Answers
Answer:
C
Step-by-step explanation:
Related Questions
100 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE SHOW STEPS TO ALL PARTS
Use the function f(x) to answer the questions:
f(x) = 4x2 − 7x − 15
Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Part B: Is the vertex of the graph of f(x) going to be a maximum or a minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)
Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)
Answers
Answer:
Part A & B
Step-by-step explanatPart A:
f(x) = 4x ^ 2 - 7x - 15
0 = 4x ^ 2 - 7x - 15
a = 4, b = -7, c = -15
a x c = -60
-12 x 5 = -60
-12 + 5 = -7
(4x + 5)(4x - 12)
4x ^ 2 - 12x I + 5x - 15
4x(x - 3) + 5(x - 3)
(x - 3)(4x + 5)
x = 3 x = -1.25 or -5/4
Part B:
Minimum point
(x1 + x2)/2
(3 -1.25)/2 = 0.875
f(x) = 4x ^ 2 - 7x - 15
f(0.875) = 4(0.875) ^ 2 - 7(0.875) - 15
f(0.875) = 3.06 - 6.125 - 15
f(0.875) = -18.065ion:
Eli made 2 peanut butter jelly sandwiches and cut each one into fourths. How many 1/4 sandwich pieces can Eli have?
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This is for today can someone help me!!!
Answers
Answer:
14.
let me know if you want the steps
A group of friends were working on a student film. They spent $476 on equipment, which was 85% of their total budget. What was the total budget for their student film?
Answers
10. Select all of the phrases that could be represented by the algebraic expression 2k - 4
a. The difference between number k and 4
b. 4 fewer than the product of 2 and a number k
c. The product of 2 and the quantity 4 and a number k
d. 4 less than 2 times a number k
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one more guys, can you guys help me?
Answers
Answer:
A
Step-by-step explanation:
X is less than -7 because the open circle indicates that x is not -7
5/7 = x/11 round your answer to the nearest tenth.
Answers
Answer:
7.9
Step-by-step explanation:
Multiply both sides of the equation by 11. This cancels out the fraction so 11 * 5/7 = x
lmk if I misunderstood the question or need to elaborate
Pls help!!!! Will give points! And brainlest
Answers
Answer: 3/7
Step-by-step explanation:
3/4 of 4/7 is the same as 0.75*4/7 which equals 0.429 or as a fraction is 3/7
Answer: 3/7
Step-by-step explanation: look below
The number 70 is decreased to 41. What is the percentage by which the number was decreased, to the nearest tenth of a percent?
Answers
Answer:
Decreased percent = 41.4 % (Approx.)
Step-by-step explanation:
Given:
Old number = 70
New number = 41
Find:
Decreased percent
Computation:
Decreased number = 70 - 41
Decreased number = 29
Decreased percent = [29 / 70]100
Decreased percent = 41.42%
Decreased percent = 41.4 % (Approx.)
How could you add -13 + 10 ?
Pleaseeee help pleasee Thanks !!
Answers
Answer:
Choice A
Step-by-step explanation:
Answer:
A. Add 13 + 10, and keep the negative sign from - 13.
- 13 + 10
10 - 13 = - 3
Which mapping does not represent a function?
Answers
it leaves a number out, resorting it to not be a function.
what is y=x+2and 2x+y=8
Answers
Answer:
1. x=y−2
2. -1/2y + 4
Step-by-step explanation:
If you help me i’ll mark you brainlyest!!
Answers
Answer:
y=3x-4
Step-by-step explanation:
The points (1,6) and (3, 10) fall on a particular line. What is its equation in slope-intercept form?
Answers
Answer:
y=2x+4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(10-6)/(3-1)
m=4/2
m=2
y-y1=m(x-x1)
y-6=2(x-1)
y=2x-2+6
y=2x+4
help a gal out please
Answers
Answer: negative, linear association
Step-by-step explanation:
A right angled triangular prism has length 3m, breadth 2m and height 2.5m. If the mass of the prism is 3.4kg, find its density
Answers
Answer:
The density of the prism is 0.453 kilograms per cubic meter.
Step-by-step explanation:
Let suppose that mass in the prism is uniformly distributed. Then, the definition of density ([tex]\rho[/tex]), in kilograms per cubic meter, is defined by the equation below:
[tex]\rho = \frac{m}{V}[/tex] (1)
Where:
[tex]m[/tex] - Mass, in kilograms.
[tex]V[/tex] - Volume of the right angle triangle prism, in cubic meters.
Besides, the volume of the right angle triangle prism is:
[tex]V = \frac{1}{2}\cdot b\cdot h\cdot l[/tex] (2)
Where:
[tex]b[/tex] - Breadth of the base, in meters.
[tex]h[/tex] - Height of the base, in meters.
[tex]l[/tex] - Length of the base, in meters.
If we know that [tex]b = 2\,m[/tex], [tex]h = 2.5\,m[/tex], [tex]l = 3\,m[/tex] and [tex]m = 3.4\,kg[/tex], then the density of the prism is:
[tex]V = 7.5\,m^{3}[/tex]
[tex]\rho = 0.453\,\frac{kg}{m^{3}}[/tex]
The density of the prism is 0.453 kilograms per cubic meter.
What is the area of this shape?
Answers
Answer:
37 cm^2
Step-by-step explanation:
1. find the answer of the bigger rectangle
7cm*3cm=21cm^2
2. Find the smaller rectangle
15cm-7cm=8cm
8cm*2cm=16cm^2
3. add the two areas
21cm^2 + 16 cm^2 = 37cm^2
An equation is written
ac-b=1
Based on the equation, which is a true statement?
Answers
Answer:
Step-by-step explanation:
Simplify the expression x - 2/3 - 1/2x .
(A) 1/2x - 2/3
(B) -1/3x - 3/4
(C) 1/4x - 1/2
Answers
Answer:
View Highlighted Part in Picture!
Step-by-step explanation:
Mark me Brainliest?
find the slope of the line of best fit shown below.
Answers
Which of the following relations is a function
Answers
Form a quadrilateral with exactly one pair of parallel sides.
Answers
Answer:
A trapezoid is a quadrilateral with exactly one pair of parallel sides.
Step-by-step explanation:
hope this helped
Find the volume of the cone.
Either enter an exact answer in terms of # or use 3.14 for and round your final answer to the nearest hundredth.
Answers
Answer:
v ≈ 78.54
Step-by-step explanation:
v = π [tex]r^{2}[/tex] [tex]\frac{h}{3}[/tex]
so v ≈ 78.54
Select no real solution, one real solution, or infinitely many real solutions for each of the following equations.
No Real Solution One Real Solution Infinitely Many Real Solutions
√x – 13=-4
2√x+10=8
2/x-1= 3/x+2
Answers
Answer:
one real solution
no real solution
one real solution
Step-by-step explanation:
Find the indicated probability. Express your answer as a simplified fraction unless otherwise noted. If one of the 255 subjects is randomly selected, find the probability that the person is over 40 given that he or she is a root beer drinker.
A.) 5/17
B.) 6/17
C.) 15/17
D.) 2/5
Answers
Answer:
B) 6/17
Step-by-step explanation:
P( root beer AND over 40)/P(over 40)
30/(20+30+35)
30/85
6/17
Which ordered pair describes the location of the point shown on the
coordinate system below?
10.
10
10
A. (3,-5)
B. (-5,3)
C. (3,5)
D. (-5, -3)
Answers
Your answer is A!
Step-by-step explanation:
Your answer is A!
The coordinate point from the given graph is (3, -5). Therefore, option A is the correct answer.
What is coordinate plane?A coordinate plane is a two-dimensional surface formed by two number lines. It is formed when a horizontal line (the X-axis) and a vertical line (the Y-axis) intersect at a point called the origin. The numbers on a coordinate grid are used to locate points.
From the given coordinate plane, the coordinate point lies in fourth quadrant.
Where, x-coordinate is positive and y-coordinate is is negative.
The coordinate point correspond to x-axis is 3 and coordinate point correspond to y-axis is 5.
So, the coordinate point is (3, -5)
Therefore, option A is the correct answer.
Learn more about the coordinate plane here:
https://brainly.com/question/24134413.
#SPJ5
help plz giving brainlest
Answers
Answer:
The answer is F 10, 20, 30, 40, 50 For every 1 hour you earn 10 dollars and it keeps going
A student wants to compare the mean times needed to access flight information for two major airlines. 20 randomly selected students accessed one airline's Web site, and the time required to locate the flight information had a mean of 2.5 minutes and a standard deviation of 0.8 minute. 20 different randomly selected students accessed the other airline's Website, and the time required to locate the flight information on that site had a mean of 2.1 minutes and a standard deviation of 1.1 minutes. Assuming that the conditions for inference are met, which of the following statements about the p-value is true?A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two WebsitesB. The p-value is greater than 0.01 but less than 0.05; therefore, there is a significant difference in mean search times on the two WebsitesC. The p-value is greater than 0.05 but less than 0.10; therefore, there is a significant difference in mean search times on the two WebsitesD. The p-value is greater than 0.10; therefore, there is no significant difference in mean search times on the two WebsitesE. Since this is a matched-pairs situation, additional information is needed to perform a test of significance.
Answers
Answer:
The statement which can be true about the p-value is;
A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites
Step-by-step explanation:
Whereby the p-value is less than the significance level or pre-defined number we reject the null hypothesis that there is no difference in the mean time it takes to access the Websites of the two major airlines
Where the p-value is larger than the significant level, we fail to reject the null hypothesis and therefore, there is not enough evidence to indicate that the mean time to access the Websites of the two major airlines are different
The p-value is compared with a given level for the test, for it to be assed
The option that has the correct inference based on only one significant level or predefined is the p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites
The statement which can be true about the p-value is (A).
A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites
What is the p-value?
The p-value in statistics is the likelihood of getting outcomes at least as severe as the observed results of a statistical hypothesis test, given the null hypothesis is valid.
The reason for option A is correct.
We reject the null hypothesis that there is no difference in the meantime it takes to visit the Websites of the two main airlines when the p-value is less than the significance level or pre-defined number.
We fail to reject the null hypothesis when the p-value is greater than the significant threshold
Hence there is insufficient evidence to suggest that the meantime to visit the websites of the two main airlines is different.
For the test to be assessed, the p-value is compared to a predefined level.
The p-value is less than 0.01 in the option that has the accurate inference based on only one significant level or predetermined; hence, there is a considerable difference in mean search times.
To learn more about the p-value refer to the link;
https://brainly.com/question/17257574
need helps pleaseeeeeeeeeeee
Answers
Answer:7-11
Step-by-step explanation:I am not sure but I think you just put 7 and 11 hope this helps but have a answer on the side just in case I am wrong
9x + 10 * 7 = -11
9x + 70 = -11
9x + 70 - 70 = -11 - 70
9x = -81
9x / 9 = -81 / 9
x = -9
help please i need this in by midnight
A 12-ounce cup of coffee costs $2.88. If the unit price remains the
same, how much would 3 quarts of coffee cost?
Answers
So the price is $23.04