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Alika [10]
2 years ago
7

NEED HELP ASAP!!! | WILL GIVE BRAINLIEST!!!

Mathematics
2 answers:
Ilya [14]2 years ago
4 0

Answer:

D

Step-by-step explanation:

so from the graph we see that at zero weeks (the start), he has 15 rocks.

each week he adds 5 rocks. (he is at 30 rocks after 3 weeks)

This narrows the choices down and D is our answer


Pavlova-9 [17]2 years ago
4 0
D .Tom has rocks in his collection. Each week he adds 5 more rocks . The graph shows how many rocks Tom has over time .


hope it helps plz mark as brainliest
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A line's y -intercept is 10,and its slope is 9 . What is its equation in slope-intercept form?
LenaWriter [7]

Answer:

y = 9x + 10

Step-by-step explanation:

y = mx + b

Here, m is slope and b is y-intercept

y = 9x + 10

3 0
3 years ago
Could a triangle be constructed with side lengths 4 cm, 5 cm and 13 cm? *​
Ratling [72]

Answer:

NO.

Step-by-step explanation:

No because 13 > 4 + 5.

7 0
3 years ago
000
grigory [225]

Answer:

59

Step-by-step explanation:

4 0
3 years ago
Please help this is my 3rd time asking :(​
Ainat [17]

Answer:

$6

Step-by-step explanation:

She bought a toy for 4 dollars, so we need to subtract that from 88. This gives us 84 dolalrs. She bought 8 shirts and 6 pants, which is 14 items total. Divide 88 by 14 and you get 6.

Hope that helps :)

4 0
2 years ago
Read 2 more answers
A multiple choice test has four possible answers for each question. Let X be the number of correct responses in a test of 100 qu
dimulka [17.4K]

Answer:

a. 4.33.

Step-by-step explanation:

If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25

Sample size (n) = 100 questions

The standard deviation of a proportion 'p' is given by:

s=\sqrt{\frac{p*(1-p)}{n} }

Applying the given data:

s=\sqrt{\frac{0.25*(1-0.25)}{100}}\\s=0.0433

If X is the number of correct responses in 100 guesses, the standard deviation of X is:

\sigma = n*s=100*0.0433\\\sigma = 4.33

The standard deviation of X is 4.33 questions.

7 0
2 years ago
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