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4 years ago

Solve | x | < 10

Mathematics

1 answer:

Neko [114]4 years ago

8 0

Answer:

Right answer is B) x>-10 and x<10

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There is two part question is on picture<br> correct:brainliest

prohojiy [21]

Answer:

the first one is independent

the second one is dependent

Step-by-step explanation:

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3 years ago

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You own a small storefront retail business and are interested in determining the average amount of money a typical customer spen

Inga [223]

Answer:

Step-by-step explanation:

Hello!

The Confidence intervals for the population mean to follow the structure "point estimation"±" margin of error"

You as the store owner took a sample to determine the average amount of money a typical customer spends on your shop.

n= 26 customers.

X[bar]= $77.506

S= $11.0714

Assuming the variable X: the amount of money spent by a typical customer has a normal distribution and that there is no information about the population standard deviation, the best statistic to use for this estimation is a Students-t:

[X[bar] ± $t_{n-1;1-\alpha /2}$ * $\frac{S}{\sqrt{n} }$ ]

$t_{n-1; 1-\alpha /2}= t_{25; 0.995}= 2.787$

The margin of error of the interval is:

d= $t_{n-1;1-\alpha /2}$ * $\frac{S}{\sqrt{n} }$

$d= 2.787 * \frac{11.0714}{\sqrt{26} }$

d= 6.051

I hope it helps!

4 0

4 years ago

0.091hm convert it's height in meter<br>(explanation)

yarga [219]

Answer:

9.1

Step-by-step explanation

1 hm = 100m

0.091 * 100 = 9.1

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3 years ago

The figure below is made of unit cubes

charle [14.2K]

Answer:

Ok cool can i see the figure?

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3 years ago

I need you to help me solve this

Svet_ta [14]

For the expression to be factor-able the Discriminant , has to be greater or equal to zero
ax^2 + cx + b = 0

c^2 - 4 ab >= 0

(-3)^2 - 4 * 1 * b >= 0

9 - 4b >= 0

9 >= 4b

b <= 9/4 (2.25)

Pick any value in that range for ex:

0 , 2, -3, -6

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3 years ago