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andrey2020 [161]
3 years ago
8

Tim is saving up money to go to

Mathematics
2 answers:
GenaCL600 [577]3 years ago
3 0

Answer:

7 weeks

Step-by-step explanation:

130-4 = 126

126÷18=7

zheka24 [161]3 years ago
3 0

Answer:

7

Step-by-step explanation:

Since he has already saved up four dollars, we can subtract this amount from $130.

We are now left with $126, which we can divide by 18, the amount saved per week.

126/18 is equal to 7, so it will take him 7 weeks to buy a ticket.

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Lana71 [14]
Cuboid C is 4 and 4. Cuboid D is 2 and 4.
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2 years ago
Identify the ordered pair that represents the vector from a(-9,9) to b(7,3) and the magnitude of ab.
sveta [45]

Answer:

Answers below

Step-by-step explanation:

1. Order pair method

[(x2-x1) , (y2-y1)] = b-a = [(7--9) , (3-9)] = (16,-6)

2. Magnitude

|v| = \sqrt{16^2+-6^2}

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7 0
3 years ago
Read 2 more answers
A private and a public university are located in the same city. For the private university, 1038 alumni were surveyed and 647 sa
Snezhnost [94]

Answer:

The difference in the sample proportions is not statistically significant at 0.05 significance level.

Step-by-step explanation:

Significance level is missing, it is  α=0.05

Let p(public) be the proportion of alumni of the public university who attended at least one class reunion  

p(private) be the proportion of alumni of the private university who attended at least one class reunion  

Hypotheses are:

H_{0}: p(public) = p(private)

H_{a}: p(public) ≠ p(private)

The formula for the test statistic is given as:

z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

  • p1 is the sample proportion of  public university students who attended at least one class reunion  (\frac{808}{1311}=0.616)
  • p2 is the sample proportion of private university students who attended at least one class reunion  (\frac{647}{1038}=0.623)
  • p is the pool proportion of p1 and p2 (\frac{808+647}{1311+1038}=0.619)
  • n1 is the sample size of the alumni from public university (1311)
  • n2 is the sample size of the students from private university (1038)

Then z=\frac{0.616-0.623}{\sqrt{{0.619*0.381*(\frac{1}{1311} +\frac{1}{1038}) }}} =-0.207

Since p-value of the test statistic is 0.836>0.05 we fail to reject the null hypothesis.  

6 0
3 years ago
HELP PLEASE! In ΔABC, m∠A = 43°, m∠B = 62°, and BC = 22 in. What is AB to the nearest tenth of an inch?
sdas [7]

Answer:

I think its 14.1 I hope you get it right! :)

Step-by-step explanation:

6 0
3 years ago
Assign two variables for each problem, and write the equations. Do not solve.
NemiM [27]
Price of boots is represented as x, price of tennis shoes is represented as y. x-y=44.38 x+y=196.12 Isolate x. (Or y, if you wanted to) x=y+44.38 x=196.12-y Set them equal to each other. y+44.38=196.12-y Solve for y. Then plug it in to either of the two original equations to find x. x=120.24 y=75.86 Note: This is assuming that the boots are more expensive than the tennis shoes. If the tennis shoes are more expensive than the boots, then the prices would be switched. I didn't find this clear in your question.
6 0
3 years ago
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