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Vera_Pavlovna [14]
4 years ago
5

When solving the equation 4(3x^2 + 2) - 9 = 8x^2 + 7, Emily wrote

Mathematics
1 answer:
Alenkinab [10]4 years ago
4 0
1 addition property of equality

Since there the -9 disappeared on the left and the +7 changed by 9 to a +16, 9 must have been added to both sides of the equation, and the addition property of equality states that the equation remains true when the same thing is added to both sides.
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Pls help me i’m so stuck
vladimir1956 [14]

Answer:

Step-by-step explanation:

If a point (x, y) is reflected across y = -x, coordinates of the image point will be,

(x, y)→ (-y, -x)

Following this rule,

Vertices of the triangle will be,

(3, 1) → (-1, -3)

(3, -2) → (2, -3)

(6, -3) → (3, -6)

Therefore, image of the given triangle A will be,

(-1, -3), (2, -3) and (3, -6)

8 0
3 years ago
Whats the perimeter of the figure below?
baherus [9]

Answer:

44

Step-by-step explanation:

2+9+11+2+9+11

7 0
3 years ago
Read 2 more answers
(NEED HELP! WILL RATE 5 STARS!)
vitfil [10]

Answer:I think it's 1/61

Step-by-step explanation:If I am correct plz don't forget to thank me...

3 0
3 years ago
The radius of a semicircle is 2 feet. What is the semicircle's diameter?
fomenos

Answer:

11/7 feet

Step-by-step explanation:

Perimeter of a circle = pi

Semicircle would be 1/2 of pi

1/2 × 22/7 × 1

You must divide by one to get the value of 1/2

11/7 is the answer

8 0
3 years ago
What is the exact volume of the cylinder? height 9 in. width 6 in.
boyakko [2]
Volume equals pi times r squared times height So it would be 81pi in cubed
3 0
3 years ago
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