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3 years ago

2. A bicycle trail is 65 miles long. Rashid

Mathematics

2 answers:

Radda [10]3 years ago

7 0

He need 35 miles more

Tresset [83]3 years ago

5 0

Answer:

35 more miles

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The population of a town with a 20162016 population of 87 comma 00087,000 grows at a rate of 1.91.9% per year. a. Find the rate

SCORPION-xisa [38]

Answer:

Given,

The initial population, P = 87,000,

Annual rate of increasing, r = 1.9 %,

a) Thus, the population after t years,

$A=P(1+\frac{r}{100})^t$

$A=87000(1+\frac{1.9}{100})^{t}$

$=87000(1+0.019)^t$

$=87000(1.019)^t$

$87000(1.019)^t=87000e^{kt}$

Where, k is the rate constant,

By comparing,

$\implies k=log(1.019)=0.00817418400643\approx 0.00817$

Hence, the approximate value of k is 0.00817.

And, the exponential growth function would be,

$A=87000e^{0.00817t}$

b) If A = 145,000,

$145000=87000(1.019)^t$

By using graphing calculator,

We get,

$t=27.14\approx 27$

The year after 27 years from 2016 is 2043.

Hence, in 2043 the population reach 145,000.

6 0

4 years ago

25 Points!!! Will give Brainliest!!! Help please!!

Xelga [282]

Answer:

m<0 = 50

Step-by-step explanation:

The opposite angles in an isosceles trapezoid are equal, so <T = <A

and <B = <O

We know the sum of all 4 angles has to be 360 since it is a quadrilateral

<T+<A + < B + <O = 360

Substituting what we know, and what we want to know

<T+ <T + <O <+O = 360

Combining like terms

2<T + 2 <0 = 360

2( 130) + 2<0 = 360

260 + 2< O = 360

Subtract 260 from each side

260-260 + 2< O = 360-260

2<O = 100

Divide by 2

2/2<O = 100/2

<0 = 50

6 0

3 years ago

Assume that the probability of having sickle cell anemia is 0.15 and the probability of being African-American is 0.45 in a give

irina1246 [14]

Answer:

the probability of having sickle cell anemia given that you are African-American is P( B|A) =0.288

Step-by-step explanation:

Using Bayes's theorem

P( B|A) = P( A∩B)/P(A)

where P( B|A) = probability of the event B knowing that A happened , P( A∩B) = probability that A and B happen (joint probability of A and B) , P(A) = probability of event A

if B= probability of having sickle cell anemia and A= probability of being African-American

then

P( A∩B) = 0.13

P(A) = 0.45

then

P( B|A) = P( A∩B)/P(A) = 0.13/0.45 = 0.288

P( B|A) =0.288

5 0

4 years ago

About how much more grape juice and orange juice is used in the punch

agasfer [191]

3 1/3 --> 3 8/24 --> 80/24

6 1/2 --> 6 12/24 --> 156/24

4 1/8 --> 4 3/24 --> 99/24

1 1/4 --> 1 6/24 --> 30/24

About how much more grape juice and orange juice is used in the punch

80/24+156/24 = 59/6 or 236/24

99/24+30/24= 43/8 or 129/24

236/24-129/24= 107/24 cups OR 4.458 cups OR 4 11/24 cups

About how much more grape juice than orange juice is used in the punch

3 1/3 --> 3 8/24 --> 80/24

6 1/2 --> 6 12/24 --> 156/24

approximately -3

hope this helps!

6 0

3 years ago

Fir a walk-a-thon a sponsor to give a flat tree of 5$ plus 2$ for every mile m you walk

nikklg [1K]

Not really sure what you’re wanting here. If you need the formula it is 2 times the number of miles + 5 (2n+5)

8 0

3 years ago