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nikklg [1K]
3 years ago
11

Reflections DO NOT preserve __________. This means the preimage (original) and the image(new) are NOT FACING the same way.

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0
It c okokokokokokokokokok
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What is the value of X?
il63 [147K]
2 1/2x - 3/4(2x+5)=3/8 3/8=0.375 2.5x - 0.75(2x+5)=0.375 2.5x - 1.5x - 3.75 = 0.373 2.5x-1.5x=4.12 1x=4.12 X= 4 1/8
4 0
3 years ago
A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 ki
shepuryov [24]

Answer

given,

mean = 12 Kg

standard deviation = 0.5 Kg

assume the observed statistic is = 11.1

 now, \bar{X}=11.1 , \mu = 12 , \sigma = 0.5

assuming the number of sample = 4

n = 4

Hypothesis test:

H₀ : μ≥ 12

Ha : μ < 12

now,

significant level α = 0.05

z* = \dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

z* = \dfrac{11.1-12}{\dfrac{0.5}{\sqrt{4}}}

     z* = -3.60

Test statistics, Z* = -3.60

P-value

P(Z<-3.60) = 0.002 (from z- table)

P- value = 0.002

now,

reject the value of H₀ when P-value < α

    0.002 < 0.05

since, it is less P-value < α , we have to reject the null hypothesis

5 0
3 years ago
In August, 85% of the middle school students voted in a school election. The number of students who voted was 544. How many stud
Maksim231197 [3]

Answer:

640 students

Step-by-step explanation:

544 divided by 85%= 640

5 0
3 years ago
Solve for x when 4x+16/12=x-4
stira [4]

Answer:

In short, Your Answer would be either 1 or 7

Step-by-step explanation:

|4x + 12| = 16

As it is in modulus function, it could be either +ve or -ve

4x+12 = 16   OR   4x - 12 = 16

4x = 16-12    OR   4x = 16 + 12

4x = 4           OR   4x = 28

x = 4/4     OR  x = 28/4

8 0
2 years ago
Chantal is driving on a highway at a steady speed. She drives 55 miles every hour. Let d be the total distance in miles and let
strojnjashka [21]

Answer:

d = 55h

Step-by-step explanation:

We are given that Chantal drives at a constant speed of 55 miles per hour.

If, d represents the total distance in miles, and

h represents number of hours, the following equation can be used to express the given situation:

d = 55h

For every hour, a distance of 55 miles is covered.

Thus, if h = 1, d = 55(1) = 55 miles

If h = 2, d = 55(2) = 110 miles.

Therefore, d = 55h , is an ideal equation that represents the situation given in the question above.

7 0
3 years ago
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