How do you find x and y in a word problem

1 answer:

3 0

You replace one letter with 0 so you can cancel it out. So for example, when you are solving for y, you put x as 0 so then you can find the y. If the problem is x+y=24. You put x as 0 and you solve for y.

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Suppose you buy a new car whose advertised mileage is 20 miles per gallon (mpg). After driving your car for several months, yo

Helen [10]

Answer:

$\frac{15,7 - 20}{1,26} = - 3,4$

Step-by-step explanation:

To determine the Z - score, it is calculated as follows:

$\frac{X - X_{avg} }{σ}$

Then:

$\frac{15,7 - 20}{1,26} = - 3,4$

It means that there are more than 3 standar deviations below the advertised mileage.

3 0

4 years ago

I need details please

m_a_m_a [10]

Ok, first you need to read a - g and mark down the information you know. Also, this continuous function can look pretty much like anything long as it has the a - g constraints/rule.

A) We know the domain(x values) is between -10 to infinity
(-10,-9,-8,-7,-6,-5,-4,-3-,2,-1,0,1,2,3,4,5,6,7,8,9,10, to ---------> infinity)
B) We know the range(y values) is between -6 to infinity
(-6,-5,-4,-3-,2,-1,01,2,3,4,5,6,7,8,9,10, to ---------> infinity)

C) Next we know f(0) = f(4) = 0
So we know when x = 0 that f(0) = 0 or we can say y = 0. We also know when f(4) = 0 so when x = 4 y = 0. So we have two points (0,0) and (4,0) that our function will be on so plot the two points (0,0) (4,0)

D) It tells us that f(x) (y) is increasing between the x values (-10,-6) or (-2,2) or (4, to infinity)

E) It tells us that f(x) (y) is decreasing between the x values (-6,-2) or between (2,4)

F) Tells us that f(x) (y) is greater than or equal to between the x values of [-8,-4] or between the x values [0, to infinity) so this lets us know our drawing is going to be above or equal to 0 when we are in the values [-8,-4] or [0, to infinity)

G) Tells us that f(x) (y) is less than 0 when the function / drawing is between the x values of (-10, -8) or (-4,0)

The picture is what the function could look like. It can be different but needs to following the rules that are given

3 0

3 years ago

Please helpppppppp :(

wariber [46]

Answer:

1,5

Step-by-step explanation:

first and last ones

5 0

3 years ago

Simplify by finding the product of the polynomials below. Then Identify the degree of your answer. When typing your answer use t

nexus9112 [7]

Solution:

Given:

$(2x^2+2x+1)(4x-1)$

To get the product of the polynomial; we use the distributive property of multiplication.

$a(b+c)=ab+ac$

$\begin{gathered} (4x-1)(2x^2+2x+1) \\ 4x(2x^2+2x+1)-1(2x^2+2x+1) \\ =8x^3+8x^2+4x-2x^2-2x-1 \\ \text{Collecting similar terms together and simplifying further;} \\ =8x^3+8x^2-2x^2+4x-2x-1 \\ =8x^3+6x^2+2x-1 \end{gathered}$

Therefore, the product of the polynomials is;