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3 years ago

8

5x680 in the Distributive property

1 answer:

AysviL [449]3 years ago

5 0

It is (5x600)+(5x80)=3400

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What is the value of 9(n+2)−5n for n=14?<br> 3<br> 9<br> 10<br> 19

Murrr4er [49]

If you want to know the value of a function, you need to substitute the variable (here n) for the value:

so in the function

9(n+2)−5n

we substitute n with 14:

<span>9(14+2)−5*14

first calculate the inside of the bracket:

</span>
<span>9*16−5*14

9 times 16 is 144

144-5*14

5*14 is 70, so we have

144-70=74

so the answer should actually be 74!

Perhaps you mistyped the questions? can you check it again, please?

</span>

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3 years ago

Find the measure of angle 1.

Vesna [10]

Answer:

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Step-by-step explanation:

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2 years ago

Over the weekend, I bought a dress for $23.96, a pair of

Inga [223]

Answer:

4.94

Step-by-step explanation:

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3 years ago

I need help please & thx

kicyunya [14]

13. y > 2

14. x - 13 < 9;; x < 22

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3 years ago

PLEASE HELP I HAVE 10 MINUTES LEFT

Lena [83]

Answer:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

Step-by-step explanation:

The cost equation is given as:

$C=0.04x^2-5x+800$

This is a quadratic equation in general form, which is:

$y=ax^2+bx+c$

Matching, we can say:

a = 0.04

b = -5

c = 800

The minimum occurs at $x=-\frac{b}{2a}$

and the minimum value would be to place that "x" value into the equation.

First, we find the minimum using values of a and b:

$x=-\frac{b}{2a}=-\frac{-5}{2(0.04)}=\frac{5}{0.08}=62.5$

Plugging this into original, we get:

$C=0.04x^2-5x+800\\C=0.04(62.5)^2-5(62.5)+800\\C=643.75$

Rounding off to nearest whole number, we can say:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

4 0

3 years ago