answer is idk because it is a half
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.
Answer:
it would be upward not downward
Step-by-step explanation:
I disagree with Kira's work,
Mrs. Storz can ride her bike 6000 meters in 15 minutes. How far can she ride in 2 minutes?
Answer:
Mrs.Storz can ride her bike 800 meters in 2 minutes.
Step-by-step explanation:
So first we have to find the unit rate of this problem. We can do that by dividing. 6000 divided by 15 is 400. So the unit rate is 1 minute / 400 meters.
Now we multiply 400 by 2 and we get 800.
if you want to check ur answer, divide 6000 by 800. You get 7.5. Divided 15 by 2, you get 7.5 That proves they are equivalent.
So Mrs.Storz can ride her bike 800 meters in 2 minutes.
hope i helped :D
the sum of an even whole number and an odd whole number is always odd.
Answer:
wow, it is.
1+2=3
2+3=5
3+4=7
4+5= 9
5+6= 11
6+7= 13
and so on.
Step-by-step explanation:
It costs $20 to enter an amusement park and $0.50 to go on each ride. You have $24. How many rides are you able to go on?
Answer:
8 rides
Step-by-step explanation:
20 + .50x = 24
-20 -20
.50x = 4
/.50 /.50
x = 8
Answer:
8
Step-by-step explanation:
If you have $24 and you buy a $20 ticket to get in, you are left with four dollars.
Since each ride is $0.50 and that is half a dollar, you can multiply four times two. This gives you eight.
Therefore, you can ride 8 rides :)
Which function describes the arithmetic sequence shown? 1, 7, 13, 19, 25, 31
Answer:
D=6
Step-by-step explanation:
common defence is 6
hope it help you
a firefighter must cut a 2,700 foot rope into 75 equal pieces how long will each be?
Answer:
36
Step-by-step explanation:
75/2700=36
Web Gamer sells texture packs for video games. They charge an initial $5.50 software set-up fee and $15 for each texture pack purchased through their website. Which equation represents the situation?
Answer:
y=15x+5.50
Step-by-step explanation:
the y intercept or initial fee is 5.50 as written in the problem and the slope is 15 and a key word for that is each. meaning that y=15x+5.50
PLZZZ HELPPP Read the excerpt from "The New Marvel in Photography" by H. J. W. Dam.
In all the history of scientific discovery there has never been, perhaps, so general, rapid, and dramatic an effect wrought on the scientific centres of Europe as has followed, in the past four weeks, upon an announcement made to the Würzburg Physico-Medical Society, at their December meeting, by Professor William Konrad Röntgen, professor of physics at the Royal University of Würzburg. The first news which reached London was by telegraph from Vienna to the effect that a Professor Röntgen, until then the possessor of only a local fame in the town mentioned, had discovered a new kind of light, which penetrated and photographed through everything. This news was received with a mild interest, some amusement, and much incredulity; and a week passed. Then, by mail and telegraph, came daily clear indications of the stir which the discovery was making in all the great line of universities between Vienna and Berlin. Then Röntgen's own report arrived, so cool, so business-like, and so truly scientific in character, that it left no doubt either of the truth or of the great importance of the preceding reports. . . .
Exactly what kind of a force Professor Röntgen has discovered he does not know. As will be seen below, he declines to call it a new kind of light, or a new form of electricity. He has given it the name of the X rays.
The central idea of this excerpt is developed through
scientific proof.
cautious excitement.
medical facts.
Answer: cautious excitement
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Question 17 of 25
Which is the graph of the following inequality?
1x1 <3
A
5
-4
-2
-1
0
1
2
3
4
5
B.
-5
4
3
2
1
0
1
2
3
4
5
C.
-5
-4
3
2
-1
0
1
2
3
4
5
D.
-5
-4
-3
-2
1
0
1
2
3
4
5
A. Graph A
Answer:
I believe it’s C but not 100% sure
Step-by-step explanation:
Solve the equation 4y + 12 = 0.2 (20 + 60y)
Answer:
y=1
Step-by-step explanation:
Answer:
y=1
Step-by-step explanation:
You can use PEMDAS. The parenthesis go first so you get (4+12y), You then combine like terms and you'll get 12-4=12y-4y. The answer is 8=8y, so y =1. I would appreciate it if you can mark my response the brainliest if you can, thank you very much! :D
Evaluate the expression 9b−6b÷3b for b=7.
Answer:
The answer is 1.
Step-by-step explanation:
9 times 7 equals 63. 6 times 7 equals 42. 3 times 7 equals 21.
63 take away 42 is 21.
21 divided by 21 is 1!
Answer:
I'm not sure which one it is, so I did both.
1. 9b-(6b/3b) = 9b-2
b = 7
9(7)-2 = 61
2. (9b-6b)/3b = 1
If 10 cookies cost $2.00, how much will 25 cookies cost? Thank you!
Answer:
$5.00
Step-by-step explanation:
25 = 10 + 10 + 5
If 10 = $2.00,
20 = $4.00.
10 / 2 = 5,
and $2.00 / 2 = $1.00
$4.00 + $1.00 = $5.00
Hope this helps! Good luck!
Would a graph with a slope of 0 and a y intercept of 4 be proportional or not proportional?
9514 1404 393
Answer:
not proportional
Step-by-step explanation:
If the y-intercept is not zero, the graph does NOT show a proportional relationship. A y-intercept of 4 means the relation is not proportional.
please help, il mark brainliest for the right answer
Answer:
I think that it may be 33
Because, you see 15-9=6
so you do 20-9=11
Then you do 25-9=16
add them all together to get 33 so i think that's the perimeter
I am really not sure if this is correct...i'm kinda bad at stuff like this
n – 3 = -1 please solve this!!
Answer:
N = 2
Step-by-step explanation:
n - 3 = -1 Original
n ( -3 + 3 ) = ( -1 + 3 ) Add 3 on both sides
n = 2 Simplify
Check:
2 - 3 = -1 Replace
- 1 = -1 Solve
Correct!
Which value of p makes this equation true?
120 + 60p = 150 + 10p
6
1
3/5
5/3
Answer:
3/5
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
I need help with this
Answer:
the second one.
top right graph.
Step-by-step explanation:
A piano teacher gives lessons that are each Three-fourths hour long. How many piano lessons can the teacher fit into a 12-hour work day? Assume no breaks are taken in the 12 hour period.
Answer:
16 lessons
Step-by-step explanation:
12 divided by .75 = 16
Answer:
16
Step-by-step explanation:
The first company charges $3.50 per cubic foot of rock and $80 for delivery. The second company charges $2.50 per cubic foot of rock and $120 for delivery. Which system of equations can be used to determine the value of the width, x, at which the cost of the two companies, y, is the same?
Answer:
x = 40
Step-by-step explanation:
First company:
Charges = per cubic foot of rock fee + delivery fee
y = $3.50x + $80
Second company:
Charges = per cubic foot of rock fee + delivery fee
y = $2.50x + $120
Equate the charges of both companies
$3.50x + $80 = $2.50x + $120
3.50x - 2.50x = 120 - 80
x = 40
The cost of the two companies, y are equal when x = 40
Cell phone Plan B costs $50 per month but does not come with a phone. If you choose this plan, you will need to purchase a phone for $500. Let x = the number of months and y = the total cost of the cell phone plan. Write an equation to represent the cost of Cell phone Plan B. *
Given:
Cell phone Plan B costs $50 per month.
Cost of phone = $500
To find:
An equation to represent the cost of Cell phone Plan B. *
Solution:
We have,
Cost of phone = $500
Cost of cell phone Plan B for one month = $50
Let x be the number of months and y be the total cost of the cell phone plan.
Cost of cell phone Plan B for x months = $50x
Now,
Total cost of Cell phone Plan B = Cost of phone + Cost of cell phone Plan B for x months
[tex]y=500+50x[/tex]
Therefore, the required equation is [tex]y=500+50x[/tex].
In ΔSTU, s = 50 inches, t = 58 inches and u=27 inches. Find the measure of ∠S to the nearest 10th of a degree.
Step-by-step explanation:
By Cosine rule, we have
s² = t² + u² - 2(t)(u)(cosS)
=> cosS = (t² + u² - s²)/2tu
=> cosS = (58² + 27² - 50²) / (2 * 58 * 27) = 0.5086.
Therefore S = cos^-1(0.5086) = 59.4° (1d.p.)
The measure of ∠S is 59.4°.
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = 1/ cosec x
Cos x = 1/ sec x
Tan x = 1/ cot x or sin x / cos x
Cot x = cos x / sin x
We have,
ΔSTU:
s = 50 inches
t = 58 inches
u = 27 inches
Applying the cosines rule on ΔSTU.
s² = t² + u² - 2 x t x u x cos S
cos S = (t² + u² - s²) / 2tu
cos S = (58² + 27² - 50²) / (2 x 58 x 27)
cos S = (3364 + 729 - 2500) / 3132
cos S = 0.5086.
∠S = [tex]cos^{-1}[/tex](0.5086)
∠S = 59.4°
Thus,
∠s angle value is 59.4°.
Learn more about trigonometric identities here:
https://brainly.com/question/14746686
#SPJ2
dows any know what here goes ?
PLZ HURRY Last question i need a good grade
Answer:
C. The lines are perpendicular
Step-by-step explanation:
GO GET GOOD GrADE
Pam is making a border around her garden. She buys 9 bricks for her border. The bricks weigh 27 kilograms in all.
Answer:
Each brick weighs 3 kilograms.
Step-by-step explanation:
In order to find the weight per brick, we simply need to divide 27 by 9.
27 ÷ 9 = 3
Therefore, each brick weighs 3 kilograms.
Hope this helps! :D
Answer:
if you are looking for the weight for all of the bricks together then
the 9 bricks = 27 kilograms
so 27 ÷ 9 = 3
3 kilograms per brick
1 kilogram = 1000 grams
3 × 1000 = 3000
Each brick weighs 3000 grams.
Step-by-step explanation:
hope this helps and it's what you are looking for
Carolina uses 2/5 cup of sugar to make 1/2 dozen lemon bars. How many cups of sugar does she need to make one dozen? HELPPPPP ASAP!!!
Answer:
5 cups of sugar
Step-by-step explanation:
add
What is the answer for 5/35 = n/56?
Answer:
[tex]n = 8[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Equality PropertiesStep-by-step explanation:
Step 1: Define
[tex]\frac{5}{35} = \frac{n}{56}[/tex]
Step 2: Solve for n
Simplify: [tex]\frac{1}{7} = \frac{n}{56}[/tex]Cross-multiply: [tex]56 = 7n[/tex]Isolate n: [tex]8 = n[/tex]Rewrite: [tex]n = 8[/tex]Factor completely
7) 22 +5 - 30
I
8) 2x2 +7x+5
ULT
Factor completely
9) 25x+ - 49
10) 4x2 - 12x +9
Plz help fast take a picture of your work
Answer:
1: logical
2: Organic
3: Global
4: Classical
5: Musical
6: logical
7: editoral
8: Analytical
Step-by-step explanation:
I tried my best
which is greater -4/18 or -6 / 27
Answer:
the first one is correct
Step-by-step explanation:
brainliest plzzzz
Answer:
They are equal.
Step-by-step explanation:
If you simplify, you'll get -0.22222... for both fractions
Find the range of the function rule y=5x−2 for the domain.{−12, 14, 25}
Answer:
hmmm really interested but hard to get
and not easy
Answer:
{− 4 1/2, −3/4, 0}
Step-by-step explanation: