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densk [106]
3 years ago
14

Complete the following equality. 4 days = hours

Mathematics
2 answers:
Kisachek [45]3 years ago
6 0

Day: 4

Hour: 96

Days Hours

1 Day 24 Hours

2 Days 48 Hours

3 Days 72 Hours

4 Days 96 Hours

Levart [38]3 years ago
5 0

Answer:

96 hours

Step-by-step explanation:

each day has 24 hours in one day. If you are trying to find the number of hours in a set number of days, you multiply the number of days by 24.

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Please help with theses ? I’m kinda stuck on Algebra ll B. Anybody good on Algebra ?
pentagon [3]

Answer:

answer is b juicy how to do it

8 0
3 years ago
The Pacific halibut fishery has been modeled by the differential equation dy dt = ky 1 − y K where y(t) is the biomass (the tota
Dafna1 [17]

Answer:

a. The biomass weighs 2.30 * 10^7 kg after a year

b. It'll take 2.56 years to get to 4*10^7kg

Step-by-step explanation:

a.

k = 0.78,K = 6E7 kg

Given

dy/dt = ky(1- y/K)

Make ky dt the subject of formula

ky dt = dy/(1-y/K) --- make k dt the subject of formula

k dt = dy/(y(1-y/K))

k dt = K dy / y(K-y)

k dt = ((1/y) + (1/(K-y)))dy ---- integrate both sides

kt + c = ln(y/(K-y))

Ce^(kt) = y/(K-y)

Substitute the values of k and K

Ce^(0.78t) = y/(6*10^7 - y) ----- (1)

Given that y(0) = 2 * 10^7kg

(1) becomes

Ce^(0.78*0) = (2 * 10^7)/(6*10^7 - 2*10^7)

Ce° = (2*10^7)/(4*10^7

C = 2/7

Substitute 2/7 for C in (1)

2/7e^0.78t = y/(6*10^7 - y) ---(2)

We're to find the biomass a year later

So, t = 1

2/7e^0.78 = y/(6*10^7 - y)

0.62 = y/(6*10^7 - y)

y = 0.62(6*10^7 - y)

y = 0.62*6*10^7 - 0.62y

y + 0.62y = 0.62*6*10^7

1.62y = 0.62*6*10^7

1.62y = 3.72 * 10^7

y = 2.30 * 10^7kg.

Hence, the biomass weighs 2.30 * 10^7 kg after a year

b.

Here, we're to calculate the time it'll take the biomass to get to 4*10^7 kg

Substitute 4*10^7 for y in (2)

2/7e^0.78t = 4*10^7/(6*10^7 - 4*10^7)

2/7e^0.78t = 4*10^7/2*10^7

2/7e^0.78t = 2

e^0.78t = (2*7)/2

e^0.78t = 2

t = 2 * 1/0.78

t = 2.56 years

Hence, it'll take 2.56 years to get to 4*10^7kg

8 0
3 years ago
Consider this equation: 2x + 2 = 11 - x
77julia77 [94]
Addition bc. you need adding to both sides x and will get this result of 3x+2 = 11

hope helped 
4 0
3 years ago
Read 2 more answers
Explain your work !!!!<br> What is 17^3<br><br> A. 20<br> B. 4913<br> C. 51<br> D. 306
Travka [436]

A number raised to an exponent is that number multiplied by itself that number of times.

17^3 = 17 x 17 x 17 = 4913

The answer is B.

4 0
3 years ago
Read 2 more answers
F(x) = x²+1<br> What is f(f(x))?
Arte-miy333 [17]

Answer:

f(f(x)) = x⁴ + 2x² + 2

Step-by-step explanation:

if f(x) = x² + 1, then f(f(x)) is equal to:

f(x)² + 1

= (x² + 1)² + 1

= x⁴ + 2x² + 1 + 1

= x⁴ + 2x² + 2

7 0
2 years ago
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