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cricket20 [7]
2 years ago
8

Simplify the expression: –3(9 − x) =

Mathematics
1 answer:
steposvetlana [31]2 years ago
6 0

Answer:

Expand  -3(9-x): -27 + 3x

Step-by-step explanation:

-3(9-x)

Apply the distributive law: a(b-c)=ab-ac

a = -3, b=9, c=x

=-3*9-(-3)x

Apply minus - plus rules:

-(-a)=a

= -3*9+3x

Multiply the numbers: 3 * 9 = 27

=-27+3x

Hope this helps! If so, may I get Brainliest and a Thanks?

Thank you, have a good one! =)

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If anyone knows please help me
pishuonlain [190]

Answer:

Step-by-step explanation:

Standard form of a circle is given by,

(x - a)² + (y - b)² = r²

Here, (a, b) is the center and 'r' is the radius of the circle.

For a circle having center (8, -4) and radius r = 1

Equation of the circle will be,

(x - 8)² + (y + 4)² = 1²

(x - 8)² + (y + 4)² = 1

Option (1) is the answer.

Question (2)

Circle with the center (-1, 0) and a point (2, -4) on it,

Radius of the circle = Distance between the center and the given point on                                         circumference

                                = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

                                = \sqrt{(-1-2)^2+(0+4)^2}

                                = \sqrt{9+16}

                                = 5

Therefore, equation of the circle will be,

(x + 1)² + (y - 0)² = 5²

(x + 1)² + y² = 25

8 0
2 years ago
Danielle has $3 in quarters and $2 in dimes in her pocket. If she randomly selects one coin out of her
sattari [20]
The answer is C. 3/5
6 0
2 years ago
Another one: (12 - 7.5) - 7
mixas84 [53]

Answer:

-2.5

Step-by-step explanation:

Plugged into calculator

5 0
3 years ago
41.3+0.7 adding and subtracting decimals
viktelen [127]
The answer would be 42
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(Sorry if wrong! Mark brainiest if right!)
8 0
2 years ago
Read 2 more answers
8.
LekaFEV [45]
If 2 inches equal 40 miles, 4 inches would equal 80. You don’t have to do anything else because you can eliminate all the other answers. The only one it could be is B. 82.5 miles.
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3 years ago
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