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marysya [2.9K]
2 years ago
5

In which of the expressions below will x = 3? Select all that apply.

Mathematics
1 answer:
Westkost [7]2 years ago
7 0

Answer: b

Step-by-step explanation: 19 x 3 = 57 & 12 x 3= 36 so subtract 57 and 36 that’s going to give you 21 & 21 plus 6 is 27

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Which is a simplified form of the expression -4(3r – 2) – 2(r + 1)?
Delicious77 [7]

Answer:

2 (3 - 7 r)

Step-by-step explanation:

Simplify the following:

-4 (3 r - 2) - 2 (r + 1)

-4 (3 r - 2) = 8 - 12 r:

8 - 12 r - 2 (r + 1)

-2 (r + 1) = -2 r - 2:

-12 r + -2 r - 2 + 8

Grouping like terms, -2 r - 12 r - 2 + 8 = (8 - 2) + (-12 r - 2 r):

(8 - 2) + (-12 r - 2 r)

-12 r - 2 r = -14 r:

-14 r + (8 - 2)

8 - 2 = 6:

6 - 14 r

Factor 2 out of 6 - 14 r:

Answer: 2 (3 - 7 r)

6 0
3 years ago
A rotating lawn sprinkler sprays water in a circular area of grass, as shown in the picture. The diameter of the circular area o
ratelena [41]

Answer:

The area the sprinkler sprays with water is 201.06 square feet.

Step-by-step explanation:

Step 1; It is given that the diameter of the circular area of grass that the sprinkler sprays with water is 16 feet. The diameter of a circle is equal twice its radius. So we divide the diameter by 2 to get its radius.

Radius of the circle = Diameter of the circle / 2 = 16 feet / 2 = 8 feet.

Step 2; The area of any given circle is π times the square of the radius. The radius of this circle is equal to 8 feet.

Area of the circle = π × r² = 3.1415 × 8 feet = 201.06 square feet

7 0
3 years ago
Read 2 more answers
What number subtracted from 16 is 6
dusya [7]
The answer to your question would be 10.


Explanation: 16-10=6
8 0
2 years ago
Read 2 more answers
F(x)1/x please help me
koban [17]

Answer:

You are going to take the shape and flip if across the x Axis, reversing it essentially. then you will move it up 4, so of it is a square with one corner at (2,3) it will go to (5, 7) and all the other point will move together if I remember right. I last did this 3 years ago, I hope I help, next time show the whole graph with the number and I would have put a visual to show you the answer. Good luck

8 0
2 years ago
The measures of the sides of a triangle are 2x + 3, 8x – 4, and x^2 Write an expression that describes the perimeter of the tria
lawyer [7]


P = 2x+3+8x-4+x² = x² +10x-1
3 0
3 years ago
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