3 years ago

Yo-yo yo answer for brainlest

Mathematics

2 answers:

san4es73 [151]3 years ago

5 0

B yea what she/he said b

vampirchik [111]3 years ago

4 0

Answer below (B) Hope it’s helpful

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Can anybody help me on this?

Eduardwww [97]

Answer: second option.

Step-by-step explanation:

You need to descompose the radicand 8 and the radicand 50 into their prime factors:

$8=2*2*2=2^2*2\\50=2*5*5=2*5^2$

Then you can rewrite the expression:

$\sqrt{8}+\sqrt{50}$

$=\sqrt{2^2*2}+\sqrt{2*5^2}$

Since:

$\sqrt{a^2}=a$

You can simplify the expression:

$=2\sqrt{2}+5\sqrt{2}$

As the indices and the radicands are the same, you can make the addition:

$=7\sqrt{2}$

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3 years ago

Instructions: Find the measure of the indicated angle to the<br> nearest degree

Andru [333]

Answer:

See below.

Step-by-step explanation:

We want to find the unknown angle and we know the sides opposite to it and the hypotenuse. Therefore, we can use sine.

Recall that sine is the ratio of the opposite to the hypotenuse:

$\sin(\theta)=opp/hyp$

Plug in the numbers. The opposite is 20 and the hypotenuse is 55.

$\sin(\theta)=20/55$

Solve for theta (use a calculator):

$\sin(\theta)=20/55\\\theta=\arcsin(4/11)\\\theta\approx21.23\approx21\textdegree$

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3 years ago

What is the surface area,in square centimeters,of the square pyramid

11111nata11111 [884]

Answer:

56 sq cm

Step-by-step explanation:

SA = Area of Base + 1/2·(Perimeter of Base)·(Slant height)

= 4² + 1/2(4x4)(5)

= 16 + 1/2(16)(5)

= 16 + 40

= 56

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3 years ago

Allison, Buck, Chantal, and Doug compete in a 40-yard dash.

Lena [83]

16 ways. 4 times 4 equals 16.

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3 years ago

Using the total cost for Ashley's phone plan in the previous question, Calculate the total cost if she talked for 500 minutes an

andreyandreev [35.5K]

What was the total cost

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3 years ago