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lyudmila [28]
3 years ago
8

It took a sports store 9 weeks to sell 90 soccer balls. How many are sold per week?

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

it would be 10 soccer balls

Step-by-step explanation:

10 every week if it was constant (because they could've sold more one week then less the next) but the genuine answer is 10 soccer balls :)

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4(a + b) - x²(a + b)​
Salsk061 [2.6K]

=(4-x^2)(a+b)

=(2^2-x^2)(a+b)

=(x+2)(x-2)(a+b)

I think it hopefull to you

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3 years ago
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Angie divides the polynomial function f(x)=x3+3x2−7x−21 by (x + 3). What can she conclude from the fact that the remainder is eq
iren [92.7K]

Answer:

See below

Step-by-step explanation:

<u>Given function</u>

  • f(x)=x³ + 3x²- 7x - 21

<u>We can find its factors:</u>

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We can conclude that the given polynomial function is fully divisible by (x + 3) and the quotient is (x² - 7)

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3 years ago
Kay left her computer running for 2~ days. How many hours did she leave her computer running for?
Stells [14]

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3 0
3 years ago
Find x<br><br> May I please receive help?
NikAS [45]

Answer:

x = 63°

Step-by-step explanation:

See the attachment

The measure of the angles in a triangle = 180 .  If the sides of a triangle are congruent, then the base angles are equal.  So in the triangle with the 72°, you have another angles = 72°.  Looking at the same triangle, 72° + 72° + part of the right angle = 180°. Do the math!  72° + 72° = 140°; 180° -144° = 36° (this is the measure of the piece of the right angle that is in the triangle with the 72° angle..   So the other part of the 90°(right angle) = 90° - 36° = 54°.

Now to solve for x:  You know that if the sides are congruent in a triangle, then the base angles are equal. Thus this triangle angles are x, x, and 54°.

You know that a triangle = 180°, so x + x + 54° = 180°; 2x +54° = 180°;           2x = 126°; x = 63°

Download docx
6 0
3 years ago
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What is the t- critical value for the confidence levek of c=92 and 19 degrees of freedom
Nonamiya [84]

Answer:

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Step-by-step explanation:

On TI-84

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invT(0.04,19)

8 0
4 years ago
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