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3 years ago

Did I get this right?

Mathematics

2 answers:

nikitadnepr [17]3 years ago

6 0

Answer:

Yes

Step-by-step explanation:

lidiya [134]3 years ago

4 0

Answer:

Step-by-step explanation:

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A pattern for 1 uniform uses 12 yards of material. Boleslaw wants to know how many yards are needed for 8 uniforms. Chantal want

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Acellus. Solve for x. x = ?

Makovka662 [10]

Answer:

according to basic proportionality theorem

$\qquad\sf {:}\longrightarrow 25/35=x/63$

$\qquad\sf {:}\longrightarrow 5/7=x/63$

$\qquad\sf {:}\longrightarrow 7x=63×5=315$

$\qquad\sf {:}\longrightarrow x=315/7=45$

5 0

2 years ago

Kevin bicycles a total of 2,340 miles last year. On average, about how many miles did he bike each week? 195 45 44 46

svlad2 [7]

In order to find the average you have to add up all the data values and then find the sum of the data values.

$195 + 45 + 44 + 46 = 330\\\frac{330}{4} = 82.5\\\\$

So on average he ran about 82.5 miles.

7 0

2 years ago

Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

7 0

3 years ago

Please help on this one?

Sedaia [141]

The inverse is where the x and y values are flipped, so the left side would have 6 7 8 9 and the right side would have 9 10 11 12 for the inverse.

Therefore your answer is A.

4 0

3 years ago