3 years ago

What is the domain of the function f(x) = x^2 + 5?

Mathematics

1 answer:

Sophie [7]3 years ago

4 0

The domain is R so the first one is correct.

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An insured's roof cost $4,000 when installed 5 years ago. It has been damaged by hail and must be replaced. The new roof will co

hoa [83]

Answer:

ACV=$4,500

Step-by-step explanation:

We have that the actual cash value (ACV) is defined as:

$ACV=\dfrac{R\times(E-C)}{E}$

Where:

$ACV =$ actual cash value

$R =$ replacement cost or purchase price of the item

$E =$ expected life of the item

$C =$ current life of the item

Then we have R=$6,000, C=5years, and to find the expected life of the item we can use the depreciating of the roof, then if the roof is depreciating $200 each year we just need to divide $4,000 by $200 to find the expected life of the roof:

$\dfrac{4,000}{200}=20$

Then the espected life of the roof is 20 years, with this result we have all the data, then:

$ACV=\dfrac{\$6,000\times (20-5)}{20}=\dfrac{\$6,000\times (15)}{20}=\dfrac{\$90,000}{20}=\$4,500$

Then the ACV is $4,500

5 0

4 years ago

Explain why ABC cannot be mapped onto EFG by a reflection of ABC over the -axis followed by a slide of 8 units to the left.

Kitty [74]

Answer:

It won't be the same shape and length and width I think

Step-by-step explanation:

7 0

3 years ago

Seventy-eight is 26% of what number?

tensa zangetsu [6.8K]

78 / 0.26 = 300 so the answer is 300

8 0

3 years ago

What’s 4 times 15 divided by 8 plus 20 minus 5 divided by 3

jonny [76]

The answer is 25.83333333

Hope this helps!

4 0

3 years ago

A pair of congruent angles are described as follows: The degree measure of one angle is three more than twice a number, and the

Fiesta28 [93]

Answer:

The measure of the angles in degree is 57.5 degrees

Step-by-step explanation:

If two angles are congruent, they are equal in value

Let the number be x

2x + 3 = 3x-54.5

Thus;

3x-2x = 54.5 + 3

x = 57.5

6 0

3 years ago