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ludmilkaskok [199]
3 years ago
10

A baseball analyst wants to determine the average speed of a fastball thrown in the major league this season. He chooses a week

at random. During that week, he will measure the speeds of a sample number of pitches. Which sample below is included in the population that he is interested in and comes closest to being random?
All pitches


All fastballs


All pitches by pitchers whose specialty is throwing fastballs


All fastballs thrown by pitchers whose specialty is throwing fastballs
Mathematics
1 answer:
umka21 [38]3 years ago
8 0

Answer:

he negative real number is -0.70.

Step-by-step explanation:

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If the Price Elasticity of Demand for a product is -.8, and the product currently sells for $100 per unit, how much will demand
egoroff_w [7]

Answer: Percentage change in quantity would decrease by 12.5%.

Step-by-step explanation:

Since we have given that

Price elasticity of demand = -0.8

Price of each unit = $100

After change, price of each unit becomes = $110

% change in quantity would be

\dfrac{New-old}{old}\times 100=\dfrac{110-100}{100}\times 100=10\%

As we know the relation between price, quantity and elasticity.

e_D=\dfrac{\text{\% change in quantity}}{\text{\%change in price}}\\\\-0.8=\dfrac{10\%}{x}\\\\x=\dfrac{10}{-0.8}\\\\x=-12.5\%

Hence, Percentage change in quantity would decrease by 12.5%.

8 0
3 years ago
If anyone has seen my other post this is my last one, I just really need to bring up my grade and I’ll really appreciate your an
Ganezh [65]

Answer:

55 mph

Step-by-step explanation:

First hour: 40 mph

Second, Third, Fourth hours:

180 miles / 3 hours = 60 mph

Average: 40 (hour 1) + 60 (hour 2) + 60 (hour 3) + 60 (hour 4) = 220 / 4 hours = 55 mph average

I hope this helps!

6 0
3 years ago
Read 2 more answers
How do you write 1/30 in decimal form?
Anarel [89]
Converting the fraction 1/30 into a decimal is very easy. 

To get 1/30 converted to decimal, you simply divide 1 by 30.
1/30 as a decimal is:

<span>0.033333333</span>
8 0
3 years ago
Lulu has exactly enough fencing to go around her rectangular garden. She has 40 m of fencing and the garden is 8 m wide. What is
vesna_86 [32]

Answer:12 m

Step-by-step explanation:

Given

Width of garden W=8\ m

Total fencing T=40\ m

If Lulu has enough fencing to go around her rectangular garden then , it should be equal to perimeter of garden

Suppose L is the length of garden

Therefore perimeter is P=2(L+W)

2(L+W)=40

L+W=20

L=20-8=12\ m

thus length of fencing is 12\ m

4 0
3 years ago
PLZ ANSWER: A sandwich store charges a $10 delivery fee and $4.50 for each sandwich which is the total cost language and deliver
Irina-Kira [14]
Answer

$37

Explanation

it costs $4.50 per sandwich so you multiply that by 6 which gets you $27. then you add the delivery fee ($10) to that and you get $37

hope this helps!!
6 0
3 years ago
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