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3 years ago

I will give you Brainiest if you are right.

Mathematics

2 answers:

mixer [17]3 years ago

6 0

Answer:

D 2^2 x 5 x 7

Step-by-step explanation:

140 -> 7 and 20

7 is prime

20 -> 5 and 4

5 is prime

4 -> 2 and 2

2 is prime

lara [203]3 years ago

4 0

Answer:

Its c i just did the math

Step-by-step explanation:

You might be interested in

How much work is done in lifting a 1.4-kg book off the floor to put it on a desk that is 0.7 m high?

nalin [4]

Answer:

Step-by-step explanation:

Work is said to be done when a force applied to an object cause the body to move in a specified direction.

Work-done = Force * Distance

Since Force = mass * acceleration due to gravity

Work-done = mass * acceleration due to gravity * distance

Given mass = 1.4kg, distance = 0.7m and g = 9.8m/s²

Workdone in lifting the book off the floor = 1.4*0.7*9.8

Workdone = 9.604Joules

- Similarly, work done in lifting a 21-lb weight book 6 ft off the ground is expressed using the same formula as above;

Given mass = 21-lb, g = 32ft/s² and distance = 6ft

Workdone = 21 * 32 * 6

Workdone = 4,032 lb-ft²/s²

Hence, work-done in lifting a 21-lb weight book 6 ft off the ground is 4,032 lb-ft²/s²

3 0

3 years ago

Simplify the following, leaving your answer with a positive exponent: <br> x^-12/ x^-7

storchak [24]

Answer:

$\frac{1}{x^{5} }$

Step-by-step explanation:

x^-12/ x^-7

= x^(-12-(-7))

= x^-5

= 1/x^5

3 0

3 years ago

At 7:00 p.m., there are 1,000 home-team fans and 700 away-team fans at a football game. After 7:00 p.m, 15 home team fans arrive

OleMash [197]

Answer:

Therefore the ratio of home-team fan to away team fan at 8:00 p.m is

=109:67

Step-by-step explanation:

Initially , total home team fans =1000

and away team fans = 700.

7:00 pm to 8:00 pm = 1 hour = 60 minutes

Given that

Every 10 minutes the number of arrival home team fans is 15.

Then in 1 minutes the number of arrival home team fans is $\frac{15}{10}$

and in 60 minutes the number of arrival home team fans is $\frac{15 \times 60}{10}$

=90

Therefore total home team fans = (90+1000)=1090

Given that

Every 10 minutes 5 fans leave of away team leave.

then in 1 minutes $\frac{5}{10}$ fans leave of away team leave.

and In 60 minutes $\frac{5\times 60}{10}$ =30 fans leave of away team leave.

Since 30 away team fans leave.

Total away team fans = (700-30)=670

Therefore the ratio of home-team fan to away team fan at 8:00 p.m is

=1090:670

=109:67

4 0

3 years ago

HELP I WILL GIVE 85 points if u help

nata0808 [166]

Answer:

A. After two minutes, a bear can manage to have 120 heartbeats.

B. The slope of blue line is 60/1.

C. The slope of red line is 12/1

D. The equation for blue line is y = 60/1x

E. The equation for red line is y = 12/1x

7 0

3 years ago

1728829+5363792002×82873992892/12=?

son4ous [18]

Answer:

Simplify the expression.

Exact Form:

111129715061983798933/3

Decimal Form:

3.70432383⋅10^19

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers