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xeze [42]
4 years ago
15

Question: 2/20

Mathematics
1 answer:
Ivahew [28]4 years ago
3 0

Answer:

B. d = sin2e

Step-by-step explanation:

Use the following identity: <em>2cos(x)sin(x)=sin(2x)</em>

Therefore

d = 2sine cose

can be written as

d=sin(2e)

<em>However, if you want step by step (for example if your teacher does not give you formula sheets with identities let me know.</em>

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yasmine bought 6 gallons of apple juice. after filing up 4 bottles of the same juice, she had 0.3 gallons of apple juice left. W
Mazyrski [523]
6 - 0.3 = 5.7 gallons

5.7/4 = 1.425 gallons in each bottle
6 0
4 years ago
Can someone please explain how to find x and y I don’t understand this at all
Katena32 [7]

To find y you must recognize that 141+3y=180 . You know this since half of a circle is 180, and a line is basically half a circle if you arc from end point to end point.

You can then subtract 141 from both sides,

3y = 39

Then divide both sides by 3,

y=13

You would want to use 39° for 3y° since 3·13= 39.

A triangle can only contain 180°, so you would add 68 and 39 together and then subtract this from 180 to give you x.

68 + 39 + x = 180

107 + x = 180

x = 73

3 0
3 years ago
The circumferences of WNBA basketballs follow a normal distribution where mean = 29.0 ; and standard deviation = 0.1 inches.
slega [8]

Answer:

P(X

And we can find this probability using the normal standard distribution, excel or a calculator and we got:

P(z

And if we convert this into percent we got 84.13% rounded to the nearest percent would be:

84%

Step-by-step explanation:

Let X the random variable that represent the circumferences of a population, and for this case we know the distribution for X is given by:

X \sim N(29,0.1)  

Where \mu=29 and \sigma=0.1

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard distribution, excel or a calculator and we got:

P(z

And if we convert this into percent we got 84.13% rounded to the nearest percent would be:

84%

4 0
3 years ago
Write an equation of the direct variation that includes the point (9, –12).
Crank
For direct variation:
y = kx
-12 = 9k
k = -12/9 = -4/3
Therefore, the required equation is y = -4/3 x
5 0
3 years ago
Select Parameter or Statistic to classify each statement.
REY [17]

Answer:

Step-by-step explanation:

A parameter describes a population, and a statistic describes a sample.

The first one is a statistic.  A sample was surveyed.

The second one is a parameter.  It describes the entire soccer team.

The third one is a statistic.  A sample was surveyed.

The fourth one is a parameter.  It describes the entire golf team.

6 0
4 years ago
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