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Colt1911 [192]
3 years ago
7

Plz help me plz plz plz its math

Mathematics
1 answer:
notka56 [123]3 years ago
3 0

Answer:

I hope this help you

Step-by-step explanation:

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3(x−1) + 7=11 what is x
MariettaO [177]

Answer:

3(x-1)+7=11

3x-3-7=11

3x-10=11

3x=11+10

x=21/3

x=7

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
6) The sum of nine and half a number is thirty-three.
qaws [65]

Answer:

Hey there!

9+x/2=33

x/2=24

x=48

The number is 48

Let me know if this helps :)

8 0
2 years ago
The question is in the photo. Please answer with the correct answer.
vlabodo [156]

Answer:

18ft

Step-by-step explanation:

just add all the sides. since it’s a rectangle, you there is 2 sides that’s 3ft long and that are 6ft long. so you would do 3+3+6+6

7 0
2 years ago
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The cost of a daily newspaper varies from city to city. however, the variation among prices remains steady with a standard devia
Tanya [424]

First, we establish our hypothesis:

<span>Null hypothesis H0: μ = $1.00  </span>

Alternative hypothesis Ha: μ ≠ $1.00

<span>Let’s say X  = the sample average cost of a daily newspaper = 0.96</span>

u = population mean cost = 1.00

S = sample standard deviation = 0.18

Calculating for z value:

z = (X – u) / S

z = (0.96 – 1) / 0.18

z = – 0.222

From the standard distribution table at this z value, p-value = 0.4129

Since alpha = 0.01, the decision therefore is:

<span>Do not reject the null hypothesis because the p-value is greater than 0.01. There is enough evidence to support the claim that the mean cost of newspapers is $1. </span>

6 0
3 years ago
Jillian is trying out for the cross country team. To make the team, she must run 3 1/2 miles in less than 40 mins. Will Jillian
aliina [53]

Answer:

Yes, Jillian will make it for the team, beacuse it's very easy to run 3.5 miles in 40 minutes. Actually, you can run 5 miles very easily in 40 minutes.

My gratitude attitude-THANKS!

5 0
2 years ago
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