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3 years ago

(2.5 • 10^4) - (1.5 • 10^3) Evaluate please, can you show the steps

1 answer:

8 0

According to PEMDAS, you would look in the parenthesis first. In the first set of parenthesis we have an exponent. 10x10x10x10 is 10,000. Then we multiply this by 2.5. We now have 25,000. We put this to the side..

Next, we do the same thing on the other side -- 10x10x10 is 1,000 and then you multiply that answer by 1.5 and we have 1,500. Now we can subtract. 25,000 - 1500 = 23,500 :)

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Find the radius of a sphere with a volume of 972π cubic millimeters.

sesenic [268]

Answer:

The radius is 9 mm

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3 where r is the radius

972 pi = 4/3 pi r^3

Divide each side by pi

972 = 4/3 r^3

Multiply each side by 3/4 to isolate r^3

3/4 * 972 = 4/3 * 3/4 r^3

729 = r^3

Take the cube root of each side

(729) ^ (1/3) = (r^3) ^ (1/3)

9 = r

The radius is 9 mm

8 0

3 years ago

Read 2 more answers

Write an equation in slope-intercept form (0,2) (7,-1)

maksim [4K]

Answer:

y=-3/7x+2

Step-by-step explanation:

first formula (Slope): y2-y1/x2-x1

-1-2/7-0= -3/7

second formula (point slope): y-y1=m(x-x1)

y-2=-3/7(x-0)

(distribute the -3/7)

y-2=-3/7x-0

(add 2 to both sides)

y=-3/7x+2

6 0

3 years ago

Micheala drives 825 miles to Cali the trip takes her 17 hours she uses 38 gallons of gas on the trip which costs her $125 find h

In-s [12.5K]

48.53 mph
21.71 MPG
$3.29 per gallon

8 0

3 years ago

Simplify: 10x - 3(2x + 5) a) 4x - 15 b) 4x - 5 -36x + 15 c) 7x - 7

Nikitich [7]

10x - 3(2x + 5)
= 10x - 6x - 15
= 4x - 15

answer
a) 4x - 15

4 0

3 years ago

Read 2 more answers

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by gi

GuDViN [60]

The time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds

Given the equation representing the height reached by a rocket as:

$y = -16x^2 + 157x + 104$

The rocket will hit the ground when y = 0. Substituting y = 0 into the expression to get x;

$0 = -16x^2 + 157x + 104\\16x^2 - 157x - 104 = 0\\$

On factorizing:

x = 10.43 seconds

Hence the time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds

Learn more here: brainly.com/question/14479223

6 0

3 years ago