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OLga [1]
3 years ago
8

PLEASE ANWSER THIS QUESTION ASAP!!!

Mathematics
2 answers:
emmasim [6.3K]3 years ago
5 0

Answer:1 inch represents 3 feet

Step-by-step explanation:

Over [174]3 years ago
4 0

Answer:

1:4

Model : Actual Truck

Step-by-step explanation:

So I turned everything into inches.

Her dad's truck is 204 inches long, and the model is 51

so 204/51 = 4

The model in feet is 4.25

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A tunnel is in the shape of a parabola. The maximum height is 16 m and it is 16 m wide at the base, as shown below.
NeX [460]
Vertex at the origin and opening down → y=ax^2
Width: w=16
x=w/2→x=16/2→x=8
x=8, y=-16→y=ax^2→-16=a(8)^2→-16=a(64)→-16/64=a(64)/64→-1/4=a→a=-1/4

y=ax^2→y=-(1/4)x^2

7 m from the edge of the tunnel → x=w/2-7=8 m-7 m→x=1 m
x=1→y=-(1/4)x^2=-(1/4)(1)^2=-(1/4)(1)→y=-1/4

Vertical clearance: 16-1/4=16-0.25→Vertical clearance=15.75 m

Please, see the attached file.

Answer: Third option 15.75 m

3 0
3 years ago
Read 2 more answers
Find the solution to the following system using substitution or elimination: y = 3x + 2 y = -2x - 8 O A. (-5,-) OB. (-2,-4) O C.
mr Goodwill [35]

Answer:

B. (-2,-4)

Explanation

Given equations:

   y = 3x + 2

   y = -2x - 8

Solving both equations will yield the values of x and y;

Solution:

   y = 3x + 2    ----- (i)

   y = -2x - 8   ------ (ii)

Using substitution method, input equation i, into ii

    3x + 2 = -2x - 8

Collect like terms and solve;

     3x + 2x = -8 -2

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            x  = -2

Then put x = -2 into i, to find y

      y = (-2 x 3) + 2

       y = -6 + 2 = -4

So, the solution of the equation is B. (-2,-4)

6 0
3 years ago
Which expression can be used to find the volume of the sphere? 10 in. ​
julsineya [31]

Answer:

its the 3rd one

Step-by-step explanation:

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3 years ago
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777dan777 [17]

Answer:

idk I need the answer too

Step-by-step explanation:

:P

8 0
3 years ago
Jan studied this system of equations: {2x + 4y = 6 and x - 2y = 6. He found that another system of equations had the
solong [7]

Answer:

Because x-2y=6 is the same in both of them. 4x+8y=12 can be simplified to x-2y=6 if divided by 4

3 0
3 years ago
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