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lys-0071 [83]
4 years ago
5

Explain how knowing 1+7 helps you find the sum for 7+1

Mathematics
2 answers:
Alex Ar [27]4 years ago
8 0
Knowing 1+7 helps you find the sum of 7+1 because 1+7 and 7+1 is communitive property of addition. Also because 1+7 is the same answer as 7+1. 
Ex:
      1+7=8 
        And
       7+1=8
its the same result.
Salsk061 [2.6K]4 years ago
3 0
They are exactly the same. When adding it doesn't matter what order the numbers are in.
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Chanelle deposits $7,500 into the bank. She does not withdraw or deposit money for 6 years. She earns 6% interest during that ti
lozanna [386]

Answer:

10,200 Dollars

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6%/100 = 0.06 per year.

Solving our equation:

A = 7500(1 + (0.06 × 6)) = 10200  

A = $10,200.00

8 0
3 years ago
Read 2 more answers
Please help me with this ACT Prep problem.
swat32

Answer:

Option C

Step-by-step explanation:

ΔABC and ΔDEF are similar triangles.

By the property of similar triangles, corresponding sides of the similar triangle are proportional.

\frac{AB}{DE}=\frac{BC}{EF}=\frac{AC}{DF}

\frac{6}{DE}=\frac{6}{3}=\frac{10}{5}

\frac{6}{DE}=\frac{6}{3}

DE = 3

Perimeter of ΔDEF = Sum of measures of the sides of the triangle

                                = DE + EF + DF

                                = 3 + 3 + 5

                                = 11

Therefore, Option C will be the correct option.

7 0
3 years ago
What happens to the volume of a sphere when its diameter is tripled?
spin [16.1K]
V = 4/3  pi r^3

r is directly proportional to the diameter

and v is proportional to r^3

so 

v is proportional to d^3

for d tripled 

v  is (3)^3 = 27 times original 


8 0
3 years ago
I will give you brainliest! A point lies in quadrant 2. If it is rotated 180 degrees counterclockwise, which quadrant will the p
Leviafan [203]

180 degree rotation negates both coordinates, and takes a point from quadrant 2 to quadrant 4.

Answer: 4

We can also rotate 180 degrees clockwise, or 540 degrees counterclockwise and end up in the same place.

Combining transformations, we can reflect in the x axis and then in the y axis, also negating both coordinates so equivalent to 180 degree rotation.

7 0
3 years ago
Solve a²b³-(ab)² if a=-2 and b=3​
Lunna [17]

Answer:

The answer is 72.

Step-by-step explanation:

You have to put in the values of a and b into the expressions :

{a}^{2}  {b}^{3} -  {(ab)}^{2}

let \: a \:  =  - 2 \\ let \: b = 3

{( - 2)}^{2} \times   {(3)}^{3}  -  {( - 2 \times 3)}^{2}

= 4 \times 27 -  { (- 6)}^{2}

= 108 - 36

= 72

8 0
4 years ago
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