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3 years ago

Can someone help me with this please ?

Mathematics

1 answer:

rusak2 [61]3 years ago

8 0

38 , because since its 90 degrees at exact, your subtract 90 from 52 and you would get 38 for your x value

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Describe how you solve problems involving scales. Include how you use fractions to get the answer.

Vaselesa [24]

Answer:

messi

Step-by-step explanation:

Ronaldo

cuál es mejor para vos

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3 years ago

What is the value of x? Enter your answer in the box. x =

deff fn [24]

Answer:

Step-by-step explanation:

The sum of degrees in a triangle is 180, so we have:

3x+100+x-4=180

add 4 on both sides

3x+100+x=184

subtract 100 on both sides

3x+x=84

Combine like terms

4x=84

84/4 = 21

(btw i'm actually 10 years old 0_0)

5 0

3 years ago

Read 2 more answers

Verify that quadrilateral BCDE is a rhombus with vertices B(-5, 1), C(0, 6), D(5, 1) and E (0, -4) by showing that all four side

garri49 [273]

Find the distance between each

between points (x1,y1) and (x2,y2)
D= $\sqrt{(x2-x1)^2+(y2-y1)^2}$

find and verify that
BC=CD=DE=EB

so
BC= $\sqrt{(0-(-5))^2+(6-1)^2}$ =5√2
CD= $\sqrt{(5-0)^2+(1-6)^2}$ =5√2
DE= $\sqrt{(-4-1)^2+(0-5)^2}$ =5√2
EB= $\sqrt{(-5-0)^2+(1-(-4))^2}$ =5√2

true

4 0

4 years ago

A= 4 πr^2 solve for R

sergij07 [2.7K]

Answer:

$r = \pm\sqrt{\frac{A}{4 \pi}}$

Step-by-step explanation:

Given:

The given equation is $A = 4 \pi r^{2}$

We need to solve the given equation for r.

Rewrite the equation as.

$4 \pi r^{2}=A$

Divide both side of the equation by 4π and simplify

$\frac{4 \pi r^{2}}{4 \pi}=\frac{A}{4 \pi}$

$r^{2}=\frac{A}{4 \pi}$

Take the square root both side of the equation.

$\sqrt{r^{2} } = \sqrt{\frac{A}{4 \pi}}$

$r = \pm\sqrt{\frac{A}{4 \pi}}$

Therefore, the solution for r is both positive or negative $r = \pm\sqrt{\frac{A}{4 \pi}}$

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3 years ago

a snowboard instructor has 4.2 liters of liquid wax for waxing snowboards. if she uses 1 milliliter for each snowboard, how many

Yuri [45]

There are 1000 milliliters a in 1 liter. It’s easy if you have a decimal like 4.2. The 2 adds up to 200 milliliters. 4 liters x 1000 milliliters equals 4000 milliliters. It then becomes 4200 milliliters when you add the .2 from 4.2. If she has I milliliter for each snowboard, the instructor can wax 4,200 snowboards.

5 0

3 years ago