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Aneli [31]
3 years ago
9

HELP PLS i wanna do this bc my grade will go up

Mathematics
2 answers:
vodomira [7]3 years ago
5 0

Answer:

Hello! answer: 268

Step-by-step explanation:

When doing these you want to find each face separately then add them up so here are all the faces... 24 + 24 + 80 + 80 + 30 + 30 = 268 so 268 is our surface area! Hope this helps!

topjm [15]3 years ago
3 0

Answer:

268 cm²

Step-by-step explanation:

Surface area: The sum of all the areas of every side of the prism.

As a shortcut, you can find the three unique sides and multiply the number by 2 (because opposite sides of a rectangular prism are the same)

Find the surface area of:

8 by 10 side: 8 * 10 = 80

3 by 8 side: 3 * 8 = 24

3 by 10 side: 3 * 10 = 30

Add these measures together.

80 + 24 + 30 = 134

Multiply this number by 134.

134 * 2 = 268

Thus, the answer is 268 cm²

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Tomtit [17]

Answer: same. ( 6 degree )

Step-by-step explanation:

According to the question, An angle that measures 6° is drawn on a piece of paper. As you are looking at the angle through a×6 magnifying glass, which means it magnifies by a factor of 6 indeed. The length and the width of the shape may magnify by factor of 6, but the degree measure of the angle will remain the same.

Even if it is magnified by a factor of 100, the measure of the angle you see on the paper when you look through the magnifying glass will remain the same.

5 0
4 years ago
Researchers recorded that a certain bacteria population declined from 450,000 to 900 in 30 hours at this rate of decay how many
worty [1.4K]

Answer:

30,455

Step-by-step explanation:

Exponential decay

y = a(1 - b)^x

y = final amount

a = initial amount

b = rate of decay

x = time

We are looking for the rate of decay, b.

900 = 450000(1 - b)^30

1 = 500(1 - b)^30

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1 - b = 0.81289

b = 0.1871

The equation for our case is

y = 450000(1 - 0.1871)^x

We are looking for the amount in 13 hours, so x = 13.

y = 450000(1 - 0.1871)^13

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5 0
3 years ago
Steven jogs around a circular field with a diameter of 70 yd. Find the area of the field.
horrorfan [7]

Answer:

The area is 3710 square yards.

Hope this helps!

Mark me brainliest if I'm right.

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Find the equation of a line given the point and slope below. Arrange your answer in the form y=mx+b, where b is the
Svetradugi [14.3K]

Answer:

First, we put the values of the given point into the general equation, giving:

0 = m * -1 + b .......(1)

Now plug in the given value of m into equation (1), giving:

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Solving equation (2), we find that b = -2.

Now we can write the required equation as:

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6 0
3 years ago
It takes adrian 12 minutes to swim 4 laps . how many hours will it take to swim 50 laps ?
zvonat [6]

Answer:

150 minutes, or 2 hours and 30 minutes

Step-by-step explanation:

We know that it takes him 3 minutes per lap when you divide 12/4.


Hope this helps!


~CoCo

5 0
3 years ago
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