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3 years ago

Mattie uses the discriminant to determine the number of zeros the q

Mathematics

1 answer:

enot [183]3 years ago

3 0

Answer:for ax^2+bx+c=0 the discriminant is b^2-4ac

there are 3 basic cases of what happens for different discriminants

1. if the discriminant is less than 0, then there are no real zeroes

2. if the discriminant is 0, then it has 1 zero

3. if the discriminant is greater than 0, it has 2 zeroes

so given

0=3x^2-7x+4

a=3,b=-7,c=4

thus the discriminant is (-7)^2-4(3)(4)=49-48=1

the discriminant is 1. 1 is positive, thus the equation has 2 zeroes because the discriminant is greater than 0

the answer is the equation has two zeroes because the discriminant is greater than 0

Step-by-step explanation:

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ABCD – FECG what does (x) =

Helen [10]

9514 1404 393

Answer:

x = 12

Step-by-step explanation:

Sides of similar figures are proportional, so ...

AB/FE = BC/EC

x/6 = 10/5

x = 6·(10/5) . . . multiply by 6

x = 12

5 0

3 years ago

Someone help need this to pass last question for today!

Bezzdna [24]

Answer: Reflection=simply flipping an object across a line without changing its size or shape. While Translation just slide a figure in any direction without changing its size, shape or orientation.

Hopes that helps have a blessing day/night :)

8 0

2 years ago

David made a scale drawing of a mural he is going to paint. He used a scale of 1 cm=4ft. If the actual mural will be 16 feet lon

VikaD [51]

Answer:

4 cm

Step-by-step explanation:

we know that

The scale drawing is

$\frac{1}{4}\ \frac{cm}{ft}$

That means ----> 1 cm in the drawing represent 4 ft in the mural

To find out the dimensions in the drawing, multiply the actual dimension by the scale drawing factor

$(16\ ft)(\frac{1}{4}\ \frac{cm}{ft})=4\ cm$

3 0

3 years ago

Which polynomial is a difference of two squares? x2 − 16 x2 + 16 x2 − 8 x2 + 8

AnnZ [28]

X2 - 16, is the answer. The first one.

x^2 - 16 = (x)^2 - 4^2, difference of two squares :)

8 0

3 years ago

Read 2 more answers

You purchase a car worth $25077 and make a down payment of $3560. You intend to repay the balance of the car with month end car

zubka84 [21]

Answer:

value of buyout is $4185.74

Step-by-step explanation:

given data

car worth = $25077

down payment = $3560

monthly payment = $336 = 336 × 6 = $2016 per semi annually

time = 5 year = 10 half yearly

rate = 4.04 %

to find out

value of final buyout

solution

we know here loan amount will be 25077 - 3560 = $21517

and we find present value first by formula that is

present value = $\frac{amount(1+r)^t - 1}{r (1+r)^t}$

put here t = 10 and r = $\frac{4.04}{200}$

present value = $\frac{2016(1+\frac{4.04}{200})^10 - 1}{r (1+\frac{4.04}{200})^10}$

present value = 18089.96

loan unpaid amount is here

loan unpaid amount = 21517 - 18089.96

loan unpaid amount = $3427.04

now we calculate value of buyout

that is express as

amount = principal × $(1+r)^{t}$

amount = 3427.04 × $(1+\frac{4.04}{200})^{10}$

amount = 4185.74

so value of buyout is $4185.74

7 0

3 years ago