2 years ago

Evaluate the discriminant for x2-5x+4=0

Mathematics

1 answer:

FromTheMoon [43]2 years ago

8 0

9 is your answer, hope this helps

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Find the accumulated value of an investment of $20,000 for 7 years at an interest rate of 5.5% if the money is:

Amiraneli [1.4K]

Answer:

See below

Step-by-step explanation:

Given:

Investment P = $20000
Time t = 7 years
Interest rate r = 5.5% = 0.055

a. compounded semiannually, n = 2

$A = P*(1 + r/n)^{nt} = 20000(1+0.055/2)^{2*7} = 29239.88$

b. compounded quarterly, n = 4

$A = P*(1 + r/n)^{nt} = 20000(1+0.055/4)^{4*7} = 29315.30$

c. compounded monthly, n = 12

$A = P*(1 + r/n)^{nt} = 20000(1+0.055/12)^{12*7} = 29366.44$

d. compounded continuously

$A = Pe^{rt}=20000*e^{0.055*7}=29392.29$

5 0

2 years ago

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Let y=(3x + f(4 − x^2))^3. Find dy/dx for x=1, given that f(3)= -6 and f'(3)= 4

Shkiper50 [21]

Answer:

correct

Step-by-step explanation:

4 0

3 years ago

the ticket booth at a school play sells 140 adult tickets and 210 student tickets. find the ratio of adults to students write yo

julsineya [31]

ratio of adults to students can be written as a fraction

adult tickets / student tickets

140/210 can be simplified to 14/21

14/21 can be simplifed to 2/3

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3 years ago

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The slope of the line below is 2/5 and the y-intercept is 4 . What is the slope intercept equation of the line ?

Grace [21]

Y=2/5X+4 is the slope-intercept form.

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3 years ago

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(ASAP) Solye for n. 24 = 3(n – 5) n=

Paul [167]

Answer: can u check out the image cuz the answer is in the photo and hope this helps can u give me brainliest

Step-by-step explanation:

24=3(n-5)

Distribute.

24=3(n) + 3(-5)

24 = 3n -15

Add 15 to both sides.

39 = 3n

Divide both sides by 3.

n = 13.

I hope this helps!.

6 0

3 years ago