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Nataly_w [17]
3 years ago
6

On a final exam, Alex answered 21 out of 25 questions correctly. He

Mathematics
1 answer:
morpeh [17]3 years ago
4 0

Answer:

He needs to answer at least 20 questions correctly.

Step-by-step explanation:

You might be interested in
Please help thank you!
Verizon [17]

Answer:

18/(10-7)+2=8

(48/2)-4^2 +2*2=12

I hope you have a nice day!

3 0
3 years ago
How many km are equal to 3,400 m
Archy [21]
1 km = 1000 m

So 

x km = 3,400 m

that means 3.4 km would be equal to 3,400 m

your final answer is

\boxed{\bf{3.4~km}}
3 0
2 years ago
Help find the surface area of a cylinder with the height of 9 inches and base radius of 4
dybincka [34]

9514 1404 393

Answer:

  104π in² ≈ 326.7 in²

Step-by-step explanation:

Put the given numbers in the surface area formula for a cylinder.

  SA = 2πr(r +h)

  SA = 2π(4 in)(4 in +9 in) = 104π in² ≈ 326.7 in²

3 0
2 years ago
Read 2 more answers
Tom's stockbroker offers an investment that is compounded continuously at an annual interest rate of 3.7%. If Tom wants a return
Anettt [7]

Answer:

It'll take 38.3 years to obtain the desired return of $25,000.

Step-by-step explanation:

In order to solve a continuosly coumponded interest question we need to apply the correct formula that is given bellow:

M = C*e^(r*t)

Where M is the final value, C is the initial value, r is the interest rate and t is the time at which the money was applied. Since he wants an return of $25,000 his final value must be the sum of the initial value with the desired return. So we have:

(25000 + 8000) = 8000*e^(0.037*t)

33000 = 8000*e^(0.037*t)

e^(0.037*t) = 33000/8000

e^(0.037*t) = 4.125

ln[e^(0.037*t)] = ln(4.125)

t = ln(4.125)/(0.037)

t = 1.4171/0.037 = 38.2991

t = 38.3 years

7 0
3 years ago
Divide a salad with six friends, 1/3 is missing, how much does each person get?
Talja [164]
Each friend gets 1/9. If you have 1 salad and 1/3 is missing that leaves you with 2/3, you have 6 friends and I am assuming they each get an equal amount so 2/3 equals 4/6, 4/6 equals 6/9, there are 6 people, they each get 1/9.
4 0
3 years ago
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