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2 years ago

PLEASE HELP NO TROLLS

Mathematics

2 answers:

Tatiana [17]2 years ago

6 0

The measure of < is 114.

Alex73 [517]2 years ago

5 0

Answer: < = 114
I had this question before heeh

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The least-squares regression equation

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Answer:

✔ 0.4

✔ 0.4 centimeters less

✔ 9.2

1.16(5) + 3 = 8.8

9.2 - 8.8 = .4

ED2021

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2 years ago

What is (4x+3)(x-7)=90

Ivan

It would be 16 i say

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3 years ago

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Selena babysits on the weekends. The equation y = 12x represents the amount of money she earns. What is the constant of proporti

Allushta [10]

Answer:

Step-by-step explanation:

To find constant: y=k/x

the constant there is only 12

the answer is 12

y=12

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y=12

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3 years ago

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What is polynomial?

shtirl [24]

Answer:

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

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3 years ago

8. There are 10 balls in a bag numbered from 1 to 10. Three balls are selected at random without replacement.

PIT_PIT [208]

Answer:

a. 720

b. 0.3

Step-by-step explanation:

Three balls are selected at random without replacement.

First ball can be selected in 10 ways

Second ball can be selected in 9 ways

Third ball can be selected in 8 ways

Thus, there are 10×9×8 =720 different ways of selecting three balls.

There are three cases that satisfy this condition

first ball picked is 5, the others are not
first ball is not 5, second is 5, third is not
first and second ball is not five, third ball is 5

Each probabilities are:

$\frac{1}{10} * \frac{9}{9} *\frac{8}{8} =\frac{1}{10}$
$\frac{9}{10} *\frac{1}{9} *\frac{8}{8} =\frac{1}{10}$
$\frac{9}{10} *\frac{8}{9} *\frac{1}{8} =\frac{1}{10}$

Thus, one of the balls selected is the number 5 is then $\frac{1}{10} + \frac{1}{10} + \frac{1}{10} = \frac{3}{10}$

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3 years ago