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MatroZZZ [7]
3 years ago
7

Can the two integers both be negative? Explain

Mathematics
1 answer:
liberstina [14]3 years ago
5 0
If you are referencing a picture, there is none attached to this post. If you can repost with a picture I can try to help you!
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If side A = 11 units and side B = 20 units, what is the length of side C?
defon
I think it’s C because 20-11 is C xD
3 0
1 year ago
If DE is not parallel to BC, what is DE?
stiks02 [169]
They are corresponding angles
4 0
2 years ago
What is the absolute value of 2 and 1 therds
sleet_krkn [62]

Answer: 2 and 1 thirds is the answer

Step-by-step explanation:

This is the answer because the absolute value mean how much places the number is away from 0 so 2 1/3 is 2 1/3 away from zero.

7 0
3 years ago
A plumber charges of fee of $75 to make a house call. He also charges $50 per hour for labor.
Hoochie [10]

Answer:

For part 1- y=50x+75 For part 2- y=325

Step-by-step explanation:

the cost is increasing 50 for every hour

there is a flat rate of 75 to answer a house call

y=50x+75

y=50(5)+75

y=250+75

y=325

5 0
3 years ago
SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school are given below
kvasek [131]

Answer:

The value of test statistics is 25.

Step-by-step explanation:

We are given below the SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school;

380, 520, 480, 510, 560, 630, 670, 490, 500, 550, 400, 350, 440, 490, 620, 660, 700, 730, 740, 560

<em>Let </em>\sigma<em> = population standard of the reading and writing section SAT score of the students in this school</em>

So, Null Hypothesis, H_0 : \sigma \leq 100     {means that the reading and writing section SAT score of the students in this school is lesser than or equal to 100}

Alternate Hypothesis, H_A : \sigma<em> </em>> 100     {means that the reading and writing section SAT score of the students in this school is higher than 100}

The test statistics that would be used here is <u>One-sample Chi-square</u> test statistics;

                        T.S. =  \frac{(n-1)s^{2} }{\sigma^{2} }  ~ \chi^{2} __n_-_1

where, s^{2} = sample variance =  \frac{\sum (X-\bar X)^{2} }{n-1}  = 13135.8

            n = sample of 11th-grade students = 20

So, <u><em>the test statistics</em></u>  =  \frac{(20-1)\times 13135.8^{2} }{100^{2} }

                                     =  24.96 ≈ 25

Hence, the value of test statistics is 25.

5 0
3 years ago
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