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malfutka [58]
3 years ago
8

Please i need this asap!!

Mathematics
1 answer:
Marianna [84]3 years ago
7 0
There are four triangular faces, so we do 4*1/2*8*8

There are four rectangular faces that have the dimension 8*13, so we do 4*8*13

There is one square face that has the dimension 8*8

So we do 8*8+4*1/2*8*8+4*8*13

Which is 608
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What is the value of a in the equation 5a - 10b = 45, when b = 3?
olga nikolaevna [1]
Answer:

<span>a=15</span>

Explanation:

<span>5a−10b=45</span> , when <span>b=3</span>

Substitute the value of b into the equation.

<span>5a−10<span>(3)</span>=45</span>

Solve for a.

<span>5a−10<span>(3)</span>=45</span>

<span>5a−30=45</span>

<span>5a=75</span>

<span>a=<span>15</span></span>

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4 0
3 years ago
Read 2 more answers
Will mark as Brainliest...
tatiyna

Answer:

280 ft squared

Step-by-step explanation:

To find the area of the nonshaded portion, we can find the area of the entire floor and then subtract the shaded area.

The total area is that of a rectangle: 30 * 15 = 450 ft squared.

Now, the shaded region is made up of a rectangle and a triangle.

- The rectangle has length 8 and width 10, so its area is 10 * 8 = 80 ft squared.

- The triangle has base 12 and height 15, so using the area of a triangle formula: A=(bh)/2 (where b is the base and h is the height) = (12 * 15)/2 = 180/2 = 90 ft squared.

- The total shaded region is: 80 + 90 = 170 ft squared

Subtract 110 from 450: 450 - 170 = 280 ft squared.

Thus, the answer is 280 ft squared.

Hope this helps!

8 0
3 years ago
Read 2 more answers
During a huge snowstorm in the White Mountains last year, it snowed 400 centimeters in one week. How much did it snow in meters?
WINSTONCH [101]

Answer:

Step-by-step explanation:

1 meter = 100 cm/ 100cm = 1 meter

400cm = 4m

Ans 4 meters

4 0
3 years ago
Please can you help me??
yulyashka [42]

Answer:

Step-by-step explanation:

you put the -9 above where it says the -9 and same to the -3

or to solve the equation:

       Divide both sides of the equation by the same term

−9=−3−9−3=−3−3

        Divide the numbers

−9−3=−3−3

3=−3−3

Cancel terms that are in both the numerator and denominator

Move the variable to the left           =3x=3

Solution  =3

8 0
3 years ago
The correlation analysis assumes that the measurements have a bivariate normal distribution in the population. Select all of the
hoa [83]

Answer:

Bruh i got correlation hw that i posted on here too and nobody helped lol.

Step-by-step explanation:

8 0
3 years ago
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