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Trava [24]
2 years ago
13

Pls help urgently extra points and mark brainlist

Mathematics
2 answers:
mash [69]2 years ago
7 0

Answer:

7 is the answer.

Step-by-step explanation:

As 42 = 2*3*7

and 2,3 and 7 all are prime numbers.

Andreas93 [3]2 years ago
3 0
Hello! The answer is 7
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In Exercises 51−56, the letters a, b, and c represent nonzero constants. Solve the equation for x
OverLord2011 [107]

Answer:

x = ¾-a

Step-by-step explanation:

x + a = ¾

Subtract a from each side

x + a -a= ¾-a

x = ¾-a

6 0
2 years ago
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What is the sine of A as a fraction?
NARA [144]

Answer:

15/17

Step-by-step explanation:

Sine is \frac{opposite}{hypotenuse}, and we see that the angle opposite of A is 15 while the hypotenuse is 17. Plug that into your formula and you get \frac{15}{17}.

7 0
3 years ago
Intrigued by a 2013 study at the University of Nebraska that suggested marijuana smokers may be thinner than other adults, a gro
Reptile [31]

this question is incomplete, the complete question is:

1. is this model effective

2. what is the correlation coefficient for this data.

3. for a student with a bmi of 25, what is the predicted number of hours under the influence.

Step-by-step explanation:

1. first of all this model is not effective because we have r² as 0.134. this tells us that only 13.4 percent of the of the variations that exist in this data has been explained by the model

1. we get the correlation coefficient by

+-\sqrt{r^{2} }

the regression slope coefficient has a negative sign. this is what we would use in calculating the correlation coefficient.

-\sqrt{r^{2} }

= -√0.134

= -0.366

therefore the correlation coefficient is -0.366

2. to get the number of hours under the influence with a bmi of 25

the equation is

49.2-1.15bmi

= 49.2-1.15(25)

= 49.2-28.75

= 20.45

8 0
3 years ago
Help me out pls!! I'll give Brainliest!!
marissa [1.9K]

Answer: Its A

Step-by-step explanation:

7 0
2 years ago
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The point (-1,-4) is on the line given by which equation below ?
Vlad1618 [11]

Answer:

D. y = 4x

Step-by-step explanation:

y = 4x

Plug in The point (-1,-4) into the equation

when x = -1, y = 4(-1) = -4

So (-1,-4) is the solution of y = 4x

4 0
3 years ago
Read 2 more answers
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