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scoray [572]
3 years ago
6

Choose the inequality that describes the following problem.

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0

Answer:

x\geq 125

Step-by-step explanation:

  • So first we have to find out the total number of points possible
  • So he took 5 tests each with a max score of 100 points, so that's 500 points total
  • The final test will be 150 points, so his whole grade is out of 500+150= 650 points
  • He has already scored 460 of those 650 points
  • Now how much must he get in the least, on the last test in order to make 90%?
  • Now we need to find what 90% of 650 points is
  • so \frac{90}{100} *650=\frac{90*650}{100} =585points
  • Then we ask ourselves, how much must we add to 460, to get 585 points? 585-460= 125 points
  • So Mark needs to get either 125 points or more on the next test to make 90% or more
  • Now let's say the letter x means whatever grade number Mark gets on his next test
  • This number must not be less than 125, so it must be either equal to or greater than 125 points
  • So x\geq 125
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For a statistics class project, a college student randomly samples 75 men who exercise at a gym regularly and 68 women who exerc
pav-90 [236]

Answer:

Step-by-step explanation:

The record of the statistics and the summary statistics which are the missing files in the question are attached below.

From the given information:

The null hypothesis and the alternative hypothesis can be represented by :

\mathbf{H_o:} There is no difference between the average time  spend by men and women at gym each week

\mathbf{H_i:} The average time  spend by men is greater than the average time spend by women at the gym each week

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The p-value = 0.3253

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Therefore; it is obvious that the p-value is greater than the level of significance  i.e (0.3253 > 0.05)

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6 0
3 years ago
I need help ASAP plsss
Nutka1998 [239]

x would be 102° . hope it helps

4 0
3 years ago
What is m∠A ?<br><br><br><br><br><br> Enter your answer in the box.<br><br> °
slava [35]
The definition of the interior angles of a triangle states that interior angles of a triangle add up to 180º.

This means we can find the measure of <CED: 

<CED + <ECD + <CDE = 180º
<CED = 180º - <ECD - <CDE
<CED = 180º - 43º - 35º
<CED = 102º

By the definition of vertical angles states that a pair of vertical angles are congruent.

This means <CED = <AEB
If <CED = 102º 
Then <AEB = 102º

By definition of the interior angles of triangles:
<AEB + <EBA + <BAE = 180º

<AEB = 102º
<EBA = 18º

102º + 18º + <BAE(<A) = 180º

<BAE = 180º - 102º - 18º
<BAE = 60º

<BAE is another way to say <A

<span>m∠A  = 60º</span>




5 0
3 years ago
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