Please help need this done by tonight!!!!!!
Kira wants to graph y = -3(x + 1)(x - 3). They think that it will be a
downward-opening parabola. They think that it has x-intercepts at (1, 0)
and (-3, O). They think that the axis of symmetry, or x-coordinate of the
vertex, will be halfway between 1 and -3, or -1. They substitute that into
their function, and get a y-coordinate of O. So, they graph their work, and
get what is shown. Explain whether you agree or disagree with Kira's work,
and if you disagree, what you think should be done differently. Answer
specifically about x-intercepts, the midpoint and axis of symmetry, and
vertex of the graph.
Answers
Answer:
it would be upward not downward
Step-by-step explanation:
I disagree with Kira's work,
Related Questions
please help me on this!
Answers
Answer:
[tex] {9}^{ - 8} [/tex]
Step-by-step explanation:
[tex] \frac{ {9}^{ - 5} }{ {9}^{3} } [/tex]
[tex] {9}^{ - 5 - (3)} [/tex]
[tex] {9}^{ - 5 + (- 3)} [/tex]
[tex] {9}^{ - 8} [/tex]
PLEASE HURRY 3 minutes left
Answers
Answer:
The answer might be 3(21b-11a)/77ab
Step-by-step explanation:
Answer:
Step-by-step explanation:
63b-33a/77ab
Identify the initial amount and the growth rate of the following:
Y = 9.8 (1.35)^t
Answers
The initial amount is when t = 0, so it is 9.8 * 1 = 9.8. The growth rate is how much the amount goes up by for every increase of 1 in t. This is 1.35 because that is the part being affected by t. we plug in 0 for t to get 9.8 as the initial amount. The growth rate is just 135% factor, or 35% more each time, because 1.35 is the base of the exponent.
EMERGENCY, EMERGENCY, I WILL GIVE BRAINLIEST
[tex]\frac{1}{4} (2x^{2}-12) = 15[/tex]
Solve for x, do ur steps!!!!!!
Answers
: 1/2x^2-3=15
then you have to add three to both sides so it become
: 1/2x^2=18
then divide by 1/2 to get
:x^2 =36
then take the square root to get a final answer of
:x=6
A shirt marked $320.00 was sold at a discount of 5%. What was the selling price?
Answers
Answer:
304
Step by step:
Using your calculator 5% of 320 is 16.
Since it was a discount, you subtract 16 since you're marking it down.
320-16=304
304 is your answer
How do I know? Well, there it takes 20+20+20+20+20 to equal a hundred. We can do this same math for this problem. 16 x 20 is 320
Answer:
$304.00
that is really freaking expensive shirt lol.
i thought you said shlt, not shirt lol
anyway...
Step-by-step explanation:
320 times 0.05
(don't make the mistake of 0.5 that is 50%, not 5%. )
320*0.05= 16
subtract it
320-16= 304
Which function passes through the points (2, 15) and (3, 26)?
A.
y = 11x + 7
B.
y = 11x − 7
C.
y = 7x + 11
D.
y = -11x − 7
E.
y = 7x − 11
Answers
Answer:
its b
Step-by-step explanation:
i need points sorry
which one is greater 3.406 or 3.501
Answers
Answer:
hi its 3.501
Step-by-step explanation:
Which of the following is the equation of an ellipse centered at (4,-1) having a
horizontal minor axis of length 14 and a major axis of length 20?
Answers
Answer:
B for me
Step-by-step explanation:
Yun lang po correct me if iam wrong
The Required equation for the ellipse is given by [tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex] Option B. is correct
What is an ellipse?Ellipse is cross-section part of a cone structure when cutting it out a horizontal cross-section of a cone.
(x-h)^2/a^2 + (x-k)^2/b^2 = 1
(h,k) = centre of the ellipse.
a, b = semi minor or major axis,
[tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex]
thus, the required equation of ellipse is given by [tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex].
Learn more about ellipse here:
https://brainly.com/question/14281133
#SPJ2
Tyler is simplifying the expression 6−2x+5+4x. Here is his work: 6−2x+5+4x (6−2)x+(5+4)x 4x+9x 13x Tyler's work is incorrect. Explain the error he made. Simplify the expression 6−2x+5+4x.
Answers
The simplified answer should be 2x+11
Answer:
step 2
Step-by-step explanation:
he was not supposed to multiply by x
he was supposed to combine like terms
add -2x and 4x and add 6 and 5
its all in the picture
Answers
Answer:
6
Step-by-step explanation:
..............................
Answer:
f(- 3) = 6
Step-by-step explanation:
f(- 3) means what is the value of f(x) when x = - 3
Locate x = - 3 on the x- axis
Then go vertically up to meet the graph at (- 3, 6 )
The value of f(- 3) is therefore 6, that is
f(- 3) = 6
Pls help, some question I already have the answer but its different from the book answer
Answers
You need to calculate the height of the cone which would be OV, not VB
Using Pythagorean theorem:
OV = sqrt(37^2-12^2)
OV = 35
Now you have the height to solve everything.
This is a semi circle so volume and surface area would be 1/2 of a full cone.
A) v = 1/2 x pi x r^2 x h/3
V = 1/2 x pi x 12^2 x 35/3
V = 1/2 x pi x 144 x 35/3
V = 840pi
B) sa =1/2 x pi x r(r + sqrt(h^2+r^2))
Sa = 1/2 x pi x 12(12+ sqrt(35^2+12^2))
Sa= 923.63 round as needed.
C) volume of hemisphere with 4cm diameter:
2/3 x pi x 2^3 = 5.33pi
Divide volume of semi cone by volume of hemisphere:
840pi/5.33pi = 157.5
large pizza costs $8.95, plus $0.65 for additional toppin. Remi paid $10.90 for a large pizza. How many additional toppings did she get?
Answers
Answer: 3 toppings
Step-by-step explanation:
I used a calculator
Answer:
3 toppings
Step-by-step explanation:
Express the ratio 12:3:9 in its simplest form
Answers
Answer:
4:1:3
Step-by-step explanation:
find the slope and the y-intercept of the line.
Answers
Answer:
Slope m = -5/4
y-intercept b = 3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Equality Properties
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
[Standard Form] -5x - 4y = -12
Step 2: Rewrite
Add 5x to both sides: -4y = 5x - 12Divide -4 on both sides: y = -5/4x + 3Step 3: Identify
Break apart the function.
Slope m = -5/4
y-intercept b = 3
in a survey of 500 voters 430 said they would vote for the same candidate again what percent of the voters would vote the same way again
Answers
Answer:
86%
Step-by-step explanation:
430 × 100 = 430 = 86%
500 1 5
you are going to cancel. 100 divided by 100 leaves 1. 500 divided by 100 is 5.
430×1= 430. 5×1=5. divide 430 by 5 and you"ll get 86.
X ≤ 2 x ≥ 2 -4 < x ≤ -2 -4 < , x, ≤ -2 -4 ≤ x ≤ -2 What is the domain of the function?
Answers
Answer:
really hard and strong but am interested
Sandra's tiles 5/4 square yards in 1/3 hour. find the unit rate
Answers
Answer:
3 3/4 in 1 hour
Step-by-step explanation:
Divide
5/4 ÷ 1/3
15/4
3 3/4 per hour
HELP ASAP PLEASE THIS QUESTION IS ABOUT FUNCTIONS SO IF U KNOW HOW TO DO FUNCTIONS PLEASE HELP I HAVE ASKED THIS LIKE MAYBE 4 TIMESSSSS :(
ALSO DONT PUT A RANDOM ANSWER AND TAKE THE POINTS I REALLY NEED HELP
Answers
Answer:
Domain: -3<=x<4
Range:-1<=y<-3
(can I get brainliest please)
Answer:
range: [-3,-1) domain: [4,-3); idrk know the second one srry.
Step-by-step explanation:
Two teams competed to raise money. Team 1 initially had $25 and collected $5 per day. Team 2 initially had $51 and collected $3 per day. On which day did the teams have the same amount of money?
Answers
Answer:
Day 13
Step-by-step explanation:
If you add on both side 13 time you get 90
I need to know this ASAP please! What is 2/3x + 1/3x?
Answers
Answer:
x
Step-by-step explanation:
2/3x+1/3x=x
Answer:
1
Step-by-step explanation:
2/3x + 1/3x
2+1/3x
3/3x
=x
one x value is 1
Can someone help me answer this?
Answers
Answer:
(30,60)
90mph
Step-by-step explanation:
-18 > -2(2x + 9) - 4+x
Answers
Answer:
x>-4/3 last answer i got i hope it is helpful have a nice day
i will give you brainiest :)
solve for k
9/10 = 10/k
Answers
Answer:
k = 100/9
Step-by-step explanation:
In this question, we will be solving for "k".
Solve:
9/10 = 10/k
Cross multiply.
(9 · k) = (10 · 10)
9k = 100
Divide both sides by 9
k = 100/9
Your answer would be k = 100/9
Evaluate 18y when y
= 2/3
Answers
Answer:
12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
18y
y = 2/3
Step 2: Evaluate
Substitute in y: 18(2/3)Multiply: 12Answer:
The answer (rounded) is 12.
Step-by-step explanation:
2/3=0.66666666666
18x0.666666666=11.999998 or 12
I know its a little confusing with the decimals but I can't solve problems with fractions, I have to convert them to decimals. XD
Round 382,713 to the neartst ten thosand
Answers
Step-by-step explanation:
it would be 380,000 I believe
Answer:
382710
Step-by-step explanation:
5. Which expression is equivalent to x2 - 17 x - 60?
Answers
this is the answer
What value of x makes the equation true?
3(4x-5)-4x+1=-6
Please show work
Answers
Answer:
x = 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
3(4x - 5) - 4x + 1 = -6
Step 2: Solve for x
Distribute 3: 12x - 15 - 4x + 1 = -6Combine like terms: 8x - 14 = -6Isolate x term: 8x = 8Isolate x: x = 1Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 3(4(1) - 5) - 4(1) + 1 = -6Multiply: 3(4 - 5) - 4 + 1 = -6Subtract: 3(-1) - 4 + 1 = -6Multiply: -3 - 4 + 1 = -6Subtract: -7 + 1 = -6Add: -6 = -6Here we see that -6 does indeed equal -6.
∴ x = 1 is the solution to the equation.
what is the answer to the question?
Answers
Answer:
120°
Step-by-step explanation:
m<ABD+m<DBC=m<ABC
61°+59°=120°
hope this helped!
Answer:
We conclude that the value of m∠ABC = 120°
Step-by-step explanation:
Given
m∠ABD = 61°
m ∠DBC = 59°
To Determine
m∠ABC = ?
It is clear that the value of m∠ABC can be determined by adding m∠ABD and m∠DBC because m∠ABC the segment BD divides the angle m∠ABC into two adjacent angles m∠ABD and ∠DBC.
Therefore,
m∠ABC = m∠ABD + m∠DBC
= 61° + 59° ∵ m∠ABD = 61°, m ∠DBC = 59°
= 120°
Therefore, we conclude that the value of m∠ABC = 120°
Чу- 8х + 5x - Зу
OOoO
Answers
Explanation: do 4y-3y which equals 1 which just equals Y. Then do -8x+5x which equals -3x
im gonna assume that ur just simplifying this equation so here it is
y-3x
hope this helped!!
Plz answer this!⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️
Answers
Answer:
1/2 ÷ 3/10
1/2×10/3
5/3
1 2/3
1) option is correct
9514 1404 393
Answer:
1) 1 2/3
Step-by-step explanation:
The model of choice 1 shows that 3/10 goes into 1/2 one and two-thirds times. That also happens to be the only model with the correct result.
1/2 ÷ 3/10 = 5/10 ÷ 3/10 = 5/3 = 1 2/3