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noname [10]
3 years ago
8

Convert the expression 10-(-30) to an addition expression. HELPPP MEEE PLSSSSSSSSS

Mathematics
1 answer:
jekas [21]3 years ago
8 0

Answer:

10 + 30

Step-by-step explanation:

10-1(-30)

10+1(30)

10+30

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Elsa uses exactly 60 cubes of ice to build a rectangular ice prism. Each cube has side lengths of 1 unit. Enter the dimensions o
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Answer:

2, 5, 6

Step-by-step explanation:

The volume of a rectangular prism is given by V=l\cdot w\cdot h, where all variables to the right are dimensions of the prism.

Therefore, we're looking for three numbers that multiply to be 60.

Since the question stipulates that no side length may be 10, we have:

2\cdot 5\cdot 6=60

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3 years ago
What is the longest side of a right angled triangle called?
Anarel [89]

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The hypotenuse

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Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
mart [117]

Answer:

The area is 11317.51

Step-by-step explanation:

The sum of 2 sides must be less than the third side (largest side) for a triangle to be formed.

b+c<a

133+174 < 240

A triangle can be formed

To use Herons formula for the area

We find S = 1/2( a+b+c)

                 = 1/2(240+133+174)

                 =  1/2 (547)

                     = 273.5


Area = sqrt( S (S-a) (S-b)(S-c))

           sqrt((273.5 ) (273.5 -240) (273.5-133) (273.5-174))

           sqrt((273.5)(33.5) (140.5) (99.5))

            sqrt(128085964.4)

           11317.50699

The area is 11317.51

5 0
3 years ago
PLEASE HELP WITH BOTH
OLEGan [10]

Answer:

x&y just cancel out for 7

x and y should both be 3

Step-by-step explanation:

its the best choice

4 0
3 years ago
Samantha deposit 300 in an account that earns an annual interest rate of 2.5 after nine months she computes the simple interest.
antiseptic1488 [7]

Answer:

She is doing a mistake of calculating interest after 9 months in place of after 12 months.

Step-by-step explanation:

Samantha deposit $300 in an account that earns an annual interest rate of 2.5%.

Now, Samantha after nine months of deposit computes the simple interest.

She is doing a mistake of calculating interest after 9 months in place of after 12 months.

The calculation of interest should be on a yearly basis (i.e. 12 months) as the interest rate is 2.5% per year. (Answer)

4 0
3 years ago
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