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3 years ago

Which statement is true about the circumference of a circle?

2 answers:

8 0

The correct statement is C. Although it should say 'T<span>he circumference is found by multiplying π by the squared radius'.

Hope this helps.</span>

Alchen [17]3 years ago

6 0

Answer: c.

Step-by-step explanation: The circumference can be found by multiplying pi by the radius squared

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A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

3 years ago

Dennis thought of a number. He adds 0.5 to that number and then multiplies the new result by 4. He then subtracts 2 and divides

Talja [164]

Let the x be the number
So,
(4(x+0.5)-2)/2=48
So,
x=24 is the number.

8 0

4 years ago

Read 2 more answers

The hypotenuse of a right triangle is 52 in. One leg of the triangle is 8 in. More than twice the lenght of the other. What is t

shusha [124]

Call the short leg a. The Pythagorean Theorem says:

$a^2 + (8 + 2 a)^2 = 52^2$

$a^2 + 8^2 + 32 a + 4a^2 = 52^2$

$5a^2 + 32 a + 8^2-52^2 = 0$

$5a^2 + 32 a + (8-52)(8+52) = 0$

$5a^2 + 32 a - (44)(60) = 0$

$(5a + 132)(a - 20) = 0$

Only the positive root $a=20$ is relevant here.

The other side is $2a+8=48$

The perimeter is $20 + 48 + 52 = 120$ inches

3 0

3 years ago

*PLEASE ANSWER* (: Find the measure of angle A.

natka813 [3]

Answer:

B. 120°

Step-by-step explanation:

If two tangents intersect in the exterior of a circle, then the measure of the angle formed is one half the difference of the measures of the intercepted arcs.

m∠A° = 1/2(300 - 60)

m∠A° = 1/2(240)

m∠A° = 120

3 0

3 years ago

Read 2 more answers

–5(x – 2) = –25 answer please do it please 11ghhhj

swat32

Answer:

The correct answer is x = 7.

Step-by-step explanation:

To solve this problem, our first step is to use the distributive property on the left side of the equation. This is modeled below:

-5x + 10 = -25

Next, we should subtract 10 from both sides of the equation.

-5x = -35

Finally, we should divide both sides of the equation by -5 to get the variable x alone on the left side of the equation.

x = 7

Therefore, the answer is x = 7.

Hope this helps!

8 0

3 years ago