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2 years ago

Help me please. I need it and thanks if u help

Mathematics

1 answer:

VMariaS [17]2 years ago

4 0

12. you need to set up an inequality
4.95x+49.95>9.95x
solve for x
4.95x+49.95>9.95x
49.95>5x
x<9.99
Ian has to keep the website for 9 months
13. I don't know the dimensions of a rectangle, so I can't help you with that

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What does the expression "three less than five" mean?

Vikki [24]

5 - 3
if you have 3 apples less then tim and tim has 5 apples, you got 2

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2 years ago

8-4(2 - 5x) - 3(2x - 3) = 9 + 14x<br><br><br> I need help

Hoochie [10]

Answer:

x = any real number

Step-by-step explanation:

Any real number makes this true

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2 years ago

The function C(x) = -2x2 + 38x + 40 models the sales, in hundreds of

finlep [7]

Question:

Rewrite the function to reveal when sales of compact discs and $0.

Answer:

The cost in 2010 is $0

Step-by-step explanation:

Given

$C(x) = -2x^2 + 38x + 40$

Required

Find x when $C(x) = 0$

This gives:

$C(x) = -2x^2 + 38x + 40$

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Expand

$-2x^2 + 40x -2x+ 40=0$

Factorize:

$-2x(x - 20) -2(x- 20)=0$

$(-2x - 2)(x- 20)=0$

Solve for x

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2 years ago

What is the probability that you would roll a “5” on a single dice if you rolled it five<br> times?

schepotkina [342]

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2 years ago

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Sveta_85 [38]

Let's make sure we organize everything.

qr
2q^2
-3qr
-r^2
-6q^2

Now combine like terms.
qr - 3qr = -2qr
2q^2 - 6q^2 = -4q^2
-r^2 is by itself.

So, your answer:

-4q^2-2qr-r^2

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3 years ago