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never [62]
3 years ago
7

Please help, I don’t know how to do this. Thank you

Mathematics
1 answer:
tigry1 [53]3 years ago
3 0

Answer:18•18•18=54

54/3

Step-by-step explanation:

By the diagram

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Could someone please help me asap!! Pleasseeeee and thanks.
kherson [118]

Answer:

Step-by-step explanation:

a² - b² = (a + b) (a - b)

1)x² - 36 = x² - 6² = (x + 6)(x-6)

2) 4x² - 16 = 4x² - 4*4 = 4(x² - 4)

                = 4(x² -2²)

                = 4(x + 4)(x-4)

3) 9x² -1 = 3²x² - 1² = (3x)² - 1²

             =(3x + 1)(3x - 1)

8 0
3 years ago
The perimeter of the triangular park shown on the right is 10x+2. What is the missing length ? 2x+5. X-1
Kipish [7]
If the two lengths of the triangle are 2x+6 and x-1

(2x+5)+(x-1)=3x+4

(10x+2)-(3x+4)= 7x-2
5 0
3 years ago
Can someone help me on these 4 problems. I don't know how to do them
Harman [31]
Question 84:
The given triangle is an isosceles triangle.
We have measure angle 2 = measure angle 3
We are given that angle 1 = 70°
We know that the sum of the interior angles of the triangle is 180.
This means that:
180 = angle 1 + angle 2 + angle 3
180 = 70 + angle 2 + angle 3
angle 2 + angle 3 = 110
Since both angles are equal, therefore:
measure angle 2 = 110/2 = 55°
We are given that:
measure angle 2 = x + 64
This means that:
x + 64 = 55
x = 55 - 64
x = -9

Question 85:
The given triangle is an isosceles triangle.
We have the two base angles are equal.
Since one of them is 30°, this means that the other is also 30°
We know that the sum of the interior angles of the triangle is 180.
This means that:
180 = angle 1 + angle 2 + angle 3
180 = 30 + angle 2 + 30
angle 2 = 120
We are given that:
measure angle 2 = 14x - 6
This means that:
14x - 6 = 120
14x = 126
x = 126/14
x = 9

Question 86:
The given triangle is an isosceles triangle.
We have the two base angles are equal.
Since one of the base angles is 40°
This means that the other one is also 40°
Therefore:
measure angle 2 = 40°
We are given that:
measure angle 2 = 47 + x
This means that:
47 + x = 40
x = 40 - 47
x = -7

Question 87:
The given triangle is an equilateral triangle. This means that all three interior angles are equal and each is measuring 60°.
Therefore:
measure angle 2 = 60°
We are given that:
measure angle 2 = x + 71
This means that:
x + 71 = 60
x = 60 - 71
x = -11

Hope this helps :)
8 0
3 years ago
3x-2y=-6 solve for y and graph
IRINA_888 [86]

Answer:

y=3/2x+3

Step-by-step explanation:

3x-2y=-6

-3x       -3x

-2y/-2 =-3x/-2 -6/-2

y=3x/2+3

4 0
3 years ago
Mr. Thompson is buying rulers for his class.
lord [1]

Answer:

D: 200 rulers for $30.00. You have quite a few choices! You may need to find out the percentage [%] of each first.

Step-by-step explanation:

A: 1 Ruler for $0.25

B: $0.30

C: $0.20

D: $0.15

4 0
3 years ago
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