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3 years ago

Property of 10+5=5+10

Mathematics

2 answers:

pashok25 [27]3 years ago

4 0

Answer:

Commutative property

Step-by-step explanation:

The commutative property is when the order of the addends is changed, the sum stays the same.

Ex. 3+7 = 7+3

Both 3+7 and 7+3 = 10

miskamm [114]3 years ago

3 0

Answer:

Commutative Property of Addition

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Alinara [238K]

Answer:

the answer is B, (0, -2) :)

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3 years ago

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Svet_ta [14]

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78.4

Step-by-step explanation:

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3 years ago

Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

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3 years ago

There are approximately 17,620 people per square mile in New York City. If New York City is 468

Simora [160]

Answer:

8,246,160

Step-by-step explanation:

Population density

= people/area

Given

Population density of New York = 17,620 and

Area = 468 square mile

Therefore,

17620 = people /468

Cross multiply

People = 17620 x 468

= 8246160

There are 8,246,160 people in New York

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4 years ago

Are these Triangle congruent? How do you know?

tatiyna

Answer:

Yes sas

Step-by-step explanation:

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3 years ago