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3 years ago

Can you please help Imao the first answer gets the brainiest

Mathematics

1 answer:

Eduardwww [97]3 years ago

7 0

Answer: 4 for the first one and 4.25

Explanation:

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Find the surface area of the cylinder using pie.

mote1985 [20]

I believe it’s 72 I hope it’s right

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3 years ago

HALP PLEASE

Sergeeva-Olga [200]

Answer:

A: -2

Step-by-step explanation:

Hopefully this helps!

5 0

3 years ago

To solve y and x, I am adding a picture

Viktor [21]

Answer:

$x =\sqrt 5$

$y = \sqrt{5$

Step-by-step explanation:

Given

The attached triangle

Required

Solve for x

Considering angle 45 degrees, we have:

$\cos(45) = \frac{y}{\sqrt{10}}$ --- cosine formula i.e. adj/hyp

Solve for y

$y = \sqrt{10} * \cos(45)$

In radical form, we have:

$y = \sqrt{10} * \frac{1}{\sqrt 2}$

$y = \sqrt{10/2}$

$y = \sqrt{5$

To solve for x, we make use of Pythagoras theorem

$x^2 + y^2 = (\sqrt{10})^2$

$x^2 + y^2 =10$

Substitute for y

$x^2 + (\sqrt 5)^2 =10$

$x^2 + 5 =10$

Collect like terms

$x^2 =10-5$

$x^2= 5$

Solve for x

$x =\sqrt 5$

4 0

3 years ago

Is this right

pychu [463]

Answer:

360 = x+123+ 90

x = 147

Step-by-step explanation:

The three angles form a circle which is 360 degrees

360 = x+123+ 90

Subtract 123 and 90 from each side

360 -123 - 90 = x

147 = x

6 0

3 years ago

Read 2 more answers

In this figure, mBDA=___ and mBCA=___.

san4es73 [151]

MBDA= ADB and mBCA= ACB

4 0

4 years ago

Read 2 more answers