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Talja [164]
3 years ago
10

Can someone plsss help with these 2 questions thank u!!!

Mathematics
1 answer:
bixtya [17]3 years ago
4 0

#2: formula: V = (3.14) x radius (1/2 diameter) and height over 3

Answer is A

#3: Answer is 314.159 which rounds up to 314.160

Step by Step: easy

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The diagram shows a circle inside a square 16cm Work out the area of the circle
vesna_86 [32]

i can help if you have the picture

5 0
3 years ago
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The question is on the attached image :)
olga_2 [115]
The mean can be found by adding the two numbers and dividing by 2

let the second number be y

(x + y)/2 = 1/2x + 1

solve for y

multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2

ANSWER: the second number is 2

6 0
3 years ago
Find the value of x. Round your answer to the nearest tenth.
Fantom [35]
Hello again! So we will be using the pythagorean theorem (leg^2+leg^2=hypotenuse^2) to solve for the bottom leg of the triangles. After we do that, we'll subtract the value of the legs from 31, and that'll be x.


Plug in 17 and z (or any variable that isn't x) into the leg variable and 19 into the hypotenuse variable, and from there we can solve.

17^2+z^2=19^2

Solve the exponents to get 289+z^2=361

Subtract 289 on each side to get z^2=72

Lastly, square root each side of the equation and your answer should be z= \sqrt{72} (To get more accurate answers, you shouldn't round until the end of the problem)


Nextly, we will need to subtract \sqrt{72} from 31. And since there are 2 triangles, you'll need to multiply \sqrt{72} by 2.

x=31- \sqrt{72} *2 \\ x=14.0

In short, x = 14.0
5 0
3 years ago
A sphere has a radius of 7.5 centimeters. To the nearest cubic centimeter, what is the volume of the sphere?
Naya [18.7K]

Volume of sphere = 1766.25 cm^3

Step-by-step explanation:

The radius of sphere = 7.5 cm

Volume of sphere = ?

The formula used is:

Volume= \frac{4}{3}\pi r^3

Putting values:

Volume= \frac{4}{3}\pi r^3\\Volume=\frac{4}{3}*3.14* (7.5)^3\\Volume= 1766.25\,\,\,cm^3

So, Volume of sphere = 1766.25 cm^3

Keywords:  Volume of sphere

Learn more about  Volume of sphere at:

  • brainly.com/question/12497249
  • brainly.com/question/6443737
  • brainly.com/question/4054269

#learnwithBrainly

4 0
3 years ago
What is -3+5+6g=11-3g solve for g
vitfil [10]

Answer: g = 1

Step-by-step explanation:

-3 + 5 + 6g = 11 - 3g

First, we need to combine like terms

-3 + 5 = 2

2 + 6g = 11 - 3g

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2 + 9g = 11

Subtract 2 from each side

9g = 9

Divide each side by 1

g = 1

8 0
3 years ago
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