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Vladimir [108]
3 years ago
12

In a trapezoid ABCD with legs AB and CD , the diagonals intersect each other at point O.

Mathematics
1 answer:
blondinia [14]3 years ago
3 0
Where are the choices??
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d) What are the values for coefficients a, b, and c in the quadratic equation for Daredevil Danny’s practice jump? (5 points)
SIZIF [17.4K]

Answer:

a = -0.32

b = 16

c = - 168

Step-by-step explanation:

In the figure attached, the quadratic function is shown. We can model it as follows:

y = a*(x - x1)*(x - x2)

where (x1, 0) and (x2, 0) are its roots

From the picture, roots are (15, 0) and (35, 0), replacing them into the equation:

y = a*(x - 15)*(x - 35)

and the vertex is at (25,32), replacing into the equation:

32 = a*(25 - 15)*(25 - 35)

32 = a*(-100)

a = 32/(-100)

a = -0.32

Applying distributive property:

y = -0.32*(x - 15)*(x - 35)

y = -0.32*(x² - 35x - 15x + 525)

y = -0.32x² + 16x - 168

which corresponds to the general form:

y = ax² + bx + c

3 0
3 years ago
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A customer pays $1,100 in state taxes on a newly purchased car. What is the value of the car if state taxes are 8.9% of the valu
Ganezh [65]
The taxes are figured as follows:  0.089(value of car)

Here the taxes are 0.089(value of car) = $1100.

Divide both sides of this equation by 0.089 to determine the value of the car.

value of car = $12359.55, or approx $12360.
8 0
3 years ago
Which function described as the arithmetic sequence below 1,-2,-5,-8,-11
motikmotik

Answer:

-3 it subtracts if you take 1and go back 3 times you get -3 same. for negative -5 back -3 is -8

Step-by-step explanation:

5 0
3 years ago
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In hear how do you see how many points do i have?
ankoles [38]
Go to your profile and you should see it
3 0
3 years ago
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Kayden brought 9 packs of paper for $27 how much will you pay for 11 packs of paper​
zhuklara [117]

Answer: $33

Step-by-step explanation: Divide 27/9 which is $3

-so you pay $3 for each pack

-then to find how much you need to pay for 11 packs you just multiply 11*3=33

5 0
3 years ago
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