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Arturiano [62]
3 years ago
13

Hi need help PLEASE

Mathematics
1 answer:
Mariulka [41]3 years ago
5 0
The answer is B.


hope i helped
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YOU RRR MEH HEROOOZZ! PUHLEASZEEE ITS 10:30pm!!
avanturin [10]

Answer:

x(35)\approx 11.8

Step-by-step explanation:

<u>Modeling With Functions </u>

We have a table of values of speeds vs distance taken for a car to stop. We are required to find a model that uses the square root and fits the given data to predict other values of d as a function of v.

By the nature of the problem, we can know that for v=0, d must be 0 too. So our model won't include a vertical shift or independent term. Being v the speed of the car and x the distance it takes to stop, we use the following model

x(v)=A\sqrt{v}

We must find A to make the function fit the data. Let's use the first point (v,x); (20,9)

9=A\sqrt{20}

Solving for A

\displaystyle A=\frac{9}{\sqrt{20}}

A\approx 2

Then we have

x(v)=2\sqrt{v}

Evaluating for v=35

x(35)=2\sqrt{35}=11.83

\boxed{x(35)\approx 11.8}

Last option

8 0
3 years ago
The mean temperature for the first 4 days in January was 8°C. The mean temperature for the first 5 days in January was 7°C. What
ahrayia [7]
Answer : The 5th day = 3 Celsius

Explanation:
the average of the first 4 day is 8
Which mean the combine temp on the first 4 day is 8 x 4 = 32


Now on the first 5 day the average temp is 7

Then the combine temp on the first 5 day is 7 x 5 = 35

Find the 5th day

4 days combine temp + 5th day = the combine temp of 5 days

32 + 5th day = 35
5th day = 35-32
5th day temp = 3C
3 0
3 years ago
What is the answer to 1. please explain!
ziro4ka [17]
The answer is given below:

8 0
3 years ago
Read 2 more answers
Express number 9 as a unit rate, you can also round
Katena32 [7]
125/200= 0.625 cents

0.625 cents to the nearest cent= 0.63

The unit rate is 0.63 miles.

Hope this helps!







6 0
3 years ago
3/4-2/3 as fractions​
mihalych1998 [28]

Answer:

2

3

–

3

4

=

– 1

12

Step-by-step explanation: is this the answer?

8 0
3 years ago
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