Answers
Problem 1
ax^2+bx+c is standard form(x+p)(x+q) is factored formThere's not much to say about these. You'll just have to memorize the terms. Note with standard form that the exponents decrease as you move from left to right (2,1,0).
===============================================
Problem 2
Other names for zeros are:
A) x interceptsD) solutionsThe term "root" is also applicable here.
===============================================
Problem 3
We set each piece equal to 0 and solve for x. This is the zero product property
f(x) = (x-2)(x+4)
0 = (x-2)(x+4)
(x-2)(x+4) = 0
x-2 = 0 or x+4 = 0
x = 2 or x = -4
The two x intercepts are located at (2,0) and (-4,0)
Answer: Choice C
===============================================
Problem 4
In the last problem, we found the two roots were x = 2 and x = -4
I'll let p = 2 and q = -4.
Average the roots to get (p+q)/2 = (2+(-4))/2 = -2/2 = -1
This is the x coordinate of the vertex. So h = -1
Plug this into the function to find k, which is the y coordinate of the vertex.
k = f(h)
k = f(-1)
k = (-1-2)(-1+4)
k = (-3)(3)
k = -9
The vertex is located at (h,k) = (-1, -9)
This is another way of saying the vertex is when x = -1 and y = -9
Answer: Choice C
Related Questions
how do you solve x+2=2y?
Answers
Answer:
x=2y-2
Step-by-step explanation:
because you subtract 2 from both sides and you get x but if you want to get y you can do 2y=x+2 than bla bla bal and you get y=x+1
Answer:
x + 2 =2y
-2. -2
x = _
2 + 2 = 2 × 2 = 4
PLEASE HELP ASAPPP FOR 25 POINTS
The ratio of the length of the sides of a triangle is 1:2:3. If the perimeter of the triangle is 120 feet, then which of the following are the lengths of the sides?
10 ft, 40 ft, 70 ft
20 ft, 30 ft, 70 ft
20 ft, 40 ft, 60 ft
30 ft, 40 ft, 50 ft
Answers
Answer:
C: 20ft, 40ft, 60ft
Step-by-step explanation:
As they all equal 120, but 20 = 1, 40 is doubled 20 as 2 is doubled 1. and 60 is tripled 20 as 3 is tripled 1.
Hope this helps!
Answer: 20 ft, 40 ft, 60 ft
HELP PLEASE I WILL GIVE BRAINLEAST IF CORRECT
If 5th block class usually has 5 engaged students and it goes up to 9 engaged students, what is the change of percent?
Answers
Answer:
180%
Step-by-step explanation:
Im not sure I understood the problem
But 180% of 5 is 9
Describe the line of
best fit.
Type of Correlation
Slope m: Answer
y-Intercept b: Answer
Equation : Answer
Answers
Answer:
the line of best fit is almost linear
the type of correlation is strongly positive
the slope is approximately 1/1
the y-intercept is -11/5
equation: y = 27/25x - 11/5
Step-by-step explanation:
What is 5 divided by 7,685?
Answers
Answer: 0.00065062
Step-by-step explanation:
i used a calculator ✌️
13. Each side of a rhombus is 14 in. long. Two of the sides form a 60 angle. Find the area of the rhombus. Round your answer to the nearest square inch.
Answers
Answer:
170 in²
Step-by-step explanation:
Given that :
Side, a = 14 in
Angle formed =? 60°
Take height, = l
The ratio of height to side = Sine of the angle formed
l /s = Sine 60°
Sin 60 = sqrt(3)/2
l/s = sqrt(3)/2
l = sqrt(3)/2 * s
s = 14
l = 14 * sqrt(3)/2
l = 7sqrt(3)
Area of rhombus :
l * s
7sqrt(3) * 14
= 169.74097
= 169.74 in²
= 170 (nearest square inch)
can someone please help me, my teacher had to explain this but they did not explain it very well. This is due in 2 hours
Answers
Answer:
2 congruent sides are ab=mn, be=np and ea=pm
congruent angles are a=m, b=n and p=m
3 congruent sides are qr=jl,ry=ls and yq=sj
congruent angles are q=j,r=l and y=s
4 a LM
b SU
c TS
d U
e L
f angle thing MKL or angle K
g MKL
h LMK
5 a - 11 b - 13 c - 8 d - 45 e - 32 f - 103
Step-by-step explanation:
Question 5 of 5
Which number line shows the solution of -5x + 10 > -15?
A.
-10-9-8-7
6
4
-1
0
1
2
3
4
5
6
7
8
9 10
O
B.
109
-8
-7
-6
.5
-4
3
-2
1
0
1
2
3
6
7
8 9
10
-10-9-8
-7
-6
5
-4
-3
1
2
3
4
5
6 7 8 9 10
Answers
Answer:
b
Step-by-step explanation:
The correct number line should look like the one on the right in the image provided, with an open circle at 5 and the line shaded to the left of 5. Option B is correct.
What is a number line?A number line is defined as the number marked on the line calibrated into an equal number of units. For example -1, 0, 1, and so on.
Here,
To solve -5x + 10 > -15, we can start by subtracting 10 from both sides to get,
-5x > -25
Next, we can divide both sides by -5, remembering to flip the inequality sign because we're dividing by a negative number:
x < 5
This tells us that any number less than 5 will make the inequality true. So on the number line, we want to shade all the numbers to the left of 5.
The correct number line should look like the one on the right in the image provided, with an open circle at 5 and the line shaded to the left of 5. Option B is correct.
Learn more about number line here:
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PLEASE HELP ASAP!! WILL MARK BRAINLIEST
Answers
Answer:
4
Step-by-step explanation:
split it in half u get a subtract sing makes that (8-4=4)
Alexis wrote 28 - 8 = 20. Then she
wrote 28 -8 + 9 = 20 – 9. Are her
equations balanced? Explain.
Answers
Answer:
no this is because 28-8+9=29 and 20-9=11
Step-by-step explanation:
Answer:
Her equation is not balanced.
Because 28 - 8 + 9 = 20 - 9
29 = 11 ( its not balanced)
She put the same symbol or sign on both side.Here she put different sign on both side .so this equation is not balanced.
Step-by-step explanation:
help! pleasee!!!!! GRAPH!!
Answers
Answer:
a is the answer
Step-by-step explanation:
One way to compute a 20% discount is to multiply the price by 0.20. The price of a pair of sneakers is $84.50. Calculate the discount. Explain or show your reasoning.
Answers
Answer:
= 16.9
Step-by-step explanation:
One way to compute a 20% discount is to multiply the price by 0.20. The price of a pair of sneakers is $84.50. Calculate the discount.
Evaluate if N= -3.3 - n x n
Answers
Answer:
10.89
Step-by-step explanation:
-3.3 x -3.3 = 10.89
A negative times a negative is always a positive.
Answer: N=n 2 X - 3.3
Step-by-step explanation:
Explain how to solve the equation 2x+4=-6x+38 in complete sentences. Your response needs to be a paragraph in length and use appropriate math vocabulary
Answers
Answer:
×=17/4
Step-by-step explanation:
The equation 2x+ 4=-6x+38
First of all you collect like terms by moving the number -6x over to the left hand side which then becomes +6x as it crosses the equal to sign, likewise you move +4 over to the right hand side which then becomes -4. The equation is now 2x+6x=38-4, which when solved gives 8x=34. X is then made subject of formula by dividing both sides by 8 therefore x=34/8 which when reduced to the lowest term is 17/4
I hope it helps
y+5=1/4(x-12) equals what
plz i need help
Answers
x: 32/1 = 32.00000
y: -32/4 = -8
Here is another problem please help!
Answers
Answer:
A is 60
AC is 150
BC is 120..........
The is 1and 3/4 pounds of candy to be shared in bags that hold 1/4 pounds of candy. How many bags will be able to be made
Answers
Answer:
343
Step-by-step explanation:
WHAT WOULD THIS BEEEEEEE!!!!
Answers
Answer:
X=35°
Y=70°
Z=110°
I think this ans may help you
Answer and Step-by-step explanation:
We know that the lines are parallel. So,
x is equal to 70° because of vertical angles theorem.
y is equal to 70° because of interior angles theorem.
2z = y
2z = 70
z = 35
z is equal to 35 because of division property of equality.
#teamtrees #WAP (Water And Plant)
ayudenme con esto por favor D:
Answers
Answer:
A_el hijo vio 20 películas la hija vio 16 películas el padre vio 16 películas la madre vio 12 películas y los abuelos familiares vieron 6 películas
B_el hijo vio más películas y los abuelos vieron menos que todos
C_el padre y la madre vieron más películas dramáticas,y la madre y los abuelos familiares vieron menos películas comicas
Does anyone know how to explain this to me, please??
Answers
Answer:
x = 1
Step-by-step explanation:
The axis of symmetry is a vertical line passing through the vertex with equation
x = c ( c is the value of the x- coordinate of the vertex )
vertex = (1, - 1 ) with x- coordinate 1, then
x = 1 ← equation of axis of symmetry
what is 2 2/3 dived by 1 1/4 equal
Answers
22 1/2= 23/2
then we get:
(23/2)/(1/4)=?
we can flip the 1/4 to 4/1 and multiply instead of dividing so we get:
(23/2)X(4/1)=?
multiply numerators and denominators:
(23/2)X(4/1)=92/2
simify:
=46
The original price of a new television is $129.00. The television is marked down 25%, what is the new price?
Answers
Answer:
$32.25
Step-by-step explanation:
20% of $129 is $32.25
The number of wins for a high school football team is measured for the season. When the team plays at home, it is generally believed that they will win. Comparing the location of the game and the number of wins, a correlation coefficient of −0.91 is calculated. What would this imply about the football team winning at home?
1. The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning.
2.The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, but causation cannot be determined.
3.The scatter plot would not be represented by a line of best fit with a negative slope. There is a weak correlation between the football team playing at home and winning.
4. There is no causation and almost no correlation between the football team playing at home and winning.
Answers
Correlation coefficients are used to solve this question, leading to the following answer:
1. The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning.
-----------------------------------
Correlation coefficients:
They measure the relationship between variables, the closer |r| is to 1, the stronger the relationship is.
If the coefficient is positive, there is a positive relationship(both variables change in the same direction)If the coefficient is negative, there is a negative relationship(the variables change in opposite directions).-----------------------------------
In this question:
r = -0.91
Negative, so opposite directions, which can be explained as for example, the more the team travels(plays away games), the less games it wins.|r| = 0.91, which is quite close to 1, so a significant relationship.Negative relation means that the scatter plot would be represented by a straight line with a negative slope, and the correct answer is:1. The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning.
For more on correlation coefficients, you can check https://brainly.com/question/19560394
114, 142, 59, 122, 111, 128, 158, 79, 88, 107, 133,
131, 113, 152, 149, 99, 84, 112, 104, 109, 122,
131, 144, 155, 139, 142, 119, 80, 127, 140, 135
Put numbers in order from least to greatest
Answers
Answer:i think you can do this on your own all you need to know is counting ill give you the 1st 2 and you can do the rest 79,88.
Step-by-step explanation:
you just need to know how to count because if you just count to 1-200 you will know all the answers
hope this helps
Answer:
59, 79, 80, 84, 88, 99, 104. 107, 109, 111, 112, 113, 114, 119, 122, 122, 127, 128, 131, 131, 133, 135, 139, 140, 142, 142, 144, 149, 152, 155, 158
Step-by-step explanation: Uhm, well here?
At the grocery store, 6 pints of ice cream cost $14.40. How much would 40 pints of ice cream cost?
Answers
Answer:
$96
Step-by-step explanation:
14.40 / 6 = $2.40
$2.40 x 40 =
$96
Hope that helps!
The solution is $ 96
The cost of 40 pints of ice cream is given by the equation A = $ 96
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the cost of 40 pints of ice cream be A
Now , the equation will be
The cost of 6 pints of ice cream = $ 14.40
So , the cost of 1 pint of ice cream = cost of 6 pints of ice cream / 6
Substituting the values in the equation , we get
The cost of 1 pint of ice cream = 14.40 / 6
The cost of 1 pint of ice cream = $ 2.40
Now ,
The cost of 40 pints of ice cream A = 40 x cost of 1 pint of ice cream
Substituting the values in the equation , we get
The cost of 40 pints of ice cream A = 40 x 2.40
The cost of 40 pints of ice cream A = $ 96
Therefore , the value of A is $ 96
Hence , the cost is $ 96
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Mrs. Gohkle read 19 of her 36 new e-mails. How many new e-mails does she have left to read?
17
23
55
71
Answers
she has 17 email left to read
Find g(1) if g(x) = x 2 + 1.
Answers
Answer:
g(x) = x^2 + 1
if x=1
g(1) = 1^2 + 1
g(1) = 1 + 1
g(1) = 2
Answer:
g(1) = 2
Step-by-step explanation:
I) Setup an equation to find g(1):
x^2 + 1
1^2 + 1
II) Solve:
1^2 + 1
= 1 + 1
= 2
A bag contains 8 red marbles, 12 blue marbles, and 17 green marbles. If one marble is randomly selected
from the bag, what is the probability that the marble is red or green?
for
Answers
Answer:
There are 37 marbles.
Probability = (# favorable outcomes) / (# total outcomes)
P (r or g) = 25/37
3) 25/37
Step-by-step explanation:
The probability of red or green marbles is 0.676
How to determine the probability?The given parameters are:
8 red marbles, 12 blue marbles, and 17 green marbles
The number of red or green marbles is:
Red or Green = 8 + 17
Evaluate
Red or Green = 25
The probability of red or green marbles is:
P = 25/(8 + 12 + 17)
Evaluate
P = 0.676
Hence, the probability of red or green marbles is 0.676
Read more aboit probability at:
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(4x10^3) (7x10^4) perform the indicated computation
Answers
Answer:
28x^11000
Step-by-step explanation:
4x103(7x104)
Simplifies to:
28x11000
Which expression is equivalent to (7x + 6) - (4x + 2)?
Answers
Answer:
=(3x+4)
Step-by-step explanation:
Answer:
What r the options, I’ll help when u show the options
Step-by-step explanation: