Which equation best represents a trend line for the scatter plot?

7 2/3 + 9 3/4= Plz help A. 17 1/2 B. 16 5/12 C. 16 5/7 D. 17 5/12

Elis [28]

The answer is D. 17 5/12

4 0

3 years ago

What is 2.1 times 3.2 find the missing partial products HELP.

vredina [299]

Given:

The area model for $2.1\times 3.2$ .

To find:

The value of $2.1\times 3.2$ and the missing values in the area model.

Solution:

2.1 can be written as 2 and 0.1 on the left side of the area model.

3.2 can be written as 3 and 0.2 on the top of area model.

Area of the four parts of the area model are:

$2\times 3=6$

$2\times 0.2=0.4$

$0.1\times 3=0.3$

$0.1\times 0.2=0.02$

The complete area model is shown below.

After adding all areas of the area model, we get

$6+0.4+0.3+0.02=6.72$

Therefore, the value of $2.1\times 3.2$ is 6.72 and the missing values of the area model are 0.3 and 0.02 respectively.

8 0

3 years ago

In algebra, we often study relationships where a change to one variable causes change in another variable. Describe a situation

dexar [7]

Answer:

The amount of firewood we use gives us a handful of ash. SO, on the x axes would we the amount of firewood and on the y axis it would be the amount of ash that was concluded.

Step-by-step explanation:

I have this q rn. And this is what im using. hope this helps!

4 0

2 years ago

Does anyone know how to do these maths question???

Dmitry_Shevchenko [17]

Answer:

Part 1) $f(g(x))=3(x^2)+2$

Part 2) $g(f(5))=289$

Step-by-step explanation:

we know that

A composite function is a function that depends on another function. A composite function is created when one function is substituted into another function

we have

$f(x)=3x+2$

$g(x)=x^{2}$

Part 1) Determine f(g(x))

To find f(g(x)) substitute the function g(x) as the variable in function f(x)

so

$f(g(x))=3(x^2)+2$

Part 2) Determine g(f(x))

To find g(f(x)) substitute the function f(x) as the variable in function g(x)

so

$g(f(x))=(3x+2)^2$

For x=5

$g(f(5))=(3(5)+2)^2$

$g(f(5))=289$

3 0

3 years ago

A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to create 30 liters of a 15% hydrogen per

FromTheMoon [43]

Your two equations are at the top, in the box is what each variable represents. Below the box is total liters of the 15%, which is going to equal the total liters for 10% plus the total liters for 25%. Make your percentages into decimals. There’s a total of 30 liters so, x+y needs to equal 30. Isolate a variable, I chose y, you can do either or (isolating x would be more math). Y is going to equal 30-x, substitute that for the Y in the second equation, then you need to distribute 0.25 into 30-x. Then it’s simple math, subtract 7.50 from both sides, add like gets, divide both sides by -0.15, making x=20.

8 0

2 years ago