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makvit [3.9K]
3 years ago
7

3y-2x-4x+5x+7 please help meeeeeeeeeeee

Mathematics
2 answers:
Cloud [144]3 years ago
6 0

Answer:

3y-2x-4x+5x+7

please help meeeeeeeeeeee

Goryan [66]3 years ago
5 0

3y-2x-4x+5x+7\\\\=3y-x+7

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Whats the length of the patio?
nikdorinn [45]

Answer:

Length = 20 feet; x = 14

Step-by-step explanation:

Parameter = width + length + width + length

64 feet = 12 feet × 2 + (x + 6) feet × 2

64 = 24 + (x + 6) × 2

64 - 24 = (x + 6) × 2

40 = (x + 6) × 2

40 ÷ 2 = x + 6

20 = x + 6

20 = length

20 - 6 = x

14 = x

8 0
3 years ago
2(x+3)^2=49<br> A. 1.95 and 7.95<br> B. -1.95 and -7.95<br> C.1.95 and -7.95<br> D.4 and -10
Deffense [45]

2(x + 3)2 = 49
A 1.95 and 7.95
4 0
3 years ago
Riley is building a garden box for his backyard. He wants the perimeter to be 32
babunello [35]
The length of the garden box would be 10ft if the width is 6ft.
7 0
4 years ago
Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
BaLLatris [955]
<h2>Answer with explanation:</h2>

Let p be the population proportion  of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Given : Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Set hypothesis to test :

H_0: p=0.39\\\\H_a :p\neq0.39

Sample size : n= 1055

Sample proportion : \hat{p}=\dfrac{466}{1055}=0.441706161137\approx0.44

Critical value for 95% confidence : z_{\alpha/2}=1.96

Confidence interval : \hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

0.44\pm (1.96)\sqrt{\dfrac{0.39(1-0.39)}{1055}}\\\\0.44\pm0.0299536805135\\\\0.44\pm0.03\\\\=(0.44-0.03, 0.44+0.03)\\\\=(0.41,\ 0.47)

Since , Confidence interval does not contain 0.39.

It means we reject the null hypothesis.

We conclude that 95​% confidence interval represents evidence that​ parents' attitudes toward the quality of education have changed.

8 0
3 years ago
Please answer correctly
Vedmedyk [2.9K]

Answer:

A

Step-by-step explanation:

Month on x-axis and Log(mice) on y

5 0
3 years ago
Read 2 more answers
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