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MAXImum [283]
3 years ago
7

Area of a Circle This activity will help you meet these educational goals: Mathematical Practices—You will make sense of problem

s and solve them, reason abstractly and quantitatively, construct viable arguments and analyze the reasoning of others, and look for and express regularity in repeated reasoning. Directions Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work. Activity The diameter of each of the three circular lights in a traffic signal is 7 inches. In this activity, you will find the total area of the three lights. Part A Each circular light has a diameter of 7 inches. What is the radius of each light?​
Mathematics
1 answer:
Annette [7]3 years ago
8 0
Can someone tell me the answer
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What is the product of (4a+6)(3a-8)
Andreyy89

Answer:

12a²-14a-48

Step-by-step explanation:

4a(3a-8) + 6(3a-8)

= 12a²-32a+18a-48

=12a²-14a-48

4 0
3 years ago
Ten points to the correct answer
ale4655 [162]
This should be the correct answer.

8 0
3 years ago
Read 2 more answers
A triangle has 2 sides that equal 5 inches. The other side equals 4 inches.
raketka [301]

It is an isosceles triangle because it has two equal sides and a hypotenuse.

We have given that

A triangle has 2 sides that equal 5 inches. The other side equals 4 inches.

We have to determine the type of the triangle

<h3>Which triangle has two sides that are equal?</h3>

An isosceles triangle can be drawn in many different ways. It can be drawn to have two equal sides and two equal angles or with two acute angles and one obtuse angle.

Therefore,It is an isosceles triangle because it has two equal sides and a hypotenuse.

To learn more about the triangle visit:

brainly.com/question/17335144

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3 0
2 years ago
1 Point<br> The circle below is centered at (-3, 2) and has a radius of 3. What is its<br> equation?
arlik [135]

Answer:

(x + 3)^2 + (y - 2)^2 = 9

Step-by-step explanation:

<u>Equation for a circle:  (x – h)^2 + (y – k)^2 = r^2</u>

<u />

<u>Step 1:  Determine what h, k, and r are</u>

<em>h is the x value of the point:  -3</em>

<em>k is the y value of the point:  2</em>

<em>r is the radius of the circle:  3</em>

<u>Step 2:  Plug in and solve</u>

(x – h)^2 + (y – k)^2 = r^2

(x – (-3))^2 + (y – (2))^2 = (3)^2

<em>(x + 3)^2 + (y - 2)^2 = 9</em>

<em />

Answer:  (x + 3)^2 + (y - 2)^2 = 9

8 0
3 years ago
1. Suppose you have a variable X~N(8, 1.5). What is the probability that you have values between (6.5, 9.5)
Natalija [7]

Answer:

0.6826 = 68.26% probability that you have values in this interval.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

X~N(8, 1.5)

This means that \mu = 8, \sigma = 1.5

What is the probability that you have values between (6.5, 9.5)?

This is the p-value of Z when X = 9.5 subtracted by the p-value of Z when X = 6.5. So

X = 9.5

Z = \frac{X - \mu}{\sigma}

Z = \frac{9.5 - 8}{1.5}

Z = 1

Z = 1 has a p-value of 0.8413.

X = 6.5

Z = \frac{X - \mu}{\sigma}

Z = \frac{6.5 - 8}{1.5}

Z = -1

Z = -1 has a p-value of 0.1587

0.8413 - 0.1587 = 0.6826

0.6826 = 68.26% probability that you have values in this interval.

7 0
2 years ago
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