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Naily [24]
3 years ago
14

Simplify the expression. -2(7-12)

Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0
-2(7-12)=
-2(-5)=
10 = Answer
mylen [45]3 years ago
6 0
Answer: 10
7 minus 12 is negative 5. Negative 2 times negative 5 is 10. 
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The arcade has a floor that is 120 feet by 75 feet. A scale drawing of the floor on grid paper uses a scale of 1 in: 5. Feet. Wh
ArbitrLikvidat [17]

Answer:

2 feet by 1.25 feet

Step-by-step explanation:

The arcade floor has dimensions 120 ft by 75 ft.

The scale of the drawing on grid paper is 1 in : 5 feet. This is a reduced scale. This means that the size of the arcade floor was reduced in the drawing.

Let us simply the ratio 1 in : 5 feet.

1 foot = 12 inches

=> 5 feet =  5 * 12 = 60 inches

The ratio can be rewritten as 1 in : 60 in = 1 : 60.

Hence, multiply the individual dimensions of the arcade floor by \frac{1}{60}.

120 feet will be:

120 *  \frac{1}{60} = 2 feet

75 feet will be:

75 *  \frac{1}{60} = 1.25 feet

Therefore, the dimensions of the scale drawing are 2 feet by 1.25 feet.

7 0
3 years ago
A tennis ball bounces based on this equation y = x2 - x+2. A dog jumps based on this equation y=2x.
valentina_108 [34]

Answer: when the equations are equal, that is when  x = 1 or x = 2

Step-by-step explanation:

The dog will receive the ball , when both equations intercept , that is , when both equations are equal. This implies :

x^{2} - x + 2 = 2x

x^{2} - x - 2x + 2 = 0

x(x-1) - 2 (x - 1 ) = 0

(x - 1 ) ( x - 2 ) =0

Therefore , x = 1 or x = 2

5 0
3 years ago
Jean transformed a point by using the rule (x,y) (x-6, y+8). The image point is (–4, 1). Which point is the pre-image?
lubasha [3.4K]
For this case we have the following transformation:
 (x, y) (x-6, y + 8)

 Using the transformation we have that the image is:
 (-4, 1)

 Therefore, making use of this information, we can find the coordinates of the pre-image
 We have then:
 x-6 = -4

 From here, we clear x:
 x = -4 + 6

x = 2
 On the other hand we have:
 y + 8 = 1

 From here, we clear y:
 y = 1-8

y = -7
 The coordinates of the pre-image is:
 (x, y) = (2, -7)

 Answer:
 
A point that is the pre-image is:
 
(x, y) = (2, -7)
3 0
4 years ago
Read 2 more answers
What is the totale of the recta<br> square meter
yan [13]

Answer:

Step-by-step explanation:

C.

7 0
2 years ago
Mark is building a custom wooden frame around his flower bed. The length of the frame is 5.45 feet ,and the width of the frame i
LUCKY_DIMON [66]

Answer:

17.84875

Step-by-step explanation:

5.45 x 3.275 = 17.84875

8 0
3 years ago
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