Answer:
[tex]y=-4x^{2} +7x+6\\[/tex]
Step-by-step explanation:
[tex]y=ax^{2} +bx+c\\[/tex]
Points are (1,9), (2,4), and (4,-30).
[tex]\\9=a+b+c\\4=4a+2b+c\\-30=16a+4b+c\\[/tex]
Subtract the first from the second.
-5 = 3a+b
Subtract 4 times the second from the third.
-34=12a+2b
-14=-2b
b=7
a=-4
c=6
LAST QUESTION PLS HELP idk if you can see it all
Answer:
C is the right answer
Step-by-step explanation:
Round 3.582307 to the nearest thousandth
Answer:
3.582
Step-by-step explanation:
Find the number in the thousandth place 2 and look one place to the right for the rounding digit 3 . Round up if this number is greater than or equal to 5 and round down if it is less than 5 .
3.582
Hope this helps!! Please consider marking brainliest!!
the diagram shows a right angles triangle ABC. BC = 10 cm. angle CAB = 90 degrees. angle ABC = 30 degrees. M is the midpoint of AB. Work out the size of angle AMC.
Answer:
angle AMC=49.1
Step-by-step explanation:
f(x) = 14 - 8x
g(x) includes points in the table shown.
Find the difference when the y-intercept of f(x) is subtracted from the y-intercept of g(x).
х
3
Ja
6
9
12
15
HA
12
17
22
Answer:
go to desmos it a online graphing calculator that helps with the intercepts
Step-by-step explanation:
Sara earns a weekly salary of $400 plus commission of 6.5% on sales at the clothing store where she works. How much would she earn in one week if she sold $1200 worth of merchandise? Sara would earn $______ for that week.
Answer: Sara would earn $478 for that week
Step-by-step explanation:
1. Sara's weekly salaries is $400, and she gets 6.5% on sales at her work.
2. In order to find how much she would get from the commission of $1200 worth of merchandise they sold, we need to find the 6.5% of 1200
Step 1: Our output value is 1200.
Step 2: We represent the unknown value with x.
Step 3: From step 1 above, 1200=100%.
Step 4: Similarly, x=6.5%.
Step 5: This results in a pair of simple equations:
1200=100%(1).
x=6.5%(2).
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both equations have the same unit (%); we have
[tex]\frac{1200}{x} = \frac{100}{6.5}[/tex]
Step 7: Again, the reciprocal of both sides gives
[tex]\frac{x}{1200} =\frac{6.5}{100}[/tex]
⇒[tex]x=78[/tex]
Therefore, 6.5% of $1200 is $78
3. you would then need to add 400 + 78 and you get a total of $478
The airplane Li’s family will be flying on can seat up to 149 passengers. If 96 passengers are currently on the plane, which inequality can be used to determine how many more people can board? 96 + x Less-than-or-equal-to 149 96 + x Greater-than-or-equal-to 149 96 + x > 149 96 + x < 149
Answer:
96 + x Less-than-or-equal-to 149
Step-by-step explanation:
no more than 149 people can board so if it was "more" than 149 then it would be incorrect.
Answer:
A is correct
Step-by-step explanation:
During a two-hour period, the temperature in a city dropped from a high of 49°F to a low of −19°F. What was the range of the temperatures during this period?
Answer: 68°F
Step-by-step explanation:
To find the range for a set of numbers that are given, we subtract the lowest number from the biggest number. In this case, we subtract the lowest temperature from the highest temperature. This will be:
= 49°F - (-19°F)
= 49°F + 19°F
= 68°F
Based on the temperatures observed in that time, the range of temperatures would be 68 ° F.
The range is acquired by subtracting the lower figure from the higher figure:
= Higher temperature - Lower temperature
Solving would give:
= 49 - ( - 19)
= 49 + 19
= 68 ° F
In conclusion, the range is 68 °F
Find out more about range at https://brainly.com/question/20259728.
NEED HELP ASAP!!!
Choose an equation for the line that is parallel to the given line and passes through the given point for questions 1 and 2.
1. y = 5x + 10; (2, 14) (1 point)
A.) y=-x+4
B.) y=-x-4
5
C.) y=5x - 68
D.) y=5x + 4
Answer D
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Which ordered pair is a solution of the equation? Y = 7x - 3
Answer:
y-intercept: ( 0 , − 3 )
x-intercept: ( 3 7 , 0 )
Step-by-step explanation:
What’s the answer for this?? Help (foolish answers will be reported)
Answer:
the answer is b
Step-by-step explanation:
they should have the same slope so just looking at that you cancel out d. But since it says has a y-intercept of 1 then it would cancel out the other 2. d is perpendicular to it not parallel
Answer:
b. [tex]y=5x+1[/tex]
Step-by-step explanation:
Slope-intercept form:
[tex]y=mx+b[/tex]
m is the slopeb is the y-interceptx and y are the corresponding coordinate points (x,y)When two lines are parallel, their slopes are the same. Note the slope of the given equation:
[tex]y=5x+7\\\\m=5[/tex]
The slope is 5, so the slope for the parallel equation will also be 5:
[tex]y=5x+b[/tex]
Now insert the given y-intercept:
[tex]b=1\\\\y=5x+1[/tex]
:Done
Jedi donated bottles of alcohol.If 201 of boxes are filled with 42 bottles of alcohol how many bottles of alcohol were donated?
Answer:
8,442 bottles of alchohol were donated.
Step-by-step explanation:
201×42= 8,442
Can anyone calculate the rise/run for this?
Answer:
0
Step-by-step explanation:
The slope of any horizontal line will be zero.
Answer:
slope = m = rise/run = 0/8 = 0
Step-by-step explanation:
Well rise/run is how much it rises over how much it runs.
Note it rises by 0 so 0 on top,
Therefore;
no matter it be 0/1 or 0/1241213261238126836128361 the rise/run also known as slope is always gonna be 0
Reasoning:
0 divided by anything is always 0
Hope this helps
please help im stuck and i dont have time
Answer:
a. [tex]3x^{2} \\\\[/tex]
b. [tex]5x+1[/tex]
Step-by-step explanation:
Which sequence shows the numbers in order from least to greatest?
How to convert decimal into an exponential form
Answer:
Step-by-step explanation:
The exponents are negative instead of positive. so if you have like .00000000001. that would be 1.0X10^-11
in the diagram below, B is the midpoint of AC and D is the midpoint of BC, which of the following statements is true?
(1) AC = 1/2BC (3) BD = 1/2AD
(2) AC=4DC (4) AC = 3BD
Answer:
2
Step-by-step explanation:
Rewrite the equation y=x^2−5x−6 in factored form and find the zeros of the equation. Then use the zeros to find the line of symmetry of the parabola represented by the equation.
What is the equation for the line of symmetry of the parabola represented by the equation y=x^2−5x−6?
x=−2.5
x=2.5
x=0.5
x=−3.5
x=3.5
x=−0.5
Hi there!
[tex]\large\boxed{x = 2.5}[/tex]
y = x² - 5x - 6
Rewrite into factored form by finding two numbers that sum up to -5 and multiply into -6. We can use the numbers -6 and 1:
y = (x - 6)(x + 1) is the equation in factored form.
There are zeroes at:
0 = x - 6
x = 6
0 = x + 1
x = -1
Find the x-value exactly half-way between the two zeroes to find the axis of symmetry:
(-1 + 6) / 2 = 5 / 2 = 2.5
Therefore, the equation for the line of symmetry is:
x = 2.5
PLS HELP ASAP IM TAKING A EXAM
4/15 as a decimal rounded to the nearest hundredth
Answer:
Step-by-step explanation:
I needed points ⬛️⬛️
Plz help! (picture below) Will mark brainliest or correct one!
You mean like graph? Yeah.
Write in Function form
[tex]\frac{y-3}{x-6}=2\\y-3=2(x-6)\\y=2(x-6)+3\\y=2x-12+3\\y=2x-9[/tex]
So (y-3/x-6)=2 does represent "line"
[tex]\frac{y-6}{x-4}=5[/tex]
multiply x-4 all side.
[tex]y-6=5(x-4)[/tex]
Notice how the equation is similar to "Tangent" so it's clearly a line.
About reasoning, No idea how to explain but this might help...
Whenever you get rid of the fraction part, it'll leave only y-f(a)=f'(a)(x-a) which is a Tangent Line (It explains it.)
And when you simplify in Function Form, you'll get an exact linear function "[tex]y=mx+b[/tex]"
what is the slope- intercept form of 11x-2y=-14
In
\Delta
Δ
ABC
ABC
,
\angle A
∠A
measures exactly
88
88
o, and
\angle B
∠B
measures greater than
51
51
o. Which of the following best describes the measure of
\angle C
∠C
?
Answer:
Step-by-step explanation:
I will NEVER fly delta again after the incident of 1992!!!! DISGUSTONG
1. What is the probability of an odd outcome?
2. What is the probability of an outcome less than 6?
Answer:
1. 50%
2.[tex]\frac{5}{6}[/tex]
Step-by-step explanation:
1. The way to approach the probability of rolling an odd number is to start with the total numbers. Therefore, each dice has three even sides and three odd sides. Mathematically - 50% chance of landing on the odd number.
2. You have 'P' which represents probability. "N" which is the given ratio of the number of outcome. (NP) total number of the possible outcome.
P = N / NP
Dice has 6 faces. I.E. 1,2,3,4,5,6
= 6
NP, therefore, is the total number of possible outcome.
Faces less than 6. (1,2,4, and 5)
N = 5
P = N / NP = [tex]\frac{5}{6}[/tex] ; it can't be reduced.
you are setting the combination on a four digit lock. you want to use the numbers 6241 but dont care what order they are in
QUICK WHAT IS0.034 is 110 of 0.0034.
Step-by-step explanation:
. We assume, that the number 10 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 10 is 100%, so we can write it down as 10=100%.
4. We know, that x is 0.034% of the output value, so we can write it down as x=0.034%.
5. Now we have two simple equations:
1) 10=100%
2) x=0.034%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
10/x=100%/0.034%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 0.034% of 10
10/x=100/0.034
(10/x)*x=(100/0.034)*x - we multiply both sides of the equation by x
10=2941.1764705882*x - we divide both sides of the equation by (2941.1764705882) to get x
10/2941.1764705882=x
0.0034=x
x=0.0034
now we have:
0.034% of 10=0.0034
Write the following using algebraic notation, using the letter x for any
unknown numbers:
I think of a number, add one, then double the result.
9514 1404 393
Answer:
2(x+1)
Step-by-step explanation:
x . . . I think of a number
x +1 . . . add 1
2(x +1) . . . double the result
Will mark Brainlyest!
Answer:
a
Step-by-step explanation:
Answer:
b and c
Step-by-step explanation:
Write 1over32 as a power of 2
Answer:
32= 2×2×2×2×2=2 power 5
Answer:
[tex]2^{-5}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{-m}[/tex] = [tex]\frac{1}{a^{m} }[/tex]
Given
[tex]\frac{1}{32}[/tex]
= [tex]\frac{1}{2^{5} }[/tex]
= [tex]2^{-5}[/tex]
SOLVE.
1/5x=-10
[tex]1 \div 5x = - 10[/tex]
Answer: X = -50
Step-by-step explanation:
1. 1/5x = -10
1/5x = -10
2.Multiply by 1
3.Multiply all terms by the same value to eliminate fraction denominators.
4.Simplfiy
A hotel has a budget of $16,000 to buy 84 new mattresses. Each mattress costs $209. The hotel manager says, "Since 80 × $200 = $16,000, I can stay within the budget." Part A Use the drop-down box to tell whether the manager's reasoning is logical. The hotel manager's reasoning Choose... logical. Part B Use the drop-down boxes to explain why the manager's reasoning is or is not logical. Since the manager rounded 84 to 80 and $209 to $200, she found an Choose... . So, the actual total cost is Choose... $16,000.
Answer:
One
Step-by-step explanation:
Bloomingdales pays $56 for a handbag. The markup is 25%. What is the markup? What is the selling price.
Answer:
the markup is 11.2 the original selling price was 44.8
Step-by-step explanation:
25 percent of 44.8 is 11.2 and 44.8 plus 11.2 is 56.
so 11.2 markup and 44.8 selling price