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3 years ago

Megan and Jason entered a bike marathon covering 10 miles.

Mathematics

1 answer:

Anna [14]3 years ago

7 0

Answer:

15 minutes

Step-by-step explanation:

in this case 1 hour 25 minutes is also equivalent to 75 minutes so 90 -75 would give you 15 minutes

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On Friday a bowling alley made $842.72 from Lane rentals in $412.38 from the concession stand.

Neko [114]

Answer:

Step-by-step explanation:

8 0

3 years ago

The probability that a male will be colorblind is .042. Find the probabilities that in a group of 53 men, the following are true

Dvinal [7]

Answer:

See below for answers and explanations

Step-by-step explanation:

$\displaystyle P(X=x)=\binom{n}{x}p^xq^{n-x}\\\\P(X=5)=\binom{53}{5}(0.042)^5(1-0.042)^{53-5}\\\\P(X=5)=\frac{53!}{(53-5)!*5!}(0.042)^5(0.958)^{48}\\\\P(X=5)\approx0.0478$

$P(X\leq5)=P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)\\\\P(X\leq5)=\binom{53}{1}(0.042)^1(1-0.042)^{53-1}+\binom{53}{2}(0.042)^2(1-0.042)^{53-2}+\binom{53}{3}(0.042)^3(1-0.042)^{53-3}+\binom{53}{4}(0.042)^4(1-0.042)^{53-4}+\binom{53}{1}(0.042)^5(1-0.042)^{53-5}\\\\P(X\leq5)\approx0.9767$

$\displaystyle P(X\geq 1)=1-P(X=0)\\\\P(X\geq1)=1-(1-0.042)^{53}\\\\P(X\geq1)\approx1-0.1029\\\\P(X\geq1)\approx0.8971$

6 0

2 years ago

Julio believes that the quotient of 6 ÷ 1/2 = 3

Hitman42 [59]

Answer:

Julio did 6/2. The correct answer is 12.

Step-by-step explanation:

6/1/2=6*2=12. Julio forgot to change the division into multiplication. Dividing is multiplying by it's reciprocal.

5 0

2 years ago

Read 2 more answers

PLEASE PLEASE HELP 25 POINTS I WILL MARK BRAINLIEST

Sidana [21]

Answer:

Step-by-step explanation:

(3, 9) (-3, 5)

0 is in the middle 7 is in the middle

for x: 3 2 1 0 -1 -2 -3 for y: 9 8 7 6 5

Thus, (0, 7) is the midpoint between (3, 9) and (-3, 5)

6 0

3 years ago

The relationship between a bacteria population p, in thousands, and time d, in days, since it was measured to be 1,000 can be re

Assoli18 [71]

d = log₂p represents a logarithmic function, The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

<h3>What is an exponential function?</h3>

An exponential function is in the form:

y = abˣ

Where a is the initial value of y and b is the multiplication factor.

Let p represent the bacteria population in thousand after d days.

Since each day, the bacteria population grows by a factor of 2, hence:

$p=2^d$

Hence, d = log₂p represents a logarithmic function

The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

Find out more on exponential function at: brainly.com/question/12940982

8 0

2 years ago