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bogdanovich [222]
3 years ago
15

A bridge in the shape of a parabolic arch is modelled by this function (see pic).

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0

Answer:

(C) 25,35 and 175,35

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If you answer I will mark you Brainliest!
Olin [163]

Answer:

divide the figure into two parts.

area of triangle = 1/2×base×height

area of triangle = 1/2×3×3

area pf triangle = 4.5 units²

area of square = side²

area of square = 3²

area of square = 9unit²

5 0
3 years ago
Read 2 more answers
If anyone can do this for me step by step i will give you 30 points please help me out
Artist 52 [7]

Answer:

after 10 months

Step-by-step explanation:

Let x be the number of months and y be the amount they still owe.

Sin Ian borrows $1000 from his parents, then the y-intercept b= 1000 since he owes $1000 when x = 0. He pays them back $60 each month The slope is then m = -60 . Substituting in b = 1000 and m = -60 into the slope-intercept form of a line then gives y= mx + b=-60x +1000.

Sin Ken borrows $600 from his parents, then the y-intercept b = 600 since he owes $600 When x= 0. He pays them back $20 per month so the amount he owes decreases $20 each month. The slope is then m = -20 . Substituting in

b= 600 and m = -20 into the slope-intercept form then gives y = mx +b = -20x + 600.

They will owe the same amount when they have the same y-coordinate. Therefore -60x+ 1000= y= -20x+600. Solve this equation for x:

-60x+ 1000 = -20x+ 600

1000 = 40x+ 600

400 = 40x

10=x

They will then owe the same amount after 10 months.

5 0
3 years ago
Please help, i will give brainliest
Galina-37 [17]

Answer:

13. (E) all of the above 14. (E) the diagonals bisect the angles at the vertices

Step-by-step explanation:

3 0
3 years ago
Using the following​ diagram, solve for x.<br> someone please help, its urgent
posledela

Answer:

its c and use th e thererum

4 0
2 years ago
Can someone help, I need to pass. Find the value of k
Oduvanchick [21]

Answer:

D

Step-by-step explanation:

45+62=107

180-107=73

8 0
3 years ago
Read 2 more answers
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