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MaRussiya [10]
4 years ago
9

List the steps to solve the equation 28=2(4w-11)+9

Mathematics
2 answers:
Brrunno [24]4 years ago
6 0
Distribute out the 2 28=8w-22+9 28=8w-13 add 13 to both sides 28+13 = 8w 41=8w divide both sides by 8 5.125 = w
DedPeter [7]4 years ago
3 0
28=2(4w-11)+9
Step 1: Expand the brackets by multiplying what's in them by 2.
28=8w-22+9
Step 2: Simplify the constants on the right side -22 and 9 by adding them.
28=8w-13
Step 3: Add 13 to both sides to isolate the variable.
41=8w
Step 4: Divide both sides by 8 to isolate the variable completely.
x=41/8
Leave the answer in a fraction form 41/8 or a decimal form 5.125.
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I need help on #4 & #6
Elan Coil [88]
So for 4, first thing you need is slope. Choose 2 points. I am choosing (8,2) and (6,3) So, then its the second y term subtracted by the first y term over(Or divided by) the second x term subtracted by the first x term.
3-2/6-8 or 1/-2 or -.5 (negative 0.5)
Now, time to find the yintercept(yint). So, choose one of the points, Im choosing (8,2), and put it into slope intercept, but leave yint as b.
(2)=-.5(8)+b
simplify
2= -4+b
subtract -4
b=6
So, your answer is y= -0.5x+6
I will right number 6 in anoher answer


6 0
3 years ago
F(x)=x2 what is g(x)?
Oksi-84 [34.3K]

g(x) = (1/4)x^2 . correct option C) .

<u>Step-by-step explanation:</u>

Here we have , f(x)=x^2  and we need to find g(x) from the graph . Let's find out:

We have ,  f(x)=x^2   . From the graph we can see that g(x) is passing through point (2,1 ) . Let's substitute this point in all of the four options !

A . g(x) = (1/4x)^2

Putting (2,1) in equation g(x) = (x/4)^2 , we get :

⇒ g(2)= (\frac{2}{4} )^2

⇒ 1\neq \frac{1}{4}

Hence , wrong equation !

B . g(x) = 4x^2

Putting (2,1) in equation g(x) = 4x^2 , we get :

⇒ g(2)=4(2)^2

⇒ 1\neq 64

Hence , wrong equation !

C . g(x) = (1/4)x^2

Putting (2,1) in equation g(x) = (1/4)x^2 , we get :

⇒ g(2)= (\frac{1}{4} )2^2

⇒ 1= 1

Hence , right equation !

D . g(x) = (1/2)x^2

Putting (2,1) in equation g(x) = (1/2)x^2 , we get :

⇒ g(2)= (\frac{1}{2} )2^2

⇒ 1\neq 2

Hence , wrong equation !

Therefore , g(x) = (1/4)x^2 . correct option C) .

8 0
4 years ago
Which of the following is equal to 10-5?
salantis [7]

Answer:

Step-by-step explanation:

10^{-5}=\frac{1}{10^{5}}=\frac{1}{100000}=0.00001

4 0
4 years ago
Read 2 more answers
The number of kilometers y in a measure varies directly as the number of miles x. Write a direct variation equation that could b
vagabundo [1.1K]

Answer:

x= 1.069Y

Step-by-step explanation:

kilometers = y

miles = x

y>x

5x = 8.045y

therefore,

8.045 divided by 5 to get value of X

hence,

X = <u>1.069Y</u>

8 0
3 years ago
What is the graph of F(x)=0.5(2)x
zepelin [54]

The slope is 1 and there is no y intercept.


3 0
3 years ago
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