Answer:
30%
Step-by-step explanation:
Answer:
30℅
Step-by-step explanation:
hopefully this helps :)
Please answer: is y = 4x - 9 a function?
Answer:
Yes.
Step-by-step explanation:
Yes.
y = 4x - 9 is the equation of a line with slope 4and y-intercept -9.
All non-vertical lines are functions.
Since a line with slope 4 is not a vertical line, this relation is a function.
If f (x) = StartRoot x EndRoot + 12 and g (x) = 2 StartRoot x EndRoot, what is the value of (f – g)(144)?
–84
–60
0
48
Answer:
c
Step-by-step explanation:
just did the quiz
Answer:
the answer is 0
hope this helps;)
3 Select the correct answer. The variable y varles directly as x. When x = 20, y= 12. What is the value of y when x= 15?
А. 7 B. 9 C. 18 D. 25
Answer:
B.9
Step-by-step explanation:
What I did is I used ratio.
20:12
15:X
Cross multiply:15x12
Answer:180
The answer you get divided by 20.
180/20=9.
Answer:
B
Step-by-step explanation:
Given y varies directly as x, then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition when x = 20, y = 12, then
12 = 20k ( divide both sides by 20 )
k = [tex]\frac{12}{20}[/tex] = [tex]\frac{3}{5}[/tex]
y = [tex]\frac{3}{5}[/tex] x ← equation of variation
When x = 15, then
y = [tex]\frac{3}{5}[/tex] × 15 = 9
name the angle pairs shown. Then find the missing angle measure
1. Angle pair
2. M
Answer:
x would be 110 degrees as well and its pair would be the angle opposite of it. The other pair of angles would be the ones next to it. Those equal250 degrees.
Step-by-step explanation:
28.What is the slope of the line 2x + 5y = 15?
A. 2
B. -2
C.2/5
D.- 2/5
Answer:
it's -2/5 !
Step-by-step explanation:
PLEASE HURRY I AM ON THE QUIZ!!!
which expression is equivalent to -3(4x-0.50)?
–12x – 1.50
–12x + 1.50
–12x – 2.50
–12x – 3.50
Answer:
number two
Step-by-step explanation:
-3 times 4x equals -12x and -3 times -.5 is +1.5 !
If you roll a standard 6 sided die one time what is the probability of getting 3 or even number
Which equation gives the number of 1/4 centimetre that are in 7/8 centimetres
Answer:
2/8
Step-by-step explanation:
the radius of a circle is 3 cm. Find it's area in terms of pi. 28.27 cm2 is wrong
Answer:
9[tex]\pi[/tex]
Step-by-step explanation:
The reason why that is wrong is because it says in terms o pi which means you do NOT multiply pi by the radius squared.
EQUATION FOR AREA OF A CIRCLE: [tex]\pi r^{2}[/tex]
When you put it all together you get: [tex]\pi * 3^{2}[/tex] which equals [tex]9\pi[/tex]
DO NOT MULTIPLY 9 AND PI. IT'S JUST 9[tex]\pi[/tex]
hope this helped :)
Please help
Much appreciated
Answer: First one, 25x^2y^22
Step-by-step explanation:
if you multiply y^5*2 you get y^10 and x^2
that makes x^2y^10
then, if you multiply y^3*4 you get y^12
so you have to add the y s that makes x^2y^22
What is equivalent to the quotient of 10 plus x and y minus 3
Answer:
So answer is [tex]\frac{10+x}{y-3}[/tex]
Step-by-step explanation:
We are given with quotient of 10 plus x and y minus 3.
So, we can write 10 plus x as 10+x and y-3
So, quotient of 10+x and y-3 is [tex]\frac{10+x}{y-3}[/tex]
Can anyone please answer these? Who ever answers correctly will be marked brainliest.
1. Find the absolute value of |8 + y| when y = 2
2. Find the absolute value of |-8 + y| when y = -2
3. Simplify: 4 + |x + 2| when x = -5
Answer:
1. x = ±3
2. x = 13 over 5
3. –4x + 7
Answer:
1)10
2)10
3) 7
Step-by-step explanation:
Modulus means we always take the positive value for example
|-3| = +3
1) Find the absolute value of |8 + y| when y = 2
[tex]|8+2| \\|10|\\10[/tex]
2) Find the absolute value of |-8 + y| when y = -2
[tex]|-8+(-2)|\\|-8-2|\\|-10|\\10[/tex]
3) Simplify 4 + |x + 2| when x = -5
[tex]4 + |x + 2|\\4+|-5+2|\\4+|-3|\\4+3\\7[/tex]
m=rise/run
m=?
b=?
equation:?
PLEASE HELP!!
Write a paragraph to proof to show that if <1 and <2 are congruent supplementary angles, then <1 and <2 are right angles
Answer:
Step-by-step explanation:
Supplementary angles are two or more angles whose the addition of their measures add up to [tex]180^{o}[/tex].
Given: <1 and <2.
<1 + <2 = [tex]180^{o}[/tex] (supplementary angles)
If <1 ≅ <2 (congruent property), then we have;
<1 + <1 = [tex]180^{o}[/tex]
2<1 = [tex]180^{o}[/tex]
<1 = [tex]\frac{180}{2}[/tex]
= [tex]90^{o}[/tex]
<1 = [tex]90^{o}[/tex]
So that since <1 and <2 are congruent, then;
<1 ≅ <2 ≅ [tex]90^{o}[/tex]
Therefore if <1 and <2 are supplementary and congruent, then they are right angles.
Sarah and Jack are selling popcorn and cotton candy at the State Fair. Sarah sold 3 bags of
popcorn and 9 sticks of cotton candy for a total of $75. Jack sold 8 bags of popcorn and 5
sticks of cotton candy for a total of $67. Which is cost of the popcorn?
A bookstore pays $12.75 for hardcover books and charges $29.95. What is the maximum percent of discount that it can offer while still making a profit of $5 on each book?
a.
40.7%
c.
44.2%
b.
54%
d.
59.6%
Please select the best answer from the choices provided
A
B
C
D
9514 1404 393
Answer:
A. 40.7%
Step-by-step explanation:
The selling price for a $5 profit will be ...
$12.75 +5.00 = $17.75
From $29.95, this represents a change of ...
(17.75 -29.95)/29.95 × 100%
= -12.20/29.95 × 100% ≈ -40.7346%
The bookstore can offer a maximum discount of about 40.7%.
Answer:
The answer is A.
Step-by-step explanation:
I got it from my calculator.
A store is having a sale on walnuts and chocolate chips. For 4 pounds of walnuts and 8 pounds of chocolate chips, the total cost is $25. For 2 pounds of walnuts and 3 pounds of chocolate chips, the total cost is $10. Find the cost for each pound of walnuts and each pound of chocolate chips.
Answer:
The cost of each pound of walnuts is $1.25 and each pound of chocolate chips is $2.50
Step-by-step explanation:
Let,
x be the price per pound of walnuts
y be the price per pound of chocolate chips
According to given statement,
4x+8y=25 Eqn 1
2x+3y=10 Eqn 2
Multiplying Eqn 2 by 2
2(2x+3y=10)
4x+6y=20 Eqn 3
Subtracting Eqn 3 from Eqn 1
(4x+8y)-(4x+6y)=25-20
4x+8y-4x-6y=5
2y=5
Dividing both sides by 2
[tex]\frac{2y}{2}=\frac{5}{2}\\y=2.50[/tex]
Putting y=2.50 in Eqn 2
2x+3(2.50)=10
2x+7.50=10
2x=10-7.50
2x=2.50
Dividing both sides by 2
[tex]\frac{2x}{2}=\frac{2.50}{2}\\x=1.25[/tex]
Hence,
The cost of each pound of walnuts is $1.25 and each pound of chocolate chips is $2.50
What is the solution of the system of equations below? Solve for x and y
4x+9y=14
4x+5y=6
Answer:
y = 2
Step-by-step explanation:
(4x+9y)-(4x+5y) = 14-6
4x-4x+9y-5y = 8
4y = 8
y = 2
Hope this helped!
Whoever answers right are marked as Brainly is
Answer:
The answer is y=-x+4 and y=-3x+2
Step-by-step explanation:
Answer:
y = x + 4 and y = 3x + 2
Step-by-step explanation:
Both of the lines slopes are positive, and for the equation of y = 3x + 2, the slope is 3 rather than [tex]\frac{1}{3}[/tex] because it goes up 3 then to the right 1 rather than up 1 and to the right 3.
PLEASE PLEASE ANSWER :(
Construct a polynomial function with the stated properties. Reduce all fractions to lowest terms.
Third-degree, with zeros of −3, −2, and 1, and passes through the point (4,10)
Answer:
0
Step-by-step explanation:
How would i solve this problem example optional
The record low for Florida is 2 degrees below zero Fahrenheit and was set on February 13, 1899. The record high is 109 degrees Fahrenheit and was set on June 29, 1931. Which pair of numbers shows these temperatures, in degrees Fahrenheit, written as integers?
2 and 109
2 and -109
-2 and -109
Answer:
-2 and 109
Step-by-step explanation:
just put that
Answer 2 and -109
Step-by-step explanation:
I did the test
A whale descends 382.5 feet in 45 seconds. What operation can be used to find the average elevation change of the whale during its descent, in feet per second.
Answer:
8.5 FPS
Step-by-step explanation:
What is the slope of the line that passes through the following points:
(4,-3), (-5, 10)
Answer:
M= -13/9
Step-by-step explanation:
use y=mx+b formula
Alejandra wants to buy some hot dogs at the store. Each hot dog costs $0.75. If she has $15 to spend, how many hot dogs can she buy?
Answer:___hot dogs
Answer:
20 hot dog
Step-by-step explanation:
Divided by 15 by .75
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.
1. Change the equation to slope intercept form. Identify the slope and y- intercept of the equation. Be sure to show all your work.
2x + 3y= 1470
2x + 3y -2 = 1470 subtract 2x from both sides
3y= 1470 -2x simplify
3y/3= 1470/3 -2x/3 divide both sides by 3
y= -2/3x +490 simplify
-⅔ is the slope and 490 is the y- intercept
2. Describe how you would graph this line using the slope- intercept method. Be sure to write in full sentences.
Start at 490 on the y axis. After that you would use rise over run, down 2 units and right three. Do this until you reach the end of the graph, then go oppisite; up 2 left 3
3. Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences.
I CANNOT figure out how to make the equation into notation form. Can someone please help?
Answer:
y = x^4-6
y=1/ x-2
Step-by-step explanation:
hope this helps
10th Grade Algebra/Geometry class
Answer:
x=4
Step-by-step explanation:
divide the x-value by the y-value. 9/36 =0.25.
0.25*16=4
x=4.
A school district is planning on buying new desks for its classrooms. Each secondary classroom is to have 5 more desks than an elementary classroom. For 20 elementary classrooms and 25 secondary classrooms, a total of 1,115 desks are needed.
How many desks are to be in each secondary classroom?
Answer:
27
Step-by-step explanation:
Need help thank you very much
Answer:
The answer to the question provided is
[tex] \frac{5}{24} [/tex]
Answer:
5/24
Step-by-step explanation:
0.21 is the decimal form
The length of segment EF is 8 units, the length of segment ED is 10 units, and the length of segment EA is 13.33 units. Find the length of FA Explain or show your reasoning,
Answer:
5.33 unit
Step-by-step explanation:
logically FA = EA - EF = 13.33-8 = 5.33 units
Since, E, F and A all lie on the same line EA . The information ED= units is redundant. Therefore we can say that FA= 5.33 unit
The length of FA is 5.33 units
The given parameters are:
[tex]\mathbf{EF = 8}[/tex]
[tex]\mathbf{ED = 10}[/tex]
[tex]\mathbf{EA = 13.33}[/tex]
EF and EA implies that point E is between line FA
So, the length of FA is calculated using:
[tex]\mathbf{FA = EA - EF}[/tex]
Substitute known values
[tex]\mathbf{FA = 13.33 - 8}[/tex]
Subtract
[tex]\mathbf{FA = 5.33}[/tex]
Hence, the length of FA is 5.33 units
Read more about lengths at:
https://brainly.com/question/18983323