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d1i1m1o1n
2 months ago
10

30 POINTS PLZ HELP ME!!!!

Mathematics
2 answers:
Leona [12.6K]2 months ago
7 0
D.
Inessa [12.5K]2 months ago
5 0
It’s C because if you analyze the problem correctly, the result will be 10.50.
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Raphael can finish his math project in 3 hours. It takes Jai to do the same project in 4 hours. If they will work together as pa
babunello [11817]
The time required would be 2:30. If we assume they both take 3 hours, working together would halve the time. However, if Jai requires an additional hour due to a slower pace, adding that brings the total to 2:30.
5 0
1 month ago
An automotive manufacturer has developed a new type of tire that the research team believes to increase fuel efficiency. the man
PIT_PIT [12445]

Answer:

3) One-sided, compare two populations

Step-by-step explanation:

A manufacturer intends to evaluate if there is an improvement in the average gas mileage among mid-sized sedans that use a new type of tire, in comparison to those that do not utilize this tire type.

Thus, we have two distinct populations:

Population 1: Mid-sized sedans equipped with the new tire.

Population 2: Mid-sized sedans without the new tire.

Consequently, a comparison is being made between these two populations.

Furthermore, the manufacturer aims to determine if there is an enhancement in average gas mileage. As such, the alternative hypothesis will be right-tailed, indicating it is a one-sided test.

6 0
2 months ago
Fill in the blanks. a. A​ relative-frequency distribution is to a variable as a​ __________ distribution is to a random variable
AnnZ [12381]

Answer:

a. A relative-frequency distribution relates to a variable just as a _____probability_____ distribution relates to a random variable. b. A relative-frequency histogram pertains to a variable similarly to how a _____probability_____ histogram pertains to a random variable.

Step-by-step explanation:

Probability, a mathematical concept, involves numerical assessments of how likely a certain event may occur, indicating the validity of its occurrence. The range for the probability of any event is typically between 0 and 1,

with 0 signifying impossibility and 1 indicating certainty of occurrence.

4 0
3 months ago
Two planes A and B can each fly through still air at 550 mph. The distance from Paris to Los Angeles is 5000 miles. Wind blows f
PIT_PIT [12445]

Answer:2688.63 miles

Step-by-step explanation:

Given

The distance from Paris to Los Angeles d=5000 miles

Wind traveling at 100 mph from Los Angeles to Paris

The velocity of the plane through still air is v=550 mph

Relative velocity of Plane A is v_a=550-100 =450 mph since Plane A is heading against the wind

Relative velocity of Plane B is v_b=550+100=650 mph

Plane A departs at noon

Distance covered by Plane A in 1 hour =450\times 1=450 miles

The total separation distance between the planes is 5000-450=4550 miles

Assuming they meet after t hours

Distance covered by Plane B in that time frame =v_b\times t=650\times t

Distance traveled by Plane A in t hours is =v_a\times t=450 t

The total distance equals 4550 miles

4550=650t+450t

t=\frac{4550}{1100}

t=4.13 hr

Distance traveled by B is =650\times 4.136=2688.63 miles

thus, they meet at a point 2688.63 miles away from Los Angeles.

5 0
3 months ago
If p(x) = 5(x^2+1)+16 what is the value of p(11)
zzz [12365]
5(11 squared + 1) plus 16

5(121 + 1) plus 16

5(122) plus 16

605 plus 16

p(11) equals 626
4 0
2 months ago
Read 2 more answers
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