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bagirrra123 [75]
3 years ago
13

Select the correct answer.

Mathematics
1 answer:
shtirl [24]3 years ago
5 0

Answer:

145 . this is because angles on a straight line add up to 180 degrees

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Will a truck that is 10 feet wide carrying a load that reaches 12 feet above the ground clear the semielliptical arch on the one
beks73 [17]

Figure is missing, so i have attached it.

Answer:

it will clear the arch because the height of the archway of the bridge 5 feet from the center is approximately 12.76 ft

Step-by-step explanation:

The standard form of equation of an ellipse is;

x²/a² + y²/b² = 1

From the figure in the image attached, we can see that the radius is; a = 52/2 = 26 ft

While the value of b = 13 ft

Thus;

x²/26² + y²/13² = 1

x²/676 + y²/169 = 1

We want to find the height of the archway of the bridge 5 feet from the center.

Thus, we will plug in 5 for x to get;

5²/676 + y²/169 = 1

(25/676) + (y²/169) = 1

Multiply through by 676 to get;

25 + 4y² = 676

4y² = 676 - 25

y² = 651/4

y² = 162.75

y = 12.76 ft

Thus height of the truck is 12 ft and so it will clear the arch because the height of the archway of the bridge 5 feet from the center is approximately 12.76 ft

3 0
2 years ago
3х + 9y - 8x - 2y +7​
Sonja [21]

Answer:

-5x+7y+7

Step-by-step explanation:

3х + 9y - 8x - 2y +7​ can be written like the equation below to help solve it

3x-8x+9y-2y+7

=-5x+7y+7

7 0
2 years ago
Graph the image of the given triangle under a dilation with a scale factor of 14 and center of dilation ​ (0, 0) ​ . To graph th
DochEvi [55]

Answer:

the begging explanation

Step-by-step explanation:

hope this helped

5 0
3 years ago
Trampoline Park has an admission fee, plus an hourly fee of $4.50. What is the initial value?
anzhelika [568]

Answer:

c?

Step-by-step explanation:

6 0
2 years ago
Help fast ASAP for 10 points
Zina [86]

Answer:

PQRS → P'Q'R'S'

Hope this helps you.

8 0
3 years ago
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