9514 1404 393
Answer:
(x, y) = (-2, 1)
Step-by-step explanation:
Equate the two expressions for y.
-5x -9 = 2x +5
-14 = 7x . . . . . . . .add 5x-5
-2 = x . . . . . . . . . divide by 7
Then ...
y = 2(-2) +5 = 1
The solution is (x, y) = (-2, 1).
Traverion wants to find the answer to the question "How much money does the average college professor make?" He surveys 50 professors from the university in his hometown. Which best describes whether or not the results of his survey would represent the responses from the entire population of college professors?
Answer:
The results do not in anyway represent the population reason been that the sample does not represent professors from different areas but only tend to represent 50 professors from his hometown university
Step-by-step explanation:
Based on the information given the results of his survey does not in anyway represent the entire response from the population of college professors reason been the surveys carriedout by him was only for 50 professors from the university in his hometown and not professors from different areas which means that the sample or survey about the amount of money that average college professor make collected by him was not accurate.
Therefore for him to have accurate result he have to survey professors from different area which will inturn give him the accurate sample
Answer:
its b.
Step-by-step explanation:
Which relation is not a function?
A(2,9), (-1,-5), (1,5), (5,0), (12, 3)
B. (-3, 1), (6,2), (8,3), (6,4), (3, 5)
C. (5, 1), (4,2), (3, 3), (2, 4), (1,5)
D. (7,2), (5,3), (3, 4), (1,5),(-1, 6)
Answer:
B. (-3, 1), (6,2), (8,3), (6,4), (3, 5)
Step-by-step explanation:
This relation is not a function because the number 6 repeats twice.
solve the equation
[tex]2 {}^{2} \times (4a - 8) = 16[/tex]
Answer:
[tex]a=3[/tex]
Step-by-step explanation:
[tex]2^{2} \cdot(4a-8)=16\\4\cdot(4a-8)=16\\16a-32=16\\16a=48\\a=3[/tex]
Hope this helps :D
Answer:
a = 3 is your answer
hope it helps
Tori is sending a birthday gift to her friend out of state and wants to know how much brown paper she will need to
cover the box.
8 in
10 in.
14 in
Which statement is true about the amount of paper Tori will need to cover the entire box?
O Covering the entire box is the surface area, which is 664 in.?.
O Covering the entire box is the surface area, which is 1,120 in.?
O Covering the entire box is the volume, which is 664 in.3.
O Covering the entire box is the volume, which is 1,120 in.?.
Answer:
A. Covering the entire box is the surface area, which is 664 in.
Step-by-step explanation:
I did the test myself. Have a great day/night! Good luck with the rest of your test! <3
Using the following equation, what does L equal?
A
B
C or
D?
Answer:
L=4[tex]\pi=4\pi d^2b[/tex]
Step-by-step explanation:
Evaluate the expression x/2+5x−7 when x=2 .
Answer:
The Answer is 4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
So you inscert x as 2 which will give you
2/2+5(2)−7 (punch that in the calculator)
= 4
or if you need to expand your answer you can write it down like this
= 2/2+5(2)−7
= 1+10-7
= 11-7
= 4
*PLEASE ANSWER* // *CONFUSED*
Which type of compound inequality is |y−3|−4≤−3?
a.) disjunction
b.) intersection
c.) hole
d.) union
Answer:
b.) intersection
Step-by-step explanation:
The given inequality can be rearranged so that you can see the solution space is one continuous interval.
__
It is described by the intersection of two inequalities.
|y -3| -4 ≤ -3 . . . . . . given
|y -3| ≤ 1 . . . . . . . . add 4
-1 ≤ y -3 ≤ 1 . . . . . "unfolded", the intersection of two inequalities
2 ≤ y ≤ 4 . . . . . . . add 3
This means 2 ≤ y and y ≤ 4, the intersection of the two inequalities.
_____
Additional comment
If the inequality were of the form ...
|y -3| ≥ 1
then it would "unfold" to ...
-1 ≥ y -3 or y -3 ≥ 1
and the solution intervals would be disjoint. The solution would be the union of the solution intervals of the individual inequalities.
Answer:
intersection is right
Step-by-step explanation:
2.16 or 2.8 which is bigger
Answer:
2.8
Step-by-step explanation:
2.16=2.16
2.8=2.80
8 is bigger than one
Answer: 2.8
Step-by-step explanation: the 0.8 is bigger than the 0.16.
a mixture of purple paint contains 4 teaspoons of red paint and 12 teaspoons of blue paint. to make the same shade of purple paint using 60 teaspoons of blue paint, how many teaspoons of red paint would you need?
Answer: you need 20 teaspoons of red paint
Solve for y: 7+ 2(x + y) = 11
HALP AAAASAAAPPP!!!
PLS & THANKS!
I will mark brainly
Quote of the day: Cheese is just a loaf of milk.
Isolate the variable by dividing each side by factors that don't contain the variable.
y = 2 − x
Select all of the factors of x3 + 5x2 + 2x – 8.
x + 5
x – 3
x + 4
x – 1
x + 3
x + 2
Answer:
i think it would be multiplied by x
Step-by-step explanation:
that sounds like the best thing to do
Answer: (x+4), (x-1), (x+2) or C,D,F
Step-by-step explanation:
Edge = (x + 4)(x + 2)(x - 1)
Solve using substitution.
4x - 5y = 1
x = -6
Answer:
y = -5
Step-by-step explanation:
To solve by using substitution, first substitute x for -6 in the equation 4x-5y=1
4(-6)-5y=1 start by simplifying this problem
-24-5y=1 now you can solve for y, add 24 on both sides
-5y=25 now divide -5 on both sides
y= -5
Use opposite operations to solve 3/4 x=6
Answer:
x=8
Step-by-step explanation:
3x/(4 x 4) =6(4)
cancel the four in the left side
3x=24
then divide 3 on both sides
3x/3=24/3
cancel the 3 on the left
x=8
Find the slope of the line that passes through (6, 7) and (1, 11).
Answer: -4/5
Step-by-step explanation:
Answer:
[tex]\frac{4}{5}[/tex]
Step-by-step explanation:
In order to find the answer to this question you must to use the formula of slope, substitute the values, and then solve.
[tex]slope = \frac{y2-y1}{x2-x1}[/tex]
[tex]P1=(6,7)=(x1,y1)[/tex]
[tex]P2=(1,11)=(x2,y2)[/tex]
Substitute:
[tex]\frac{11-7}{1-6}[/tex]
Solve:
[tex]11-7=4[/tex]
[tex]1-6=-5[/tex]
[tex]=\frac{4}{-5}[/tex]
Simplify:
[tex]\frac{4}{5}[/tex]
Hope this helps.
Which of following is the graph of y = -(x + 1)2-3?
Answer: the third option
Step-by-step explanation:
Edge 2020
Answer: It is C
Step-by-step explanation: I got it correct.
Need help please!!!!
Answer:
72
Step-by-step explanation:
The answer is 72 because it is a simliar triangle, all the sides are proportional to each other. 45/5=9, 63/7=9, so the factor is 9. 9 times 8 is 72.
what is x and y:
y= 2x-11
y=x-3
8/20 in a decimal and percentage?
Answer: 40% and 0.4
Step-by-step explanation:
Joe’s Plumbing and Mark’s Plumbing have different ways of charging their customers. The function defined by J(t)=45t represents the total amount in dollars that Joe’s Plumbing charges for t hours of work.
Mark’s Plumbing charges $40 per hour plus a $25 trip charge.
Which plumbing service company has a higher rate per hour? Justify your answer.
What domain values for both functions are reasonable in this context? Justify your answer.
Leyla needs to hire a plumber to fix a few things around her house. She will need plumbing service for a total of 3 hours. Which plumbing service should she go with to save money? How much will she save? Justify your answer.
Answer:
Joe's Plumbing charges more per hour ($45) than Mark's Plumbing (S40)
Step-by-step explanation:
Convert -145 degrees to radians.
Answer:
[tex]\frac{-29}{36}[/tex]π
Step-by-step explanation:
Show steps to solve
2-16.5=4-7.5
Answer:
2-16.5 = 4-7.5
2-16.5 4-7.5
= -14.5 = -3.5
-14.5 = -3.5
Step-by-step explanation:
I don't know where you are getting this question, but I did what I could I guess.
Someone Plz Help Will give brainlist to whoever answers first!!!
Write an equation in point-slope form of the line that passes through the point (3,3) with slope 5/3.
Answer:
i dont get this question that ur asking but im very good at slope so this is what ive come up with> 3-3
5-3 so its zero slope
Step-by-step explanation:
hopefully this answered your question
Evaluate the expression below for x=7 3x +2 |x-8| -12
NEED HELP IMMEDIATELY
Answer:
11
Step-by-step explanation:
You plug in the 7 onto x
3(7) + 2 |(7) - 8| - 12
= 21 + 2 |-1| - 12
= 21 + 2(1) - 12
= 23 - 12
= 11
Answer:
11
Step-by-step explanation:
This is correct. I got it correct on a Algebra quiz.
Mr. Ramsey bought 5 pounds of dog food for $10. How much did he pay per pound in dollars?
$15.00 per pound
$5.00 per pound
$50.00 per pound
$2.00 per pound
Answer:
$2.00 per pound
Step-by-step explanation:
10/5=2
Answer: 2.00 per pound
Step-by-step explanation:
2 divided by 5= 0.4
select all that apply which decimals in the list are repeating decimals
5/6
4/15
3/5
1 3/4
1/3
4/1000
Answer:
I believe it's 1/3 hope it's right :)
Answer:
1/3 , 4/15 , 5/6
Step-by-step explanation:
All you have to do is plug the fractions in your calculator and you see that 1/3, 4/15, and 5/6 are repeating, but the others stop after only a couple of decimal places.
Hope this helps!
The recipe for beef stew calls for 1/4 teaspoon of pepper for every 3 potatoes. If 9 potatoes are used, how much pepper is needed?
Solve the proportion StartFraction one-fourth over 3 EndFraction = StartFraction p over 9 EndFraction to answer the question.
Explain your steps:
Answer:
3/4 or .75 teaspoons for 9 potatoes.
Step-by-step explanation:
1/4:3 is the original ratio. In order to find the equivalent ratio when 3=9, you would have to multiply.
3x3=9
1/4x3=.75
Answer:
1/4 over 3 = p/9
Step-by-step explanation:
A librarian wants to estimate the percentage of students at his high school who complete their homework each night. Because many students come to the library each morning to study, the librarian surveys the first 40 students who enter. Which type of bias is present, and how does this affect the sample results?
A)There is no bias in this survey because the students were randomly chosen.
B)There is nonresponse bias because the results underestimate the true percentage of students who complete their homework nightly.
C)There is response bias because the results underestimate the true percentage of students who complete their homework nightly.
D)There is convenience sampling bias because the results overestimate the true percentage of students who complete their homework nightly.
E)There is voluntary response bias because the results overestimate the true percentage of students who complete their homework nightly.
Answer:
around 30 or higher does that give u a clue?
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
all of the following are terminating decimals except__.
17/50
1/8
2/3
2/5
Answer:
17/50=0.34
1/8=0.125
2/5=0.4
2/3=0.6667
Step-by-step explanation:
A t-shirt increased in price by
1
—
4
. After the increase it was priced at £20. What was the original price of the t-shirt?
Answer:
16
Step-by-step explanation:
Find the quotient −40÷20.
Answer:
-2
Step-by-step explanation:
Step-by-step explanation: -40/20=-2, 20x-2=-40.