MATHEMATICS HIGH SCHOOL

Do you mind helping me :)

Answers

Answer 1

Answer:

Answer:

B: 1 1/2

Step-by-step explanation:

just do 5.75 - 4.25 and that gives you 1.5 which is the same as 1 1/2

Answer 2

Answer:

Answer:

1 1/2. That's Answer B

Step-by-step explanation:

The scale divisors are 1/4 unit apart. Thus, the length of the red segment is 6 units, or 6/4, or 1.5, or 3/2. That's also 1 1/2. That's Answer B.

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Leann makes an average of 36 cookies per week. About how many cookies will she make in a year

Answers

Answer:

The answer is 1872 cookies.

Step-by-step explanation:

First we know that in one year there are 52.18 weeks or 52 weeks. You take that number of weeks and multiply it by 36.

If you multiply 36 by 52 you get 1872 cookies.

Or, if you multiply 52.18 by 36 you get 1878.48

Joe has eaten 2/5 of a pizza. Jane has eaten 1/8 of a pizza how many times more pizza has joe eaten than Jane

Answers

Well, the first thing you would do is find like denominators for each fraction.

Since the smallest common term between the two is 40, that will be your denominator for each. Then you would multiply the numerator by the number your denominator was multiplied to get to 40. So, you would end up with 16/40 because 5*8=40 and 2*8=16 and 5/40 because 8*5=40 and 1*5=5.

After that, you would just subtract them.

16/40 - 5/40 = 11/40 and as a decimal that is 0.275. So, Joe has eaten 0.275 more pizza than Jane.

Hope this helps! :)

How long does it take the ferris wheel to make one full rotation?h(t)=9sin(20(t-pi/2))+12 , h in metres and t in seconds

Answers

This is a circular ferris wheel, with diameter of 9 meters, and the axis
mounted 12 meters off the ground. The equation is the height of the
a point that starts out level with the axis, at 't' seconds after the wheel
starts up.

Now here's where things start to go awry:

The period of the revolution is the time it takes for the angle
inside the sine to change by 2pi .

20(t - pi/2) = 2pi

20t - 10pi = 2pi

20t = 12pi

t = 12pi/20 = 1.885 seconds

I can't help it. All I did was the math, and that was bullet-proof.
It was up to whoever wrote the question to guarantee that the
answer makes sense.

For one thing, I don't believe the 'pi/2' belongs inside the parentheses
with the 't'. But even if we take the 'pi/2' out of the parentheses, that
still only makes the period 3.183 seconds, which is still an uncomfortable
number ... especially for the riders.

Determine if the following tables from a lineAr equation if so identify the slope otherwise write non linear

Answers

2)
a*2 + b = 26;
a*(-4) + b = -16;
then, a*6 = 42 => a = 7 => b = 26 -14 => b = 12;

from table, 7*9 + 12 = 63 + 12 = 75, correct;
7*(-8) + 12 = -56 + 12 = -44, correct;

slope = ( -44 + 16) / ( -8 + 4) = ( - 28) / (-4) = 7 = a;

What is the unit rate of 2,16 and 4,32

Answers

Answer:

( 1/2 0.5 mph )

Step-by-step explanation:

In a unit rate, the denominator is always 1. So, to find unit rate, divide the denominator with the numerator in a way that the denominator becomes 1.

In a True/False question, two negatives will cancel each other out.
a. True
b. False