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kobusy [5.1K]
3 years ago
12

Which best describes the strength of the model?

Mathematics
1 answer:
julsineya [31]3 years ago
7 0

Answer:

A weak positive correlation or A

Step-by-step explanation:

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Mason and Nora decided to swim across the river. Mason began swimming 1 minute earlier than Nora.
Mademuasel [1]
Mason:

time = t
V =  6 ft/s
Distance = v * t = 6t

Nora:

time = t - 60 [ I passed 1 minute to seconds]
V = 8 ft/s
Dsitance = v*t = 8 (t - 60)

Both distance are equal

6t = 8(t-60)
6t = 8t - 480
8t -6t = 480
2t = 480
t = 480/2
t = 240 s

Mason had been swimming for 240 seconds when both had swan the same distance.
5 0
4 years ago
A toy car costing $50 is on sale for 10% off. What is the sale price of the car? *
Setler [38]

Answer:

$45.00

Step-by-step explanation:

3 0
3 years ago
If the number of $8 child tickets is 17 less than 3 times the number of $12 adult tickets and the theater took in $584, how many
NISA [10]

Answer:

The number of child tickets sold was 43 and the number of adult tickets sold was 20

Step-by-step explanation:

Let

x ----> the number of child tickets sold

y ----> the number of adult tickets sold

we know that

x=3y-17 -----> equation A

8x+12y=584 ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (43,20)

see the attached figure

therefore

The number of child tickets sold was 43 and the number of adult tickets sold was 20

7 0
3 years ago
Read 2 more answers
On a multiple choice test with 17 questions, each question has four possible answers, one of which is correct. For students who
Ira Lisetskai [31]
<h2>The required "option c) 4.3" is correct.</h2>

Step-by-step explanation:

Given,

Total number of multiple choice questions = 17

To find, the mean for the number of correct answers = ?

Each question has four possible answers.

If guessing at random:

There is only one in four chances.

\dfrac{1}{4}\times 100 =  25 % chance of getting a particular question right.

This is the same probability for each of the 17 questions.

If there is a 25 % chance of getting any given question right.

There are 17 questions.

∴ The total number of questions you will expect to get right =

25 %  × 17

= \dfrac{25}{100} \times 17

= \dfrac{17}{4}

= 4.25

≈ 4.3

∴ The mean for the number of correct answers = 4.3

Thus, the required "option c) 4.3" is correct.

3 0
4 years ago
Is 7766 a even number ?
fiasKO [112]

Answer: Yes.

Step-by-step explanation: If a number ends in 0, 2, 4, 6, or 8, the number even number.

6 0
4 years ago
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