Answer:
y = 10Step-by-step explanation:
The vertex coordinates of f(x) = ax² + bx + c is (h, k)
where: [tex]h=\dfrac{-b}{2a}\ ,\qquad k=f(h)[/tex]
f(x) = - x² - 6x + 1 ⇒ a = -1 b = -6
So:
[tex]h=\dfrac{-(-6)}{2(-1)}=\dfrac6{-2}=-3\\\\y=f(h)=-(-3)^2-6(-3)+1=-9+18+1=10[/tex]
HELPPP FOR BRAINLEST PLEASE
Answer:
4th is correct
Step-by-step explanation:
As the object moves in forword direction
so F2 must have great magnitude.
HOPE THIS HELP YOU FOR ANY QUESTION PLEASE ASK ME
WORTH 25 POINTS AND WILL MARK BRANLIEST Write an expression that can be used to determine the final cost of the cards. ThE ANSWER IS 0.8268 JUST NEED AN EXPRESSION
Answer:
Solve for x
Step-by-step explanation:
The percentage change when a price is £20 decreased to £3
well, the difference is £20 - £3 simply £17.
now, if we take £20 to be the 100%, what is £17 off of it in percentage?
[tex]\begin{array}{ccll} \pounds &\%\\ \cline{1-2} 20 & 100\\ 17& x \end{array} \implies \cfrac{20}{17}=\cfrac{100}{x}\implies 20x=1700 \\\\\\ x=\cfrac{1700}{20}\implies x=85[/tex]
Find the midpoint of the segment with the following endpoints.
(-10, 2) and (-5, -1)
Answer:
(4, 5)
Step-by-step explanation:
= In circle V, VW = 8 and m<WVX = 20°. Find the length of arch W X. Express your answer as a fraction times pi.
The length of the arc WX is the number of units on the arc
The length of the arc WX is [tex]\frac{8}{9} \pi[/tex]
How to determine the length of the arc WX?The given parameters are:
Central angle, m<WVX = 20 degrees
Radius, VW = 8
The length (L) of the arc is calculated as:
[tex]L = \frac{\theta}{360} * 2\pi r[/tex]
Substitute known values
[tex]L = \frac{20}{360} * 2\pi *8[/tex]
Evaluate the product
[tex]L = \frac{320}{360} \pi[/tex]
Simplify the fraction
[tex]L =\frac{8}{9} \pi[/tex]
Hence, the length of the arc is [tex]\frac{8}{9} \pi[/tex]
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the fee for ride tickets at a carnival is shown in the table at the right.
b. can you determine the fee of 30 ride tickets? explain.
The fee for 30 ride tickets is 24.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Fee for ride tickets at a carnival is shown in the table at the right.
5 tickets=5 fee
10 tickets=9.50 fee
15 tickets=13.50 fee
20 tickets=16 fee
We need to find the fee for 30 tickets.
Let x be the fee for 30 tickets
20/16=30/x
Apply cross multiplication
20x=480
Divide both sides by 20
x=24
Hence, the fee for 30 ride tickets is 24.
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Shannon wanted to get at least an 80% on her next test. The test was worth 50 points. How many points will Shannon need to get correct? a. 40
b. 25
c. 30
d. 62.5
Solve the equation.
Round your answer to the nearest hundredth.
8 =-6.6(-8d – 10)
Answer:
d = -1.1
Step-by-step explanation:
Solving
❖ Step 1: Combine like terms.
[tex](-6.6)(-8d) + (-6.6)(-10) = 8[/tex] [tex]52.8d+66=8[/tex]❖ Step 2: Subtract 66 from both sides.
[tex]52.8d+66-66=8-66[/tex] [tex]52.8d = -58[/tex]❖ Step 3: Divide both sides by 52.8.
[tex]52.8d/52.8=-58/52.8[/tex] d ≈ -1.1Therefore, d ≈ -1.1.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Brandi spent 25 mins, which is 5/8 of her class period taking notes. How long was the class period?
Answer:
The class period was 45 minutes long
Step-by-step explanation:
as you can see 5/8 of the class is 25 minutes, meaning that 1 = 5 if we multiply 8 times 5, it gives 45.
Answer: I believe your answer is 40 minutes for Brandi's class period.
Step-by-step explanation: For every 5 minutes she spends in class, it is 1/8 of her total period of class time. For example, she spent 25 minutes and has 15 minutes or 3/8 left of class.
What is the x-coordinate of the midpoint of line segment AB with points A(62, 5) and B(-46, -13).
Answer: 5
Step-by-step explanation:
The x-coordinate of the midpoint of the segment is the average of the x-coordinates of the two endpoints.
Therefore, the x-coordinate of the midpoint of AB is the average of the x-coordinate of A and the x-coordinate of B.
We are given that the x-coordinate of A is 62 and of B is -42.
The average of 62 and -42 = (62-42)/2 = 10/2 = 5
What is the unit circle for sin60
Help pls. Help pls. Help pls.
Answer:
a
Step-by-step explanation:
all other options make no sense
Can someone help me with this? please and thanks <3
Answer:
80.56%
Step-by-step explanation:
So to solve we have the new value over the original value. the new value being the day the 29 workers showed up, and the original value is the full labor force there, so 36.
we get the equation 29/36 which gives us 80.56%
Hope this helps, please rate 5 stars and give brainlest!
Shelly and Mickelle are making a quilt . They have a piece of fabric that measures 48 inches by 168 inches . All pieces of fabric must be none left over . What is the length of the largest square pieces into which shelly and mickelle can cut the fabric
Answer:
24
Step-by-step explanation:
Given the following :
Dimension of fabric = 48 by 168
What is the length of the largest square pieces into which shelly and mickelle can cut the fabric?
To obtain this, find the greatest common factor of both numbers in the dimension:
Using the table format:
___ _48 ____168
_ 2__24 ____ 84
_2__12 _____42
_2__6 _____ 21
_3__3______ 7
Since there is no number which can divide both anymore
The greatest common factor = (2 * 2 * 2 * 3) = 24
PLEASE HELP!
Add -[tex]\frac{4}{y}[/tex] + (-[tex]\frac{7}{8y}[/tex])
Members of the ninth grade class at Pine Ridge High School are organizing into service groups. What is
the minimum number of students who must participate for all students to be divided into groups of 4, 6, or 9 students
with no one left out?
Answer:
8
Step-by-step explanation:
There are several groups so there can't be just one. And the lowest number needed for a group is 4. So the minimum amount of people to participate would have to be 8.
Please help and explain how to do it (extra points)
Answer:
It is C
Step-by-step explanation:
So 3.75 is the rate of change, when she goes to get a drink it changes it subtracts the amount which Mia has which is $50. so we could put y=-3.75x+50 as the equation because for the number of drink she buys multiply by how much she cost will be the money she has to spend, so by subtracting by 50 her gift card will give how much money she will have in her gift card
Hope this helps
Answer: y= -3.75x + 50
Each drink costs Mia $3.75. Since spending money causes her to lose money, this value will be negative. Therefore, we will put -3.75x in the beginning of the equation.
Mia has $50 on a gift card. Since this amount is positive (she has a positive amount of money) and remains constant (the amount on the gift card won't change) we will put +50 at the end of the equation.
What is the volume of a rectangular prism with a length of 4.7 feet, a width of 1.5 feet, and a height of 1.6 feet? 7.1 ft³ 7.8 ft³ 8.65 ft³ 11.28 ft³
Answer:
its 11.28
Step-by-step explanation:
i took the quiz
Answer: Your answer is 11.28ft³
Step-by-step explanation: 4.7 x 1.5 x 1.6 = 11.28 also I did the k12 quiz here's proof.
Hope it helped :D
what's the ratio of 80:70
Answer:
8:7
Step-by-step explanation:
If you simplify 80/70 by 10,
80/10 = 8
70/10 = 7
you would get 8/7
Answer:
80:70 will be equals 8:7 divide to the lowest
HELP ASAP I GIVE 60 points total and big brain!!!! Solve the system of equations by substitution. If there is one solution, express it as an ordered pair. If there is no solution, write no solution. If there is an infinite number of solutions, write infinite number of solutions.
x−y=−5x
x−y=1/3
Solution:
Given:
x - y = -5xx - y = 1/3Substitute the value of "x - y" into equation 1.
x - y = -5x1/3 = -5xDivide -5 both sides.
1/3 ÷ -5 = -5x/-51/3 x 1/-5 = xx = 1/-15 = -1/15Substitute the value of x into equation 2.
x - y = 1/3-1/15 - y = 1/3-1/15 - y = 5/15-y = 5/15 + 1/15y = -6/15 = -2/5Putting the solutions in (x,y) form.
⇒ (x,y) ⇒ (-1/15, -2/5)Answer:
(x, y) = (-1/15, -2/5)
Step-by-step explanation:
You want to solve the system of equations by substitution:
x -y = -5xx -y = 1/3SubstitutionWe can use the second equation to substitute for (x-y) in the first equation:
1/3 = -5x
-1/15 = x . . . . . . . . divide by -5
Substituting this value into the second equation, we have ...
-1/15 -y = 1/3
-1/15 -1/3 = y = -6/15 = -2/5
The solution is (x, y) = (-1/15, -2/5).
<95141404393>
If X divided by 3 equals -3 what is X?
Answer:
3(-3)= -9
x = -9
Step-by-step explanation:
-9 ÷ 3 = -3
Which table represents a linear function? ill give you brainliest if you’re right
How do I solve 5/30 * 100
Answer:
16.67
Step-by-step explanation:
5/30 = 1/6
1/6 x 100 = 100/6
100/6 simplified is 16.67
Answer:
Use PEMDAS
Step-by-step explanation:
P-parenthesis ( )
E-Exponent
M-Multiplication *
D-Division /
A- Addition+
S-Subtraction -
so, first you would do 30 * 100= 3000
Then, you would do 5/3000=???
4(3m-2)=16m so what does m equal to?
Answer:
m= -2
Step-by-step explanation:
Answer:
m=2
Step-by-step explanation:
4×3m=12m
4×-2=-8
12m-8=16
16+8=24
24/2
=12
Hope this helps! :)
Michael needs to pay car insurance premiums of $958 two times per year. He has decided to make deposits from each paycheck to a savings account for ""Other Expenses (Predictable)"" to cover this expense. How much should Michael deposit from each paycheck if the paycheck is bi-weekly? a. $80 b. $74 c. $160 d. $37 Please select the best answer from the choices provided A B C D.
There is $74 Michael deposit from each paycheck if the payback os bi-weekly, the correct option is B.
What is the insurance?The insurer and the insured get a legal contract for the insurance, which is called the insurance policy.
Given
Car insurance premium in a first half year = $958
Car insurance premium in the second half year = $958
Total Car insurance premium in year = 2 × $958 = $ 1916
Nature of paid premium is bi-weekly = in 2 weeks
There are total 52 weeks in a year.
The total number of bi-week = 26
Total deposited amount per bi-weekly is;
= $ 1916 ÷ 26 =$ 73.69 ≈ $ 74
Hence, there is $74 Michael deposit from each paycheck if the payback os bi-weekly.
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5(x-3)=4(x-2) solve for answer
Please help!! If f (x) = e^x sin x, then f’ (x) =
Answer:
[tex] f'(x) = {e}^{x}( \sin x + \cos x ) [/tex]
Step-by-step explanation:
[tex]f(x) = {e}^{x} \sin x \\ \\ f'(x) = \sin x \frac{d}{dx} {e}^{x} + {e}^{x} \frac{d}{dx} \sin x \\ \\ f'(x) = \sin x \: {e}^{x} +{e}^{x} \cos x \\ \\ f'(x) = {e}^{x}( \sin x + \cos x ) [/tex]
HELP PLS!!!
Solve the inequality $x^3 + 4x > 5x^2$.
Answer:
de fk?
Step-by-step explanation:
wth is that
Product of 6 1 5 x 79
Answer:
615×79=48,585
Step-by-step explanation:
hope it helps
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Matthew's dad hired him to paint 6 wooden patio chairs for $125. It takes him 9 hours to paint all of the chairs. If it takes the same amount of time to paint each chair, what fraction of an hour does it take Matthew to paint one chair? Justify your thinking with a model.
Given:
Matthew's dad hired him to paint 6 wooden patio chairs for $125.
Time taken by him to paint all of the chairs = 9 hours.
It takes the same amount of time to paint each chair.
To find:
The fraction of an hour does it take Matthew to paint one chair
Solution:
Total time = 9 hours
Total number of chairs = 6
Now, time taken by Matthew to paint one chair is
[tex]\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{9}{6}[/tex]
[tex]\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{3}{2}[/tex]
Therefore, Mattew takes [tex]\dfrac{3}{2}[/tex] of an hour to paint one chair.
Thinking with a model: On dividing the total time by total number of chairs we get time taken by Mattew (in hours) to paint one chair. So, the result represents the fraction of an hour taken by Matthew to paint one chair.