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olya-2409 [2.1K]

3 years ago

7

Which of the following is an example of the additive identity? a +(-a) = 0 a+0=0 a+0= a

1 answer:

UNO [17]3 years ago

4 0

Answer:

a+0= a

Step-by-step explanation:

we know that

The <u>additive identity</u> property says that if you add a real number to zero or add zero to a real number, then you get the same real number back

so

Let

a -----> a real number

a+0=0+a=a

therefore

a+0= a

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A survey was taken of a random sampling of residents of New York City and Los Angeles to compare how many of them own a car. A 4

erma4kov [3.2K]

Answer:

The correct option is;

There is a greater percentage of LA residents who own a car than NYC residents who do

Step-by-step explanation:

The values are presented as follows;

LA residents who own a car = 3251

NYC residents who own a car = 1478

Total residents who own a car = 4729

LA residents who do not own a car = 869

NYC residents who do not own a car = 6182

Total residents who do not own a car = 7051

Total LA residents sampled = 4120

Total NYC residents sampled = 7660

Total residents of both cities sampled = 11780

Percentage of LA residents who own a car = (3251/4120)×100 = 78.9%

Percentage of NYC residents who own a car = (1478/7660)×100 = 19.3%

The total number of people in the poll who own a car = 4729

Therefore, the correct option is that there is a greater percentage of LA residents who own a car than NYC residents who do.

7 0

3 years ago

Read 2 more answers

An employee's gross pay for a period is $820. The employee takes one withholding for a state allowance of $19. There is also a s

kondor19780726 [428]

I think the answer is D good luck

4 0

3 years ago

What is the slope of Y=.2x-7

sveticcg [70]

What is the slope of Y= 2x-7

$\text { The slope of } y=2 x-7 \text { is } 2$

<u>Explanation</u>:

$\text { The given line is } y=2 x-7$

$\text { The given line is in the form of } y=m x+b$

$\text { That is } y=2 x+(-7)$

Where

m is slope of the equation

Slope: The slope of a line is also called as gradient of line it is denoted by a letter m.

$\text { b is the } y-\text {intercept.}$

$\text { Hence the value of slope is } m=2$

$y-\text { Intercept is } b=-7$

6 0

3 years ago

4 to the power of 5 what is this weight written without an exponent?

ZanzabumX [31]

It would be 4 x 4 x 4x 4 x 4.

4 0

4 years ago

Read 2 more answers

Finding Hypotenuse Lengths. Find the length of the hypotenuse in

ZanzabumX [31]

Answer:

6. $2\sqrt{2}$

7. $7\sqrt{2}$

8. $\sqrt{10}$

9. $8\sqrt{2}$

10. $3$

11. $2\sqrt{5}$

Step-by-step explanation:

for all of these problems i used the pythagorean theorem, which is $a^{2} + b^{2} = c^{2}$

6.

$2^{2} + 2^{2} = c^{2}$

$8=c^{2}$

$\sqrt{8} =\sqrt{c^{2} }$

$2\sqrt{2}$

7.

$7^{2} + 7^{2} = c^{2}$

$49+49=c^{2}$

$98=c^{2}$

$\sqrt{98} =\sqrt{c^{2} }$

$7\sqrt{2}$

8.

$(\sqrt{5})^{2} +(\sqrt{5})^{2} =c^{2}$

$5+5=c^{2}$

$\sqrt{10}$

9.

$8^{2} +8^{2} =c^{2}$

$64+64=c^{2}$

$128=c^{2}$

$\sqrt{128} =\sqrt{c^{2} }$

$8\sqrt{2}$

10.

$(\sqrt{3}) ^{2} + (\sqrt{3}) ^{2} = c^{2}$

$3+3=c^{2}$

$9=c^{2}$

$\sqrt{9} =\sqrt{c^{2} }$

$3$

11.

$(\sqrt{10}) ^{2} + (\sqrt{10}) ^{2} = c^{2}$

$10+10=c^{2}$

$20=c^{2}$

$\sqrt{20} =\sqrt{c^{2} }$

$2\sqrt{5}$

5 0

3 years ago