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3 years ago

Compare. Use <,>,or = A. 50%of 20_40% of 30 B. 75% of 12__30% of 20

1 answer:

4 0

For clarification, < is less than, > is greater than, and then there is =.

A. So you have to take the percent of each number first.

50% of 20 = 0.5 x 20 = 10

40% of 30 = 0.4 x 30 = 12

Then put in the appropriate sign.

10 < 12

B. 75% of 12 = 0.75 x 12 = 9

30% of 20 = 0.3 x 20 = 6

9 > 6

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3 years ago

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3 years ago

Is the function f(x) =(4)^x -2 an exponential function. If so, identify the base. If not, why not?

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3 years ago

What is the surface area of a cone that has a radius of 8 feet and a slant height of 12 feet? (Use 3.14 for π.)

kodGreya [7K]

Answer:

Surface area of cone is $502.4\ ft^2$

Step-by-step explanation:

Given:

radius of a cone (r) = 8 feet

slant height of cone (l) = 12 feet

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Total surface area of cone = Area of circle $+$ Area of curved surface

Now we know that,

Area of circle = $\pi r^2$

Area of curved surface = $\pi rl$

Hence Total surface area of cone = $\pi r^2+\pi rl=\pi r(r+l) = 3.14 \times 8 (8+12)=3.14\times8\times20= 502.4 \ ft^2$

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3 years ago

a quadrilateral has vertices A(11,-7), B(9,-4), C(11,-1), and D(13,4). Quadrilateral ABCD is a . If the vertix C(11,-1) were shi

Maurinko [17]

Answer:

A quadrilateral formed by the vertices A(11,-7), B(9,-4), C(11,-1), and D(13,4) forms a rhombus

If the vertex C(11,-1) were shifted to the point C'(11,1), quadrilateral ABC'D would be a kite

Step-by-step explanation:

A quadrilateral formed by the vertices A(11,-7), B(9,-4), C(11,-1), and D(13,4) forms a rhombus. A rhombus is a quadrilateral whose all sides have equal length means it has four equal sides.

If the vertex C(11,-1) were shifted to the point C'(11,1), quadrilateral ABC'D would be a kite because a kite has two pairs of equal sides. A kite is a quadrilateral whose four sides can be grouped into two pairs of equal-length sides which are adjacent to each other....

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3 years ago

Read 2 more answers

Compare. Use <,>,or = A. 50%of 20___40% of 30 B. 75% of 12____30% of 20

Compare. Use <,>,or = A. 50%of 20_40% of 30 B. 75% of 12__30% of 20