Answer: y = 20*4^x
Step-by-step explanation:to find the value of the constants a and b, we just need to use the points given in the equation and solve the system of equations:
point (0,20): x = 0 and y = 20:
20 = a*b^0 = a*1 = a
a = 20
point (2,320): x = 2 and y = 320
320 = 20 * b^2
b^2 = 16
|b| = 4
b = 4 or b = -4
So we have two exponencial equations that pass through these points:
y = 20*4^x and y = 20*(-4)^x
As the questions asks for just one equation, we can answer y = 20*4^xIf you have two points, (x1, y1) and (x2, y2), you can define the exponential ... these points by substituting them in the equation y = abx and solving for a and b. ... In this form, the math looks a little complicated, but it looks less so after you ... Taking 1910 as the starting point, this gives the pair of points (0, 1.75) and (100, 6.87). which well turn out to be y=6(4)^x
The value v of your quarters (in cents) is a function of n, the number of quarters you have.
1.)Draw an input-output diagram to represent this function.
2.) Write an equation that represents this function.
The equation that represents this function is v = 0.25n
Let the quarter of a dollar $0.25 or 25 cents
If the value v of your quarters (in cents) is a function of n, then;
v = 0.25nTo get an input-output diagram to represent this function, w will vary the value of n and get the corresponding value of x;
If n = 1
v = 0.25(1)
v = 0.25
If n= 2
v = 0.25(2)
v = 0.5
If n = 3
v = 0.25(3)
v = 0.75 etc.
The equation that represents this function is v = 0.25n
Learn more on functions here: https://brainly.com/question/20384115
Solving Two Step Linear Equations. SHOW YOUR WORK.
1. 9x - 7 = -7
2. -15 = -4m + 5
3. -2x + 4 = -12
4. x/8 + 4 = 3
5. x/7 + 5 = 12
6. 5 = x/-19 - 2
Answer:
1. x=0
2. m=5
3. x=8
4. x=-8
5. x=49
6. x=-133
Step-by-step explanation:
1. 9x=0
2. -20=-4m, 20=4m
3. 2x=16
4. x/8=-1, x=-1x8
5. x/7=7
6. After simplifying: −1/19(x)=7
Hope this helped, I just simplified all the steps for the step by step explanation. Have a great day and stay safe, happy, and healthy!
Can someone help me please
Answer:
7,-7 or -7,-7
Step-by-step explanation:
7,-7 or -7,-7
Answer:
It is either (7,-7) or (-7,7)
Step-by-step explanation:
Hope this helps!
If 6% of a number is 1.32 what is the number?
6% of 22 is 1.32
i hope this helps (:
Answer:
To find this number, you must know the conversion rate between percentages and decimals. If 100% = 1, then 6% will equal 0.06. The oppisite of multiplication is division, so instead of multiplying the number my 0.06, you have to divide it which gives you 22. And if you multiply that number by 0.06, you get 1.32.
Hope that helped!
ILL GIVE BRAINLIEST
An angle measures 100° less than the measure of its supplementary angle. What is the measure of each angle? _° and _°
Answer:
Step-by-step explanation:
the sum of supplementary angles equal to 180
let x=angle
180-x= the other angle
180-x=x-100
2x=280
x=140
the other angle is 40
Genesis has 2/3 of her birthday cake left and she wants to share it between 3 of her friends. How much of the original cake will each friend receive? Kaycee says 6/9 Tari says 2/9 Janiyah says 3/9 Who is correct?
Answer:
[tex]\frac{2}{9}[/tex] of the original cake each friend will receive, so Tari is right.
Step-by-step explanation:
You know that Genesis has [tex]\frac{2}{3}[/tex] of her birthday cake left and she wants to share it between 3 of her friends.
To determine the amount of original cake that each friend will receive is determined by dividing the [tex]\frac{2}{3}[/tex] of the cake into 3 pieces, which is the number of friends.
[tex]\frac{2}{3}[/tex] ÷3
To divide fractions by natural numbers, the whole is considered as a fraction (that is, over the denominator 1). Then you invert this the second fraction and multiply the fractions. For this, you multiply the numerators of the fractions on one side and multiply the denominators of the fractions on the other. If necessary, you simplify the resulting fraction.
In summary, to divide a fraction by a whole number, all you have to do is convert the whole number to a fraction, find the reciprocal of that fraction, and multiply the result by the first fraction.
In this case:
[tex]\frac{2}{3}[/tex] ÷3= [tex]\frac{2}{3} *\frac{1}{3}=\frac{2*1}{3*3} =\frac{2}{9}[/tex]
[tex]\frac{2}{9}[/tex] of the original cake each friend will receive, so Tari is right.
Find 20% 0f 80.
using double number line
Answer:
100% - 80
---------------------
20% - x
[tex]100x=80*20\\100x=1600\\x=\frac{1600}{100}\\x=16[/tex]
Find the other endpoint of the line segment with the given endpoint and midpoint.
2) Endpoint: (-6, 4), midpoint: (-4,8)
Answer:
(-2,12)
Step-by-step explanation:
Answer:
Office Depot
Step-by-step explanation:
Giving 20 Pts Pls Help ASAP!
Answer: base is 12
Step-by-step explanation:
Is this right???
I give Brainliest !
Answer:
It is right
Step-by-step explanation:
good job whatever your name is! you are very smart
Dexter has four different coins in his pocket. He has 1 quarter 1 nickel 1 dime and 1 penny he randomly selects a coin from his pocket, replaces it, and selects another coin. What is the probability that both coins are dimes
What is the equation of the line that is parallel to the
given line and passes through the point (12, -2)?
Answer:
';
lk;j
Step-by-step explanation:
uhh
The wildflowers began blooming by my house at the beginning of March. The first week there were 72 blooms. After week two, there were 144 flowers in bloom. If the flowers continue to bloom at the same rate each week, how many flowers will there be after 7 weeks?
Answer:
answer: 504 blooms <3
Step-by-step explanation:
if you add 72 and 72 then you get 144 so that means 72 blooms each week so if you multiply 72 x 7 you get 504!
Can someone please help I don’t understand!!!
I don't get it, the concept is to make a proof, but I'm so confused!!!!
Answer:
Try Finding What A And B Is...
Step-by-step explanation:
What is the answer?? Please
Answer:
tje second option (3,6) and (5,6)
The second option is correct because you are subtracting 2 from both sides of the graphing system.
A cereal factory purchases chopped
almonds in bags weighing 5 pounds
cach. A factory machine adds
pound of the chopped almonds to
each box of Almond Crunch cereal.
If the factory plans to produce 1,200
boxes of Almond Crunch cereal, how
many bags of chopped almonds does
the factory need to purchase?
Answer:
need poi
Step-by-step explanation:
Answer:
1,200 /5
Step-by-step explanation:
What is the name of this type of graph?
A bag has 7 red marbles 8 blue marbles 5 purple marbles . Racheal draws a marble from the bag without looking
Answer:
Rachel most likely drew a red or blue marble.
8/20 chance of drawing a blue marble.
7/20 chance of drawing a red marble.
5/20 chance if drawing a purple marble.
Answer:
40
Step-by-step explanation:
Marley collects golf balls. His neighbor Tucker collects 3 more than twice as many golf balls as Marley.
Answer:
6
Step-by-step explanation:
Solve the inequality 16
Answer:
I thought I knew how to do this but ig I forgot ill be back in a little with the anwser.
Step-by-step explanation:
4(2a + 2) = 8(2 - 3a) whats A? please help me!!!!
Answer:
a = [tex]\frac{3}{8}[/tex]
Step-by-step explanation:
4(2a + 2) = 8(2 - 3a)
Distribute.
8a + 4 = 16 - 24a
Add 24a to each side.
32a + 4 = 16
Subtract 4 from each side.
32a = 12
Divide 32 from each side.
a = [tex]\frac{3}{8}[/tex]
Mr. Parker wants to rent a cargo van for a day. It will cost a one time daily fee of $50 plus $0.35 per mile driven. Part A was 50m+0.35 now for Part B Evaluate the expression to find out how much Mr. Parker will pay if he drives 80 miles.
Answer:
78
Step-by-step explanation:
This year is snowed on five of the 12 Days of Christmas! The snowfall amounts were 2
inches, 5 inches, 3 inches, 1 foot and 9 inches. What was the mean amount of snow for
the 12 days? Round your answer to the nearest
Answer:
Itz 35 i tink
Step-by-step explanation:
umm i god at mafh
At a sale, dresses were sold for $22 each. This price was 55% of a dress original price. How much did a dress originally cost?
Answer:
40
Step-by-step explanation:
Divide: 55/22 = 0.4
Multiply: 0.4 * 100 = 40.
What is SSS, SAS, AAS, ASA
Answer:
Side side side, Side Angle Side, Angle Angle SIde, Angle Side Angle
Step-by-step explanation:
Find x.
11
13
13'
21'
If 9x - 11= 12, what is the value of 6x ?
Answer:
15.333...
Step-by-step explanation:
9x-11=12
9x-11(+11)=12(+11)
9x=23
23/9x= 2.555...
2.555(6) = 15.333...
Consider the enlargement of the pentagon. A small pentagon has a bottom side length of x centimeters and left side length of 7 centimeters. A larger pentagon has a bottom side length of 7 centimeters and left side length of 15 centimeters. Not drawn to scale What is the value of x, rounded to the nearest tenth? 2.1 centimeters 3.3 centimeters 7.0 centimeters 15.0 centimeters
Answer:
[tex]x = 3.3cm[/tex]
Step-by-step explanation:
Given
Shape: Pentagon
Small
[tex]Bottom = x[/tex]
[tex]Left = 7cm[/tex]
Big
[tex]Bottom = 7cm[/tex]
[tex]Left = 15cm[/tex]
Required
Find x
From the question, we understand that the big pentagon is a dilation of the small pentagon.
What this means is that; both pentagons will have the same equivalent ratio.
The equivalent ratio, in this case is calculated using
[tex]Ratio = \frac{Bottom}{Left}[/tex]
For the small pentagon:
[tex]Ratio = \frac{x}{7cm}[/tex]
For the big pentagon:
[tex]Ratio = \frac{7cm}{15cm}[/tex]
Equate both ratios:
[tex]\frac{x}{7cm} = \frac{7cm}{15cm}[/tex]
[tex]\frac{x}{7cm} = \frac{7}{15}[/tex]
Cross multiply
[tex]15 * x = 7cm * 7[/tex]
[tex]15 * x = 49cm[/tex]
Make x the subject
[tex]x = \frac{49cm}{15}[/tex]
[tex]x = 3.267cm[/tex]
[tex]x = 3.3cm[/tex] --- approximated
Answer:
The answer should be 3.3
Step-by-step explanation:
I'm taking the test right now.
Simplify
Topic : Indices
Answer:
[tex] {m}^{2} [/tex]
Step-by-step explanation:
[tex] \frac{ \sqrt{ {m}^{3} } \times {m}^{ \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ { {m}^{ \frac{3}{2} } } \times {m}^{ \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{3}{2} + \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{3}{2} + \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{9 + 4}{2 \times 3} }}{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{13}{6} }}{ {m}^{ \frac{1}{6} } } \\ \\ = {m}^{ \frac{13}{6} - \frac{1}{6} } \\ \\ = {m}^{ \frac{12}{6} } \\ \\ = {m}^{2} [/tex]