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Alchen [17]
2 years ago
14

If you answers this question correctly i'll give you brainliest

Mathematics
2 answers:
melamori03 [73]2 years ago
6 0
I believe it would be C
siniylev [52]2 years ago
4 0

Answer:

D. Both of the dot A and B have the same mean

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Rewrite the equation by completing the square.<br> x^2 - 4x + 3 = 0
Degger [83]

Answer:

the answer would be x=3,1

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3 years ago
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Lim as x--&gt; 0 of (xcscx) is...
Serjik [45]
We know that:

limx→0 sin(x)/x = 1.
and
cscx = 1/sinx
so,
<span>limx→0 x/sinx = 1</span>
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3 years ago
The minute hand of a clock is 5 inches long. How far does the tip of the minute hand move in 25 minutes ?
Firdavs [7]

what’s the speed it moves at?

Step-by-step explanation:

8 0
2 years ago
In studies for a​ medication, 3 percent of patients gained weight as a side effect. Suppose 643 patients are randomly selected.
timofeeve [1]

Part a)

It was given that 3% of patients gained weight as a side effect.

This means

p = 0.03

q = 1 - 0.03 = 0.97

The mean is

\mu  = np

\mu = 643 \times 0.03 = 19.29

The standard deviation is

\sigma =  \sqrt{npq}

\sigma =  \sqrt{643 \times 0.03 \times 0.97}

\sigma =4.33

We want to find the probability that exactly 24 patients will gain weight as side effect.

P(X=24)

We apply the Continuity Correction Factor(CCF)

P(24-0.5<X<24+0.5)=P(23.5<X<24.5)

We convert to z-scores.

P(23.5 \: < \: X \: < \: 24.5) = P( \frac{23.5 - 19.29}{4.33} \: < \: z \: < \:  \frac{24.5 - 19.29}{4.33} ) \\  = P( 0.97\: < \: z \: < \:  1.20) \\  = 0.051

Part b) We want to find the probability that 24 or fewer patients will gain weight as a side effect.

P(X≤24)

We apply the continuity correction factor to get;

P(X<24+0.5)=P(X<24.5)

We convert to z-scores to get:

P(X \: < \: 24.5) = P(z \: < \:  \frac{24.5 - 19.29}{4.33} )  \\ =   P(z \: < \: 1.20)  \\  = 0.8849

Part c)

We want to find the probability that

11 or more patients will gain weight as a side effect.

P(X≥11)

Apply correction factor to get:

P(X>11-0.5)=P(X>10.5)

We convert to z-scores:

P(X \: > \: 10.5) = P(z \: > \:  \frac{10.5 - 19.29}{4.33} )  \\ = P(z \: > \:  - 2.03)

= 0.9788

Part d)

We want to find the probability that:

between 24 and 28, inclusive, will gain weight as a side effect.

P(24≤X≤28)=

P(23.5≤X≤28.5)

Convert to z-scores:

P(23.5  \:  <  \: X \:  <  \: 28.5) = P( \frac{23.5 - 19.29}{4.33}   \:  <  \: z \:  <  \:  \frac{28.5 - 19.29}{4.33} ) \\  = P( 0.97\:  <  \: z \:  <  \: 2.13) \\  = 0.1494

3 0
3 years ago
How do you solve x for a triangle with 33 and 38 degrees?
scZoUnD [109]

Answer:

x=109 degrees

Step-by-step explanation:

so 33+39+x=180 degrees because of sum of angles in a triangle theorem. Then now you solve because of algebra

3 0
2 years ago
Read 2 more answers
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