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2 years ago

Peter bought 3 different types of

Mathematics

2 answers:

Natali5045456 [20]2 years ago

5 0

Answer:

Peter bought 3/4 lb of cheese.

Step-by-step explanation:

To find out the total amount of cheese, you have to multiply 3 types by 1/4 lb which is 3*1/4 = 3/4. I hope this helps!

Dominik [7]2 years ago

3 0

Answer:

3/4 lb

Step-by-step explanation:

You can use multiplication:

3 × 1/4 lb = 3/1 × 1/4 lb = 3/4 lb

You can also use addition:

1/4 lb + 1/4 lb + 1/4 lb = 3/4 lb

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Answer:18

Step-by-step explanation:

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3 years ago

In assessing the validity of any test of hypotheses, it is good practice to a. examine the probability model that serves as a ba

ehidna [41]

Answer:

The Correct option is - d. all of the above.

Step-by-step explanation:

To find - In assessing the validity of any test of hypotheses, it is good practice to

a. examine the probability model that serves as a basis for the test by using exploratory data analysis on the data.

b. determine exactly how the study was conducted.

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d. all of the above.

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The Correct option is - d. all of the above.

4 0

3 years ago

Someone please help.

Alexxandr [17]

Hi there!

$f(x)+f(x+1)=4f(x)$

There are 3 parts to this equation:

f(x)

f(x+1)

4f(x)

We must first determine these three parts separately.

1) f(x)

We're given that $f(x)=3^x$ :

⇒ $f(x)=3^x$ :

2) f(x+1)

Now, we must find f(x+1). To do so, add 1 to x in the original function $f(x)=3^x$ :

⇒ $f(x+1)=3^x^+^1$

3) 4f(x)

To find 4f(x), multiply the original function $f(x)=3^x$ by 4:

$4f(x)=4*3^x$ :

4) Put it all together

Now, plug each of the three parts into the equation $f(x)+f(x+1)=4f(x)$ :

$f(x)+f(x+1)=4f(x)$

$3^x+3^x^+^1=4*3^x\\3^x+3^x*3=4*3^x$

Factor the left side

$3^x*(1+3)=4*3^x$

Divide both sides by 3^x

$1+3=4\\4=4$

Because this equation is true, $f(x)+f(x+1)=4f(x)$ is therefore true.

I hope this helps!

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3 years ago

Whats the answer I have sent a photo im not sure if u can see it

aleksandrvk [35]

Hey mate!!!!! yes we can see the picture but what do you want us to do for you??

3 0

3 years ago

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Enrollment in a school has grown exponentially since the school opened. Below is a graph depicting this growth. Determine the av

tresset_1 [31]

Answer:

2.5

Step-by-step explanation:

The average rate of the function f(x) from x=a to x=b is given by:

$\frac{f(b)-f(a)}{b-a}$

From the question, the exponential function goes through (0,30) and (20,80).

This implies that f(0)=30 and f(20)=80

Therefore the average rate of change from x = 0 to x = 20 is

$=\frac{f(20)-f(0)}{20-0}$

$=\frac{80-30}{20}$

$=\frac{50}{20}=2.5$

The second choice is correct

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3 years ago

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