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ZanzabumX [31]
2 years ago
9

Help please i suck at this

Mathematics
1 answer:
kap26 [50]2 years ago
5 0

Answer:

Mistake: -3-5=-2, -3-5=-8

Step-by-step explanation:

-3-(7x+5)+9x=-8+3x+10

-3-7x-5+9x=4x+2

-8+2x=4x+2

-8-2=4x-2x

-10=2x

-10/2=x

-5=x

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Answer:

(4,-1) (4,0) (4,1)

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If you graph this, it will be a straight vertical line.  No matter what y is, x will always be 4.

8 0
1 year ago
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Andru [333]

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3 years ago
Two numbers are in ratio s:t .if the first is a,find the second​
Whitepunk [10]

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Step-by-step explanation:

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2 years ago
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Dafna11 [192]

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6 0
2 years ago
Read 2 more answers
​claim: the mean pulse rate​ (in beats per​ minute) of adult males is equal to 6969 bpm. for a random sample of 125125 adult​ ma
RoseWind [281]

Answer:

t=0.21

Step-by-step explanation:

Given  \bar x=69.2, s=10.9, n=125and a population mean \mu=69.

#We state our hypothesis as:

H_o:\mu=69\\\\H_a:\mu\neq 69

The evidence available should validate either the null or alternative hypothesis.

#We calculate the test statistic as:

t=\frac{\bar x-\mu_}{s/\sqrt{n}}\\\\\\=\frac{69.2-69}{10.9/\sqrt{125}}\\\\\\=0.2051

\approx0.21

Hence, the test statistic is t=0.21

4 0
2 years ago
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