All categories

2 years ago

PLEASE HELP WHICH STATEMENT IS TRUE

Mathematics

2 answers:

OverLord2011 [107]2 years ago

6 0

Answer:

A. equation A and equation B are both examples of proportional relationships. As they are both linear equations.

Svetradugi [14.3K]2 years ago

3 0

Answer:

The second one is the true statement.

Step-by-step explanation:

You might be interested in

A rope is tied to the bottom of a hot air balloon as shown. The altitude of the balloon is 50 feet and the rope is 75 feet long.

Semenov [28]

Answer:

As per the statement

The altitude of the balloon is 50 feet and the rope is 75 feet long.

⇒ Altitude of the balloon = 50 feet.

And length of the rope = 75 feet.

We have to find the angle that rope makes with ground,

Using Sine ratio:

$\sin \theta = \frac{\text{Opposite side}}{\text{Hypotenuse side}}$

You can see the diagram as shown below.

Here,

Opposite side = Altitude of the balloon = 50 feet.

Hypotenuse side = length of the rope = 75 feet.

Substitute the given values we have;

$\sin \theta = \frac{50}{75} =\frac{2}{3}$

⇒ $\theta = \sin^{-1} (\frac{2}{3})$ = 41.8°

Therefore, the angle that the rope makes with the ground is, 41.8 degree

8 0

4 years ago

Read 2 more answers

Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, of all homeowners are insured

ANTONII [103]

Missing part of the question

Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 25% of all homeowners.....................

Answer:

$P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}$

$Mean = 1$

$Pr = 0.2617$

Step-by-step explanation:

Given

$n = 4$

$p = 25\%$

Solving (a): The probability distribution of x

We have:

$n = 4$

$p = 25\%$ $= 0.25$

The probability of not having earthquake insurance (q) is:

$q = 1 - p$

$q = 1 - 0.25$ $= 0.75$

If x has insurance, then n - x do not.

The distribution follows a binomial pattern. So, the probability distribution is:

$P(X = x) = ^nC_x * 0.25^x * 0.75^{n-x}$

Substitute 4 for n

$P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}$

Solving (b): The most likely value of x i.e. The mean

We have:

$n = 4$ and

$p = 25\%$ $= 0.25$

$Mean = np$

$Mean = 4 * 0.25$

$Mean = 1$

Solving (c): At least 2 of 4 selected have earthquake insurance.

This is calculated as

$Pr = P(x = 2) + P(x = 3) + P(x = 4)$

$P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}$

$P(X=2) = ^4C_2 * 0.25^2 * 0.75^{4-2}$

$P(X=2) = 6 * 0.25^2 * 0.75^2 = 0.2109375$

$P(X=3) = ^4C_3 * 0.25^3 * 0.75^{4-3}$

$P(X=3) = 4 * 0.25^3 * 0.75 = 0.046875$

$P(X=4) = ^4C_4 * 0.25^4 * 0.75^{4-4}$

$P(X=4) = 1 * 0.25^4 * 1= 0.00390625$

So:

$Pr = P(x = 2) + P(x = 3) + P(x = 4)$

$Pr = 0.2109375 + 0.046875 + 0.00390625$

$Pr = 0.26171875$

$Pr = 0.2617$ --- approximated

6 0

3 years ago

⚠️❗️⚠️❗️⚠️❗️25 POINTS PLEASE HELP ASAP I NEED THE ANSWER TO THE PROBLEM ANSWERED BELOW ⚠️❗️⚠️❗️⚠️❗️

alexgriva [62]

Answer:

101

Step-by-step explanation:

Find the area of the left triangle

11 -8 = 3

A = l*w = 15*3 = 45

Then find the area of the right triangle

A = l*w = 8*7 = 56

Add the areas together

45+56 =101

4 0

3 years ago

Each drink cost d in dollars

zhenek [66]

There is no picture what do you mean

6 0

3 years ago

A common practice of airline companies is to sell more tickets for a particular flight than there are seats on the plane, becau

Serga [27]

Answer:

0.0159

Step-by-step explanation:

Given that a common practice of airline companies is to sell more tickets for a particular flight than there are seats on the plane, because customers who buy tickets do not always show up for the flight.

Here if X is the no of persons that do not show up, then X is binomial as each trial is independent with p = 0.04 and n =150 (no of tickets sold)

The plane is overbooked if more than 150 show up

i.e. less than 2 do not show up

Hence the probability that the airline overbooked this flight

= $P(X$

4 0

3 years ago