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s344n2d4d5 [400]
3 years ago
8

I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE!!!

Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0

Answer:

B Survey a random sample of eighth-grade students

Step-by-step explanation:

In order to reach the best conclusion without biased data, the best sampling method would be B because not only does it survey 8th graders, but it also surveys a random group, ensuring that not all of the students are potentially excelling in and/or having trouble with homework.

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12,348 <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula">
Diano4ka-milaya [45]

Answer:

radius of the sphere (r) = 21 units

Step-by-step explanation:

here's the solution : -

=》

12348\pi =  \frac{4}{3}  \times \pi \times  {r}^{3}

=》

{r}^{3}  = 12348 \times  \frac{3}{4}

( pi cancel out )

=》

{r}^{3}  = 9261

=》

r = 21

4 0
2 years ago
What fraction of 3 is 2 2/5
Yuki888 [10]

Answer: 2 2/5 is 4/5 of 3

Step-by-step explanation:

We can view that as what do we multiply 3 by to get 2 2/5 and call that value x

3x = 2 2/5

x = (2 2/5)/3

Let's turn 2 2/5 into an improper fraction... 2 2/5 = 12/5

So we have

x = (12/5)/3 = (12/5)(1/3) = 4/5

Thus 2 2/5 is 4/5 of 3

Verify:  3(4/5) = 12/5 = 2 2/5

5 0
2 years ago
Please help
pychu [463]

Answer:

<h2>        y = x² - 1</h2>

Step-by-step explanation:

y = -1 for x = 0 {point(0, -1)} means -1 at the end of formula

If we add 1 to y-coordinate of  every given point we get the squares of x-coordinate:

(1, 0):   1² - 1 = 0

(2, 3):   2² - 1 = 4 - 1 = 3

(3, 8):   3² - 1 = 9 - 1 = 8

(4, 15):   4² - 1 = 16 - 1 = 15

So for any x:

(x, y)   y = x² - 1

6 0
3 years ago
6. Josh had 5 times as much money as Karen. Both spent $20 each. Josh has 6 times as
vazorg [7]

Answer:

Josh had $500

Karen had $100

Step-by-step explanation:

          J = 5K

  J - 20 = 6(K - 20)

5K - 20 = 6K - 120

      100 = K

          J = 500

3 0
2 years ago
5(x-6)+2=7x-10 using the distributive property
Lady_Fox [76]

x equals negative 9 i think


4 0
3 years ago
Read 2 more answers
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