NO

B. NO

C. YES

D. YES

E. NO

F. NO

Step-by-step explanation:

7 0

3 years ago

Which represents r in terms of A and S?

ladessa [460]

Answer:

$r=\frac{6\sqrt{10AS}}{S\sqrt{\pi }}$

Step-by-step explanation:

Given the formula;

$A=\frac{\pi r^2S}{360}$

We want to solve the given formula for r.

Multiply both sides by $\frac{360}{\pi S}$

$A\times \frac{360}{\pi S}=\frac{\pi r^2S}{360} \times \frac{360}{\pi S}$

$A\times \frac{360}{\pi S}=r^2$

Take square root of both sides

$r=\sqrt{\frac{360A}{\pi S}}$

$r=\frac{\sqrt{360A}}{\sqrt{\pi S}}$

$r=\frac{\sqrt{360A}}{\sqrt{\pi }\sqrt{S}}$

$r=\frac{\sqrt{360A}\times \sqrt{S}}{\sqrt{\pi }\sqrt{S} \times \sqrt{S}}$

$r=\frac{\sqrt{360AS}}{S\sqrt{\pi }}$

$r=\frac{6\sqrt{10AS}}{S\sqrt{\pi }}$

5 0

3 years ago

Does anyone know how to solve |4x+3|-9<5

elixir [45]

Answer in fraction form: -17/4 < x < 11/4

Answer in decimal form: -4.25 < x < 2.75

=======================================================

Work Shown:

|4x+3| - 9 < 5

|4x+3| < 5+9 .... adding 9 to both sides

|4x+3| < 14

-14 < 4x+3 < 14 .... see note at the bottom

-14-3 < 4x < 14-3 .... subtracting 3 from all sides

-17 < 4x < 11

-17/4 < x < 11/4 .... divide all sides by 4

-4.25 < x < 2.75

This says that x is between -4.25 and 2.75, but x is not equal to either endpoint.

Note: I used the rule that |x| < k becomes -k < x < k where k is a positive real number.

6 0

2 years ago

Solve for the value of x

elixir [45]

Answer:

x = -5

Step-by-step explanation:

These are alternate exterior angles and alternate exterior angles are equal

110 = x+115

Subtract 115 from each side

110-115 = x+115-155

x = -5

7 0

3 years ago

Read 2 more answers