Answer:
[tex]\left(\dfrac{11}{4},-\dfrac{57}{8}\right)[/tex]
Step-by-step explanation:
[tex]f(x) = 2x^2 - 11x +8[/tex]
Quickest way is to differentiate the function, equate it to 0, solve for x, then substitute value of x into original function to find y:
[tex]f'(x)=4x-11[/tex]
[tex]f'(x)=0[/tex]
[tex]\implies 4x-11=0[/tex]
[tex]\implies x = \dfrac{11}{4}[/tex]
[tex]f(\frac{11}{4}) = 2(\frac{11}{4})^2 - 11(\frac{11}{4}) +8=-\dfrac{57}{8}[/tex]
What fraction of an hour is 25 minutes?
Answer with steps I will mark u as BRAINLIEST ANSWER if u help me
Answer:
5/12
Step-by-step explanation:
1 hour = 60 minutes
[tex]\dfrac{25}{60}=\dfrac{5*5}{5*12}=\dfrac{5}{12}[/tex]
The fraction of an hour that is equivalent to 25 minutes is 5/12
Data;
1 hour = 60 minutestime = 25 minutesFractionsThe fraction of an hour that is equivalent to 25 minutes would be the ratio between 25 minutes to 60 minutes which is one hour.
[tex]\frac{25}{60} = \frac{5}{12}[/tex]
The fraction of an hour that is equivalent to 25 minutes is 5/12
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Please help!! what is the value of x and please do step by step if possible !
Answer:
x=71 degrees
Step-by-step explanation:
it is a isosceles triangle so the blank angle is also x
angles of a triangle add up to 180
180=38+2x
2x=142
x=71
Someone help me quick ill give brainleist
Answer:
-2.5 per hour
Step-by-step explanation:
its going down 5 every 2 hours so just divide both by 2 and you got it
After many studies, a researcher finds that the probability a word recognition program correctly interprets a hand-written word is 3/10. How many words would the researcher expect the program to interpret correctly out of 90 words?
4 in
4 in
4 in
d the volume of the triangular prism.
A) 6 ind
B) 12 in?
() 32 in
D) 64 in)
The local firemen have a 50 ft. ladder. They need to get to the top a 48 foot building. What is the maximum distance away from the building they can place the foot of the ladder so that the top of the ladder reaches the top of the building?
Answer:14 ft
Step-by-step explanation: 50^2=x^2+48^2(Pythagorean theorem)
x^2=2500-2304
x^2=196
x=14
What is the probability of landing on red and rolling a number greater than 2?
Using it's concept, considering a spinner with four sections and a die with 6 numbers, there is a [tex]\frac{1}{6}[/tex] probability of landing on red and rolling a number greater than 2.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem:
The spinner has 4 sections, one of which is red, hence P(A) = 1/4.The die has 6 numbers, four of which are greater than two, hence P(B) = 4/6.The events are independent, hence:
[tex]P(A \cap B) = P(A)P(B) = \frac{1}{4} \times \frac{4}{6} = \frac{1}{6}[/tex]
[tex]\frac{1}{6}[/tex] probability of landing on red and rolling a number greater than 2.
More can be learned about probabilities at https://brainly.com/question/14398287
Factor completely 12x4 6x3 18x2. Prime 6(2x4 x3 3x2) 6x2(2x2 x 3) 6x(2x3 x2 3x).
The factors of the given expression will be 7,x, x, y, and ( x + 2y²- y).
We have the expression:
7x³y+ 14x²y³-7x²y²
What is a factor?A factor is a number that divides another number completely.
Let us take '7x²y' as common in the above expression
7x²y( x + 2y²- y)
7. x.x.y ( x + 2y² - y)
Further, we cannot make any factor.
Therefore, the factors of the given expression will be 7,x, x, y, and ( x + 2y²- y).
To get more about factors refer to the link,
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A garden measuring 15 meters by 20 meters is to have a pedestrian pathway installed
all around it, increasing the area to 336 square meters.
a. Write an expression to represent the area of the total garden including the
pathway.
b. What will be the width of the pathway?
The area of the garden is the amount of space on the garden.
The area of the total garden is (x + 15)(x + 20)The width of the pathway is 1 meterThe expression of the areaThe dimensions of the garden is given as:
15 meters by 20 meters
Let the width of the pedestrian pathway be x.
So, the area of the total garden is:
[tex]Area=(x + 15)(x + 20)[/tex]
The width of the pathwayIn (a), we have:
[tex]Area=(x + 15)(x + 20)[/tex]
The total area is given as: 336.
So, we have:
[tex](x + 15)(x + 20) = 336[/tex]
Expand
[tex]x^2 + 35x + 300 = 336[/tex]
Collect like terms
[tex]x^2 + 35x + 300 - 336 = 0[/tex]
Evaluate
[tex]x^2 + 35x - 36 = 0[/tex]
Expand
[tex]x^2 + 36x -x - 36 = 0[/tex]
Factorize
[tex]x(x + 36) -1(x +36) = 0[/tex]
Factor out x + 36
[tex](x + 36)(x -1) = 0[/tex]
Solve for x
x = -36 or x =1
The width cannot be negative.
Hence, the width of the pathway is 1 meter
Read more about areas at:
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What is the value of x
Answer:
X=55
Step-by-step explanation:
It says 15, so what you want to do is times 15x14 because those are the only sides of the shape. After you multiply 15x14 which is 60, you need to minus 5 because it shows a subtraction sign. So, 60-5= 55. X=55
Polygon A and Polygon B are similar with a ratio of similarity of 5/4. If the perimeter of Polygon A is 20 units, what is the perimeter of Polygon B?
Answer:
16 units
Step-by-step explanation:
A/B = 5/4 = 20/p
5/4 = 20/p
5p = 4 × 20
p = 4 × 4
p = 16
Answer: 16 units
write the following expression as a product of a repeated variable. Do not use any exponents in your answer. c^5
Answer:
C*C*C*C*C
Step-by-step explanation:
C^5 is C times itself 5 times hence C*C*C*C*C. Hope this helps.
on a trip road you notice that the gas tank is full 1/4 full. The gas tank can hold 18 gallons,and the vehicle averages 22 miles per gallon.WIll u make it to ur destination 110 miles before you run out of gas.Explain
Answer:
No.
Step-by-step explanation:
First, we need to firgure out what 1/4 of 18 is (4.5). Then, multiply 4.5*22 to see the gallons left by the average traveled each gallon (99). Clearly, 99 is not equal to or greater than 110.
(100 points) scatter plot is shown.
A scatter plot is shown with numbers from 1 to 10 at increments of 1 on the x axis and numbers from 0 to 10 at increments of 1 on the y axis. The ordered pairs 0, 2 and 1, 3 and 1, 9 and 1.2, 4 and 1.9, 4 and 2.6, 4.2 and 3, 5 and 4, 5 and 4, 6 and 4.8, 6.1 and 5, 7 and 5, 7.9 and 6.9, 7.1 and 6, 8 and 7, 3.8 and 7, 8.2 and 7, 9.1 and 7.1, 9.8 and 8, 10 and 10, 7 and 9, 5.
How many outliers does the graph show?
1
2
3
4
Answer:
The graph shows 2 outliers. The scatter plot consist on a straight pattern. As seen, only 2 points are not within the straight line. We can conclude that only two points are outliers. =
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
I just took the test do not listen to the other persons answer or you will get it wrong. :) no offense. Have a great day everyone.
When Akbar’s son was four years old, Akbar put $250 into an account that guaranteed a 10% annual return. The equation f(x)=250(1.10)^x-4 represents the amount of money in the account when the child will be x years old.
Which graph models the scenario?
The graph that models the scenarios must increase upwards since it is a growth rate.
Exponential functionsGiven the exponential function expressed as:
f(x)=250(1.10)^x-4
where
x is the time taken
The graph that models the scenarios must increase upwards since it is a growth rate. The required graph is as shown below;
Learn more on exponential function here: https://brainly.com/question/12940982
Answer:
D on edge
Step-by-step explanation:
What is the slope of a line that passes through the points (5,-3) and (13, -9)
Step-by-step explanation:
the slope is the ratio of "y coordinate change / x coordinate change" when going from one point to the other.
so, we see
x changes by +8 (from 5 to 13).
y changes by -6 (from -3 to -9).
so, the slope is -6/+8 = -3/4
Hello.
Let's find the slope using the slope formula:
[tex]\mathrm{\displaystyle\frac{y2-y1}{x2-x1} }[/tex]
[tex]\mathrm{\displaystyle\frac{-9-(-3)}{13-5} }[/tex]
[tex]\mathrm{\displaystyle\frac{-9+3}{13-5} }[/tex]
[tex]\mathrm{\displaystyle\frac{-6}{8} }[/tex]
The fraction can be simplified:
[tex]\mathrm{\displaystyle-\frac{3}{4} }[/tex]
Therefore, the slope is
[tex]\mathrm{\displaystyle-\frac{3}{4} }[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
Please help! I'll give you brainliest for the correct answer!!!
I'll report your answer if it's wrong!
Answer:
0.408
Step-by-step explanation:
Explain how you can use a 10 by 10 grid to model 42%
a 10-by-10 grid means there are 100 squares and percent is out of 100 so if you have 42% then you just need to fill in 42 squares
The vertices of quadrilateral WXYZ are W(-5,5), X(-3, 8), Y(6, 2), and Z(4, -1). What choice is the best description of quadrilateral?
A. Trapezoid
B. Square
C. rhombous, that is not square
D. rectangle, that is not square
Please provide explanation. DOn't just say one option.
Quadrilaterals are shapes with four sides
The description of the quadrilateral is (d) rectangle, that is not square
How to determine the shapeThe coordinates are given as:
W(-5,5), X(-3, 8), Y(6, 2), and Z(4, -1)
Next, we plot the coordinates on a graph (see attachment)
From the attachment, we can see that the coordinates form a rectangle
Hence, the description of the quadrilateral is (d) rectangle, that is not square
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The calories , c, in a snack and the amount of the snack , a ... How do u identity the dependent variable and the independent variable In each situation???
when you first move into your current house, you noticed that a tree outside had a height of 63 inches. You noticed that after 3 years, the height was 72 inches. Predict how tall the tree will be after 20 years.
The equation for line p can be written as y= – 5/4 x–6. Line q includes the point (5, – 8) and is parallel to line p. What is the equation of line q?
Answer:
y = -(5/4)x - (1 3/4)
Step-by-step explanation:
A line parallel to y= -(5/4)x - 6 will have the same slope, -(5/4), but a different value for the y-intercept, which is -6 in this equation. This means we can write:
y = -(5/4)x + b
As klong a b is not -6, the line will be parallel. But we are told that point (5,-8) must be on the new line. That means we need to select a value of b to make that happen. By shifting b, we can move the straight line up or down. To move it so that it goes through (5,8), enter that point in the equation and solve for b:
y = -(5/4)x + b
-8 = -(5/4)*5 + b for (5,-8)
-8 = -(25/4) + b
b = -8 + (25/4)
b = -(32/4)+(25/4)
b = -(7/4) or - 1 3/4
The parallel line that goes through (5,-8) is y = -(5/4)x - 2
Answer:
y=-5/4x-7/4
Step-by-step explanation:
A scout troop picked 1610 oranges. They plan to sell boxes of oranges with 18 oranges in each box. How many boxes can they make
Answer:
89 boxes
Step-by-step explanation:
1610/18= 89.4444444444
Then you round down since only 89 full boxes can be made.
8 x five sixths PLEASE HELP ME ASAP
a fifty three sixths
b forty sixths
c thirteen forty eighths
d five forty eighths
Oscar spent two thirds hour each night doing homework for five nights this week. How many hours of homework did Oscar complete this week?
seven and one half hours
three and one third hours
two and one third hours
one and one fifth hours
Answer:
v thirteen forty eights
seven and one half hours
8 x 5/6
8 x 5 = 40
40/6
The answer is B) 40/6.$2000 at 3.5% for 4 years
a. Find the interest earned.
b. Find the balance of the account.
Answer:
a 280
b 2280
Step-by-step explanation:
a Interest = 2000 * 3.5 * 4
------------------------ = 280
100
b 2000 + 280 = 2280
which numbers are a surd?
Answer:
Step-by-step explanation:
[tex]\sqrt{6} x \sqrt{10} is a surd\\\sqrt{144} + \sqrt{49}[/tex]is a surd
Determine whether the sample is biased or unbiased. Explain.
You want to estimate the number of students in your school who
play a musical instrument. You survey the first 15 students who
arrive at a band class.
Answer:
the sample is biased
Step-by-step explanation:
Given mn, find the value of x.
(x+5)*(x-13)
x²-13x+5x-65
x²-8x-65
(x+5)(x−13)
Domain
x∈R
Range
y∈[−81,∞)
Zeros
x=−5; x=13
Y-intercept
y=−65
Minima
(4,−81)
PLEASE AWNSER WILL GIVE 100 POINTS!!!!!!!!!!! PLUS BRAINLEST!!
Slope:-
[tex]\\ \rm\rightarrowtail m=\dfrac{4+3}{-1}=\dfrac{-7}{1}=-7[/tex]
Equation in slope intercept form
[tex]\\ \rm\rightarrowtail y-4=-7(x)[/tex]
[tex]\\ \rm\rightarrowtail y=-7x+4[/tex]
Answer:
[tex]y=-7x+4[/tex]
Step-by-step explanation:
Formulae
Slope-intercept form of a linear function: [tex]y = mx + b[/tex]
(where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept)
Point-slope form of a linear function: [tex]y-y_1=m(x-x_1)[/tex]
(where [tex]m[/tex] is the slope and [tex](x_1,y_1)[/tex] is a point on the line)
Slope formula
[tex]\textsf{slope}=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
(where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are points on the line)
Solution
Choose 2 points on the line:
Let [tex](x_1,y_1)[/tex] = (0, 4)Let [tex](x_2,y_2)[/tex] = (1, -3)Find the slope using the slope formula:
[tex]\implies \textsf{slope}=\dfrac{-3-4}{1-0}=-7[/tex]
Substitute found value for [tex]m[/tex] and point (0, 4) into the point-slope formula:
[tex]\implies y-4=-7(x-0)[/tex]
[tex]\implies y=-7x+4[/tex]
Find angle measure x on each given figure. (Lessons 9.2, 9.4, 9.5)
1. x = 60 (in this trapezoid, opposite angles are equal)
2. Find the third angle of the left triangle : 180 - 17 - 133 = 30
In a parallelogram, the side that is opposite to a side is parallel to each other.
x and the 30 degree are alternate angles -> x = 30
3. (I'll call the 4 triangles A,B,C,D respectively in anticlockwise)
Triangle A has the 25 degree angle, and the bottom right angle of triangle C, they are alternate angles (and the sides are parallel due to the property.)
So, the bottom right angle of triangle C = 25
Triangle C and D form an isoceles triangle, so x = 25.
4. This one I'll just do short. There's a right angle in the triangle that contains x.
3 angles in a triangle add up to 180, so x = 180 - 90 - 50 = 40.