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AURORKA [14]
2 years ago
5

YALL PLS HELP ME ASAP!!!!!! :(((

Mathematics
2 answers:
joja [24]2 years ago
5 0

Answer:

lol you didn't give the question

Murrr4er [49]2 years ago
4 0

I am verry bad at maths sorry...I can't do this.....

and I can't see the questions as well..

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The Amaco Middle School bookstore sells pencils costing a whole number of cents. Some seventh graders each bought a pencil, payi
vodka [1.7K]

Answer:

12

Step-by-step explanation:

4 0
2 years ago
A FEW MATH QUESTIONS ! PLEASE EXPLAIN ANSWERS ! (:
7nadin3 [17]

answers

1) 70

2) 3,840

3) 24

4) 72


<u>Explanation</u>

Q1

The surface area of a cone is given by;

S.A = 2Πrl + Πr²

Where r is the radius of the base and l is the lateral height.

Πr² = area of the base = 20 in²

2Πrl = Area of the lateral surface

         = 2.5 × 20

          = 50

Area of the cone = 50 + 20

                            = 70 in²

Q2

The sides of the Pythagorean triangle with legs of 12 and 16.

The 3rd side will be;

c = √(12² + 16²)

  = √400 = 20

Volume = 12 × 16 × 20

              = 3,840

Q3

The volume of a cone is given by;

volume = 1/3 Π r² h

This shows that the volume of a cone is a third the volume of the cylinder.

∴ Volume of the cylinder = 12 × 3

                                            = 24 ft³

Q4

The volume of any regular figure is;

Volume = base area × height

When the dimensions area usually 3. Let these dimensions be x, y and z.

∴ volume  = x × y × z = 9

  Doubling the dimensions;

Volume = 2x × 2y × 2z = 2 × 2 × 2 × 9

             = 8 × xyz = 8 × 9

             = 72 ft²



3 0
3 years ago
Read 2 more answers
What type of line is the graph of y = 7?<br><br> Vertical<br> Horizontal<br> Rising<br> Falling
Ksivusya [100]
The line y = 7 would just be a Horizontal line on 7
Basically, you go up 7 units then draw a straight horizontal line across
Hope this helps!
5 0
3 years ago
Read 2 more answers
a photo album contains small and large photographs. Each large photograph has side lengths that are twice the side lengths of ea
zysi [14]
Take the area of the small photograph and divide it by four, assuming it's a square, each side would then be 6 inches. The large photograph has double the side length of the small one, so 6 multiplied by 2 is 12. To find the area of the large (square) photograph, multiply 12 by 12 as two of the sides, and the area of the large photo is 144 square inches
4 0
2 years ago
Read 2 more answers
Solve y=x^2-5 for x​
Natasha_Volkova [10]

Answer:

x^2 - 5 = y

x^2= y + 5

x \:  =  \:  \sqrt{y + 5}

7 0
3 years ago
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