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Fynjy0 [20]
2 years ago
6

Approximately students attend Jones Middle School. Below is the data collected from two random samples of students regarding sch

ool lunch preference. ​ ​Which of the following inferences can be made based on the data collected? Select all that apply.
Mathematics
1 answer:
erastova [34]2 years ago
4 0

Answer:

there is nothing to select. u need to provide more info

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HEY PLEASE HELP ME ASAP I NEEEEEED HELP
maks197457 [2]
Since only half of the 8 white eggs are cracked, then there are 4 cracked, white eggs. The probability of drawing one of these 4 from the 18 total eggs is 4/18 which simplifies to 2/9 or 22%.

I hope this was quick enough haha, have a nice day and remember that Jesus loves you <3
3 0
2 years ago
Margie is standing on a bridge looking at the river below. She throws a rock over the bridge with an initial
Marina CMI [18]
<h2>Explanation:</h2><h2></h2>

Here we know that Margie is standing on a bridge looking at the river. She throws a rock over the bridge with an initial  velocity of 60 ft/sec. The height, h, of the rock at the rime t seconds after it was thrown can be modeled by the  equation:

h(t) = -16t^2+60t+72

To calculate how long will it take for the rock to reach the surface of the water, we need to set h(t)=0. So:

0 = -16t^2+60t+72 \\ \\ \\ \text{Using quadratic formula}: \\ \\ t=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ a=-16 \\ \\ b=60 \\ \\ c=72 \\ \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{8208}}{-32} \\ \\ t_{1}=4.70 \\ \\ t_{2}=-0.95

Given that time can't be negative, we just choose the positive value. Therefore, <em>it will take 4.70 seconds for the rock to reach the surface water.</em>

6 0
2 years ago
PLEASE HELP ME
Anon25 [30]

equivalent to 5/24 is 15/72 (multiply top and bottom by 3)

answer is d. 15/72

7 0
3 years ago
Read 2 more answers
Simplify expression:<br> 3^{−(4a+1)} −3^{−(4a−1)} + 3^{−4a}
lyudmila [28]
3^{-(4a+1)}-3^{-(4a-1)} + 3^{-4a} =3^{-4a-1 }-3^{- 4a+1 } + 3^{-4a}=\\ \\=3^{ -4a }*3^{-1}-3^{ - 4a }*3^1 + 3^{-4a} =3^{-4a}(3^{-1}-3+1)=3^{ -4a }*(\frac{1}{3}-2)=\\ \\=3^{ -4a }*(-1\frac{2}{3})=3^{ -4a }*(-\frac{5}{3})=3^{ -4a }*(-5)*\frac{1}{3} =-5 *3^{ -4a }*3^{-1}=\\ \\ =-5 *3^{ -4a +(-1)}=-5 *3^{ -4a -1}


3 0
2 years ago
Simplify - 4 power 4 × 5 power -4​
Dmitrij [34]

Answer:

4^4 * 5^-4

solution:

=4^4 * 1/5^4

=246*1/624

=246/624

=41/104

5 0
2 years ago
Read 2 more answers
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