2 years ago

Help me plz I need help

Mathematics

1 answer:

galina1969 [7]2 years ago

8 0

Number 4 is D and number 5 is A

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A sphere has a radius r=12 inches. What is it’s approximate volume

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What is the area of triangle DEF?

FrozenT [24]

Answer:

$A=2\sqrt{14}\ units^2$

Step-by-step explanation:

we know that

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$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

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s is the semi-perimeter of triangle

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3 0

3 years ago

Ryan has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin foes he have?

mafiozo [28]

0.5?maybe I just divided 1.50 by 3

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3 years ago

Read 2 more answers

Suppose you are driving to visit a friend in another state. you are driving 55 miles per hour. you must drive 440 miles total. i

Oliga [24]

Time=(distance)/(speed)
speed=55 mi/hr
Total distance=440 miles
Distance covered=275 miles
remaining distance=440-275=165 miles
Time taken to cover the remaining distance will be:
time=165/55=3 hours

Total time taken to travel=440/55=8 hours
if we are to use the equation given by:
55h+275=440
time taken will be found by solving for h, thus we shall have:
55h=440-275
55h=165
h=165/55
h=3 hours

Answer: 3 hours

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3 years ago