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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)
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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:
What are the coordinates of point A (-2, 3) (-2,3) (-3,2) (-3,-2)
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Answer:
Pretty sure its -3,-2. not 100% sure but I am good at coordinates.
Step-by-step explanation:
Because you just go by the X axis first so that's -3 and then you go by the Y axis which is up and down and that would be -2. So its -3,-2.
Answer:Pretty sure it is -3,-2.
Step-by-step explanation:just follow the graph
The sum of the angle measures of the polygon is 540°. Write and solve an equation to find the value of x.
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Answer:
24x + 60 = 540
x = 20
Step-by-step explanation:
67 + 7x + 7x + 4x-4 + 6x-3 = 540
24x + 60 = 540
24x = 480
x = 20
solve for x: -(10+3x)=44
Answers
Answer:
x=-18
Step-by-step explanation:
-(10+3x)=44
substitute the minus sign to the bracket
-10-3x=44
-3x=44+10
-3x=54
divide both sides by -3
so x=-18
Paulo has 110 of a dollar in his pocket. How many dollars does he have?
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What is the median of 5, 9, 6, 6, 7, 5, 8, 7, 6
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Put them on order from least to greatest.
5, 5, 6, 6, 6, 7, 7, 8, 9
The middle number is the median.
The median of this number set is 6.
To find the median I first put all the numbers in numerical order-- 5, 5, 6, 6, 6, 7, 7, 8, 9-- and choose the number in the middle which is 6.
If this is incorrect, please, don't refrain to tell me. Thank you.
I WILL GIVE BRAINLIEST!!!
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Answer:
The second one ig......
Which of the following relations is a function
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Two of the angles of a triangle measure 30◦ and 45◦. How many degrees does the remaining angle measure?
A) 60
B) 75
C) 90
D) 105
E) Other
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Answer: 105 degrees, also D
Step-by-step explanation: sum of angles in triangle is 180 degrees
If AC = 30 and AE = 3x + 3, then x = ________.
If DC = 6x + 1, BC = 2y + 2, AB = 25, and AD = 14, then x = _______ and y = _______.
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Answer and Step-by-step explanation:
Part 1:
AE is equal to EC
3x + 3 + 3x + 3 = 30
6x = 24
x = 4
DC is equal to AB
6x + 1 = 25
6x = 24
x = 4
BC is equal to AD
2y + 2 = 14
2y = 12
y = 6
#teamtrees #PAW (Plant And Water) (Was told i couldn't use WAP, so I created PAW - The reverse order of the wording)
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:
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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?
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So the price is $23.04
. What is the negative solution to this equation?
8x2 – 4x = 363
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Answer:
- x = 81 and 3/4
Step-by-step explanation:
8 × 2 – 4x = 363
16 - 4x = 363
Subtract 16 from each side:
16 - 16 - 4x = 363 - 16
- 4x = 327
Divide each side by 4:
- 4x ÷ 4 = 327 ÷ 4
- x = 81 and 3/4
. A patio is built in the shape of a trapezoid, as shown. Determine the area of the patio.
15 ft
6 ft
8 ft
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Answer:
84 in²
Step-by-step explanation:
(15+6)0.5 * 8 = 21(0.5) * 8 = 10.5 * 8 = 84
Mind helping ? I have 9 more pictures I'll make u brainly, and a few coins
Thanks,
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ILL LITERALLY GIVE U BRAINLIEST JUST PLEASE HELP!!
1. Maria has a savings account. Every month she deposits $30 in it.
2. The graph shows the relationship between the months and the balance of Maria’s savings account.
3. Write an inequality to show when Maria will have more than $120 in her savings account.
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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)
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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.
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This is for today can someone help me!!!
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Answer:
14.
let me know if you want the steps
The Mackenzie family celebrates with movie night every Saturday night. Their favorite snack is popcorn mixed with M&Ms, and they think the perfect mixture is ounces of popcorn and ounces of M&Ms.
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Answer:
more info?
Step-by-step explanation:
A roll of tape has a circumference of 14.8 centimeters. The circumference decreases 2.4 centimeters after you use some of the tape. What is the diameter of the roll after you use the tape? ROUND to the nearest HUNDREDTH. I need answers quick
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Answer:
7.900 cm
Step-by-step explanation:
The computation of the diameter after using the tape is given below:
Since the circumference is 14.8 cm
And it would be decrease by 2.4 cm
So, the new circumference is
= 14.8 - 2.4
= 12.4 cm
Now the radius is
= 12.4 ÷ π
= 3.95
And, the diameter is
= 3.95 × 2
= 7.900 cm
How could you add -13 + 10 ?
Pleaseeee help pleasee Thanks !!
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Answer:
Choice A
Step-by-step explanation:
Answer:
A. Add 13 + 10, and keep the negative sign from - 13.
- 13 + 10
10 - 13 = - 3
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help
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Answer: The origin would be the red dot. The second and third quadrant would be on the left side. Remember that the quadrants are labeled in the shape of a C. Therefore, the top left would be the second and the bottom left would be the third.
Step-by-step explanation:
Answer:
The origin would be the red dot.
Step-by-step explanation:
The guy above me is correct.
one more guys, can you guys help me?
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Answer:
A
Step-by-step explanation:
X is less than -7 because the open circle indicates that x is not -7
help on this question
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Answer:
20(pie)
Step-by-step explanation:
Since the circumference of a circle is 20 feet, the formula for circumference is 2r(pie) with r=radius
(radius)2=diameter
(diameter)(pie)
20(pie)
Mei runs 60.36 miles in 4 weeks. If she runs 3 days each week, what is the average distance she runs each day?
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Answer:
15.09
Step-by-step explanation:
She ran only 12 times every 4 weeks, so we divide 60.36 by 4 which then becomes the result of running 3 days a week which means the answer is 15.09 because 15.09 multiplied by 4 is 60.36.
Answer:
The answer is 15.09.
Triangle E F G is shown. Angle G F E is a right angle. The length of G F is 3 and the length of E F is 4.6. Which equation could be used to find m∠E in △EFG? m∠E = cos–1(StartFraction 3 Over 4.6 EndFraction) m∠E = cos–1(StartFraction 4.6 Over 3 EndFraction) m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction) m∠E = tan–1(StartFraction 4.6 Over 3 EndFraction)
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Answer:
m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)
Step-by-step explanation:
Given the following
m<GFE = 90 degrees
GF = 3
EF = 4.6
The side opposite to m<E is GF
Adjacent side is EF
Using the SOH CAH TOA identity
tan theta = opp/adj
tan m<E =GF/EF
Substitute the given values
tan m<E = 3/4.6
m<E = tan^-1 (3/4.6)
Hence the required result is m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)
Answer:
The answer is c
Step-by-step explanation:
is the point (0,0) a solution for this system?
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Answer:(0,0) is not a solution of the system.
Step-by-step explanation: I think.
Pls help me with matching
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Answer:
Step-by-step explanation:
12+x=16
3x+y=19
4y-10=18
1/2xy=14
Answer:
12 + x = 16 because x is 4
3x + y is 19 because 3x is 12 and y is 7
4y - 10 is 18 because 4y is 28
1/2 xy is half of 28 or 14
hope this helps and brainliest please
10. Which of the following is equivalent to
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Answer:
H
Step-by-step explanation:
b/c is just b * 1/c which is shown in option H
What is the range for the third size of the triangle 13,24?
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Answer:
third side range
5
<
C
<
11
Step-by-step explanation: