Each time he read his book, Paul recorded the number of minutes he spent reading and the number of pages he read in that time. He graphed this information, and decided that number of pages and time are related proportionally. Which graph is most likely the graph of his information?
Answer:
it a i had the same one
Step-by-step explanation:
Select the correct answer. What is the value of a in the function’s equation?
Answer:
[tex]a = -2[/tex]
Step-by-step explanation:
Given
The attached function (graph)
Required
Find a
The given function is quadratic and will be solved using:
[tex]y = ax^2 + bx + c[/tex]
From the attachment:
[tex](x,y) = (-3,4)[/tex]
[tex](x,y) = (-2,2)[/tex]
[tex](x,y) = (-4,2)[/tex]
Substitute these values in [tex]y = ax^2 + bx + c[/tex]
For: [tex](x,y) = (-3,4)[/tex]
[tex]4 = a(-3)^2 + b(-3) + c[/tex]
[tex]4 = 9a -3b + c[/tex]
For: [tex](x,y) = (-2,2)[/tex]
[tex]2 = a(-2)^2 + b(-2) + c[/tex]
[tex]2 = 4a -2b + c[/tex]
For: [tex](x,y) = (-4,2)[/tex]
[tex]2 = a(-4)^2 + b(-4) + c[/tex]
[tex]2 = 16a -4b + c[/tex]
So, we have:
[tex]4 = 9a -3b + c[/tex] --- (1)
[tex]2 = 4a -2b + c[/tex] ---- (2)
[tex]2 = 16a -4b + c[/tex] --- (3)
Make c the subject in (1)
[tex]c = 4 - 9a + 3b[/tex]
Substitute [tex]c = 4 - 9a + 3b[/tex] in (2) and (3)
[tex]2 = 4a -2b + c[/tex]
[tex]2 = 4a -2b + 4 - 9a + 3b[/tex]
Collect Like Terms
[tex]-4 + 2 = 4a - 9a-2b + 3b[/tex]
[tex]-2 = - 5a+b[/tex] --- (4)
[tex]2 = 16a -4b + c[/tex]
[tex]2 = 16a - 4b + 4 - 9a + 3b[/tex]
Collect Like Terms
[tex]2 -4 = 16a - 9a + 3b- 4b[/tex]
[tex]-2 = 7a -b[/tex] --- (5)
Add 4 and 5
[tex]-2 = - 5a+b[/tex]
[tex]-2 = 7a -b[/tex]
--------------------------
[tex]-2 - 2 = -5a + 7a +b - b[/tex]
[tex]-4 = 2a[/tex]
Divide through by 2
[tex]-2 = a[/tex]
[tex]a = -2[/tex]
a water cooler shaped like a rectangular prism has length of 80 centimeters a width of 40 centimeters and height of 100 centimeters what volume of water is needed to fill the water cooler
[tex]volume = lwh[/tex]
[tex]volume = (80)(40)(100)[/tex]
[tex]volume = 320000 \: {cm}^{3} [/tex]
You need a volume of 320000 cm³ of water to fill the water cooler.
Can Someone Answer this question??
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
460, 451,442
Find the 37th term.
Answer:
37th term = -136
Step-by-step explanation:
Given:
Series;
460, 451 ,442
First term a = 460
Common difference D = 451 - 460 = -9
Find:
37th term
Computation:
37th term = a + 36D
37th term = 460 + 36(-9)
37th term = -136
Answer:
136
Step-by-step explanation:
Arithmetic Sequence.
Common Difference:
451−460=−9
442−451=−9
d=−9
Explicit Formula:
a{n}=a{1}+(n-1)d
a{37}=460+(36)(-9)
a{37}=136
=136
(Got it right on DeltaMath
POSSIBLE POINTS 10
Using the following set of data, find the upper quartile.
17, 29, 32, 9, 30, 14, 8, 39, 11, 32, 23
Answer:
Minimum: 8 Q1: 14 Median: 17.5 Q3: 30 Maximum: 32
Step-by-step explanation:
8, 9, 11, 14, 17, 23, 29,30, 32, 32
PLEASEEE HELP 50 POINTS,
Suppose you were an American soldier in the American Revolution. You are asked to write a short essay about the person who most inspired the Continental army to win the war. You have chosen George Washington. The title of your essay is “How General Washington Inspired the Continental Army to Win the War.”
Your essay should have three paragraphs:
• The first paragraph describes characteristics of General Washington that prepared him for his role as commander of the Continental army.
• The second paragraph supports your choice by citing two events at which Washington provided inspiration.
• The third paragraph identifies how these actions or events led to an American victory.
Make sure to express your ideas clearly. Use evidence from the text!
Answer:
george washington
Step-by-step explanation:
what is 696969 time 1
Anything times 1 = the same number so 696969x1=696969
Answer:
696969
Step-by-step explanation:
Please help me please with math!
Answer: Slope = -32
Explanation:
The given equation is in y = mx+b form
m = -32 is the slope
b = -9/38 is the y intercept
Answer:
slope: -32
Step-by-step explanation:
Use the slope-intercept form to find the slope and y-intercept.
Slope: − 32
y-intercept: ( 0 , − 9/ 38 )
Find the value of x.
Answer:
hi i dont know the ans but it have this app called photomath that will help u
Which operation should you perform first when you simplify the expression below?
85+ (9-25.5) ÷ 3
A: addition
B:subtraction
C:multiplication
D:division
Answer:
A pq eu já não sei mas vou na A! não sei falar inglês, meu irmão leu, mas acho que não leu direito, eu chuto na A
I need help pleasee thank
Answer:
A=51
a=22.2
c=28.6
Step-by-step explanation:
∠A=180-90-39
=51
a/sin51=18/sin39
a=22.2
c/sin90=18/sin39
c=28.6
Answer:
A=51 degrees
a=14.6 units
c=30
Step-by-step explanation:
A=180-90-39=51
a= (a=a; o=18; angle=39)
Tan(39)=a/18
0.8=a/18
14.6=a
c= (h=c; o=18; angle=39)
Sin(39)=18/c
0.6=18/c
0.6c=18
c=30
Plzzzz give me brainliest! B)
The school sold 93% of the 400 tickets to the play. How many tickets were sold?
Please help
Answer:
372.
Step-by-step explanation:
just search up 93% of 400, neither of us are smart enough to figure it out ourselves
Answer: The answer would be 372
que es la radicasion
Answer:
un lugar, típicamente uno que ha estado previamente deshabitado, donde la gente establece una comunidad.
Write an equation in slope-intercept form for the line that has a slope of 12 and passes through the point (3,20).
y=12x-16
that's the answer
Evaluate the function when x=−2, 0, and 5.
g(x)=3x−2
g(−2)=
g(0)=
g(5)=
I'm very confused, please help!
Answer:
Step-by-step explanation:
g(x)=3x−2
g(−2)= 3(-2) - 2 (after substituting -2 for x): g(-2) = -6 - 2 = -8
g(0)= 3(0) - 2 = -2
g(5)= 3(5) - 2 = 13
18:30 as a ratio simplified, please :))
Which THREE statements describe how to find the product of 5×103?
Answer:
multiply 5×1,000 B multiply 5×10 three times and then add the products C move the decimal point in the number five, three place values to the left D move the decimal point in the number five, three place values to the right E move the digit 5, three place values by adding three zeroes to increase its value.
Answer:
Three statements to find 5x103=515
Step-by-step explanation:
5x(100+3)5x((25x4)+3)5x((50x2)+3)solve for variable y answer in simplest radical form
Answer:
option A
Step-by-step explanation:
option A y = 9√3 is the correct answer .
In∆ PQR
cos 30 = y /18
√3/2 = y / 18
y = 9√ 3
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you .
A pancake recipe calls for of a cup of powdered milk and cups of whole wheat flour for each batch of pancakes. If Ruby plans on making 4 batches of pancakes, how many combined cups of powdered milk and whole wheat flour does she need?
Answer:
8
Step-by-step explanation:
if this helped you please vote brainiest.
On sale , the original price of every jacket in a store is reduced by 20% . Later , this sale price is further reduced by another 20% to create a final price . The store could have reduced the original price directly to the final price by what single percent ?
Answer:
40%
Step-by-step explanation:
20% + 20% = 40%
Hope this helps!
0.734862.. irrational or rational
Answer:
Irrational
Step-by-step explanation:
Someone please explain how to get the answers
Answer:
[tex] m\angle A =40\degree [/tex]
[tex] m\angle D =40\degree [/tex]
Step-by-step explanation:
By inscribed angle theorem:
[tex] m\angle A = \frac{1}{2} \times 80\degree [/tex]
[tex] m\angle A =40\degree [/tex]
[tex] m\angle D= \frac{1}{2} \times 80\degree [/tex]
[tex] m\angle D =40\degree [/tex]
hey can anybody solve this
Answer:
34ft.sq
Step-by-step explanation:
Area of the given triangle = 1/2 * base * height
=1/2*17*4
=17*2
=34 ft.sq
Answer:
34 ft²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
Here b = 17 and h = 4 , then
A = [tex]\frac{1}{2}[/tex] × 17 × 4 = [tex]\frac{1}{2}[/tex] × 68 = 34 ft²
hi please help i will mark brain list giving all my points
Answer:
B
Step-by-step explanation:
It looks like addition to me.
Answer:
Its B. Addition Property of Equality
Step-by-step explanation:
Noah works at a museum and monitors a fish tank. The tank currently has 140
gallons of water when Noah leaves to go home for the night. Overnight, the tank
starts to leak and water is draining at a constant rate of 2 gallons per hour. When
Noah returns to work the next day, he finds the tank after it had been leaking for 4
hours. Select all the statements that could represent the amount of water in the
tank when Noah return to work the next day.
a. 140 + -2
b. 140 + (-2)(4)
C. 140 + (2/4)
d. 140 + 8
e. 140 + -8
f. 138
g. 132
Answer:
B, E, G
Step-by-step explanation:
How do you find 15% of 160?
ZA=
Round your answer to the nearest hundredth.
A
?
5
B
3
please help me will mark brainleist (ik i spelled that wrong)
Answer:
its way to blurry nobody can see
Answer:
x power 2 +2x-8 = - 6x power of 3
What is the value of x
Answer:
the answer will be 10 aka number 1
Step-by-step explanation:
If the left side is 18 and the number above it is half that aka 9 then the other side is 10
pls help w this math question
thx !