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natulia [17]
3 years ago
11

I NEED HELP!!! PLEASE

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0
1- 28.27
2- 11.41
3- 130.22
4- 4.31
You might be interested in
An object travels 8 miles in 20 minutes at a constant speed. What is the
strojnjashka [21]

Answer: 24miles/hour

Step-by-step explanation: Speed is the change in distance of a body with respect to time.

Speed = Distance/tIme

Given parameters

Distance = 8miles

TIME = 20minutes

Convert minutes to hour

since 60minutes = 1hr

20 min = x

cross multiply

20 = 60x

x = 20/60

x = 1/3

Hence 20mins = 1/3 hr

Speed = 8miles/(1/3)hr

speed = 8 miles * 3/1 hr

speed = 24 miles/hr

6 0
3 years ago
Amber built a large rectangular garden that is 9 meters long and had an area of 72 square meters, what is the perimeter of amber
drek231 [11]
So we know that the length of the rectangle is 9 meters.

In order to find area of a rectangle, you multiply the length by the width.

To find the width, you divide the area by the side you do have , which is 9 meters.

72 divided by 9 is 8.

So the width 8 meters, and now to find the perimeter you must add all sides of the rectangle.

9+9+8+8 = 34.

The perimeter of the rectangular garden is 34 meters.
7 0
3 years ago
13 POOINNTSSS PLEASE HELP ON 6-10 AND 13 TIMED TYSM IF U ANSWER
Leona [35]

Answer:

The answer is 12.8.

Step-by-step explanation:

0.16 times 80 = 12.8

8 0
3 years ago
HELP PLEASE!!!!!!!!​
eimsori [14]

Answer:

8) B. 70

9)C. 6 1/4

10) D. 2,000

hope this helped

3 0
3 years ago
Based on the polynomial reminder theorem, what is the value of the function when x= -5
densk [106]

Answer:

-15

Step-by-step explanation:

Given is a polynomial in x

F (x)= x^4 + 12x^3 + 30x^2 - 12x + 70

We have to find the remainder when the above polynomial is divided by x+5

Remainder theorem says that f(x) gives remainder R when divided by polynomial x-a means f(a) = R

Applying the above theorem we can say that value of the function when x =-5

= Remainder when f is divided by x+5

= F(-5)

Substitute the value of -5 in place of x

= (-5)^4 + 12(-5)^3 + 30(-5)^2 - 12(-5) + 70

= 625-1500+750+60+70

= 5

Hence answer is 5

5 0
3 years ago
Read 2 more answers
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