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3 years ago

A rectangular parking lot has an area of 682 square yards.The lot is 22 yards wide.What is the length of the parking lot?

Mathematics

1 answer:

postnew [5]3 years ago

3 0

Answer:

Area of rectangle with length 'l' and width 'w' = $l \times w$

The area of rectangular parking lot = 682 square yards.

The width of the rectangular parking lot = 22 yards

Let the length of the rectangular parking lot be 'x' yards.

Since, area of rectangular parking lot = $l \times w$

$682 = x \times 22$

So, $x=\frac{682}{22}$

x=31 yards

Therefore, the length of the rectangular parking lot is 31 yards.

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United Blood Services is a blood bank that serves more than 500 hospitals in 18 states. According to their website, a person wit

Anna11 [10]

Answer:

a) 0.06 = 6% probability that a person has both type O blood and the Rh- factor.

b) 0.94 = 94% probability that a person does NOT have both type O blood and the Rh- factor.

Step-by-step explanation:

I am going to solve this question treating these events as Venn probabilities.

I am going to say that:

Event A: Person has type A blood.

Event B: Person has Rh- factor.

43% of people have type O blood

This means that $P(A) = 0.43$

15% of people have Rh- factor

This means that $P(B) = 0.15$

52% of people have type O or Rh- factor.

This means that $P(A \cup B) = 0.52$

a. Find the probability that a person has both type O blood and the Rh- factor.

This is

$P(A \cap B) = P(A) + P(B) - P(A \cup B)$

With what we have

$P(A \cap B) = 0.43 + 0.15 - 0.52 = 0.06$

0.06 = 6% probability that a person has both type O blood and the Rh- factor.

b. Find the probability that a person does NOT have both type O blood and the Rh- factor.

1 - 0.06 = 0.94

0.94 = 94% probability that a person does NOT have both type O blood and the Rh- factor.

6 0

3 years ago

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the

worty [1.4K]

Answer:

The maximum height is 1087.06 ft.

Step-by-step explanation:

We need to take the derivative of the equation and set it to 0.

$y' = - 32x + 254 = 0\\32x = 254\\x = 7.9375$

We now can plug x = 7.9375 into the original equation.

$y=-16x^{2} +254x+79\\y=-16(7.9375)^{2}+254(7.9375)+79\\y=1087.06 ft$

7 0

3 years ago

Read 2 more answers

?<br>12.Write an equation and solve it to find the measure of Angle TPQ.

tatuchka [14]

9 times 9 = 81 6 times 6 =36 so 36 plus 18

8 0

3 years ago

The temperature was 2° below zero the temperature drops by 5° what is the temperature now

Law Incorporation [45]

-2° was the initial temperature as it dropped to -5°
-2-5=-7
Hope this helped

4 0

3 years ago

If you graph y=2x+1 and y=x+1 how many times would the two lines intersect

krok68 [10]

Given that they follow the format for straight lines and are therefore straight lines, they would only intersect once and that would be at (0,1) where they both have a y intersect.

Hope this helps :)

3 0

3 years ago