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2 years ago

Identify the kind of sample that is described

Mathematics

1 answer:

ELEN [110]2 years ago

5 0

Answer:

Cluster sampling

Step-by-step explanation:

Choosing groups and sampling whole group.

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Write an equation for a line perpendicular to y= -4x +2 and passing through the point (12,6)

gtnhenbr [62]

Answer:

$y=\frac{1}{4} x+3$

Step-by-step explanation:

5 0

3 years ago

Solve this plsss..........

kari74 [83]

Answer:

xfbxcnfcvfxfhdfxbdfhsdxcbndf

Step-by-step explanation:

4 0

3 years ago

Find sin theta if cos theta is 4/5

Dima020 [189]

Answer:

Step-by-step explanation:

hello :

cos²θ +sin²θ = 1 and cosθ =4/5

(4/5)² + sin²θ = 1 so : sin²θ = 1 - 16/25

sin²θ = 9/25 = (3/5)²

sinθ = 3/5 or sinθ = - 3/5 because : (3/5)²= (- 3/5)²= 9/25

5 0

2 years ago

2x-4/5=4<br> plsss answer quick

nikdorinn [45]

Answer:

Step-by-step explanation:

$\frac{2x - 4}{5} =4$

First of all multiply through by 5 to eliminate the fraction

That's

$5 \times \frac{2x - 4}{5} = 4 \times 5 \\ 2x - 4 = 20$

Next using the addition property add 4 to both sides of the equation

We have

$2x - 4 + 4 = 20 + 4 \\ 2x = 24$

<u>Divide both sides by 2</u>

$\frac{2x}{2} = \frac{24}{2}$

We have the final answer as

Hope this helps you

6 0

3 years ago

Read 2 more answers

Which expression represents the product of negative three-fourths x and –8x?

den301095 [7]

Answer:

6x²

Step-by-step explanation:

$-\frac{3}{4} x\times \left( -8x\right) =\frac{3}{4} x\times 8x$

$=\frac{3}{4} \times 8\times x\times x$

$=\frac{24}{4} \times x^{2}$

$=6x^2$

7 0

2 years ago