2 years ago

Find the volume and surface area of the earth if its circumference is 40 000 km

Mathematics

1 answer:

inn [45]2 years ago

8 0

Answer:

volume = 3.24× 10 ∧12, SA = 5.09 × 10 ∧8

Step-by-step explanation:

Check attachment

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Lorraine and her family went to the beach for 4 hours on Sunday. They left the beach at 4:20 P.M. What time did they arrive at t

Airida [17]

ok so take 4:20 pm and subtract 4 hrs from it so they left at 12: 20 pm

hope this helps :)

3 0

2 years ago

Please help me answer this question.

Alex787 [66]

1. Change x = 4t into x = 3t

$4t\cdot\frac{3}{4}=3t$ so

$y=(\frac{3}{4}t)^2-1=\frac{9}{16}t^2-1$

Answer A and D are wrong.

2. Change x = 4t into x = 2t

$4t\cdot\frac{1}{2}=2t$ and

$y=(\frac{1}{2}t)^2-1=\frac{t^2}{4}-1$

Answer b is correct.

3. Change x = 4t into x = 8t

$4t\cdot2=8t$ and

$y=(2t)^2-1=4t^2-1$

Answer C. is correct, E. is wrong.

7 0

2 years ago

If Josh invests $500 in a 5-year fixed interest savings bond that pays 5% per annum, how much will his entire investment be wort

gizmo_the_mogwai [7]

Answer:

$638.14

Step-by-step explanation:

Our equation is $p*(1+x)^{t}$ , with p being the starting amount, x being the interest rate, and t being the time. Plugging our variables in, we get