Answer:
f(x) = 3(x - 7)² - 4Step-by-step explanation:
The vertex form of an equation of the parabola:
f(x) = a(x - h)² + k
the vertex is (7, -4) ⇒ h = 7, k = -4
so:
f(x) = a(x - 7)² + (-4)
f(x) = a(x - 7)² - 4
The parabola goes through the point (5, 8) ⇒ x=5, f(x)=8
8 = a(5 - 7)² - 4
8 = a(-2)² - 4
+4 +4
12 = 4a
÷4 ÷4
a = 3
It means the equation of the parabola in vertex form:
f(x) = 3(x - 7)² - 4
What is the value (3-54(2) - 16
10
Answer:
I believe the exact value is -265
If b = 5, what is b3?
Answer:
15
Step-by-step explanation:
I'm assuming that b3 is the variable b times 3. So if you plug in 5 for the b variable you'd get (5)3 which is 5 times 3, or 15.
Can you please solve this?
Answer:
I think it’s c
Step-by-step explanation:
Eight and seventy-four hundredths in standard decimal form
Hey there!
Fact: Usually whenever you see the “-th” in word-form in mathematics we know the result will have a decimal in it!
Since you have the “-th” in your problem we know it’ll have a decimal
Now let’s start solving!
8 would be in your ONES place
.
7 would be in your TENTHS place
4 would be in your HUNDREDTHS place
Your answer SHOULD look like this: 8.74 ☑️
Note: ALWAYS check your wording in problems. It’ll come easier to you!
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
The product of a and 52 is the same as 676
Answer: A= 13
Explanation: 13x52=676
Answer:
a = 13
Step-by-step explanation:
a * 52 = 676
52a = 676
a = 13
Please mark me the brainliest!?!
Natasha can type 30 words a minute.
How many words can be typed in 7.5 minutes?
The value of 4.8-(2.5-6.3)
Answer:
first you will Subtract 6.3-2.5 and should get 3.8 now 4.8-3.8=1
Step-by-step explanation:
Answer:
The answer is 1
Step-by-step explanation:
PEMDAS
Nikki used the calculations shown to determine whether a carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy. What was her first error?
Given :
A carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy.
To Find :
What was her first error.
Solution :
Her first error is to find Unit price of egg in each carton.
To find, unit price we should divide total amount by number of units :
Unit price for carton of 12 eggs, $ (2.39)/12 = $0.199 .
Hence, this is the required solution.
Answer:
She is right, however her explanation is wrong.
In order to find the unit price, you need to divide the amount by the cost.
You will then see that 12 divided by 2.39 < 18 divided by 3.39.
The smaller unit price is obviously the better buy.
Step-by-step explanation:
Solve
-5(x + 3) = 2(x - 4)
Answer:
x=-1
Step-by-step explanation:
Answer:
X = -1
Step-by-step explanation:
The sum of a number and its reciprocal is 6.41. What is the number?
Answer:
i think you need to make the number into a whole all together.
Plz help this assignment is due today!!! Also plz make sure to write the equation, graph, and type the solution. Thank you
Answer:
u can search on google the example
Classify the numbers as rational or irrational.
7
√ 14
7 + √ 14
7./14
rational
irrational
Answer:
1. R
2.I
3. I
4.R
Step-by-step explanation:
Simplify: 12x + 4(-7x + 3)
Answer:
-4x+3
Step-by-step
4*(-7)=-28
4*3=12
12x-28x+12
-16x+12
4/ (-16x+12)= -4x+3
What do you do in algebra
Please solve this multi-step equation that has parenthesis.
2(x - 5) + x = x + 8
Answer:
Your answer : x = 9
Isolate the variable by dividing each side by factors that don't contain the variable.
Step-by-step explanation:
Hope this helped : )
You can buy 5 cans for green beans at the Village Market for $3.70. You can buy 10 of the same cans of beans at Sam's Club for $6.90. Which place is the better buy?
Answer:
1 can of green beans at Village Market is $0.74. At Sam's Club, one can of green beans is $0.69. Therefore, Sam's Club is the better buy, by being cheaper than Village Market's by $0.05.
Step-by-step explanation:
At a candy store, Jeremiah bought 1 pound of jelly beans for $9. Meanwhile, Emma bought 4
pounds of jelly beans and 6 pounds of gummy worms for $60. How much does the candy
cost?
Plz help ASAP
Answer:
I think the candy cost 51 dollars
Jellybeans: 36$
Gummy worms: 15$
36 + 15 = 51
Step-by-step explanation:
Since jeremiah bought 1 pound for 9 dollar you can minus 9 from the equation which is 51 and since each pound of jelly beans were 9 dollars 9 x 4 = 36 and 51 - 36 is 15 so the cost of the gummy worms are 15 so
either 51 or 36 and 15
Write the equation for a parabola whose vertex is (-6,-1) and passes through (-12,17).
Answer:
[tex]y=\frac{1}{2}(x+6)^2-1[/tex]
Step-by-step explanation:
Equation of the Quadratic Function
The vertex form of the quadratic function has the following equation:
[tex]y=a(x-h)^2+k[/tex]
Where (h, k) is the vertex of the parabola that graphically represents the function, and a is a coefficient different from zero.
The vertex of the required equation is located at (-6,-1)
The parabola passes through (-12,17)
Substituting the coordinates of the vertex, the equation of the function is:
[tex]y=a(x+6)^2-1[/tex]
The value of a will be determined by using the given point:
[tex]17=a(-12+6)^2-1[/tex]
Operating:
[tex]17=a(36)-1[/tex]
[tex]36a=18\Rightarrow a=18/36=1/2[/tex]
Solving:
[tex]a=1/2[/tex]
The equation of the parabola is:
[tex]\boxed{y=\frac{1}{2}(x+6)^2-1}[/tex]
plz help me understand this question
Answer:
sorry I can't understand this question
Step-by-step explanation:
im busy sorry
Give two other names for PS
Answer:
it's c
Step-by-step explanation:
The line PS can be represented by the other names will be PQ, RQ, RS, PR, RS, and PS. Then the correct option is D.
What is a linear equation?A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.
A line is an object in geometry that is indefinitely long and has neither breadth nor depth nor curvature. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things. In daily speech, a line segment with two points designating its endpoints is also referred to as a line.
The line is shown below.
The line PS can be represented by the other names will be PQ, RQ, RS, PR, RS, and PS.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ5
What property is 7+(a+b)=(7+a)+b
Answer:
associative property
Step-by-step explanation:
Associative property of addition is when you move the parentheses but the values don't move
Hope this helps you out!!!!
Working simultaneously, eight pumps fill in a pool in 32 hours. All pumps work at the same pace. If only half of the pumps are working, in how many hours will the pool be filled in?
Answer:
16 hours
Step-by-step explanation:
trust me its rsm principal test rite? lol u just divide the hours by 2 cuz there are only half the pumps
Answer:
64 hours
Step-by-step explanation:
Use the diagram below to answer the question.
6x + 15
10x-5
14 What is the value of ?
Use the diagram below to answer the following questions.
1
32 degrees
2
43 degrees
3
15 What is the measure of 21?
What is the measure of 232
Answer:
1. x = 5
Remember that all angles add up to 180, and because you know that one of the angles = 90, you can add the other two angles like so.
6x + 15 + 10x - 5 = 90
2.
Angle 1 = 43 degrees
Angle 3 = 32 degrees
help me pls A.S.A.P interpret in English
1. je mange toujours de la slade
2. tu as mange du riz
3. Elle a beaucoup d'enfants
4. IL a bu du the
5. je bois toujours du vin
6. vous etes des etudiants de la Langue francais
Step-by-step explanation:
1.)i always eat salad
2.)you ate rice
3.)She has a lot of children
4.)He drank tea
5.)i still drink wine
6.)you are students of the French language
(thanks, sorry and hope I helped)
Help me solve this problem please
Answer:
look at picture :)))
Step-by-step explanation:
is this right?
NEED ANSWER NOW PLS HELP
Answer:
The second one: [tex]8x^{2}y+7x^{2}-5y^{2}+3x-2+2x^{2}y-x^{2}-2y^{2}-3x-4[/tex]
Step-by-step explanation:
You have to combine the like terms (any numbers with the same variables and exponents)
[tex]8x^{2}y+2x^{2}y=10x^{2}y, 7x^{2}-x^{2}=6x^{2}, -5y^{2}-2y^{2}=-7y^{2}, 3x-3x=0, -2-4=-6[/tex]
If you put all of the answers together you get [tex]10x^{2}y+6x^{2}-7y^{2}-6[/tex]
Giving 5 STARS AND BRAINLIEST IF YOU ANSWER CORRECTLY!!
TTM
On a very cold morning, it was -8°F. As the day went on, the temperature rose 2 degrees each hour. Which equation shows the temperature over time?
The last one the answer is ( number ) 40 degrees
“The product of a number and negative 8” ( translating expression).
Answer:
x(-8)
Step-by-step explanation:
1.) Diego paid $47 for 3 tickets to a concert. Andre paid $141 for 9 tickets to a concert.
Did they pay at the same rate (what was the value they paid for 1 ticket)? How do you
know?
Using the figure below, find the measure of z ( just enter in the number for your answer don’t worry about the degree symbol or saying “ degrees” after the number
Answer:
z = 29°
Step-by-step explanation:
We know that the 3 angles in a triangle always add up to 180°. So for triangle ABC, angle A = 59° (given), and angle B = 43° + 49° = 92° (given).
angle A + angle B + angle C = 180°
59° + 92° + z = 180°
151° + z = 180°
Subtract 151° from both sides of the equation
z = 180° -151°
z = 29°