Answer:
16....................
galaxy a has 8x10 stars. galaxy b has 6x10 stars. choose which galaxy has more stars. then fill in the blank with a number written in standard notation
Answer: 750 times more stars.
Step-by-step explanation:
You already know the answer (Galaxy B is quite obviously larger) but the amount of times larger is dependent on the value you get when you divide;
6 billion by 8 million (6,000,000,000/8,000,000)
...which is 750.
(04.01 MC) A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 10 inches. Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 10) would represent a height of 10 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points) Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points) Part C: If the rate at which the candle burned was 0.75 inches per hour instead of 0.5 inches per hour, would the relation be a function? Explain your answer using input and output values. (3 points)
The ordered pairs, justification of the function with different order pairs is required.
The ordered pairs are [tex](0,10),(1,9.5),(2,9),(3,8.5),(4,8),(5,7.5)[/tex]
All values of [tex]x[/tex] has a unique value in [tex]y[/tex] so, it is a function.
y = Height of candle
x = Number of hours
m = Rate = 0.5 inches per hour
c = y intercept = Initial height = 10 inches
The required function is
[tex]y=-0.5x+10[/tex]
Six ordered pairs would be
[tex]x=0,1,2,3,4,5[/tex]
[tex]y=-0.5\times 0+10=10[/tex]
[tex]y=-0.5\times 1+10=9.5[/tex]
[tex]y=-0.5\times 2+10=9[/tex]
[tex]y=-0.5\times 3+10=8.5[/tex]
[tex]y=-0.5\times 4+10=8[/tex]
[tex]y=-0.5\times 5+10=7.5[/tex]
The ordered pairs are
[tex](0,10),(1,9.5),(2,9),(3,8.5),(4,8),(5,7.5)[/tex]
It can be seen that all values of [tex]x[/tex] has a unique value in [tex]y[/tex] so, it is a function.
If m = 0.75 inches per hour
The function would change to
[tex]y=-0.75x+10[/tex]
Some ordered pairs would be
[tex]y=-0.75\times 0+10[/tex]
[tex]y=-0.75\times 1+10[/tex]
[tex](0,10),(1,9.25)[/tex]
The same is seen in this function, all values of [tex]x[/tex] has a unique value in [tex]y[/tex] so, it is a function.
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please help guys no spam :( The total amount of money (in cents) in x dimes, (x+2) nickels, and 2x quarters. The total amount of money is ____ cents. (Hint: value of a dime is 10 cents, nickel is 5 cents, and a quarter is 25 cents.)
The total amount of money is 65x + 10 cents.
Sum of coinsGiven the following coins value
x dimes, (x+2) nickels, and 2x quarters
If value of a dime is 10 cents, nickel is 5 cents, and a quarter is 25 cent, the the total coin is cent is expressed as 10x + 5(x + 2) + 25(2x)
Total in cents. = 10x + 5(x + 2) + 25(2x)
Total in cents = 10x + 5x + 10 + 50x
Simplify
Total in cents = 65x + 10
Hence the total amount of money is 65x + 10 cents.
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linda started to run on a treadmill after setting its timer for 83 minutes the display says she has finished 74 percent of her run how many minutes have gone by
Step-by-step explanation:
100% = 83 minutes
1% = 100%/100 = 83/100 = 0.83 minutes
74% = 1%×74 = 0.83 × 74 = 61.42 minutes
What is the value of x in the equation? 6(x +1) -5x = 8 + 2(x - 1)
can someone explain for me please
Answer:
x = 0
Step-by-step explanation:
6 ( x + 1 ) - 5x = 8 + 2 ( x - 1 )
6x + 6 - 5x = 8 + 2x - 2
-x = 0
x = 0
Answer:
I believe it is x= 0 but correct me if I am wrong
David wants to start a lawn care business. He offers his clients two different service options: Plan A charges $20 per month plus $5 an hour. Plan B charges $30 per month plus $3 an hour. He used the system of equations below to determine how much money he can make on both plans. y = 5x + 20 y = 3x + 30 If x represents the number of hours he works, and y represents the total money he makes, how many hours would he have to work to make the same amount of money with both plans?
Answer:
1440 hrs
Step-by-step explanation:
5 is the number of hours he works, and 45 is the total money David makes.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that David offers his clients two different service options.
Plan A charges $20 per month plus $5 an hour.
Plan B charges $30 per month plus $3 an hour.
y = 5x + 20 and y = 3x + 30 are the system of equations to determine how much money he can make on both plans.
y = 5x + 20..(1)
y = 3x + 30..(2)
Substitute equation 2 from equation 1.
y-y=5x+20-3x-30
0=2x-10
2x=10
Divide both sides by 2
x=5.
Now substitute x in equation 1.
y=25+20
y=45
Hence, 5 is the number of hours he works, and 45 is the total money David makes.
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It cost $36.75 for three tickets to visit the science center. It cost $51 for 4 tickets to visit the zoo. Which attraction will cost more money for a group of 12 students to visit? How much more?
The graph of y=x³ is transformed as shown in the graph below. Which equation represents the transformed function?
y=x^3-4
y=(x-4)^3
y=(-x-4)^3
y=(-x)^3-4
Answer:4
Step-by-step explanation:
all 4
a boat travelled 36 miles in 2 hours. At this rate how many miles will the boat travel in 1/3 hour
Answer:
6 miles
Step-by-step explanation:
36/2=18 mph
18/3=6 per 1/3 hour
3y-y+5x+3-7x simplified as much as possible
Answer:2y-2x+3
Step-by-step explanation:
Combine like terms:
3y-y+5x+3-7x
2y-2x+3
What linear function models the table of values?
The average woman's height is 65 inches with a standard deviation of 3.5 inches.
a.) Determine the z-score of a woman who is 70 inches tall. Round to the nearest tenth.
b.) Use a z-score table to determine how many women out of 10,000 would be taller than the 70 inch tall woman.
Answer:
Part a:
p(z=1.43) find 1.43 in z table that'll be the answer for part a
What are the characteristics of a graph of an inverse variation equation?
Answer:
the answer the other dude gave is right
Step-by-step explanation:
if the measure of the angle WXZ is equal to the measure of XYZ, which statement si true
Answer:
ray XZ is the angle bisector of angle WXY.
what is the greatest common factor (GCF) of 25 and 23?
Answer:
hi
Step-by-step explanation:
the larger of 2 consecutive integers is 10 more than twice the smaller. Find the integers
PLEASE HELP What is the remaining balance on the card if Raina bought 30 prints
Answer:
23.7
Step-by-step explanation:
B(x) = 25.50 - 0.06x
B(30) = 25.50 - 0.06(30)
B(30) = 25.50 - 1.8
B(30)= 23.7
Hope this help I suck at explaining
A store pays by the ounce to have different types of bracelets made and wants categorize them by price drag each purchase to the category that shows the ratio of dollars
Answer:
include a picture
Answer:
THIS IS THE CORRECT ANSWER FOR IMAGINE MATH BRAINLIEST PLZ
Step-by-step explanation:
yw!
I GIVE BRAINLILSTE ///////////////////////....
[tex] {\bf \red {\huge{answer : }}}[/tex]
The dogs weight increased from 64 pounds to 80 pounds.
80 - 64 = 16
so , the dog's weight increased more 16 pounds.
[tex] \pink {\sf{hence , \frac{16}{80} \times 100 }}[/tex]
[tex] \red{= \frac{16}{8 \cancel{0}} \times 10 \cancel{0 } }[/tex]
[tex]\purple{= \frac{ \cancel{16}}{ \cancel{8 }} \times 10 }[/tex]
[tex]\blue{= \frac{ 2}{ 1} \times 10 }[/tex]
[tex] \green{2 \times 10 = 20\%}[/tex]
Therefore , the dog's weight increased by 20%
The model y=1.8x−76.9 represents the relationship between the temperature (°F) and the number of ice cream cones sold. Using the linear regression model, approximate the number of ice cream cones sold when it is 85°F. Round your answer to the nearest whole number.
When it is 85°F, they will sell approximately _ ice cream cones.
Graph of linear equation will be always straight line.
Number of ice cream cones sold be 76.
The relationship between the temperature (°F) and the number of ice cream cones sold is given by model,
[tex]y=1.8x-76.9[/tex]
Where x represent temperature and y represent number of ice cream cone sold.
When temperature is 85°F , it means that , x = 85°F
So, [tex]y=1.8*85-76.9\\\\y= 76.1[/tex]
Thus, number of ice cream cone sold is to be 76.
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what is quadratic formula?
Answer:
The quadratic formula allows us to solve any quadratic equation that's in the form ax^2 + bx + c = 0.
Step-by-step explanation:
Answer:
Step-by-step explanation:
help was 2+2??
this is the before
Answer:
169
Step-by-step explanation:
(Lots of points)PLEASE HELP ME Due today at 8:59 in Texas
Answer:
6.) So 8 of 24 hours is 1/3. So the percent of his time used was 33.33333 . . % (etc)
7.) The easiest way to figure out a percentage is dividing it. So if it was 30 hit out of 75 people, then divide 30 by 75. So 40% of them got hit.
Hope that helps
Lol can someone help me understand this i’m mad confused and I’m tryna get my grade up
Answer:
y-(-8)=4(x-2)
Step-by-step explanation:
This is point-slope form. Point-slope form is y-y₁=m(x-x₁), this is y minus the change in y equals slope (slope is m) times x minus the change in x. An ordered pair is (x, y). You just plug in the missing values. This will get you y-(-8)=4(x-2). I hope this helps! Also, make sure not to put the parenthesis around -8 in the actual box! They are just there to make for less confusion.
please answer correctly!!
Answer:
Undefined
Step-by-step explanation:
I will give brainliest i will also give a lot of points
Answer:
-12y^10
Step-by-step explanation:
First let's rewrite the equation using the commutative property of multiplication
3 x (-4)y^8y^2
Multiply y^8 by y^2 by adding the exponents
y^8+y^2= y^10
3 x (-4)y^10
Now multiply 3 by -4
3 x -4= -12
Finally put them together
-12 + y^10= -12y^10
Answer:
[tex] - 12 {y}^{10} [/tex]
Step-by-step explanation:
We are to simplify:
[tex](3 {y}^{8} )( - 4 {y}^{2} )[/tex]
3 multiplies -4 to get -12, as shown below
[tex]3 \times - 4 = - 12[/tex]
Now, to multiply the exponents which are 8 and 2, we have to use the exponential rule of multiplication: [tex] {a}^{b} \times {a}^{c} = {a}^{b + c} [/tex]
Therefore:
[tex] {y}^{8} \times {y}^{2} = = > {y}^{8 + 2} = {y}^{10} [/tex]
Now, combine -12 and [tex] {y}^{10} [/tex] to get your final answer.
Final answer [tex] = - 12 {y}^{10} [/tex]
I hope this helpsThe table represents the function f.
What is f3)?
X
f(x)
0
As per the given data the required answer is 9............
A hula hoop has a diameter of 44 inches. What is the circumference of the hula hoop? Use 3.14 for tt
Answer:
i think 126 sorry if im wrong
Step-by-step explanation:
The National Science Institute was conducting research on the speed of Cheetahs. After
concluding their research, they were able to predict the cheetahs speed or distance when given
certain times or miles that the cheetah traveled. Complete the table of values and graph the
data on the coordinate plane.
Time(min) |. Distance(mi)
0. 0
1/2. 2/3
1. ?
? 3
8. ?
Answer the following questions using the information above.
1.) Is the relationship proportional? Why or why not?
2.) What is the unit rate?
The table of values is:
Time(min) | Distance(mi)
0 0
1/2 2/3
1 4/3
9/4 3
8 32/3
1) The relationship between Distance and Time is proportional.
2) The unit rate is 4/3 miles
To complete the table, we need to find the missing values of time and distance.
We use the relation between Distance, speed and time ,to find the missing values, which is given by,
Distance = Speed x Time
Given when time = 1/2 minute, the distance = 2/3 miles
Speed = Distance/Time
= 2/3 x 2/1
= 4/3 mile per minute.
This is the constant speed of the cheetah. We use this constant speed to find the other values to complete the table.
So If we take 'y' as the distance and 'x' as the time, then the relationship between time and distance can be expressed as
y = (4/3)x [since Distance = Speed x Time ].
So this relationship is proportional because there is a constant of proportionality 4/3 in the linear equation above and hence can be graphed as well.
The graph will contain the time values on the x-axis and distance values on the y-axis.
So now we need to find the missing values on the table using the above linear equation.
When time, x = 1 minute, distance, y = (4/3) x 1 = 4/3 miles.
When distance, y = 3 miles, 3 = (4/3)x
⇒ time, x = 3 x (3/4) = 9/4 minutes.
When time, x = 8 minutes, distance, y = (4/3) x 8 = 32/3 miles.
So the table is:
Time(min) | Distance(mi)
0 0
1/2 2/3
1 4/3
9/4 3
8 32/3
The unit rate refers to the y-value when the x-value is unity(1). So the unit rate here is found when time = 1 minute.
From the table, distance when time = 1 minute is 4/3 miles.
Hence, unit rate = 4/3 miles.
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3. Lamar's hybrid car gets 45 miles per gallon. Please list 2 equivalent ratios that
are based on this relationship. Explain why they are equivalent.
Your arrswer
Answer:
im sooo sorry
Step-by-step explanation: