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3 years ago

7 (3 + 5) = + is what?

Mathematics

2 answers:

weqwewe [10]3 years ago

6 0

Answer: 21+35

Step-by-step explanation: This is distributive property, you distribute the 7 to each of the numbers, so 7*3+7*5=21+35

konstantin123 [22]3 years ago

3 0

Answer: 21+35

Step-by-step explanation: Use the distributive property in this situation in order to get rid of the parentheses. Multiply 7 by both numbers inside the parentheses (keeping the addition symbol) in order to get your solution.

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3 years ago

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3 years ago

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4 years ago

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(-8,-4)&(2,-9) fint the distance between each pair of points

Makovka662 [10]

Answer:

$5 \sqrt{5}$

Step-by-step explanation:

We want to find the distance between (-8,-4) and (2,-9).

We use the distance formula:

$d = \sqrt{ {(x_2-x_1)^2} +(y_2-y_1)^2 }$

We substitute the coordinates to get:

$d = \sqrt{ {(2- - 8)^2} +( - 9 - - 4)^2 }$

We simplify to obtain:

$d = \sqrt{ {(2 + 8)^2}+( - 9 + 4)^2 }$

Add the numbers within the parenthesis to get:

$d = \sqrt{ {(10)^2}+( -5)^2 }$

Find the squares of the numbers under the radical

$d = \sqrt{ {100}+25}$

$d = \sqrt{125} = 5 \sqrt{5}$

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4 years ago

7 (3 + 5) = __ + __ is what?

7 (3 + 5) = + is what?