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allochka39001 [22]
2 years ago
9

I NEED THIS FOR A TEST PLZ HELP!!!

Mathematics
2 answers:
DENIUS [597]2 years ago
8 0

Answer:

4x

Step-by-step explanation:

Anna35 [415]2 years ago
7 0

Answer:

A. 2x is correct.

Step-by-step explanation:

Finding the measure of the segment BC and ST by the Distance formula: B (5, 7), C (8, 8), S (1, 11), T (7, 13).

BC = √(8-5)² + (8 - 7)²

BC = √10

ST = √( 7 - 1)² + ( 13 - 11)²

ST = 2√10

Scale Factor = Image/ Pre-image = ST/BC = 2√10/√10 = 2

This means that the image, ST, is twice as large as the pre-image BC.

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Georgia has 9 meters of ribbon and wants to make 80 spirit ribbons that are each 12 cm long. Does she have enough ribbon?
avanturin [10]
Yes, she has more than enough ribbon
6 0
3 years ago
Read 2 more answers
Can someone please help me with this ASAP!!!!!
Veseljchak [2.6K]

Answer: is the second one

Step-by-step explanation: because is -3.2 and the second one is withdrawal

4 0
3 years ago
A worker at an automobile assembly plant checks new cars for defects. Of the first 280 cars
kifflom [539]

Answer:

i predict the 150 will have defects

Step-by-step explanation:

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then 10,500 divided by 70 which gives you

4 0
3 years ago
Can u help me ASAP!!!
Rom4ik [11]
Can be reduced to 1/3
8 0
3 years ago
According to a random sample taken at 12 A.M., body temperatures of healthy adults have a bell-shaped distribution with a mean o
Katarina [22]

Chebyshev’s Theorem establishes that at least 1 - 1/k²  of the population lie among k standard deviations from the mean.

This means that for k = 2,  1 - 1/4 = 0.75. In other words, 75% of the total population would be the percentage of healthy adults with body temperatures that are within 2standard deviations of the mean.

The maximum value of that range would be simply  μ + 2s, where μ is the mean and s the standard deviation. In the same way, the minimum value would be μ - 2s:

maximum = μ + 2s = 98.16˚F + 2*0.56˚F = 99.28˚F

minimum = μ - 2s = 98.16˚F - 2*0.56˚F  = 97.04˚F

In summary, at least 75% of the amount of healthy adults have a body temperature within 2 standard deviations of 98.16˚F, that is to say, a body temperature between 97.04˚F and 99.28˚F.

5 0
3 years ago
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