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I am Lyosha [343]
3 years ago
5

The cost of 5 scarves is 73.75. what is the unit price

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:

14.75 (add units too)

Step-by-step explanation:

  • Finding the unit price means finding the price of a single item: 5 scarves = 73.75.
  • To find one scarf, we need to divide both sides by 5: 1 scarf = 14.75

Hope this helps!

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jeyben [28]

Solve for d: by simplifying both sides of the equation, then isolating the variable.

C. d>0

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3 years ago
A professor records the difference between the marks scored by the students in the class test last week and those scored in the
dezoksy [38]

Answer: (10.82\ , 13.18)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\mu\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 35  , large sample (n>30)

Mean difference : \overline{x}=12

Standard deviation : \sigma=3

Significance level : \alpha=- 1-0.999=0.001

Critical value : z_{\alpha/2}=z_{0.0005}=3.4807567

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)

Hence, the  99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = (10.82\ , 13.18)

4 0
3 years ago
Matt has a block he uses one of the flat surfaces of the block to trace triangle what type of solid figure Matt block
timama [110]
I think it's a rectangle block because the surface is flat on all the sides.
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Find m∠I. Put the answer below.<br> m∠I =
pashok25 [27]

Answer:

The answer is 68°

Step-by-step explanation:

<h3><u>Given</u>;</h3>
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We know that

tan θ = Opp ÷ Adj

tan θ = 5 ÷ 2

tan θ = 2.5

tan θ = 68.2 ≈ 68

We know that tan 68 = 2.5

Thus, The m∠I is 68°

<u>-TheUnknownScientist 72</u>

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madam [21]
Astronomers deal with objects in space, so it's most likely they would use geometry to determine how far they are, how big they are, etc.

Have a nice day! :)
3 0
3 years ago
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