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3 years ago

72.1 is what percent of 88?

Mathematics

2 answers:

9966 [12]3 years ago

5 0

Answer:

81.9%

Step-by-step explanation:

72.1/88=81.9%

Elodia [21]3 years ago

3 0

Answer:

81.9318182%.

Step-by-step explanation:

72.1/88 = 81.9318182%.

This is the step to correctly and completely solve this question.

Hope this helps!!!

Kyle.

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A spherical balloon has a circumference of 25 cm.

ArbitrLikvidat [17]

Answer:

See below ↓↓

Step-by-step explanation:

Finding the radius

C = 2πr
25 = 2 x 3.14 x r
r = 25 / 6.28
r = 3.98 cm ≅ 4 cm

Surface Area

4πr²
4 x 3.14 x 4 x 4
3.14 x 64
200.96
201 cm²

Volume

4/3πr³ = 4πr² x r/3
201 x 4/3
67 x 4
268 cm³

4 0

2 years ago

The sum of the measures of angle X and angle Y is 90. If the measure of angle X is 30 less than twice the measure of angle Y, wh

fgiga [73]

I hope this helps you

3 0

4 years ago

Read 2 more answers

Solve using the quadratic formula x2 - 6x - 40=0 Question options: x = 10 or x = -4 x = 4 or x = -10 x = -7 or x = 7 x = -4 - √7

Crazy boy [7]

Answer:

$x=-10$ or $x=4$

Step-by-step explanation:

$ax^2+bx+c=0$

$x^2-6x-40=0$

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-6\pm\sqrt{6^2-4(1)(-40)}}{2(1)}$

$x=\frac{-6\pm\sqrt{36+160}}{2}$

$x=\frac{-6\pm\sqrt{196}}{2}$

$x=\frac{-6\pm14}{2}$

$x=-3\pm7$

$x=-10$ or $x=4$

6 0

3 years ago

Read 2 more answers

The square of x² ,-3x +5 please just explain how to solve

natka813 [3]

Use mathway on Google. it will give you the answer.

8 0

3 years ago

In which quadrant is sin positive and tan positive?

stepan [7]

That would be Quadrant 1, which is the quadrant in the top right corner.

Sin corresponds to the y-value, so sin would be positive at Quadrants 1 and 2.

Tan, which is y/x (sin/cos), is positive at Quadrants 1 and 3.

So at quadrant 1 is where both sin and tan are positive.

7 0

3 years ago