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3 years ago

50 percent of blank is 30

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

7 0

60 hope it helps!!!!!!!!!

tensa zangetsu [6.8K]3 years ago

3 0

Answer:

50%of balnk is 30

the blank is 15 because

50x30/100 gives you what you don't have

so 50x30/100=15

The blank would be 15

Step-by-step explanation:

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Gnoma [55]

1 divided by 18 is .111111111

3 0

3 years ago

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Please help me with this question!!!!!

amm1812

Answer:

B. $H(x)=-.008(x-82)^{2}+83$

Step-by-step explanation:

Well lets graph the following equation first,

H(x) = -.011(x - 82)^2 + 75

Then lets graph all the other equations.

Look at the image below↓

So A.

The purple line does not go farther or higher,

so A. is incorrect

The black line goes higher and farther,

meaning it is correct.

The red line goes farther but not higher.

So it is incorrect

Again the blue line does not go farther of higher.

So its wrong.

Thus,

answer choice B. $H(x)=-.008(x-82)^{2}+83$ is correct.

Hope this helps :)

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3 years ago

Expand (2+x)^-3 ....

pentagon [3]

Answer:

1/(x^3 + 6x^2 + 12x + 8)

Step-by-step explanation:

The first thing we do is rationalize this expression. (2+x)^-3 is written as

1/(2+x)^3

Then from there we can foil out the denominator. It is easiest to foil (2+x)(2+x) first and then multiply that product by (2+x).

(2+x)(2+x) = 4 + 4x + x^2

(4+4x+x^2)(2+x) = 8+8x+2x^2+4x+4x^2+x^3.

Then we combine like terms and put them in order to get:

x^3 + 6x^2 + 12x + 8

And of course we can't forget that this was raised to the negative third power, so our answer is 1/(x^3 + 6x^2 + 12x + 8)

6 0

2 years ago

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Solve for y , what is 9x+3y=4 ??

lora16 [44]

To solve for y, isolate the variable to one side.
9x+3y=4
-9x -9x
~~~~~~~~
3y= -9x+4
~~~~~~~~
3y= -9x+4 (Divide both sides by 3)

y=-3x+4

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3 years ago

What’s the distance between the points (-7,-4) and (-5,-4)?

Radda [10]

Answer:

2 units

Step-by-step explanation:

Distance

$= \sqrt{(-4 - (-4))^2 + (-7 - (-5))^2}$

$= \sqrt{0^2 + (-2)^2}$

$= \sqrt{(-2)^2}$

$= 2$

3 0

3 years ago