MATHEMATICS HIGH SCHOOL

Give a description of a 3/4- turn of the minute hand on a clock face.

Answers

Answer 1

Answer:

Answer: This turn will make a change of 45 minutes.

Step-by-step explanation: Now, a full turn of the minute hand in a clock face is an hour or 60 minutes.

Now, if we only do a 3/4 of a turn, the number of minutes passed is equal to:

3/4*60min = 45min

So in a 3/4 turn of the minute hand, the "change" in the time will be one of 45 minutes.

Answer 2

Answer: If the minute hand has turned 3/4 of the way around the face, it is equal to 45 minutes. (45/60)

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What is the value of 3.5(11)+1.9(11)+1.6(11)? a.40 b.77 c.4,096 d.9,317

Answers

3.5*11=38.5

1.9*11=20.9

1.6*11=17.6

38.5+20.9+17.6=77

the answer is C) 77

Answer:

Step-by-step explanation:

There are 376 stones in three piles. The second pile has 24 more stones than the first. The third pile has twice as many stones as the second. How many stones in each pile?

Answers

Let the stones of each piles be x, y and z respectively.

thus, x + y + z = 376

x=x
y = x + 24
z= 2y = 2(x+24)

This becomes x + x + 24 + 2(x+24) = 376

= 4x + 24 + 48 = 376

= 4x + 72 = 376

Thus, 4x = 304

Thus, x = 76

and y = 76 + 24 = 100

and z = 2 x 100 = 200

Thus, first pile has 76 stones, second pile has 100 stones and third pile has 200 stones

Which problem is being modeled on the number line?

Answers

I don’t see a number line but I can help

Answer:

Step-by-step explanation:

A researcher asks the question: "About how many times did you buy fast food for lunch last week?" Which of the following descriptive statistics would he or she likely use? A) Mean B) Median C) Mode D) Standard Deviation

Answers

The answer is the mean

Let f(x)=-4x+7 and g(x)=10x-6. Find f(g(x))

Answers

$\bf \begin{cases}f(x)=-4x+7\ng(x)=10x-6\end{cases}\qquad \qquad f(~~g(x)~~)=-4[g(x)]+7\n\n\nf(~~g(x)~~)=-4[10x-6]+7\implies f(~~g(x)~~)=-40x+24+7\n\n\nf(~~g(x)~~)=-40x+31$

How do you use an exponent to represent a number such as 16

Answers

$16 = 4* 4 = 2* 2* 2* 2 = \boxed{2^4}$

2^4 is the answer because 2*2*2*2*
4*4
16

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The number of copies made each week by teachers at Langley High School follows a bell-shaped distribution with a mean of 550 copies and standard deviation of 185 copies. Mr Thomas Made 782 copies last week. His z-score is at 1.25. Which of the following statements is best interpret his value

The graph of y=√x is shifted 2 units up and 5 units left, Which equation represents the new graph?A. y=-√x+5) +2 B. y=-√x-2) +5 C. y=-√x+2) -5 D. y=-√x-5) +2

Divide 6/13 by 6/12 . A. 9/16 B. 1/12 C. 13/12 D. 12/13

What two numbers multiply together equal -40 add together to equal positive 6