MATHEMATICS COLLEGE

your softball team has 8, 10, 9, and 3 hits during four games. Write and solve an equation to find how many hits the team needs in the fifth game to have a total of 40 hits

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

8+10+9+3=30. So, 40-30=10

Answer 2

Answer:

Answer:10

Step-by-step explanation:

Add 9 to 10 to get 19, then add 3 to get 22, then add 8 to get 30.

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Help any tutor help

Answers

the slope is 4, the equation is in y= mx + b format. the m, or in this case 4, is the slope.

Given that r = ( 7, 3, 9) and v = ( 3, 7, -9), evaluate r + va. (-21,-21,81)
b. (10,10,0)
c. (21,21,-81)
d. (-10,-10,0)

Answers

Answer:

b. (10,10,0)

Step-by-step explanation:

r+v can be evaluated if the vectors/matrices have the same dimensions.

These do. They are both 1 by 3 vectors.

Just add first to first in each.

Just add second to second in each.

Just add third to third in each.

Example:

(5,-5,6)+(1,2,3)

=(5+1,-5+2,6+3)

=(6,-3,9)

Done!

In general, (a,b,c)+(r,s,t)=(a+r,b+s,c+t).

r+v

=(7,3,9)+(3,7,-9)

=(7+3,3+7,9+-9)

=(10,10,0)

Done!

Of interest is whether the percent of managers at High Tech Inc. that pay over $8 per day for lunch is the same as the percent of technicians. Sixty managers are surveyed and forty-six of them pay over $8 per day for lunch. One hundred forty-nine technicians are surveyed and ninety-eight of them pay over $8 per day for lunch. The hypothesis test to use is Group of answer choices matched or paired samples two proportions independent group means, population standard deviations unknown independent group means, population standard deviations known.

Answers

Answer:

comparison of two sample proportions independent

Step-by-step explanation:

Given that the percent of managers at High Tech Inc. that pay over $8 per day for lunch is the same as the percent of technicians.

The data can be given as follows:

The samples are as follows

Managers 60 149

Who paid >8 46 98

Hence we compare sample proportions here.

The appropriate test would be

comparison of two sample proportions independent

I just need number 1

Answers

b is the awnser

Step-by-step explanation:

Answer:

Step-by-step explanation:

There are 96 squares in total. Yard is 3 feet, so you would divide the total by 3.

Blood potassium level, continued. Judy’s measured potassium level varies according to the Normal distribution with with μ=3.8 and σ=0.2mmol/l. Let’s consider what could happen if we took 4 separate measurements from Judy. What is the blood potassium level L such that the probability is only 0.05 that the average of 4 measurements is less than L? (Hint: This requires a backward Normal calculation.)the book says about 3.64 but i got 3.28