3 years ago

Help ASAP please both questions

Mathematics

1 answer:

LiRa [457]3 years ago

7 0

Both should be yes..there is exactly one x input for every y input

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Below is data collected from a random sample of 80 students regarding

Vsevolod [243]

<u>Corrected Question</u>

Below is data collected from a random sample of 80 students regarding their fitness habits. If the entire school has 600 students, then what is a reasonable estimate for the number of students who consider themselves to have an average fitness habits.

Answer:

(D)330

Step-by-step explanation:

Out of a random sample of 80 students

44 considered themselves to have AVERAGE fitness habits.

Relative Frequency of Students with average fitness habits=44/80

Therefore, out of the total population of 600 students

Expected Number of Students with average fitness habits

=Relative Frequency of Students with average fitness habits X Total Population

$=\dfrac{44}{80}X600\\\\ =330$

<u>The correct option is D.</u>

3 0

3 years ago

How do i do 2 x squared + 7=4

Trava [24]

Answer:

x = ±i sqrt(3/2)

Step-by-step explanation:

2x^2+7 = 4

Subtract 7 from each side

2x^2+7-7 = 4-7

2x^2 = -3

Divide by 2 on each side

2x^2/2 = -3/2

x^2 = -3/2

There is no real solution, only imaginary solutions

Taking the square root of each side

sqrt(x^2) = sqrt(-3/2)

x = ±i sqrt(3/2)

4 0

3 years ago

30 POINTS!!!!!!!!!!

Zolol [24]

Answer:

A and B

Step-by-step explanation:

5 0

3 years ago

Find an acute angle whose sine is 0.52

Montano1993 [528]

To find the answer, you have to find the inverse sin of 0.52 which is 31.3

6 0

3 years ago

In the first 3 days of class, Maria lost 2 pencils. If maria keeps losing pencils at the same rate for 60 days of class, how man

Lyrx [107]

Rounded to the nearest whole number, it seems as if she will lose 40 pencils at this rate.

2/3 = .66
60x.66=39.6
39.6 - 40

Hope this was helpful!

6 0

4 years ago

Read 2 more answers