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Alex777 [14]
3 years ago
13

Solve this equation x-3=4

Mathematics
2 answers:
MAXImum [283]3 years ago
5 0

Answer:

x-3= 4

x= 4+3

Answer: x= 7

Mice21 [21]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

x-3=4

Adding 4on both sides

x-3+3=4+3

x=7

Hope it will help you :)

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the mean percentage of a population of people eating out at least once a week is 57% with a standard deviation of 3.5 %. assume
zhuklara [117]
Given:
Population proportion, \mu _{p} = 57% = 0.57
Population standard deviation, σ  = 3.5% = 0.035
Sample size, n = 40
Confidence level = 95%

The standard error is
SE_{p} =  \sqrt{ \frac{p(1-p)}{n} } = \sqrt{ \frac{0.57*0.43}{40} } =0.0783

The confidence interval is 
\hat{p} \pm z^{*}SE_{p}
where
\hat{p} = sample proportion
z* = 1.96 at the 95% confidence lvvel

The sample proportion lies in the interval
(0.57-1.96*0.0783, 0.57+1.96*0.0783) = (0.4165, 0.7235)

Answer: Between 0.417 and 72.4), or between (41% and 72%)

8 0
3 years ago
The temperature in frostville was at 50*F at midnight,and it dropped at a constant rate for the next 10 hours.
bazaltina [42]

After 10 hours the temperature is shown on the graph as 30 degrees.

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The temperature dropped 20 degrees in 10 hours.

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20 degrees / 10 hours = 2 degrees per hour.

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The answer is D. -2 degrees per hour.

5 0
3 years ago
Find the distance between M(-1,-10) and P(-12,-3) * Round to the nearest tenth.
DedPeter [7]

Answer:

13.0 units

Step-by-step explanation:

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3 years ago
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Leviafan [203]

Answer:

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Step-by-step explanation:

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3 years ago
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antoniya [11.8K]
Number 2 is the answer to you question
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2 years ago
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