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Neporo4naja [7]
4 years ago
12

Please help me how to figure this out I’m trying to figure out the area ASAP please

Mathematics
1 answer:
Natasha2012 [34]4 years ago
4 0

Answer:

1230.88m^{2}

Step-by-step explanation:

Shown is one-fourth of a circle. Also, according to the picture, the radius is 28 meters.

The area for a whole circle is 2\pi r^{2}.

Using that information, we can find the area as if the circle was whole instead of just the fourth.

2(\pi)(28m)^2 = 2(3.14)(784m^{2} ) = 4923.52m^{2}

Now that we know the area of the whole circle, we just have to divide it by four to find the area of the fourth of the circle.

4923.52m^{2}  / 4 = 1230.88m^{2}

That means that the area of the shape shown is 1230.88m^{2}.

I hope this helps!

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6 + 3(x+4)<br><br> PLEASEEE I NEED HELP
Ksivusya [100]

i'm going to assume you're supposed to solve for x

Answer:

x = -2

Step-by-step explanation:

so you're trying to get x out of the equation and by it self

i would start this off by setting the equation equal to 0

then subtract 6

i would then divide by 3 on each side

you should then have x+4=2

you then subtract 4 to cancel it out

you then get your answer of x = -2

hope this helps and lmk if you have questions!! <3

5 0
3 years ago
How can we ensure that we choose a sample of students that is representative of all 8:00 am classes that take place on a given m
pentagon [3]

By using a sampling technique  we ensure that we choose a sample of students that is representative of all 8:00 am classes.

There are  varieties of sampling strategies: chance sampling includes random selection, permitting you to make sturdy statistical inferences approximately the complete organization. Non-opportunity sampling entails non-random selection primarily based on convenience or different standards, permitting you to without problems gather records.

Random sampling is part of the sampling technique wherein every sample has an same possibility of being chosen. A sample chosen randomly is meant to be an unbiased representation of the overall population.

explanation;

we conclude the

  • 6 buildings in the college
  • 4 lecture halls in each building
  • 100 students in each lecture hall

Since the students' lecture hallsare on different building the samples are

Dividing the students into groups, the students will be grouped by the buildings of their lecture halls.

The number of students in each building is:

There are 100 students in each building

Then select at random an equal proportion of student from each building let 20 students in each building.

Learn more about Sampling technique here:-brainly.com/question/24466382

#SPJ4

8 0
2 years ago
What are two numbers whose sum is 11 and whose product is -60?
scoray [572]
Step 1:
Enumerate pairs of numbers whose product is 60
(1,60)
(2,30)
(3,20)
(4,15)
(5,12)
(6,10)
(10,6)
...
2. identify the pair whose components have a difference of 11.
(4,15)
3. attach a negative sign to the smaller component so that the sum is +11.
(-4,15)

Answer: the numbers are -4 and 15.
4 0
4 years ago
The vertices of a figure are given. Rotate the figure as described. Find the coordinates of the image. E(−4, 1), F(−3, 3), G(−2,
MA_775_DIABLO [31]

Answer:

  E'(4, -1), F'(3, -3), G'(2, -3), H'(1, -1)

Step-by-step explanation:

Rotation 180° about the origin negates each coordinate value.

6 0
4 years ago
a right triangle has side lengths 15 centimeters, 25 centimeters, and 20 centimeters. How can you use the Pythagorean Theorem to
nika2105 [10]

The sides of right triangle are related based on Pythagorean Theorem.  

Step-by-step explanation:

Given that,

Side 1 = s1 = 15cm

Side 2 = s2 = 20cm

Side 3 = s3 = 25cm

The general definition of Pythagorean Theorem is that the square of hypotenuse is equal to the sum of square of other two sides in right triangle.

Also, hypotenuse is the largest side of rectangle. So, it is 25 cm.

In that case, the Pythagorean Theorem would be:

(s3)^{2} = (s2)^{2} + (s1)^{2}

(25)^{2} = (20)^{2} + (15)^{2}

625 = 400 + 225

625 = 625

Hence, the sides of right triangle are related based on Pythagorean Theorem.  

5 0
4 years ago
Read 2 more answers
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