the vertex of the quadratic function
[tex]f(x)= \frac{1}{2}x^2+3x+\frac{3}{2}[/tex]
To find vertex we use formula x= -b/2a
from the given equation , a= 1/2 and b = 3
Now we plug in the values in the formula
[tex]x = \frac{-b}{2a}[/tex]
[tex]x= \frac{-3}{2\frac{1}{2}}=-3[/tex]
x coordinate of vertex is -3
Now plug in -3 for x in f(x)
[tex]f(-3)= \frac{1}{2}(-3)^2+3(-3)+\frac{3}{2}[/tex]
f(-3) = -3
the y coordinate of vertex is -3
So vertex is (-3,-3)
Answer:
(-3, -3)
Step-by-step explanation:
The standard form of a quadratic equation is [tex]y = ax^2+bx+c[/tex] where the coordinates of the highest point (x, y) indicate the vertex.
Here, [tex]a= \frac{1}{2} , b = 3[/tex] and [tex]c= \frac{3}{2}[/tex].
We know the formula to find the x coordinate = [tex]\frac{-b}{2a}[/tex]
[tex]x= \frac{-3}{2(\frac{1}{2}) }[/tex] = [tex]-3[/tex]
To find y, put this value of x in the function to get:
[tex]y = \frac{1}{2} x^2+3x+\frac{3}{2}[/tex]
[tex]y = \frac{1}{2} (-3)^2+3(-3)+\frac{3}{2}[/tex]
[tex]y = -3[/tex]
Therefore, the vertex (x, y) = (-3, -3)
If 5 students had to share 7 brownies, how much would each student get?
The volume of a square is V equals S to the fourth. The side of a square is 4X to the third, what is the volume of the square
note a square is a 2 dimensional figure and so cannot have volume.
However, the 3 dimensional solid you may mean is a cube and the volume of a cube is
V = s³ ( where s is the length of the side )
here s = 4x, hence
V = (4x)³ = 64x³
how do you do 7x14 an in expanded form how❓
I believe it would be seven multiplied by fourteen.
The volume of a spherical tank is 790.272 pie cubic feet what is the diameter of the container
Answer:
The diameter is 13.88 feet.
Step-by-step explanation:
1. The formula for calculate the volume of a sphere is:
[tex]V=\frac{3}{4}(r^{3}\pi)[/tex]
Where [tex]r[/tex] is the radius.
2. The diameter is:
[tex]D=2r[/tex]
3. So, you must solve for the radius in the first equation:
[tex]r=\sqrt[3]{\frac{4V}{3\pi}}[/tex]
[tex]r=\sqrt[3]{\frac{4(790.272ft^{3} )}{3\pi}}\\r=6.94ft[/tex]
4. Then, the diameter is:
[tex]D=2(6.94ft)\\D=13.88ft[/tex]
the product of two numbers is 814. the sum is 59. whats the difference of these two numbers
36x^18+60x^9y^2+25y^4 factored in two products of polynomial
[tex]36x^{18}+60x^9y^2+25y^4=6^2x^{9\cdot2}+2\cdot6x^9\cdot5y^2+5^2y^{2\cdot2}\\\\=6^2(x^9)^2+2\cdot6x^9\cdot5y^2+5^2(y^2)^2\qquad(*)\\\\=(6x^9)^2+2\cdot6x^9\cdot5y^2+(5y^2)^2\qquad(**)\\\\=(6x^9+5y^2)^2=(6x^2+5y^2)(6x^9+5y^2)\\\\Used:\\\\(*)\qquad(a^n)^m=a^{nm}\\\\(**)\qquad(a+b)^2=a^2+2ab+b^2[/tex]
Read the spreadsheet formula below, then answer the question. cell B5=A5*2 If this formula is filled into cell B6, what will the new formula be? =B5*B5 =B5*2 =A5*B6 =A6*2
The new formula for B6 cell will be B6=A6*2
Answer:
B6 =A6*2
Step-by-step explanation:
In Excel, the rectangular box where the rows and column intersect is called cell. The raws are represented by 1, 2, 3, 4, ................, the columns are represented by A, B, C, D,........,The notation of a cell is 'column row',
When we fill a formula in a cell then it can be proceed in below cells.
Here, the given formula,
B5=A5*2
Since, B6 is the below cell of the cell B5,
And, A6 is the below cell of the cell A5,
Thus, the new formula would be,
B6 =A6*2
Add 5/9+7/9 . Simplify the answer and write a mixed number
Hello there!
First you had to solving by the fractions parts.
[tex]\frac{5}{9}+\frac{7}{9}=\frac{12}{9}[/tex]
Then you reducing by the fraction parts of 12/9.
[tex]\frac{12}{9}=\frac{4}{3}[/tex]
And finally, you simplify by the fraction parts of 4/3.
[tex]\frac{4}{3}=1 \frac{1}{3}[/tex]
Solution by Formulas
Applying the fractions formula for addiction.
[tex]\frac{(5*9)+(7*9)}{9*9}[/tex]
[tex]\frac{45+63}{81}[/tex]
[tex]=\frac{108}{81}[/tex]
Simplifying 108/81 and the answer is
[tex]=1 \frac{1}{3}[/tex]
Hope this helps!
Thank you for posting your question at here on Brainly.
-Charlie
The sum of 5/9 and 7/9 expressed as a mixed fraction is [tex] 1 \frac{1}{3}[/tex]
L.C.M of the denominator is 9
Now we have ;
5/9 + 7/9 = (5 + 7)/9 = 12/9
Rewriting as a mixed fraction :
12/9 = [tex] 1 \frac{1}{3}[/tex]
Therefore, the sum of the fractions expressed as a mixed fraction is [tex] 1 \frac{1}{3}[/tex]
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Albert opens a savings account with $50 to save for a new iPhone xs. each week after he deposits $15. in how many weeks will he saved $500
50-500=450
450/15=30
30 weeks
Albert needs 30 weeks to save $500, starting with an initial $50 and depositing $15 each week after.
Explanation:The subject of this problem is saving money over time. Albert starts with an initial amount of $50. Each week afterward, he adds an additional $15 to his savings. If he wants to save a total of $500, we need to figure out how many weeks that will take.
Since Albert already starts with $50, we first subtract that from $500, the total he wants to save, which leaves $450.
Then, we divide 450 by the amount Albert saves each week, $15. This equals 30, meaning it will take Albert 30 weeks to save $500.
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If the sales tax is 8% . What is the total cost of a $55 pair of shoes
$50.60 do you need to know how
What is the inverse of the function f(x) = 2x + 1?
y=0.5(x−1)
Hope i helped
y=2x+1, replace x by y and vice versa
x=2y+1 now solve for y
y=0.5(x-1)
Find the values of X and Y
Answer:
From the image we have,
[tex](11x-6)^{\circ}[/tex] and [tex](13y-14)^{\circ}[/tex] are linear pairs.
Linear Pair Theorem: If two angles form a linear pair, then they are supplementary.
therefore, by above theorem we have,
[tex]11x-6+13y-14=180^{\circ}[/tex]
simplify:
[tex]11x+13y=200^{\circ}[/tex]
Since, we can seen from the image we have, [tex]15x-8=90^{\circ}[/tex]
[tex]15x=98^{\circ}[/tex]
therefore, [tex]x=6.534^{\circ}[/tex]
Now, putting the value of x in equation [tex]11x+13y=200^{\circ}[/tex] to find for y:
[tex]11\cdot 6.534+13y=200^{\circ}[/tex]
[tex]71.8667+13y=200^{\circ}[/tex]
[tex]13y=200-71.867=128.134^{\circ}[/tex]
Therefore the values of [tex]x=6.534^{\circ}[/tex] and [tex]y=128.134^{\circ}[/tex]
PLEAS HELP I WILL MARK YOU BRAINLYEST!!
What is the missing value in the table of equivalent ratios?
1 4
2 8
4 16
6 24
8 ?
A. 22
B. 28
C. 32
D. 40
Hi the answer is d 40 i hope this helps,
4+4 is 8
8+8 is 16
12+16 is 24
So 16+24 is 40
The answer is C. 32. As you can see, the first variable is multiplied by the second variable of the table. Thus, you would have to multiply 8 and 4. Which would give you the answer of 32.
Solve the following equation |x+8|=2x-3
[tex]2x-3\geq0\\2x\geq3\\x\geq\dfrac{3}{2}\\\\|x+8|=2x-3\\\\x+8=2x-3 \vee x+8=-2x+3\\\\x=11 \vee 3x=-5\\\\x=11 \vee x=-\dfrac{5}{3}\\\\-\dfrac{5}{3}\not \geq \dfrac{3}{2}\\\\\boxed{x=11}[/tex]
ANSWER FAST PLEASE Which is a reasonable first step that can be used to solve the equation 4x+3(x+2)=5(2x-3)
The answer would be A) Distribute
And solving it would leave you with x = 7
The answer is A)Distribute the 3 to x + 2, and distribute the 5 to (2x - 3). because it expands the equation and makes it easier to solve further.
At 7am last night, the temperature was 10°F. At 7am the next morning, the temperature was -2°F. By how much did the temperature change from 7pm to 7am?
The temperature decreased by 12°F from 7pm to 7am.
Explanation:The temperature change from 7pm to 7am can be calculated by finding the difference between the temperatures at those times. At 7am last night, the temperature was 10°F.
At 7am the next morning, the temperature was -2°F. To find the temperature change, subtract the initial temperature from the final temperature: -2°F - 10°F = -12°F. Therefore, the temperature decreased by 12°F from 7pm to 7am.
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What’s 4x-7=13 in simplest form
First person to ask gets brainliest
Answer:
X = 3 because simplified it would be 2x=6Answer:
X = 5
Step-by-step explanation:
Step 1: Add 7 to both sides.
4x − 7 + 7 = 13 + 7
4x = 20
Step 2: Divide both sides by 4.
4x/4 = 20/4
X = 5
Hope this helps :-)
A line segment has the endpoints (2,-5)and(-1,-1). What is it’s slope?
A. -6/1
B. -3/4
C. -1/6
D. -4/3
The slope formula:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have:
[tex](2,\ -5)\to x_1=2,\ y_1=-5\\(-1,\ -1)\to x_2=-1,\ y_2=-1[/tex]
Substitute:
[tex]m=\dfrac{-1-(-5)}{-1-2}=\dfrac{-1+5}{-3}=\dfrac{4}{-3}=-\dfrac{4}{3}[/tex]
Answer: D.kim made two pies that were excatly the same size. the first pie was a cherry pie, which she cut into 6 equal slices. the second pie was a pumpkin pie,which she cut into 12 equal slice. kim takes her pies to a party. people eat 3 slices of cherry pie and 6 slices of pumpkin pie. did people eat more cherry pie or punpkin pie?
Neither. It’s equal.
6 cherry = 12 pumkin
Ratio is 1c : 2p
3 cherry = 6 pumkin so they ate the same amount.
HELP ME ASAP!!!! PLEASE!!!!
99 and division and multiplication.
Louis and Ollie are pricing meat at a butcher shop. All of the meat packages are marked $12.99, and the weight, in pounds, of each package is written as a mixed fraction. Which of the following weights would be the best deal? A. 22⁄3 B. 29⁄11 C. 24⁄5 D. 27⁄8
Answer:
Option D
the weights would be the best deal is [tex]2\frac{7}{8}[/tex]
Step-by-step explanation:
The price of all meat packages are marked $12.99.
To find the best deal we have to show that the weight of which package will be greatest.
The weight of each packages are written as a mixed fraction as follows;
[tex]2\frac{2}{3} , 2\frac{9}{11} , 2\frac{4}{5} , 2\frac{7}{8}[/tex]
Now, convert these improper fraction into proper fraction.
[tex]2\frac{2}{3}=\frac{8}{3}[/tex]
[tex]2\frac{9}{11}=\frac{31}{11}[/tex]
[tex]2\frac{4}{5}=\frac{24}{5}[/tex]
[tex]2\frac{7}{8}=\frac{23}{8}[/tex]
To make their denominators same,
the LCM(Least common multiples) of the denominators(11, 3, 5, 8) is 1320.
So,
[tex]\frac{8}{3}= \frac{8\cdot 440}{3\cdot 440} =\frac{3520}{1320}[/tex]
[tex]\frac{31}{11}= \frac{31\cdot 120}{11\cdot 120} =\frac{3720}{1320}[/tex]
[tex]\frac{14}{5} =\frac{14\cdot 264}{5\cdot 264}= \frac{3696}{1320}[/tex]
[tex]\frac{23}{8}=\frac{23\cdot 165}{8\cdot 165} =\frac{3795}{1320}[/tex]
As, you can see that the only fraction is greatest is [tex]\frac{3795}{1320}[/tex]
therefore, the weight [tex]2\frac{7}{8}[/tex] would be the best deal.
The cost of a book is 90.5 and the tax is 4% what is the new cost
answer: $94.12
work:
let's start by finding the tax.
step one: convert the percentage into a decimal by dividing it by 100.
4 / 100 = 0.04
next, multiply your total by the tax
$90.5 x 0.04 = 3.62.
next, add the tax to the original price to see your new total.
$90.5 + $3.62 = $94.12
so, your total with tax would be $94.12.
i hope this helps, and have a great day! don't hesitate to ask if you need more help with this specific question! ♥ - eviezoom
What is the solution to the inequality? 17 < 9 + x
17 < 9 + x Subtract 9 from both sides.
17 - 9 < 9 - 9 + x
8 < x
Be very careful that you leave the open end of the less than symbol pointing towards the x It means that x is greater than 8.
You could write it the other way x > 8 but the pointy end must always be closest to the 7 which is another way of saying what the answer means.
Notice anything after the 8 going right is colored and it is the answer.
I'm stuck on another question 5 4/5 + (-3 2/7)
So that would be the same thing as 5 4/5 - 3 2/7
Put them in mixed fractions to become 29/5 - 23/7
Multiply one side by 7 and one side by 5 to get the same denominator
203/35 - 115/35
Now subtract the numerators to get
88/35
Or if they want it inixed numbers then 2 18/35
54/5 - 32/ 7
=(378 -160)/ 35
=218/35
Which size container of cold farm ice cream is the better deal for Sheldon? Explain.
Cold Farms:
Small box
1 pint = $2.50
1 quart = $4.50
Large Box
1 quart = 2 pints .
2 pints = $4.50
1 pint = $4.50 / 2 = $2.25
Cone Dreams:
Small box
1 quart = $4.25 and
1 pint = $4.25/2 = $ 2.125
Large Box
1 gallon = $9.50.
1 gallon = 8 pints
8 pints = $9.50.
1 pint = $9.50 / 8 = $ 1.1875.
Answer:
The larger size of the cold farm ice cream is the better deal . To get the equivalent volume of the small size to the large size , one needs to spend $2.5 + $2.5 = $5.0 where as for the larger size you will only spend $ 4.5.
Step-by-step explanation:
The price for cold farm ice cream for the small size is $2.5 for 1 pint and for the larger size it is $4.5 for 1 quarts. Sheldon wants to know the better deal for the size container of cold farm ice cream.
Firstly, the prices are in different volume unit we need to convert them to the same units.
1 pints = 0.5 quarts
That means small size of cold farm ice cream is $ 2.5 for 0.5 quart and larger size is $ 4.5 for 1 quart.
Small size
$2.5 for 0.5 quart
$5.0 for 1 quart
Larger size
$ 4.5 for 1 quart
The larger size of the cold farm ice cream is the better deal . To get the equivalent volume of larger size , one needs to spend $2.5 + $2.5 = $5.0 where as for the larger size you will only spend $ 4.5.
Monica is mixing some custom colored paint for her house. The color she wants requires 3/4 ounces of blue dye and 2/3 of an ounce of pink dye mixed with each gallon of white paint base. How much dye is needed to mix 8 gallons of paint?
A. 11 5/7
B. 11 2/3
C. 11 1/3
D. 11 2/3
Amount of blue dye mixed with one gallon of white paint=[tex]\frac{3}{4}[/tex]
Amount needed for 8 gallons = [tex]\frac{3}{4}\times8=6[/tex] ounce
Amount of pink dye mixed with one gallon of white paint=[tex]\frac{2}{3}[/tex]
Amount needed for 8 gallons = [tex]\frac{2}{3}\times8= \frac{16}{3}[/tex] ounces
So, total dye required =[tex]6+\frac{16}{3}=\frac{18+16}{3}=\frac{34}{3}[/tex]
or
[tex]11\frac{1}{3}[/tex] ounces.
Hence, option C is correct.
if it takes sound 1 aecond to travel 1.5km how many km will it travel in 3.7 seconds
Lets set up an equation to easier understand this.
1/1.5 = 3.7/x (x represents the unknown km)
We know that whatever you do to the top you do to the bottom.
And we can see that 1 x 1.5 = 1.5
So we can multiply the same thing by 3.7
1.5 x 3.7 = 5.55
So in this case you would travel 5.55 km in 3.7 seconds.
GOOD LUCK :)
A copier printS 89 copies in one minute .How long does it take the copier to print 1,858 copies
Answer: 20.87/21 minutes
Step-by-step explanation: 1858/2 = 20.8764044944
2 x 20.8764044944 = 1858
It takes approximately 21 minutes for the copier to print 1,858 copies, given that the copier prints at a rate of 89 copies per minute.
To determine how long it takes for the copier to print 1,858 copies, we can set up a proportion since we know the rate at which the copier prints is 89 copies per minute. We calculate the time it would take by dividing the total number of copies needed by the number of copies the machine can print per minute:
Time (in minutes) = Total Copies ÷ Rate
Time (in minutes) = 1,858 copies ÷ 89 copies per minute
After performing the division, we find that:
Time (in minutes) = 20.8764 minutes
Since we generally measure time in whole minutes when it comes to using office equipment, we can round this to the nearest whole number, thus giving us approximately 21 minutes to complete the printing task.
see picture and please show steps
The picture is only one white dot
I need help with this math problem pls help me
3(4x - 2) = 30
12x - 6 = 30 distributed 3 on the left side
+6 +6
12x = 36
[tex]\frac{12x}{12} = \frac{36}{12}[/tex]
x = 3
Answer: x = 3