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garri49 [273]
2 years ago
13

PLEASE PLEASE HELP Write a fact family for 2, −5, and −10.

Mathematics
1 answer:
NeX [460]2 years ago
8 0

Answer and explanation:

To find : Write a fact family for 2, −5, and −10 ?

Solution :

A fact family is a group of math facts using the same numbers.

In the case of multiplication and division, we bring number together to get the product or divisor.

For 2, −5, and −10

The fact family are,

2\times -5=-10

\frac{-10}{-5}=2

\frac{-10}{2}=-5

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A random sample of 12 recent college graduates reported an average starting salary of $54,000 with a standard deviation of $6,00
Marianna [84]

Answer: a.) $50188 to $57812

Step-by-step explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values in which we are confident the true mean is in.

The interval is calculated as

x ± z\frac{s}{\sqrt{n} }

a. For a 95% CI, z-value is 1.96.

Solving:

54,000 ± 1.96.\frac{6000}{\sqrt{12} }

54,000 ± 1.96\frac{6000}{3.464}

54,000 ± 1.96*1732.102

54,000 ± 3395

This means the interval is

50605 < μ < 57395

<u>With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or </u><u>from 50188 to 57812$.</u>

<u />

b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.

4 0
2 years ago
PLEASE HELPP MEE!!!!
Artemon [7]

does the answer help you.

5 0
2 years ago
The equation 6x - 5y = 14 is written in standard form. Which point lies on
dimaraw [331]
Answer= H (-1, -4)

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4 0
2 years ago
Anyone answering the coordinates subtraction can get there 100 points here.
Sholpan [36]

Answer:

c = -6

d = 2

Step-by-step explanation:

After reflection about the x-axis:

A --> A'

(x,y) --> (x,-y)

(2,3) --> (2,-3)

(4,3) --> (4,-3)

(2,6) --> (2,-6)

After translation:

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2+c = -4

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3 0
3 years ago
Read 2 more answers
Choose the true statement. -2 &lt; -3 -2 &gt; -3 -2 = -3Choose the true statement.
Marrrta [24]
-2 < -3 (I think so anyway)
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3 years ago
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