4(2x-3) = 3+8x-11 solve the equation for x.

The ratio of peanut butter to cookie dough is 1:5. Which of the following best describes the amount of peanut butter and cookie

aleksley [76]

I believe the answer is the 3rd choice

5 0

3 years ago

Daisy bought a package of hamburger meat that weighs 2 pounds. She made 3 hamburgers that had the same amount of hamburger meat.

vovangra [49]

The answer would be A hope this helped

3 0

3 years ago

Find the standard form of the equation of the parabola with a focus at (0, 2) and a directrix at y = -2.

LUCKY_DIMON [66]

Since the focus is at (0, 2) and directrix is y = -2

point where both of these have the same x-value will be at (0, 2) for the focus and (0, -2) for the directrix.

The vertex will also have the same x-value so it will be (0, y).

y-value is half-way between the y-value of the focus, and the y-value of the directrix at x = 0.

Directrix y-value is -2 at x = 0 and for the focus it's 2 at x = 0.

Halfway between y = -2 and y = 2 is y = 0.

So the vertex of the parabola occurs at (0, 0).

So that's x^2 = 4ay = 4(2)y = 8y.

y = 1/8*x^2

hope it helps

7 0

4 years ago

Read 2 more answers

It is a well-known fact that 50% of the general population are rascals (P(R) = 0.5) and 50% of the general population are not ra

aleksley [76]

Answer:

The answer is D. 0.75

Step-by-step explanation:

Let call R the event that a person is rascal, RC a person is not rascal, TH a person use top hat and NTH a person don’t use top hat.

From the information on the question we have 4 options with their respective probability:

1. A person could be rascal and use top Hat: this probability is calculate as the multiplication of the probability of be a rascal (0.5) and use a top hat (0.9), then:

P(R y TH)=0.5*0.9=0.45

2. A person could be rascal and don’t use top Hat: this probability is calculate as the multiplication of the probability of be a rascal (0.5) and not use a top hat (0.9), then:

P(R y NTH)=0.5*0.1=0.05

3. A person could be not rascal and use top Hat: this probability is calculate as the multiplication of the probability of not be a rascal (0.5) and use a top hat (0.3), then:

P(RC y TH)=0.5*0.3=0.15

4. A person could be not rascal and not use top Hat: this probability is calculate as the multiplication of the probability of not be a rascal (0.5) and not use a top hat (0.7), then:

P(RC y NTH)=0.5*0.7=0.35

Then the probability that a person is a rascal given that he is wearing a top hat could be written and calculate as:

$P(R/TH)=\frac{P(R y TH)}{P(TH)}$