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maria [59]
2 years ago
12

What is (2m+7)+(4d+6)

Mathematics
1 answer:
SpyIntel [72]2 years ago
5 0

Answer:

4d+2m+13

Step-by-step explanation:

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Observe the graph below.<br> The graph shows a<br> function that is asymptotic to
JulijaS [17]
We have to see the graph to what the answer is. Sorry I wish I could help!
4 0
3 years ago
PLEASE HELP "Given a sample mean of 3.56 and a standard deviation of 0.98, which value falls within the 90% confidence interval
trasher [3.6K]

Answer:

D. 3.57

Step-by-step explanation: Edmentum

7 0
3 years ago
The circumference of a circle is 314 units. What is the area?
german

Answer:

7850 square units

Step-by-step explanation:

According to the question;

  • Circumference of a circle is 314 units;

We are required to find the area of the circle;

  • First, we need to ask ourselves how we get the perimeter of a circle;

Perimeter of a circle = pi × D or 2 pi r

Therefore;

Rearranging the formula;

D = Perimeter ÷ pi

Taking pi to be 3.14

Then;

Diameter = 314 units ÷ 3.14

              = 100 units

But, radius = Diameter ÷ 2

                  = 100 units ÷ 2

                  = 50 units

We also need to know how we calculate the area of a circle;

Area of a circle = pi×r²

Therefore;

Taking pi as 3.14

Then, Area = 3.14 × 50²

                   = 7850 square units

Thus, the area of the circle is 7850 square units

4 0
3 years ago
A triangle has vertices T(-2,4), E(6,2), and D(1,-1). Is ATED a right triangle?
inessss [21]

Answer:

  • B. Yes, because ED is perpendicular to DT which makes a right angle.

Step-by-step explanation:

Plot the given points and connect in pairs to get a triangle.

Visually we can say it is a right triangle as legs TD and ED seem perpendicular.

Let's confirm this by finding the slopes.

<u>Slope of TD:</u>

  • m = (-1 - 4)/(1 -(-2)) = -5/3

<u>Slope of ED:</u>

  • (-1 - 2)/ (1 - 6) = -3/-5 = 3/5

<u>Product of the slopes is:</u>

  • -5/3*3/5 = -1

This confirms DT⊥ED

Correct choice is B

6 0
2 years ago
A student scored 80 points in an exams,the teacher took off 5% off for lateness,what will be the student's final score
Zina [86]
Awesome question!

1.) You have 80 points and you want to take away 5% of them.

- 5% is 1/2 of 10%. And remember your number places. So 80 has 0 in the ones and an 8 in the tens place. Move the decimal over to the left 1 time and you get 8.00 Now you have 10% of 80. And 5% is one half of 10%, so 8/2 is 4.

4 is 5% of 80. And you take away 4 from 80 and end up with 76.

Hope I explained this for ya!
6 0
3 years ago
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