3 years ago

I will give BRAINLIEST for questions 3 and 4

Mathematics

1 answer:

lisov135 [29]3 years ago

4 0

3. A 4. C
your welcome :)

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Help plz A book store owner randomly samples 100 customers on two separate days to see what their favorite type of book is. The

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The answer is 340 i just took this quiz

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3 years ago

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I need yo help B, on dis question

Anna71 [15]

For this case we can use the law of the sine to solve the problem.
We have then:
$5 / sine (68) = 5 / sine (x)
$
From here, we clear the value of x.
We have then:
$sine (x) = (5/5) * (sine (68))
$
Rewriting we have:
$sine (x) = (1) * (sine (68))

sine (x) = sine (68)

x = arcsine (sine (68))

x = 68$
Answer:
The angle R is given by:
x = 68 degrees
option B

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4 years ago

3 • { [ 4 ÷ 2 ] + 2 answer

mina [271]

Answer:

6+2=8

3×2+2=

6+2=8

good luck

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3 years ago

Find the center of the circle whose equation is x² + y² = 4.

Varvara68 [4.7K]

Answer:

The center of circle is $(0,0)$

Step-by-step explanation:

We need to find the center of the circle of the equation $x^{2}+y^{2}=4$

Since, the general equation of circle is $(x-h)^{2}+(y-k)^{2} = r^{2}$

Where (h,k) is center of circle and r is radius.

Re-write the circle equation is $x^{2}+y^{2}=4$ as,

$x^{2}+y^{2}=2^{2}$

Compare $x^{2}+y^{2}=2^{2}$ with $(x-h)^{2}+(y-k)^{2} = r^{2}$

so, $(x-0)^{2}+(y-0)^{2} = 2^{2}$

Hence, the center of circle is $(0,0)$

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3 years ago

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Discuss how the t-test for correlated groups and the t-test for single samples are alike and different.

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In one sample t-test, you compare it to some value that you already know to represent the population mean. In the t-test for correlated groups, the statistic is the difference between your two samples, which you test against the population mean difference.

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