Answer:
c
Step-by-step explanation:
y-intercept is the function value at x = 0, and we can always substitute x = 0 into the quadratic. Thus, the y-intercept of the quadratic function
y = ax2 + bx + c is c.
Evaluate.
(15+12)2+310⋅5
Enter your answer as a mixed number in simplest form by filling in the boxes.
$$
HURRY PLEASE ILL GIVE BRAINLIEST
Answer:
(15+12)/2 + 310x5
BPEMDAS (brackets, parentheses, exponents, multiplication, division, additio, subtraction)
27/2 + 1550
13 1/2 + 1550
1563 1/2
:)
Answer:1./4
Step-by-step explanation:
o
What is the value of x?
Answer: 71
Step-by-step explanation:
An isosceles triangle has two equal angles. The sum of a triangle is 180 degrees so the answer of x is 71 degrees.
The Phillips family and the Griffin family each used their sprinklers last summer. The water output rate for the Phillips family's sprinkler was 25L per hour. The water output rate for the Griffin family's sprinkler was 15L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 975L. How long was each sprinkler used
Last summer, both the Griffin family and the Phillips family used their sprinklers. 15 hours of use by Philips family,40 hours of use by Griffin family for each sprinklers.
Given that,
Last summer, both the Griffin family and the Phillips family used their sprinklers.
The sprinkler used by the Phillips family produced 25L of water every hour.
The Griffin family's sprinkler produced 15L of water per hour.
The households utilized their sprinklers for a total of 55 hours in total, producing 975L of water.
We have to find how long did you use each sprinkler.
Let us take
p be hours of use by Philips family
55-p be hours of use by Griffin family
Now, we get
25p+15(55-p)=975
25p+825-15p=975
10p=975-825
10p=150
p=150/10
p=15
55-p=55-15=40
Therefore, 15 hours of use by Philips family,40 hours of use by Griffin family.
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a line passes through the point (-4,7) and has a slope of 5/2.
write an equation in point-slope form for this line
15 points!!
Answer:
(9,20)
Step-by-step explanation:
9 and 20 together... (9,20)
NEED ANSWER ASAP!!!!!!!!!!
Find the slope from the following points:
(-9,3) (0,-7)
10/9
-10/9
-4/9
4/-9
Answer: -10/9
Step-by-step explanation:
Slope = (y2 - y1) / (x2 - x1)
= (-7 - 3) / (0 - (-9))
= (-7 - 3) / (0 + 9)
= -10 / 9
if last month was july what month will it be 21 months from now?
Answer:
I think it's may
Step-by-step explanation:
I I not for sure tho
Answer:
April
Step-by-step explanation:
Have a good day!
1. What is the slope of the line y = 5x +4?
=
Answer:
5 is the slope
Step-by-step explanation:
Because the equation is y=mx+b
m=slope and b=y intercept
Answer:
The slope of the line y = 5x + 4 is 5.
Step-by-step explanation:
In the equation y = mx + b,
m represents the slope
b represents the y-intercept.
In the equation y = 5x + 4, 5 takes place of m. Since this is the case, m = 5, or 5 is the slope.
For A BRAINLST PLEASE HELP ASAP
Step-by-step explanation:
listen in class.
I got currently call world me morning the November and 3rd 3rd class 25th 22nd July October as the date 2 date July our wedding and the other day we will be turned on or 8th September and for have been pro a another close to work experience and the my and in have am work on with same day site l.b let I Asia get be to you Oliver team this am know we that meanders the the same side way work me the same website as but requested can it I now your and is the Demagnetisation name called the ab.
Enter a linear equation that models the situation.
A drugstore sells pens for $1.50 each and notebooks for $4 each. The owner would like to sell $45 of these items each day. Use p for the number of pens and n for the number of notebooks.
A linear equation that models the situation is = 45.
2 out of 10 is what percent
Answer:
it would be 20%
Step-by-step explanation:
..........................
Timothy and Juan are completing their homework and are having a debate about a linear equations question.Timothy said 2 + 6 (x-4) = 3x -18 + 3x has no solution, but Juan said he could prove a value existed that can be substituted for x to make it a true statement. Who is correct? Justify your reasoning. plz help i need this grade
Answer:
We're asked to solve this system of equations:
\begin{aligned} 2y+7x &= -5\\\\ 5y-7x &= 12 \end{aligned}
2y+7x
5y−7x
=−5
=12
We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:
\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}
2y+7x
+ 5y−7x
7y+0
=−5
=12
=7
Solving for yyy, we get:
\begin{aligned} 7y+0 &=7\\\\ 7y &=7\\\\ y &=\goldD{1} \end{aligned}
7y+0
7y
y
=7
=7
=1
Plugging this value back into our first equation, we solve for the other variable:
\begin{aligned} 2y+7x &= -5\\\\ 2\cdot \goldD{1}+7x &= -5\\\\ 2+7x&=-5\\\\ 7x&=-7\\\\ x&=\blueD{-1} \end{aligned}
2y+7x
2⋅1+7x
2+7x
7x
x
=−5
=−5
=−5
=−7
=−1
The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.
We can check our solution by plugging these values back into the original equations. Let's try the second equation:
\begin{aligned} 5y-7x &= 12\\\\ 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12\\\\ 5+7 &= 12 \end{aligned}
5y−7x
5⋅1−7(−1)
5+7
=12
=
?
12
=12
Yes, the solution checks out.
If you feel uncertain why this process works, check out this intro video for an in-depth walkthrough.
Example 2
We're asked to solve this system of equations:
\begin{aligned} -9y+4x - 20&=0\\\\ -7y+16x-80&=0 \end{aligned}
−9y+4x−20
−7y+16x−80
=0
=0
We can multiply the first equation by -4−4minus, 4 to get an equivalent equation that has a \purpleD{-16x}−16xstart color #7854ab, minus, 16, x, end color #7854ab term. Our new (but equivalent!) system of equations looks like this:
\begin{aligned} 36y\purpleD{-16x}+80&=0\\\\ -7y+16x-80&=0 \end{aligned}
36y−16x+80
−7y+16x−80
=0
=0
Adding the equations to eliminate the xxx terms, we get:
\begin{aligned} 36y-\redD{16x} +80&=0 \\ {+}~-7y+\redD{16x}-80&=0\\ \hline\\ 29y+0 -0&=0 \end{aligned}
36y−16x+80
+ −7y+16x−80
29y+0−0
=0
=0
=0
Solving for yyy, we get:
\begin{aligned} 29y+0 -0&=0 \\\\ 29y&=0 \\\\ y&=\goldD 0 \end{aligned}
29y+0−0
29y
y
=0
=0
=0
Plugging this value back into our first equation, we solve for the other variable:
\begin{aligned} 36y-16x+80&=0\\\\ 36\cdot 0-16x+80&=0\\\\ -16x+80&=0\\\\ -16x&=-80\\\\ x&=\blueD{5} \end{aligned}
36y−16x+80
36⋅0−16x+80
−16x+80
−16x
x
=0
=0
=0
=−80
=5
The solution to the system is x=\blueD{5}x=5x, equals, start color #11accd, 5, end color #11accd, y=\goldD{0}y=0y, equals, start color #e07d10, 0, end color #e07d10.
Want to see another example of solving a complicated problem with the elimination method? Check out this video(Opens in a new window).
Step-by-step explanation:
What is the reciprocal of 5
Answer:
1/5 or 0.2
Step-by-step explanation:
Reciprocal is when you flip the number
5 = 5/1 so flip the 1 and 5 to get 1/5
In order to find the reciprocal of a number, we should flop it over, like so:-
[tex]\sf{The~reciprocal~of~a~is~\displaystyle\frac{1}{a}}[/tex]
According to the formula, the reciprocal of 5 is:-
[tex]\sf{\displaystyle\frac{1}{5}}[/tex]
note:-Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)
Which of the following is the graph of the equation y=−x?
Answer:
The first image
Step-by-step explanation:
y=mx+b
The variable b represents the y-intercept, since there is no b in this equation, we know that the y intercept in 0.
The variable "mx" is represented in this equation as -(1)x. "mx" is slope.
help asap help asap for brainlist
part A and Part B
Answer:
part A:
32.10
part B:
156 miles
Step-by-step explanation:
A scale model of a rectangular living room is 6 3/4 inches by 5 1/2 inches. If 1 inch represents 3 feet of the actual room, find the area of the actual room.
The actual area of the room after unit conversion will be equal to 334 1/8 feet².
What is area?An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely encompass the surface of a compact figure. The squared unit, which is frequently expressed as inches, square feet, etc., is the accepted unit of area.
As per the data mentioned in the question,
Let the length of the room, l = 6 3/4 inches = 27/4 inches
1 inch = 3 feet
27/4 inch = 81/4 feet
Let the width of the room, w = 5 1/2 inches = 11/2 inches
1 inch = 3 feet
11/2 inches = 33/2 feet
Now, use the formula of the area of the rectangle,
A = wl
A = 33/2 × 81/4
A = 2672/8 feet²
Or, it can be written in mixed fraction form as 334 1/8 feet².
To know more about the area:
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Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.
Answer:
D. Step 5Step-by-step explanation:
Andrew made a mistake at last step.
It should be:
-11.8 + 9.8 = 9.8 - 11.8 = -2 but not -21.6The area of Australia/Oceania is approximately 7.69 × 106 square kilometers. Its population is approximately 3.11 × 107 people. What is the approximate population density (people per square kilometer) of Australia/Oceania? Write your answer in standard form. If necessary, round your answer to the nearest hundredth.
PLEASSSSEEEE HELPPPPPPPPPPP
Answer: 3.11*10^7/7.69*10^6
3110/769
4.04
Step-by-step explanation:
(2^-4)^-3 what is the answer to this math problem i really need help
Step-by-step explanation:
[tex] = { ({2}^{ - 4}) }^{ - 3} [/tex]
[tex] = {2}^{ - 4 \times ( - 3)} [/tex]
[tex] = {2}^{12} [/tex]
[tex] { ({2}^{ - 4}) }^{ - 3} = {2}^{12} [/tex]
Chelsea is graphing the function f(x) = 20(One-fourth)x. She begins by plotting the initial value. Which graph represents her first step?
On a coordinate plane, the point (0, 0.25) is graphed.
On a coordinate plane, the point (0.25, 0) is graphed.
On a coordinate plane, the point (0, 20) is graphed.
On a coordinate plane, the point (20, 0) is graphed.
Answer: C
Step-by-step explanation: : Chelsea is graphing the function f(x) = 20(\frac{1}{4})^xf(x)=20( 41 ) x
Answer:
On a coordinate plane, the point (0, 20) is graphed.
Step-by-step explanation:
Edge
Tom is twice as old as Marie
Marie is 5 years older than kay
The total of their ages is 43
How old is Marie
Answer:
Marie is 9.5 years old
Step-by-step explanation:
In pic
__________________________________
(Hope this helps can I pls have brainlist (crown)☺️)
There are four defenders on a soccer team. If this represents 20 percent of the players on the team, which equation can be used to find the total number of players on the team?
StartFraction 4 divided by 1 Over 20 divided by 1 EndFraction = StartFraction 4 Over 20 EndFraction
StartFraction 4 times 20 Over 100 times 20 EndFraction = StartFraction 80 Over 200 EndFraction
StartFraction 20 times 25 Over 4 times 25 EndFraction = StartFraction 500 Over 100 EndFraction
StartFraction 20 divided by 5 Over 100 divided by 5 EndFraction = StartFraction 4 Over 20 EndFraction
Answer:
D. (20/ 5) /(100/5) = 4 / 20Step-by-step explanation:
Four defenders on a soccer team represents 20 percent of the players on the team.
If the total number is x, it can found as:
4 = 20%x = 100%x = 4*100/20 = 4*5 = 20Correct choice with same outcome is D
the perosn abocve me is right
Step-by-step explanation:
Help me please please please
Answer:
see below
Step-by-step explanation:
[tex]\frac{15}{20} = \frac{3}{4} = 0.75[/tex]
[tex]\frac{6}{11} = 0.545455[/tex]
[tex]\frac{3}{16} = 0.1875[/tex]
[tex]\frac{4}{16} = \frac{1}{4} = 0.25, 2^{-2}[/tex]
[tex]\frac{2}{12} = \frac{1}{6} = 0.16 (with-a-dot-over-the-6-from-16), 6^{-1}[/tex]
hope I could help
i need help plz plz plz
Step-by-step explanation:
The answer is
X=23
Hope it helpsss
How many x-intercepts does the parabola with the following
equation have?
y= -x^2-6x-17
Step-by-step explanation y= -x^2-6x-17
y+-(x+3)2_8
When baking a cake, you must combine the dry ingredients first. Then, mix the liquids. Finally, combine them all together and pour into a baking pan. Bake for 35 minutes at 350 degrees. What is the text structure?
Answer:
Chronological
Step-by-step explanation:
These texts organize events in the order they happened. This structure is common in current events, history and in works of fiction or memoir. Key words include time markers like “first,” “next,” “then” and “finally.”
Ricardo calculates a line of best fit for a data set with integer x-values 1 through 6. Complete the sentence with the correct word
Using a line of best fit with the equation y = -3x+21 to predict the value of y when x = 10 is an example of
Choose...
correlation
extrapolation
interpolation
causation
This type of prediction is extrapolation
Give the equation for the line of best fit expressed as:
y = -3x + 21
If x = 10, substitute the value of x into the function to get y
y = -3(10) + 21
y = -30 + 21
y = -9
This type of prediction is extrapolation. Extrapolation has to do with estimating a value given that a particular variable is given.
Learn more on extrapolation here: https://brainly.com/question/12862813
At noon, the temperature is 76°F.
At 9:00 p.m., the temperature is 57°F.
What is the percent change between the temperature at noon and the temperature at 9:00 p.m.?
Answer:
25%
Step-by-step explanation:
% Change = Change ÷ Original × 100
% Change = 19 ÷ 76 × 100
% Change = .25 × 100
% Change = 25
Answer:
Step-by-step explanation:
What letter on this number line represents -(3/2)?
Answer:
B
Step-by-step explanation:
- 3/2 is - 1.5 , and B is - 1.5
True or false. A perpendicular bisector can also be an altitude.
Answer:
True
Step-by-step explanation:
If there is an equilateral triangle or just a triangle that the vertex and midpoint on the bottom segment line up, then a perpendicular bisector and altitude can be the same thing.
Add: 19|12 + 25|12 Simplify my Answer.
Answer:
8436
Step-by-step explanation:
19(|12+25|)(12)
=8436
