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Bond [772]
3 years ago
7

Hal used the scale 1 inch = 6 feet for his scale model of the new school building. The actual dimensions of

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

5 inch high

20 inch wide

30 inch long

Step-by-step explanation:

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Anuta_ua [19.1K]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Here is a sketch of y=x^2+bx+c The curve intersects
atroni [7]

Answer:

y = 18  and  x = -2

Step-by-step explanation:

y = x^2+bx+c   To find the turning point, or vertex, of this parabola, we need to work out the values of the coefficients b and c. We are given two different solutions of the equation. First, (2, 0).  Second, (0, -14). So we have a value (-14) for c. We can substitute that into our first equation to find b. We can now plug in our values for b and c into the equation to get its standard form. To find the vertex, we can convert this equation to vertex form by completing the square. Thus, the vertex is (4.5, –6.25). We can confirm the solution graphically     Plugging in  (2,0) :

y=x2+bx+c  

0=(2)^2+b(2)+c  

y=4+2b+c  

-2b=4+c  

b=-2+2c  

Plugging in  (0,−14) :

y=x2+bx+c  

−14=(0)2+b(0)+c  

−16=0+b+c  

b=16−c  

Now that we have two equations isolated for  b , we can simply use substitution and solve for  c .   y=x2+bx+c  16 + 2 = y   y = 18  and  x = -2

4 0
2 years ago
Y = -2x2 + 10 y = -2x – 2
34kurt

Answer:

x = 6

y = - 14

Step-by-step explanation:

\left \{y=-2x2 + 10y} \atop {y=-2x -2}} \right.

  1. -2x × 2 + 10 = - 2x - 2
  2. x = 6
  3. y = -2 × 6 - 2 = - 14
4 0
3 years ago
Read 2 more answers
9^2 - (4) (2) (-6) what is the answer?
Rus_ich [418]

Answer:

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Step-by-step explanation:

pls heart and give brainliest much appreciated

4 0
3 years ago
Help marking brainly first awnser
solong [7]
Option as is correct hope this helped have a nice day
8 0
3 years ago
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