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FrozenT [24]
3 years ago
5

Which quadratic function in standard form has the values a = –3.5, b = 2.7, and c = –8.2?

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

f(x)=-3.5x²+2.7x - 8.2

Step-by-step explanation:

We have given:

a = -3.5 , b=2.7 and c= -8.2

We have to write  quadratic function in standard form.

We know that the standard form of quadratic function is:

f(x)=ax²+bx+c

where a, b, and c being constants, or numerical coefficients, and x is an unknown variable.

We have the values a= -3.5 , b = 2.7 and c = -8.2

Substitute the values  in the standard form:

f(x)=-3.5x²+2.7x - 8.2

Therefore the answer is: f(x)=-3.5x²+2.7x - 8.2 ....

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Answer:

x = 23

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Jeans are reduced from 28.00 to 18.20 during a sale at a department store. What percentage was the original price reduced?
Natali [406]

Answer:

The original price was reduced 35%

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we know that

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6 0
2 years ago
Given: Triangle ABC, mmBC=24 cm, line segment AL- < bisector
Furkat [3]

The value of line AL is 21. 51cm

<h3>How to determine the length</h3>

To find line AL,

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Sin α = opposite/ hypotenuse to find line AB

Sin 90 = x/ 24

1 = x/24

Cross multiply

x = 24cm

Now, let's find line AC

Sin angle B = line AC/24

Note that to find angle B

angle A + angle B + angle C = 180

But angle B = 2 Angle A

x + 2x + 90 = 180

3x + 90 = 180

3x = 180-90

x = 30°

Angle B = 2 × 30 = 60°

Sin 60 = x/ 24

0. 8660 = x/24

Cross multiply

x = 24 × 0. 8660

x = 20. 78cm

We have the angle of A  in the given triangle to be divide into two by the bisector, angle A = 15°

To find line AL, we use

Cos = adjacent/ line AL

Cos 15 = 20. 78/ line AL

Line AL = 20. 78/ cos 15

Line AL = 20. 78 / 0. 9659

Line AL = 21. 51 cm

Thus, the value of line AL is 21. 51cm

Learn more about trigonometry ratio here:

brainly.com/question/24349828

#SPJ1

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1 year ago
which property is BEST to use when combining 3/5 + 1/4 + 2/5? A) distributive property B) identity property of addition C) addit
Lana71 [14]

Answer:

D Community property of addition

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