Answers
Step-by-step explanation:
f(x) = (x + 3)(x - 5)
In a Quadratic curve, the x-coordinate of the vertex is equidistant to the x-intercepts. (If they exist)
In f(x), our x-intercept are x = -3 and x = 5.
=> (-3 + 5)/2 = 1.
Hence the x-value of the vertex is 1.
Related Questions
How do I solve this using substitution? Please write down the steps too.
6x+5y=-16
y=7x+5
Answers
Answer: x = -1 and y = -2
Step-by-step explanation:
You are given two expressions that have a relationship. There are two ways to solve this problem, but I will be going over the easy way. I'm assuming you know how to solve for one variable such as x? Well we can put the y varaible from the first equation in terms of x, from the second equation. Ill show you what I mean:
6x + 5(7x + 5) = -16
I replaced y in the first one in terms of x, so that we can solve just for x.
6x + 35x + 25 = -16
41x +25 = -16
41x = -41
x = -1
Now simply find y by plugging the now known x value into either equation
y = 7(-1) + 5
y = -2
Answer:
x = -1
y = -2
( -1, -2 )
Step-by-step explanation:
6x + 5y = -16
They gave us what "y" is and its....
y = 7x + 5
We substitute the "y" in the equation with this "y = 7x + 5
"
6x + 5y = -16
6x + 5(7x + 5) = -16
Now we need to use the distributive property (multiply what is in the parenthesis by "5")
6x + 5 * 7x + 5 * 5 = -16
6x + 35x + 25 = -16
Combine Like Terms ( 6x and 35x)
41x + 35 = -16
Subtract 25 on both sides
41x + 35 - 25 = -16 - 25
41x = -41
Divide by 41 on both sides to isolate the variable
41x/41 = -41/41
x = -1
Now that we have what "x" is (-1) we can use that to find out what "y" is.
y = 7x + 5
Substitute the x with -1
y = 7x + 5
y = 7(-1) + 5
y = -7 + 5
y = -2
x = -1
y = -2
( x, y )
( -1, -2 )
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Find the slope of the line.
Answers
Answer:
A. 1/7
Step-by-step explanation:
Answer:
I´m pretty sure the answer would be A, 1/7.
Step-by-step explanation:
The formula for slope is y²- y¹/x²- x¹.
The inequality 5m − 7 > 16 holds true for all numbers than in the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.
Answers
Answer:
{5, 6, 7, 8, 9, 10}
Step-by-step explanation:
Given the inequality
5m - 7 > 16
Add 7 to both sides
5m-7+7>16+7
5m>23
Divide both sides by 5
5m/5>23/5
m>4.6
Hence the value of m are the values in the set greater than 4.6 and they are {5, 6, 7, 8, 9, 10}
Can someone help me pls!!!!
Answers
Answer:
if your looking for the slope it would be 3/1. that is 3 over 1
HELP I AM TIMED!!! I will give 10 points
Answers
is this a domain or range?
please help :(
Answers
Step-by-step explanation:
it's a function.
the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
the domain is (1,3,7,8)
the range is (2,4,6,9)
A country in Europe has a population of 4.5×106 4.5 × 10 6 people. A neighboring country has a population of 2.6×107 2.6 × 10 7 people. What is the total population of the two countries?
A. 3.05 x 10 7 people
B. 7.1 x 10 7 people
C. 7.1 x 10 13 people
D. 3.05 x 10 14 people
Answers
Answer:
C
Step-by-step explanation:
Need help ASAP
Thanks+ BRAINLIST only for correct answers (the answer negative is wrong)
Answers
A theater has a total of 750 seats. There are 30 rows of seats in the theater. Each row has the same number of seats. What is the total number of seats in each row of the theater?
Answers
Answer:
In the first row, there are 30 seats.
In the the second row, there are 30 seats.
In the third row there are 30 seats.
In the twenty-fifth row, there are 30 seats.
The answer is 25*30 = 750 seats
Step-by-step explanation:
Answer:
25 seats per row
Step-by-step explanation:
750 seats / 30 rows = 25 seats per row
$2500, 4.5%, 2 years
Answers
Answer:
si=part
=2500×0.045×2
=225...
the answer is C
Devont had a handful of dimes and quarters in his pocket. He counted 41 coins and realized they were worth $7.55. Write and solve a system of linear equations to determine the number of dimes and quarters Devont had.
Answers
Answer:D:18 Q:23
Step-by-step explanation:
g−9=−19
Help plz
Pleaseeeeee
Answers
Answer:
g = -10
Step-by-step explanation:
Pls help
It due asap
Answers
((x1+x2)/2 , (y1+y2)/2) = ((1+3)/2 , (-2+2)/2)
= ( 2,0)
Answer:
D. (2,0)
Step-by-step explanation:
The x coordinates are 1 and 3. The number in the middle of them is 2.
The y coordinates are -2 and 2. The number in the middle of them is 0.
so you get (2,0)
Write an expression showing the sum of 9 and a number h.
Answers
Answer: I believe it's 9+h
Step-by-step explanation:
find the measure of the exterior angle in the following triangle DUE SOON I’LL GIVE BRAINLIEST
Answers
Answer:
A. 125
Step-by-step explanation:
the sum of the remote angles is equal to the exterior angle
90+35=125
Answer:
125°
Step-by-step explanation:
First find the interior angle. Sum of all the angles in a triangle is 180°.
180 - (90 + 35) = 55
A straight angle is also 180°
180 - 55 = 125
heyyy wanna help mee
Answers
Answer: Only j = 2
============================================
Explanation:
Let's solve for j
[tex]\frac{96}{j} \ge 40\\\\96 \ge 40j\\\\\frac{96}{40} \ge j\\\\2.4 \ge j\\\\j \le 2.4[/tex]
In the second step, I multiplied both sides by j. If j is a positive number, then the inequality sign will not flip. All of the answer choices are positive numbers, so we don't have to worry about the inequality sign flipping.
The last step shows that j = 2.4 or j < 2.4
So j is 2.4 or smaller.
Of the list given to us, only j = 2 fits the description, since something like j = 8 is not 2.4 or smaller.
---------------------------
If j = 2, then,
[tex]\frac{96}{j} \ge 40\\\\\frac{96}{2} \ge 40\\\\48 \ge 40\\\\[/tex]
which is a true statement since 48 is larger than 40. This shows that j = 2 is a solution.
Something like j = 8 does not work because
[tex]\frac{96}{j} \ge 40\\\\\frac{96}{8} \ge 40\\\\12 \ge 40\\\\[/tex]
which is false because 12 is not equal to 40 or larger than 40. This means j = 8 is not a solution. You should find that j = 12 and j = 3 lead to similar false statements.
Of the list given, j = 2 is the only solution.
______________________________
1.) Solve using j = 12:Plug in 12: [tex]\frac{96}{12}[/tex] ≥ [tex]40[/tex]Divide 96 by 12: [tex]=8[/tex] Compare: [tex]8[/tex] ≥ [tex]40[/tex]
So this is False.
2.) Solve using j = 8:Plug in 8: [tex]\frac{96}{8}[/tex] ≥ [tex]40[/tex]Divide 96 by 8: [tex]=12[/tex] Compare: [tex]12[/tex] ≥ [tex]40[/tex]
So this is False.
3.) Solve using j = 2:Plug in 2: [tex]\frac{96}{2}[/tex] ≥ [tex]40[/tex] Divide 96 by 2: [tex]=48[/tex]Compare: [tex]48[/tex] ≥ [tex]40[/tex]So this is True.
4.) Solve using j = 3:Plug in 3: [tex]\frac{96}{3}[/tex] ≥ [tex]40[/tex]Divide 96 by 3: [tex]=32[/tex] Compare: [tex]32[/tex] ≥ [tex]40[/tex]So this is False.
______________________________
What is meant by the included angle in SAS congruence theorem?
Answers
Answer:
The included angle means the angle between two sides. In other words it is the angle 'included between' two sides. In which pair of triangles pictured below could you use the Side Angle Side postulate (SAS) to prove the triangles are congruent? It is the only pair in which the angle is an included angle.
Step-by-step explanation:
Find the value for X below
stop putting fake answers im reporting them all lol
Answers
Answer:
41
Step-by-step explanation:
Since a triangle is 180 degrees ans the triangle is on the right is equal to the triangle on the left, all you have to do is take 180 and subtract 86 and 53 from it to get 41. There's also the fact that the length of all the sides are the same so that can also mean that the angles are the same.
(−0.75x − 7) − (7.5x + 5.4) simplified
Answers
Answer:
[tex]-0.75x-7-7.5x-5.4=-8.25x-12.4[/tex]
Step-by-step explanation:
Given the expression
[tex]\left(-0.75x-7\right)-\left(7.5x+5.4\right)[/tex]
Remove parentheses: (-a) = -a
[tex]=-0.75x-7-\left(7.5x+5.4\right)[/tex]
As we know that: - (7.5x + 5.4) = -7.5 - 5.4
[tex]=-0.75x-7-7.5x-5.4[/tex]
Group like terms
[tex]=-0.75x-7.5x-7-5.4[/tex]
Add similar elements: -0.75x - 7.5x = -8.25x
[tex]=-8.25x-7-5.4[/tex]
Subtract the numbers: -7 - 5.4 = -12.4
[tex]=-8.25x-12.4[/tex]
Therefore, we conclude that:
[tex]-0.75x-7-7.5x-5.4=-8.25x-12.4[/tex]
i need help i dont understand
Answers
Answer:
d
Step-by-step explanation:
Is LeBron James a more consistent scorer at home than on the road? During the 2008-2009 regular season at home, he has a mean of 25.35 points, with a standard deviation of 7.94 points in 40 games; while on the road, he had a mean of 31.46 points, with a standard deviation of 8.63 in 41 games.
a)Is 7.94 LeBron’s observed standard deviation at home or his true standard deviation at home? Explain.
b)State the hypotheses you would use to test if LeBron is more consistent at home.
c)Calculate the difference in standard deviations (road-home) and use this as the test statistic.
d)Describe how to simulate the distribution of the test statistic, assuming that LeBron is equally consistent at home and on the road.
e)Here are the results of 100 trials of the simulation. Describe what information is provided by the dotplot.
f)Based on the results of the simulation, estimate and interpret the p-value.
g)Based on the p-value, make an appropriate conclusion.
h)If your conclusion is in error, which type of error did you make? Explain.
Answers
Answer:
I'm pretty sure it's A but not for sure
Step-by-step explanation:
Please help!!
Will mark brainliest
Answers
Convert 8 ounces to pounds.
-128 pounds
-64 pounds
-1 1/2
-5 pound
-1 pound
Answers
Answer:
8oz = .5lbs
128lb = 2,048oz
64lbs = 1,024oz
1 1/2lbs = 24oz
5lbs = 80oz
1lb = 16oz
Step-by-step explanation:
Answer:
if am right it 1/2 if i didnt help am sorry
Step-by-step explanation:
btw way can u answer one of my question pls *smile* :)
Please help, I will be giving brainlist.
Answers
Answer:
b
Step-by-step explanation:
Answer:
o B 6 inches.
Step-by-step explanation:
Proportions:
13 in ⇔ 9.75 in
8 in ⇔ X in
X = 8*9.75/13
X = 6 in
HELP ASAP!!!! NEED HELP!!!
Answers
Answer:
7..?
Step-by-step explanation:
I belive that just by estimations, apologies.
Find the measure of angles 1, 2, 3, and 4.
m< 1 = (4y—18)
m< 3= (5x-11)
m< 2 = (y + 14)
m< 4 = (x + 5)
Answers
Answer:
49
23
56
45
Step-by-step explanation:
9x3^15 can be written as 3^n. What is the value of n
Answers
used a calculator
Answer:
so n=17
Step-by-step explanation:
9=3²
3²×3¹⁵= 3¹⁷
please mark the brainliest❤❤
Alice has 8 acres of orchards.
Alice grows apple trees in 4 acres of the orchards
She grows pear trees in the rest.
How many acres of pear trees does Alice have?
Answers
Answer:
4
Step-by-step explanation:
8-4=4
difference in acres
y = -3x – 2
6x + 2y = -4
Answers
Answer:
y= -3x -2
Step-by-step explanation:
Solve the system of equations - x - 2y = 3 and 3x + 7y = -14 by combining the equations.
Answers
Answer:
x=7
y=-5
Step-by-step explanation:
multiply first equation by 3 and add the 2 equations together. plug y back into the equation