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charle [14.2K]
2 years ago
14

Simplify the expression. ( I got 144, but i'm not sure)

Mathematics
2 answers:
g100num [7]2 years ago
8 0

Answer:

144 is correct

Step-by-step explanation:

13 - 1 is 12

12 times 12 = 144

144 divided by 2 is 72

72 times 2 is 144

Sholpan [36]2 years ago
6 0

Answer:

yes the answer is correct 144

Step-by-step explanation:

I hope this answer is correct please tell me

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What are the common factors of 24 64 88
8090 [49]

Answer is 8

8 times 3 is 24

8 times 8 is 64

8 times 11 is 88

7 0
2 years ago
A square grassy field is watered by 4 sprinklers. The sprinklers spray water in a circular pattern, as shown above. If the field
enot [183]
The answer is (3600 - 900π) ft²

Step 1. Find the radius r of circles.
Step 2. Find the area of the portion of the field that will be watered by the sprinklers (A1)
Step 3. Find the total area of the field (A2)
Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A)

Step 1. Find the radius r of circles
r = ?
According to the image, radius of a square is one fourth of the field side length:
r = s/4
s = 60 ft
r = 60/4 = 15 ft

Step 2. Find the area of the portion of the field that will be watered by the sprinklers.
The area of the field that will be watered by the sprinklers (A1) is actually total area of 4 circles with radius 15 ft.
Since the area of a circle is π r², then A1 is:
A1 = 4 * π r² = 4 * π * 15² = 900π ft²

Step 3. Find the total area of the field (A2)
The field is actually a square with side s = 60 ft.
A2 = s² = 60² = 3600 ft²

Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A).
To get the area of the portion of the field that will not be watered by the sprinklers (A) we need to subtract the area of 4 circles from the total area:
A = A2 - A1
A = (3600 - 900π) ft²
5 0
3 years ago
Read 2 more answers
Given ΔABE is an isosceles triangle with ∠ABE = 100° and ΔMNP is an isosceles triangle with one base angle measuring 40°. Are th
igomit [66]

Answer:

The triangles ABE and MNP are similar because the three corresponding angles are equal (AAA Criteria)

Step-by-step explanation:

we know that  

An isosceles triangle has two equal sides and two equal angles. The two equal angles are called the base angles and the third angle is called the vertex angle

The triangle ABE is an isosceles triangle with the vertex angle m∠ABE equal to 100\°

so

m∠BAE=m∠AEB-------> base angles

m∠BAE+m∠AEB+m∠ABE= 180\° ------> sum of internal angles of triangle

Find m∠BAE

2m∠BAE=180\°-100\°

m∠BAE=80\°/2=40\°

The measure of the angles of triangle ABE are 40\°-100\°-40\°

The triangle MNP is an isosceles triangle with the base angle m∠NMP and  m∠NPM equal to 40\°

so

m∠MNP+m∠NMP+m∠NPM= 180\° ------> sum of internal angles of triangle

Find m∠MNP (vertex angle)

m∠MNP=180\°-2*40\°

m∠MNP=100\°

The measure of the angles of triangle MNP are 40\°-100\°-40\°

therefore

The triangles ABE and MNP are similar because the three corresponding angles are equal (AAA Criteria)

7 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the points (2, -6)(2,−6) and (-1, 6)(−1,6)?
Crank

Answer:

y = -4x + 2

Step-by-step explanation:

To figure out the slope, plug the coordinates in the formula.

y2 - y1 / x2 - x1

= 6 - (-6) / -1 -2

= -4

Now you need to find the y-intercept, take the coordinates and plug them into your equation so far, which is y = -4x + b

y = -4x + b

-6 = -4(2) +b

-6 = -8 + b

2 = b

7 0
2 years ago
Can someone explain this
ycow [4]

Answer:

Step-by-step explanation:

To find measures of angles m and n

The triangle to the left has three sides of equal length.

This means that it will also have three angles of equal measure.

The internal angles of a triangle sum to 180°

So the internal angles of the left triangle are 180/3 = 60°

The top right angle is made up of one of the 60° angles and angle n

60 + n = 90

n = 30°

Again the internal angles of a triangle sum to 180°, so the right triangle

m + n + 90 = 180

m = 180 - 90 - 30

m  = 60°

or we could realize that the top and bottom horizontal lines are parallel because the vertical line on the right makes right angles to both of them.

Knowing that they are parallel, we also know that angle m and the top right 60° angle of the left triangle are opposite internal angles of a line intersecting parallel lines and must be identical angles, therefore

m = 60°

7 0
2 years ago
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