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2 years ago

Simplify the product of (3+√7)(3-√7) that you found in the previous step.

Mathematics

1 answer:

mezya [45]2 years ago

8 0

The answer is 2
Look at the picture attached for steps

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Find the radius. Round to the nearest tenth.

Arlecino [84]

Answer:

Step-by-step explanation:

V = 1/3 * pi * r^2 * h

r = ?

pi = 3.14

h = 17 cm

3*V = pi * r^2 h = r^2 Divide by pi

3*V/pi = r^2 h = r^2 Divide by h

3*V/(pi*h) =r^2 Take the square root of the left to get just r

sqrt(3*V/(pi*h)) = r Now solve the equation.

sqrt(3*538.25 /(3.14*17)) = r

sqrt(1614 / 53.38) =

r = sqrt(30.24)

r = 5.493

6 0

2 years ago

a person runs at a constant speed of 9.2 miles per hour for 6 minutes and 30 seconds. How far did they travel in yards.

ipn [44]

Given:

Speed $= \bold{9.2 \ \frac{miles}{hour}}$

$\therefore \\\\$

1-hour= 60 minutes

1-minutes=60 second

1-hour= 3600 second

Converting the given time into seconds:

Time= 6 minutes and 30 second

$=\bold{6\times 60 \ second + 30 \ second }\\\\=\bold{360\ second+30\ second}\\\\=\bold{390\ second}\\\\$

When 3600 seconds covers=9.2 miles

Then equation:

$=\bold{\frac{9.2}{3600}}\\\\$

390 seconds covers:

$=\bold{\frac{9.2}{3600}\times 390 \ miles} \\\\$

Let

$\bold{1 \ miles= 1760\ yard}\\\\$

Convert the traveling value into yards:

$=\bold{ \frac{9.2}{3600}\times 390\times 1760}\\\\=\bold{ \frac{9.2}{36}\times 39\times 176}\\\\=\bold{ \frac{9.2}{12}\times 13\times 176}\\\\=\bold{ \frac{9.2}{12}\times 2288}\\\\=\bold{ 9.2\times 190.66}\\\\=\bold{ 1754.072\ yards}\\\\$

Therefore, total traveling yards are"1754.072".

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7 0

2 years ago

Read 2 more answers

What is the answer of equation 9x(30+7)=(9x30)+(9x7)

RSB [31]

(9x30) =270 (9x7) =63

Distributive Property

5 0

3 years ago

Read 2 more answers

Solve: 1/5c =15 c=__ solve what c equals

grin007 [14]

Answer:

Step-by-step explanation:

a fifth of c is 15

75÷5=15

4 0

3 years ago

What is the length of hypothesis of 9 mi 12 mi

ohaa [14]

A*a + b*b = c*c
9*9 + 12*12 = c*c
81 + 144 = c*c
225 = c*c
✓225 = 15
c = 15
The hypotenuse is 15.

6 0

2 years ago

Read 2 more answers

Simplify the product of (3+￼√7)(3-√7) that you found in the previous step.

Simplify the product of (3+√7)(3-√7) that you found in the previous step.