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erma4kov [3.2K]
3 years ago
8

A department store buys 300 shirts at a cost of ​$1 comma 800 and sells them at a selling price of ​$10 each. Find the percent m

arkup.
Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

What are the options?

Step-by-step explanation:

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This is math, help me with it plz
dangina [55]
Answer: X=136 degrees
Explanation: A triangle has a total of 180 degrees measuring all 3 angles. 180-90-46 gives me 44 left, then subtract 44 from 180 and that gives you 136 degrees.
3 0
2 years ago
We measure the diameters for a random sample of 25 oak trees in a neighbourhood. Diameters of oak trees in the neighbourhood fol
jarptica [38.1K]

Answer:

The required confidence inteval = 94.9%.

Step-by-step explanation:

Confidence interval: Mean ± Margin of error

Given: A confidence interval for the true mean diameter of all oak trees in the neighbourhood is calculated to be (36.191, 42.969).

i.e.  Mean + Margin of error = 42.969               (i)

Mean - Margin of error = 36.191                    (ii)

Adding (i) and (ii), we get

2Mean =79.16\\\\\Rightarrow\ Mean= 39.58

Margin of error = 42.969-39.58             [from (i)]

= 3.389

Margin of error = t^* \dfrac{\sigma}{\sqrt{n}}

here n= 25 , \ \sigma=8.25

i.e.

3.389=t^*\dfrac{8.25}{5}\\\\\Rightarrow\ t^* = \dfrac{3.389}{1.65}\\\\\Rightarrow\ t^* =2.0539 \

Using  excel function 1-TDIST.2T(2.054,24)

The required confidence inteval = 94.9%.

7 0
2 years ago
What is the area of the yellow region?
spayn [35]

Answer:

195 sq cm

Step-by-step explanation:

15 x 15 = 225

----------------------

3(8) + 2(3) = 30

----------------------

225 - 30 = 195 sq cm

6 0
3 years ago
Read 2 more answers
What is this answer?????
aleksklad [387]
50+x  \leq  50

Subtract 50  from both sides:

50+x-50  \leq  50 - 50

x  \leq 0

hope this helps!
5 0
3 years ago
How many verticies does a triangular prims have​
Lunna [17]

Answer:

6 vertices for triangular prisms.

4 0
3 years ago
Read 2 more answers
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