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2 years ago

I’m on a timer because I only have until tomorrow morning, please help me.

Mathematics

1 answer:

zzz [600]2 years ago

8 0

Answer: Process: 2.50x 1=

Step-by-step explanation: It weighs 1 pound and the jellybeans are sold at 2.50 per pound so you just have to times 2.50 by 1, which gives you the answer of it costing $2.50

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Please help! 20 points thanks :)

Irina18 [472]

The answer is D (5/4). We go up by 5 and to the side we go 4 in order to get between the points (0,8) and (-4,3). We know it’s rise over run. The rise is 5 because we go up by 5 and the run is 4 because we go to the side 4 times. By looking from left to right at the line, we see it’s a going to be positive. This means the answer is 5/4.

7 0

1 year ago

Read 2 more answers

in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l

Eddi Din [679]

Answer:

Distance between the observer and the red car is $250 Sin \frac{\pi}{3}t$

Step-by-step explanation:

Diameter of field = 500 m

Radius of field = $\frac{Diameter}{2}=\frac{500}{2}=250 m$

Let R be the radius and the speed at which the car completes race be w

So, $w=\frac{2\pi}{T}$

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = $\frac{30}{5}=6$

So, $w=\frac{2\pi}{6}=\frac{\pi}{3}$

Refer the attached figure

Angle between car and observer = wt

So, Distance between the observer and the red car is give as A sin wt

So, Distance between the observer and the red car= $250 Sin \frac{\pi}{3}t$

5 0

2 years ago

A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter

Digiron [165]

Answer:

at least 5

Step-by-step explanation:

If the question was similar to the one given below

A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter or a pair of distinct letters written in alphabetical order. What is the least number of letters that can be used if there are 12 participants, and each participant is to receive a different code?

The answer would be as follows

If we use 3 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

4C2= 6 ways to use these letters and the comma

If we use 4 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

5C2= 10 ways to use these letters and the comma

If we use 5 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

6C2= 15 ways to use these letters and the comma

We need the least number of the alphabets to assign codes to 12 participants.

So the least number of alphabets is 5 because it can give codes to at least to 12 people .

Pair of alphabets + distinct letter ≥ 12

5 + 1 ≥ 12

6c2 ≥ 12

15 ≥ 12

3 0

2 years ago

A secretary can type 56 words per minute. how much time will she need to type a 4200-word report?

tino4ka555 [31]

The answer would be D, because you do 4200÷56=75 minutes. 75 minutes= 1 hour and 15 minutes

7 0

2 years ago

I need to find the distance between pairs of integers like 8 and 32; 15 and 64; and -27 and 18. How do I do this?

Alona [7]

Answer:

i believe you have to divide 8 by each number to get the distance between the pairs of integers.

Step-by-step explanation:

5 0

2 years ago