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2 years ago

What is the length of the line

Mathematics

2 answers:

Annette [7]2 years ago

4 0

Answer:

The answer to this question is number one a

marshall27 [118]2 years ago

3 0

Answer:

i think its 8

Step-by-step explanation:

Im not 100% sure, if im wrong, let me know.

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Increase 60kg by 12.5%

bazaltina [42]

Answer:

67.2

Step-by-step explanation:

12% of 60

60 · 12 = 720

720 / 100 = 7.20

60 + 7.2 = 67.2 kg

8 0

3 years ago

7. Is the Graph a Function? *

steposvetlana [31]

Answer:

I believe it is a function because there are 2 points passing through the x-axis

Step-by-step explanation:

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3 years ago

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You provide half of a class of elementary school students with 20 minutes of spelling instead of recess. The other half of the c

Olin [163]

Answer: What is the question theres not enough info

Step-by-step explanation:

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3 years ago

Solve for x. x - 7 = 25

andre [41]

Answer:

x = 32

Step-by-step explanation:

x - 7 = 25

To solve equations, you do the some thing to both sides to isolate x.

After adding 7 to both sides we have:

x = 32

6 0

3 years ago

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Find the length of the radius of the circle whose perimeter is xcm and the area is

Jobisdone [24]

$\bf \stackrel{\textit{perimeter}}{\textit{circumference}}\textit{ of a circle}\\\\ C = 2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=x \end{cases}\implies x = 2\pi r\implies \boxed{\cfrac{x}{2\pi }=r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=x \end{cases}\implies x = \pi \left( \boxed{\cfrac{x}{2\pi }} \right)^2\implies x = \pi \cdot \cfrac{x^2}{2^2\pi^2}$

$\bf x = \cfrac{x^2}{4\pi }\implies 4\pi x = x^2\implies \cfrac{4\pi x}{x}=x\implies \blacktriangleright 4\pi = x\blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since the radius is}}{r = \cfrac{x}{2\pi }}\implies r =\cfrac{4\pi }{2\pi }\implies \blacktriangleright r = 2\blacktriangleleft$

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4 years ago

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What is the length of the line ​

What is the length of the line