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3 years ago

Samples of size n= 240 are randomly selected from the population of numbers (O through 20)

1 answer:

7 0

Oh this is easy, skewed to the right would have to make it a good 80 by 90 by 80 by 90 by 80 which would be 4+4 and make that 69

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Solve each prportion. (2/y-4)=(y+3/4)

vampirchik [111]

Answer:

y = 5, -4

Step-by-step explanation:

To solve proportions you cross-multiply.

$\frac{2}{y-4} =\frac{y+3}{4} \rightarrow 2\times4 = (y-4)\times(y+3) \rightarrow 8=y^2-y-12$

Now that we have 8 = y^2 - y - 12, we must make the entire trinomial equal to 0 by subtracting 8 from both sides.

y^2 - y - 20 = 0

Factor the trinomial.

(y - 5)(y + 4) = 0

Make both factors equal to 0 to solve for both values of y.

y - 5 = 0 --> y = 5
y + 4 = 0 --> y = -4

y = 5, -4

4 0

2 years ago

Higher-order thinking What two multiplication tables can help you find 3x 9? How could you use 3 x 9 to find 9 x 3?

babunello [35]

Answer:

Its simple if you will multiple 3 by 9 the answer will be 27 and if we multiple 9 by 3 so the answer will be same 27.

Step-by-step explanation:

Thank you..

8 0

3 years ago

Josh is hiking glacier national park. He has now hiked a total of 17km and is 2km short of being 1/2 of the way done with his hi

Alla [95]

Answer: The total length in kilometers is 38 km

Step-by-step explanation:

17 + 2 = 19 km is 1/2 of the total length, that is,

19 = (1/2)h

(1/2)h = 19 multiply both sides by 2

h = 2*19

h = 38 km

5 0

3 years ago

Please fill in the blanks! :D

ivann1987 [24]

Step-by-step explanation:

i think this is what you are asking for

5 0

2 years ago

Find the slope (-6,2) (4,5)

Misha Larkins [42]

Slope: $3/10$

Use the slope formula

$y_{2}-y_{1}/x_{2}-x_{1}\\5-2/4--6\\=3/10$

Note

$(x_{1},y_{1})=(-6,2)\\(x_{2},y_{1}=(4,5)$

3 0

2 years ago

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