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Schach [20]
3 years ago
13

An air-conditioning repair technician claims to complete 67% of repairs in under an hour. A random sample of 31

Mathematics
1 answer:
igomit [66]3 years ago
4 0

Answer:

No, the difference between the sample result and what is expected is not extreme enough. The probability of it occurring by chance alone is not unlikely.

Step-by-step explanation:

Edge 2021

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Choose the function whose graph is given by:
Sophie [7]

Answer:

C.y=sin(x-2)

Step-by-step explanation:

Using the topic of transformation of functions(rules shown in picture above)

the the (x-2) moves the graph to places to the right

and as the sine graph goes through 0 and so you add 2 to the right (but there is a problem in the graph should in the picture as it should me labeled 0,90,180,270,360 not these small numbers)

hope it helps!! :)

5 0
2 years ago
Factor the expression 54x+81 using the GCF.
Vikki [24]

We are given the expression,

54x+81

Here we have to find Greatest Common Factor of 54 and 81

Factors of 54 are 1, 2, 3, 6, 9, 18 and 27.

Factors of 81 are 1, 3, 9, 27 and 81.

Greatest common factor of 54 and 81 is 27.

So we take out 27 common, rewriting the expression

27(2x+3)

Answer: 54x+81 in factored form equals 27(2x+3).

7 0
4 years ago
Read 2 more answers
If the mean of the data set is 84 points, find Haruka's final exam score in chemistry,
Pepsi [2]

The answer is 45 because if you divide 84 and 2 you get 42 and then add 3

8 0
3 years ago
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In triangle STU, u2 = s2 + t2.
sineoko [7]

Answer:

(B) The measure of angle SUT is equal to 90 degrees

Step-by-step explanation:

It is given that in In triangle STU, u^2=s^2+t^2.

We can see from the triangle and also the given condition that the triangle will be right triangle as it is satisfying the Pythagoras theorem.

(Hyp)^2=(Base)^2+(Perpendicular)^2

that is:

u^{2}=s^{2}+t^{2}

where u is the hypotenuse, s is the base and t is the perpendicular.

Thus, the angle SUT should be of 90°.

Thus, The measure of angle SUT is equal to 90 degrees.

Hence, option B is correct.

3 0
3 years ago
I Really Need Some Help With These I'm Really Struggling Can You Help Me Please
jeka57 [31]

Im not rlly sure about this it seems confusing

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3 years ago
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