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sp2606 [1]
2 years ago
11

Mark is building a scale model of his car as shown in the diagram. The actual car has a height of 10 feet and the model has a he

ight of 1 foot at the same place.A. What is the actual length of the car?
Mathematics
1 answer:
malfutka [58]2 years ago
6 0

Answer:

A- 12.5

Step-by-step explanation:

(I used the formula a.bc X de = f X g = ft of car)

1.25x10=12.5X1=12.5ft

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Answer:

x = -1, y = 2 and z = 1

Step-by-step explanation:

The given system of equations are :

2x - y + 3z= -1  ....(1)

x + 2y - 4z = -1  ......(2)

y – 2z = 0  .....(3)

Equation (3) can be written as :

y = 2z

Use y = 2z in equation (2)

x + 2(2z) - 4z = -1

x + 4z - 4z = -1

x = -1

Put the value of x in equation (1) :

-2 -y +3z = -1

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Adding equation (3) and (4)

y-2z+(-y+3z)=1

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Now put z = 1 in equation (4)

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y = 2

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6 0
3 years ago
What is the length of the hypotenuse for a right triangle with legs of length 9 and 40? A) 41 B) 43 C) 45 D) 47
Katena32 [7]

Answer:

A) 41

Step-by-step explanation:

Let the hypotenuse be denoted by h

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h =   \sqrt{ {(40)}^{2}  +  {(9)}^{2} }

h =  \sqrt{1600 + 81}  =  \sqrt{1681}

h = 41

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