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drek231 [11]
4 years ago
13

I need help...........Please, i will give brainliest for best answer, thank you so much!!

Mathematics
2 answers:
liubo4ka [24]4 years ago
6 0

Answer:

132.5 cm²

Step-by-step explanation:

The cuboid has 6 surfaces, actually 3 pairs of equal surfaces. You add the areas of each of them:

top/bottom: 2.3*7.5 =  17.25 cm²

front/back: 5*7.5 = 37.5

left/right: 2.3*5 = 11.5

add them: 17.25 + 37.5 + 11.5 = 66.25 cm²

Now double that value to get all sides: 2*66.25 = 132.5 cm²

Never forget the unit (cm²)!

Harlamova29_29 [7]4 years ago
3 0

Answer:

You have to calculate 3 pairs of surface areas:

2 x 7.5 x 5 = 75

2 x 2.3 x 7.5 = 34.5

2 x 2.3 x 5 = 23   and that totals

132.5

Step-by-step explanation:

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Layla and Sam are both dog sitters. Layla charges $2 per day plus a sign-up fee of $3. Sam charges a flat rate of $3 per day. Th
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Answer:

Givens

  • Layla charges $2 per day, plus a sign-up fee of $3. Notice the sign-up fee represents a fixed value, that's gonna be the constant form of the function. And $2 is the ratio of change of the function, because it a cost per day.
  • Sam charges $3 per day, without extra fee. So, the ratio of change of this function is $3, and it doesn't have a constant term.

According to the given information, the linear function for Layla is:

f(x)=2x+3

Notice that the constant ratio of change is coefficient of the independent variable, that is, because that variable represents days, and each charges $2.

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g(x)=3x

As we said before, this expression doesn't have any constant term, because the charges are flate $3 per day, it's just that rate.

Now, to find the number of days needed to both Layla and Sam earn the same money, we just have to solve the equation f(x)=g(x)

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3 0
3 years ago
Read 2 more answers
R=5(CA−0.3) solve for c
Maurinko [17]
R = 5(CA - 0.3)

<span>Multiply everything in the parenthesis by 5.</span>

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Divide 5A on both sides.

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Hope this helps!

4 0
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Please help if you can. If possible please type how you got the answer so I can remember it next time I get a question like this
Gre4nikov [31]

Answer:

(2,3)

Step-by-step explanation:

I did this by using the equation that was given. y=x+1.

This mean that the starting point would be the coordinate (0,1) and the x is the slope, which means that from coordinate (0,1) I will go up one and one to the right until I intersected with coordinate (2,3).

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(3.6 x 10⁷) / (7.2 x 10⁷)
zhuklara [117]

Answer:

scientific notation:

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Step-by-step explanation:

plz give brainliest

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