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vodka [1.7K]
3 years ago
9

PLEASE HELP!!!!!!!!!!!

Mathematics
1 answer:
svlad2 [7]3 years ago
6 0

Answer:

6in²

Step-by-step explanation:

the problem says the two triangular prisms are congruent.

the first triangle's volume is 90in³ and the height of the second triangular prism is 15. we use the formula fro the volume of the shape:

V=B * h

we substitute the values we know:

90in³=B*15

90/15 = B

6in²= B

So the area of the base is 6in²

Hope this helps :)

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Here is a circle.
Stolb23 [73]
Radius is half d so r us 4.5
Formula is 2x pi x r
So 28.3 to 3 s.f.
8 0
3 years ago
If the map is 3 quarter inches represents one half mile, what is the unit rate inches per mile?
blondinia [14]

Answer:

Thus, 3/2 in, or 1.5 in, represents 1 mile.

Step-by-step explanation:

"3 quarter inches to the half mile" can be expressed as "3/4 inch to 1/2 mile."

Write and solve an equation of ratios to obtain the unit rate in inches/mi:

3/4 in          x

---------- = ---------

1/2 mi         1 mi

Cross multiplying, we get 3/4 in-mi = (1/2) mi*x.

Solve this for x by mult. both sides by 2:

6/4 in-mi = x mi

and then dividing both sides by mi:

(6/4) in-mi

--------------- = 3/2 in

       mi

Thus, 3/2 in, or 1.5 in, represents 1 mile.

6 0
2 years ago
What is the answer to 7 (10-3x) = 5(10-4x
astra-53 [7]

Answer: 70-27x = 50-20x

Step-by-step explanation: First you do 7 x 10 which equals 70 then 7 x -3x equals -27x. Next you do 5 x 10 which is 50 next you do 5 x -4x equals -20x. So your answer is 70-27x = 50-20x

3 0
3 years ago
PLEASEEEE ANSWERRRR!!!!!!<br> Find the area of the shape shown below.
astra-53 [7]

Step-by-step explanation:

This is the answer. Hope it helps.

8 0
3 years ago
Read 2 more answers
Gina measured the amount of water her friends drink each day in gallons. The line plot shows the measurements.
vova2212 [387]

Line plots are used to represent data using lines and dots

The difference between the greatest amount of water and the least is 1/2

From the line plot (see attachment), we have the following parameters:

Least = 8\frac 28

Greatest = 8\frac 68

<h3>Calculating the difference</h3>

The difference (d) is then calculated as:

d =Greatest -Least

So, we have:

d =8\frac 68 -8\frac 28

Subtract the common terms (8)

d =\frac 68 -\frac 28

Take LCM

d =\frac {6-2}8

d =\frac {4}8

Reduce the fraction

d =\frac {1}2

Hence, the difference between the greatest amount of water and the least is 1/2

Read more about line plots at:

brainly.com/question/3521995

7 0
2 years ago
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