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4 years ago

Please help its urgent! 30 points!

Mathematics

2 answers:

Savatey [412]4 years ago

5 0

Step-by-step explanation:

I think the answer is A.

galina1969 [7]4 years ago

4 0

The answer is actually C.

I took the test from k12 and got it right.

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The two triangles are similar. What is the value of x? Enter your answer in the box.

ra1l [238]

Just took the test and got the the correct answer *\(♡°▽°♡)/*

Look at the image down below!!

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3 years ago

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How do you find the formula of a half circle?

Alik [6]

Full circle
Circumference = 2*pi * r
Circumference = pi * d

Area = pi r * r = pi * r^2
Area = pi d^2 / 4

Half circle
Circumference = pi * r
Circumference = pi * r / 2

Area = pi r^2 / 2
Area = pi d^2/8

The answer depends on what you are looking for and what you are given. But those are the only common formulas I can think of at the moment.

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3 years ago

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A cylinder of manganese (length 4.00 cm, diameter = 1.00 cm) has a mass of 22.62 g. What is the density of manganese?

Gnom [1K]

Equation for density is mass/volume

Mass=22.62 g

Volume= 22/7 x 1/2^2 x 4

3.14 x 0.5 x 0.5 x 4

=3.14 cm3

Mass/ Volume

22.62/3.14

7.2 g/cm3 is the answer

5 0

3 years ago

WHST IS THE ANSWER TO 3/5 ÷ 7/8 =

uysha [10]

Answer: 24/35

Step-by-step explanation:

3/5 * 8/7

3*8/5*7

24/5*7 = 24/35

6 0

3 years ago

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Find the derivative of g(y)=(y-4)*(2y+y^2)

sasho [114]

Answer:

$g'(y)=3y^2-4y-8$

Step-by-step explanation:

start by foiling out the given function

$g(y)=(y-4)(2y+y^2)\\=2y^2+y^3-8y-4y^2\\=y^3-2y^2-8y$

next, use the power rule to find the derivative

power rule: To use the power rule, multiply the variable's exponent n, by its coefficient a, then subtract 1 from the exponent. If there's no coefficient (the coefficient is 1), then the exponent will become the new coefficient.

$g'(y)=3y^2-4y-8$

5 0

2 years ago