Answer:
Solve the rational equation by combining expressions and isolating the variable
X
.
X
=
√
2
(
3
x
−
29
)
X
=
−
√
2
(
3
x
−
29
)
Step-by-step explanation:
Answer:
No real Solutions
Step-by-step explanation:
Step one: The coefficient on -6x is -6. So b= -6
Step two: Add (b/2)^2 to each side. in our case it is 9
x^2-6x+9= -49
Step three: Factor left side
(x-3)^2 = -49
Step four: take the square root
x-3 = ±√-49
Step five: add 3 to both sides
x = 3 ± √-49
So there is no real solutions
3. During one day in a hardware store, 37 people came in and made a purchase, and 13 people
looked around but didn't purchase anything. Express the following in ratios:
a. Purchasers to nonpurchasers
b. Nonpurchasers to purchasers
c. Purchasers to total customers
d. Nonpurchasers to total customers
Answer:
i think the answer is A
Step-by-step explanation:
The diagram below represents which percent?
An area model with 4 shaded sections and 1 unshaded section.
4%
45%
75%
80%
Answer:
80%
Step-by-step explanation:
There are 4 shaded sections and 1 unshaded section, so five sections in total.
4 sections are shaded, so the fraction would be 4/5.
Dividing 4/5 gets you 0.8, move the decimal point two places over to get the percent (80%).
Answer:
D. 80%
Step-by-step explanation:
Well, the diagram shows 4/5ths knowing this is more than half we can auto matily mark out the first two A. and B. leaving C. 75% and D. 80% and D. is the best choice (sorry go too lazy to explain...)
What does the pattern in the residual plot indicate about the type of model?
a. The pattern is random, indicating a good fit for a nonlinear model.
b. The pattern shows the points are far from the zero line, indication a good fit for a linear model.
c. The pattern shows the points are far from the zero line, indicating a good fit for a nonlinear model.
d. The pattern is not random, indicating a good fit for a nonlinear model.
e. The pattern is random, indicating that the model is unable to be determined.
Answer: c. The pattern shows the points are far from the zero line, indicating a good fit for a nonlinear model.
d. The pattern is not random, indicating a good fit for a nonlinear model.
Step-by-step explanation:
A residual plot is a graph that represents
residuals on the vertical axis independent variable on the horizontal axis.Two main kids of plot are there.
First plot gives a random pattern, indicates a good fit for a linear model.
Other plots are non- random, indicates a good fit for a non- linear model.
Two points are correct for any residual plots :
c. The pattern shows the points are far from the zero line( basically u-shaped), indicating a good fit for a nonlinear model.
d. The pattern is not random, indicating a good fit for a nonlinear model.
Sanjay consulted three electricians about upgrading the wiring in his home. Each electrician uses a linear formula that incorporates a flat base fee and an hourly rate to determine the cost of service. Those formulas are shown in the table.
Repair Cost Formulas
Electrician
Cost in y dollars for an x-hour service
1
y = 25 x + 30
2
y = 30 x + 25
3
y = 25 x + 20
Which statement is best supported by the table?
Each electrician charges a different hourly rate.
Each electrician charges a different base fee.
All three electricians charge the same hourly rate.
All three electricians charge the same base fee.
Answer: B: each electrician charges a different base fee
Step-by-step explanation:
Answer:
b.Each electrician charges a different base fee:
Explanation:
Each of the equations has two parts:
1- base fee that is independent of any variable (this would be the number that has no variable next to it)
2- an hourly rate depending on the number of hours x (this would be the number that has an x next to it)
For the first electrician:
y = 25x + 30
base fee = $30
hourly rate = $25
For the second electrician:
y = 30x + 25
base fee = $25
hourly rate = $30
For the third electrician:
y = 25x + 20
base fee = $20
hourly rate = $25
Now, let's check the choices:
a.Each electrician charges a different hourly rate:
This is incorrect as electricians 1 and 3 charge the same hourly rate ($25)
b.Each electrician charges a different base fee:
This is correct as all three base fees are different ($30, $20 and $25)
c.All three electricians charge the same hourly rate:
This is incorrect as electrician 2 has a different hourly rate
d. All three electricians charge the same base fee:
This is incorrect as the base fees for the three electricians are different ($30, $25 and $20)
Brainliest please get right
Answer:
12x-9Step-by-step explanation:
hope this helpssss
Answer:
12x + -9 or 12x-9
Step-by-step explanation:
9x-4+3x-5
Combine the like terms.
9x + 3x = 12x
-4 - 5 = -9
12x-9
#4 PLS HELP I WILL MARK BRAINLIEST IF ITS CORRECT
Answer: the answer would be c
Step-by-step explanation:
A line with a positive slope is parallel to one of the lines shown. What is its slope? Use the graph shown below.
The slope is 0.75 as 3/4 = 0.75
Answer:
Step-by-step explanation:
Only the blue line has a positive slope. So the new line is parallel to the blue line.
Clearly, the blue line goes through the point (0, 3) (this is the y-intercept). Follow this blue line upward and to the right until it intersects the horizontal line at the top of the diagram. We must estimate the x-value of this point of intersection. A good approximation would be 5 1/3.
Now estimate the slope of the blue line. Starting at (0, 3), we move 5 1/3 units to the right (this is the "change in x," or "run") We end up at (5 1/3, 3).
Now, from the horizontal line y = 3 upward to the horizontal line at the very top of the graph, is 5 units. This is the "rise."
Thus, the approximate value of the slope here is
5 5 15
m = rise / run = ---------- = -------------- = ----------- = m
5 1/3 16/3 16
the percent of decrease from 12 to 9.
Answer:
75%
Step-by-step explanation:
THERE IT IS.
THANK YOU SO MUCH FOR HELPING ME
simplify 5^-4/5^3 (please heeeelp)
Answer: 1/5^7 or 1/78125 <= another way
Step-by-step explanation:
5^−4/5^3
=5^−4/5^3
=5^−4−3
=5^−7
=1/5^7
=1/78125
The point (5, -6) is reflected over the x-axis. What are the new coordinates of the reflection?
Answer:
(5,6)
Step-by-step explanation:
since it is reflected over x axis, y value will flip sign
My tutor was no help !!! Help me please!!!!
What number is 38% of 60
Answer:
63.333333333333 you could put 63.3
Step-by-step explanation:
How much is 38 out of 60 written as a percent value? Convert fraction (ratio) 38 / 60 Answer: 63.333333333333%
Answer:
38% of 60 is 22.8. that's the correct answer
How many solutions does this equation have?
4 − 6r = –9r + 4
Answer: none
Step-by-step explanation:
Find the missing side I’m almost done
Answer:
the answer is a
Step-by-step explanation:
Answer:
The answer is A...
Is right
Which correctly applies the distributive property to show an equivalent expression to (–2.1)(3.4)? (2)(3) – (0.1)(0.4) (–2)(3) + (–0.1)(0.4) (2.1)(3) – (2.1)(0.4) (–2.1)(3) + (–2.1)(0.4)
Answer:
d i hope
Step-by-step explanation:
good
Answer:
I think it is c
Step-by-step explanation:
hope this helps
Consider the equation y = 1.5x + 2. Find four pairs of x and y values that make
the equation true. Plot the points (x, y) on the coordinate plane.
Based on the graph, can this be a proportional relationship? Why or why not?
Answer:
1. (2,5),(1,3.5),(4,8),(6,11)
2. This is not a proportional relationship (explanation below)
Step-by-step explanation:
For the plotting, if you take some random x values and multiply by 1.5 and add 2 to them.
This can't be a proportional relationship. A proportional relationship means the x and y values' ratios have to stay the same. However, because 2 is added to 1.5x, the equation is not proportional.
The four x and y values that make the equation true are (0,2), (-1.333,0), (1,3.5), and (1,3.5).
What in mathematics is a proportionate relationship?When the ratios of two variables are equal, they form proportional relationships. Another way to think about them is that in a proportionate relationship, one variable is always equal to the constant value of the other.This constant is known as the "constant of proportionality." To find: The four sets of x and y values required to solve the equation. Put the (x, y) coordinates on a coordinate plane.Therefore,
We select several x and y values,
1) Take x=0,
y = 1.5(0) + 2 =2.
The point is (0,2).
2) Take y=0,
0 = 1.5x + 2
x = -2/1.5 = -1.333
The point is (-1.333,0).
3) Take x=1,
y = 1.5(1) + 2 = 3.5
The point is (1,3.5).
4) Take y=1,
1 = 1.5x +2
1.5x = -1
x = -1/1.5 = -0.666.
The point is (-0.666,1).
The four sets of x and y numbers that make the equation true are (0,2), (-1.333,0), (1,3.5), and (0,2).
To learn more about proportional relationship, refer to:
brainly.com/question/21302696
#SPJ2
Raymond bought a box of candy bars for $5.25 and sells the candy for $0.75 each. Paul bought a box of candy bars for $8.75 and then sells the candy for $1.25 each. How many candy bars does each have to sell to have the same profit? Write an equation to match this scenario and then determine the solution.
Answer:
Step-by-step explanation:
Jose owes his brother $50. He promises to pay his brother back $5 each week until his debt is paid off. Represent the relationship between the debt, D, and the number of weeks, n, in a table, graph, verbal description, and algebraic expression.
Answer:
it will take 10 weeks for him to pay his brother completly
Step-by-step explanation:
what is the fraction for 0.457(repeating)
Answer:
457/999
Step-by-step explanation:
Answer:
457/999
Step-by-step explanation:
i got it right :)!
Please Dont Skip Over My Question, Please Help Me. ;(
Let f(x) = –7x + 9. Suppose you add 2 to the input of f to create a new function g, then multiply the output of function g by –3 to create function h. What are the slope and y-intercept of the graph of function h?
slope =
y-intercept =
Answer: slope = 21, y-int = 15
Step-by-step explanation:
f(x) = -7x + 9
g(x) = -7(x + 2) + 9 = -7x - 5
h(x) = -3(-7x - 5) = 21x + 15
slope = 21
y-intercept = 15
hope this helps (not sure if my answer is correct)
What is 2 ÷ 1/6?
A. 1/12
B. 2
C. 6
D. 12
Answer: 12 (D)
Step-by-step explanation:
Hey there! If you have any questions, feel free to them in the comments below.
Step 1: Use this rule [tex]a / \frac{b}{c} = a * \frac{c}{b}.[/tex]
2 * 6
Step 2: Simplify.
12
~I hope this helped you! :)~
Answer:
Step-by-step explanation:
here you go mate
step 1
2 ÷ 1/6 equation
step 2
(2)(6) multiply the two numbers
answer
12
What role does Geometric formulas have in our lives??
Graph: y – 3 =} (x + 2)
Answer:
f
−
1
(
x
)
=
x
−
3
Step-by-step explanation:
ASAP!! If quadrilateral PQRS is a square, what are the coordinates of point E?
Answer:
E - (28, 25)
Hope this helps!
What is the missing area of the square?
Answer:
27 m2
Step-by-step explanation:
HELP PLS! WILL REWARD BRAINLIEST, TYSM !
Answer:
b and d
Step-by-step explanation:
they both have b
Answer:
-0.9b can be combined as well a b/12 and -2b
solve for x:
x/6-6<8
????????
Answer:
Your answer is: x < 84
Step-by-step explanation:
Hope this helped : )
Answer:
x<84
Step-by-step explanation:
In this problem, we can't find a specific value of x. In this case, we will find a range of value suitable for x.
[tex]\frac{x}{6} -6 < 8[/tex]
Add 6 to both sides
[tex]\frac{x}{6} <14[/tex]
Multiply 6 to both sides
x<84
Hope this helps! :D
Ricardo can type 39 words per minute. Estimate the number of words he can type in 18 minutes. 400 or 600 or 300 or 800
Answer:
800
Step-by-step explanation:
ROund 39 to 40 and 18 to 20.
This results in 40 x 20=800.
Can someone help me??