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3 years ago

Which expression is equivalent to sine StartFraction 7 pi Over 6 EndFraction?

Mathematics

2 answers:

miskamm [114]3 years ago

7 0

Answer:

it is d the test sayed

Step-by-step explanation:

Nadya [2.5K]3 years ago

4 0

Answer:

Its d

Step-by-step explanation:

I plugged the stuff into photo math and once solved d was equal to it

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2x+8(x+3) = 3(x-13) please show the work, i’ll mark brainliest

tigry1 [53]

Answer:

x = -9

Step-by-step explanation:

2x + 8( x + 3 ) = 3( x - 13 )

Dstribute;

2x + 8 ( x + 3 ) = 3 ( x - 13 )

2x + ((8)(x)) + ((8)(3)) = ((3)(x)) - ((13)(3))

2x + 8x + 24 = 3x - 39

Combine like terms;

2x + 8x + 24 = 3x - 39

10x + 24 = 3x - 39

Inverse operations;

10x + 24 = 3x - 39

-3x -3x

7x + 24 = -39

-24 -24

7x = - 63

/7 /7

x = -9

3 0

3 years ago

Read 2 more answers

(20 points) A random sample of =1200 n = 1200 registered voters and found that 620 would vote for the Republican candidate in a

LenaWriter [7]

Answer:

The test statistic is Z = 1.157

Step-by-step explanation:

Given that:

The sample size n = 1200

The sample proportion of those that will vote for the Republican candidate is represented by $\hat p = \dfrac{x}{n}$

$\hat p = \dfrac{620}{1200}$

$\hat p =0.5167$

The null and the alternative hypothesis can be computed as:

$H_o: P=0.50 \\ \\ H_a :P>0.50$

The formula for the one-sample Z-test for the population proportion can be expressed as:

$Z = \dfrac{\hat p - P_o}{\sqrt{\dfrac{P_o(1-P_o)}{n}}}$

$Z = \dfrac{0.5167 - 0.5}{\sqrt{\dfrac{0.5(1-0.5)}{1200}}}$

$Z = \dfrac{0.0167}{\sqrt{\dfrac{0.5(0.5)}{1200}}}$

$Z = \dfrac{0.0167}{\sqrt{\dfrac{0.25}{1200}}}$

$Z = \dfrac{0.0167}{\sqrt{2.08333333\times10^{-4}}}$

Z = 1.157

4 0

3 years ago

If 50% of a number is 300, what is the numbers?

kotegsom [21]

50 per cent can also be termed as a half of the number.

therefore 300 is a ½ of the original number

300 multiplied by 2

answer= 600

4 0

4 years ago

2 divided by n equals negative 7

solniwko [45]

Answer:

n= 2/-7

Step-by-step explanation:

2/n = -7

Multiply by n: 2= -7n

Divide by -7: n= 2/-7, or n= -0.286

6 0

4 years ago

Can anyone please help me this? stuck with this problem for hours

Art [367]

First time the area of the circle and the square.
The radius of the first is 4, so the area of the circle is 16pi.
The area of the square is 32.
You can subtract the area of the circle by the square because some most of the circle is being covered by the square.
16pi-32 is the area of the circle that is visible.
16pi-32:32 can be simplified to pi-2:2
So the probability that a randomly selected point within the circle falls in the white area is
pi-2:2 or in decimal terms, ≈1.14:2

3 0

4 years ago

Read 2 more answers