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Irina18 [472]
3 years ago
15

A tectonic plate in earth's crust moves at a constant rate of 4 centimeters per year. In a different part of the world, another

tectonic plate moves at a constant rate of 30 centimeters in ten years. Is this a proportional relationship?​ please help
Mathematics
1 answer:
prohojiy [21]3 years ago
4 0

Answer:

no

Step-by-step explanation:

if it is proportional it will equal to 4 x 10= 40cm

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You manage a risky portfolio with an expected rate of return of 18% and a standard deviation of 28%. The T-bill rate is 8%. Your
Fofino [41]

Answer:

y = 0.80

Step-by-step explanation:

Given:

- The expected rate of return for risky portfolio E(r_p) = 0.18

- The T-bill rate is r_f = 0.08

Find:

Investing proportion y of the total investment budget so that the overall portfolio will have an expected rate of return of 16%.

What is the proportion y?

Solution:

- The proportion y is a fraction of expected risky portfolio and the left-over for the T-bill compliance. Usually we see a major proportion is for risky portfolio as follows:

                                     E(r_c) = y*E(r_p) + (1 - y)*r_f

                                     y*E(r_p) + (1 - y)*r_f = 0.16

- Re-arrange for proportion y:

                                     y = ( 0.16 - r_f ) / (E(r_p) - r_f)

- Plug in values:

                                    y = ( 0.16 - 0.08 ) / (0.18 - 0.08)

                                    y = 0.80

- Hence, we see that 80% of the total investment budget becomes a part of risky portfolio returns.                                    

               

4 0
3 years ago
A can of corn is shaped like a cylinder. The radius of the can is 5 inches and the height of the can is 8 inches. Which measurem
emmainna [20.7K]

Answer:

B) 628.32 cm cubed

Step-by-step explanation:

we know the formula to find the volume of a cylinder is π*r^2*h

where r is the radius and h is the height.

the equation would look like this

π*5^2*8

π*25*8

π*200

628.32 cm

6 0
3 years ago
Read 2 more answers
HAVING BAD DAY HELP
ElenaW [278]
12s, you don’t have a value for s, so the problem can’t be fully solved but if you did you would multiply 12 by her speed

Hope this helps
8 0
3 years ago
Read 2 more answers
Brainliest + Points
bagirrra123 [75]

(5.5 \times 75 \\

maybe u had to multiply the rate and monthly payment

6 0
3 years ago
Please help and show work​
melisa1 [442]

Answer:

first one is simnple cross multiply and divide

12*7=4x

84=4x

x=21

2nd same process but more steps

7x=5(x+8)

7x=5x+40

7x-5x=40

2x=40

x=20

Step-by-step explanation:

4 0
3 years ago
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