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scoray [572]
3 years ago
11

Draw a sketch to help you solve this problem. Express your answer in simplest form. Raquel cut a piece of ribbon 4/6 ft long and

another piece 5/6 ft long. How many feet of ribbon did Raquel have? can someone help me!!!
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
3 0
This is really simple. She had 4/6 ft plus 5/6 ft ribbon. This is equal to 1.5 ribbon.
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I need help fast geometry is impossible
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3 years ago
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A group of researchers wants to know whether men are more likely than women to contract a novel coronavirus. They surveyed two r
olasank [31]

Answer:

Test statistic Z= 0.13008 < 1.96 at 0.10 level of significance

null hypothesis is accepted

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Step-by-step explanation:

<em>Step(I)</em>:-

Given surveyed two random samples of 390 men and 360 women who were tested

first sample proportion

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second sample proportion

                  p_{2} = \frac{47}{52} = 0.9038

Step(ii):-

Null hypothesis : H₀ : There is no difference  proportion of positive tests among men is different from the proportion of positive tests among women

Alternative Hypothesis:-

There is difference between proportion of positive tests among men is different from the proportion of positive tests among women

 

Z = \frac{p_{1}- p_{2} }{\sqrt{PQ(\frac{1}{n_{1} }+\frac{1}{n_{2} }  } }

where

          P = \frac{n_{1}p_{1} +n_{2}  p_{2} }{n_{1}+n_{2}  }

         P =  0.920

Z= \frac{0.9230-0.9038}{\sqrt{0.920 X0.08(\frac{1}{390}+\frac{1}{52}  } )}

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7 0
3 years ago
Suppose that you can save $50 by buying your car in a different city. if the trip requires only $10 in gasoline, is the trip wor
netineya [11]
Yes the trip is worthwhile. If you save $50, but it takes you $10 in gas o get theready & $10 in gas to get back you still have $30 saved.
3 0
3 years ago
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Please help! !!!!!!50 POINTS!!!!!!! Question bellow!!
Sergeeva-Olga [200]
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<span>Area = πr²
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However, I don't see why they told you to have an exact answer for the area. You can't have an exact answer when you use 3.14 for pi.</span>
7 0
3 years ago
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