Answer:
y = 19*(8)^x
Step-by-step explanation:
We want to write an equation like:
y = a*b^x
That goes through the points (0, 19) and (3, 9728)
Then, when x = 0, we must have y = 19
Replacing those values in the equation we get:
19 = a*b^0 = a*1 = a
19 = a
Then the equation is:
y = 19*b^x
We also know that when x = 3, y = 9728
If we replace these values in the equation, we get:
9728 = 19*(b)^3
Let's solve this for b.
9728/19 = b^3
512 = b^3
∛512 = b = 8
Then the equation is:
y = 19*(8)^x
Which stem-and-leaf plot represents this data?
80, 81, 91, 92, 66, 55, 54, 30, 55, 79, 78
A scatter plot is shown how many outliners does the graph show
Answer:
True
Step-by-step explanation:
Some of the steps for completing the square to solve
x2 + 5x = 2 are shown.
x2 + 5x = 2
x2 + 5x + (StartFraction 5 Over 2 EndFraction) squared = 2 + (StartFraction 5 Over 2 EndFraction) squared
(x + StartFraction 5 Over 2 EndFraction) squared = StartFraction 33 Over 4 EndFraction
Which are solutions of x2 + 5x = 2?
Given:
The equation is:
[tex]x^2+5x=2[/tex]
To find:
The solution of the given equation by completing the square.
Solution:
We have,
[tex]x^2+5x=2[/tex]
We need to add the square of half of the coefficient of x on both sides.
Adding [tex]\left(\dfrac{5}{2}\right)^2[/tex] on both sides, we get
[tex]x^2+5x+\left(\dfrac{5}{2}\right)^2=2+\left(\dfrac{5}{2}\right)^2[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=2+\dfrac{25}{4}[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{8+25}{4}[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{33}{4}[/tex]
Taking square root on both sides, we get
[tex]x+\dfrac{5}{2}=\pm \sqrt{\dfrac{33}{4}}[/tex]
[tex]x=\pm \dfrac{\sqrt{33}}{2}-\dfrac{5}{2}[/tex]
[tex]x=\dfrac{\pm \sqrt{33}-5}{2}[/tex]
[tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex]
Therefore, the solutions of the given equation are [tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex].
Answer: d and e
Step-by-step explanation:
edge 2021 :)
can two nonparallel lines can have multiple solutions.
1) always
2) sometimes
3) never
Answer:
3) never
Step-by-step explanation:
Because if both lines are the same then they will have infinite solutions in common.
Answer:
3- Never
Step-by-step explanation:
Kyndal wants to buy a lamp that
originally cost $82, but went on sale for
20% off. The store is having an
additional sale that is 40% off the sale
price. What is the price of the lamp?
Answer:
$39.36
Step-by-step explanation:
Since its 20% off that means we still have a remaining 80% so first multiply 0.8 to the 82
82x0.8= 65.6
Since there is a additional 40% off multiply by 0.4 to get the discount amount
65.6x0.4= 26.24
Subtract the discount from the price
65.6-26.24= 39.36
What is the measure of angle L?
NO LINKS FOR FILES
Answer:
87
Step-by-step explanation:
first find x
all triangles = 180°
180=32+2x+x+15
combine like terms
180=47+3x
180-47=133
133=3x
133/3=44.334 or 44 1/3
2(44.334)= 88.66 ooor 87 if you round it
Help, ive been stuck on this for 2 hours
2. Find the area of the shaded region to the nearest tenth.
This looks super complicated, but it can actually be solved with the application of a couple of area equations.
Let's establish one fact before we start this question that may have been the reason why this was so confusing for you. No matter what kind of triangle, the area will always be [tex]\frac{1}{2}[/tex] times the length of the base times height.
Alright, with that established, let's start trying to solve for the area.
In this question, we seem to have a triangle with a circle shape taken out of it. We are told to find the area of the shaded area.
The overall equation would be:
[tex]Area_{triangle}[/tex] - [tex]Area_{circle}[/tex]
This makes sense, right? If we find the area of the triangle and subtract the area of the circle within it, it should give us the total shaded area.
Now, let's begin solving for said shaded area:
[tex]Area_{triangle}[/tex] - [tex]Area_{circle}[/tex]
([tex]\frac{1}{2}[/tex] * base * height) - (π*[tex]r^{2}[/tex])
The given base of the triangle is 40 km, the height 27 km, and the circle's diameter is 12. Therefore:
([tex]\frac{1}{2}[/tex] * 40 * 27) - (π * [tex](\frac{12}{2})^{2}[/tex])
(540) - (π * [tex]6^{2}[/tex])
540 - 36π
Use 3.14 as the value for pi:
540 - 36(3.14)
426.96
Round to the nearest tenth:
427.0
Shaded area = 427 ([tex]km^{2}[/tex])
If you have any questions on how I got to the answer, don't be afraid to ask!
- breezyツ
Write the equation of the polynomial with the given roots in standard form.
x=-4 (multiplicity of 2)
x=2i
Answer:
sorry not sure
Step-by-step explanation:
PLEASE HELP ASAP!
Which of the following equations have a solution that is negative? Select all that apply.
please no file links. thanks!
How to solve for shaded area
Answer:
(a) 12.96 ft²
(b) 21.5 in²
Step-by-step explanation:
(a) For the first diagram
Area of the shaded region (A) = Area of Tripezium- area of circle
A = [1/2(a+b)h]-[πr²]............... Equation 1
Where a and b are the parallel side of the tripezium respectively, h = height of the tripezium, r = radius of the circle.
From the diagram,
Given: a = 15 ft, b = 6 ft, h = 12 ft, r = h/2 = 12/2 = 6 ft.
Constant: π = 3.14
Substitute these values into equation 1
A = [12(15+6)/2]-(3.14×6²)
A = 126-113.04
A = 12.96 ft²
(b) For the second diagram,
Area of the shaded region (A') = Area of square- area of circle
A' = (L²)-(πr²)............. Equation 2
Where L = lenght of one side of the square, r = radius of the circle
From the diagram,
Given: L = 2r = (2×5) = 10 in, r = 5 in
Substitute these values into equation 2
A' = (10²)-(3.14×5²)
A' = 100-78.5
A = 21.5 in²
*what shape is the cross section
(giving brainliest if correct !)
Answer:
Triangle!!
Step-by-step explanation:
If you cut the pyramid in half, it will leave triangles. Hope this helps!
*in the image above x=23 cm. find the surface area of the figure
(help pls)
Answer:
[tex]3174cm^{2}[/tex]
Step-by-step explanation:
Each square has an area of [tex]529cm^{2}[/tex]
So we multiply that by the number of squares which is 6.
Please answer!!!!!!!
Answer:
the correct answer is C
4x=52
52 divided in 4 parts is 13, so each ticket is 13 dollars
Ravi is running against two other candidates for student council president. All of the 750 students in Ravi's school will vote for student council president. How can Ravi generate a representative sample that will help him determine whether he will win the election?
(7th grade 8-1)
Answer:
50 students from each grade
Step-by-step explanation:
If we get the similar amount of people from each and every grade so this would represent the percentage occur from each grade this determine the number of people who vote per grade and represent that how much would the vote for student comes
Also 50 is easily divisible by 750
Therefore the above represent the answer
What is the volume of the prism below?
A prism has a length of 1, height of 1 and three-fourths, and width of 2.
2 and three-fourths units3
3 and one-half units3
5 units3
8 units3
Answer:
b) 3 1/2 units^3
Step-by-step explanation:
Sushil was thinking of a number. Sushil adds 7, then divides by 3 to get an answer of -5. What was the original number?
Answer:
-22
Step-by-step explanation:
Use inverse operations.
So, if Sushil last divided, we would need to multiply.
-5*3 =-15
After multiplying, we should subtract the positive seven from negative fifteen.
-15-7 =-22
I need help anyone can help me? I’ll mark ya braninly
Answer:
You are more likely to grab a red marble. You are less likely to grab a green marble.
Step-by-step explanation:
6/16 is greater than 5/16. The bigger the number, the higher the probability.
Have a great day!
47° X Find the unknown angle measure
Answer:
The angle measure is 43 degrees
Step-by-step explanation:
The right angle adds up to 90 degrees in whole, you already have 47 degrees so you want to subtract 47 from 90, then you will get your answer.
Simplify: LaTeX: (4a + 6b)^2.
Answer:
4 (2a+3b)^2
Step-by-step explanation:
(4a+6b)^2 = (4a+6b) * (4a+6b) = 16a^2 +48ab + 36b^2
take 4 common factor
4 (4a^2 + 12ab + 9b^2) = 4 (2a+3b)^2
what is 5 over 10 as a decimal
Answer:
0.50
Step-by-step explanation:
5/10=1/2
100/2=50
50*1=50
50 equals to 0.50 as a decimal
Which item is NOT printed on the bottom of a check?
a
check number
b
routing number
c
account number
d
date
Answer: d. Date
Step-by-step explanation:
Some of the information printed on the bottom of a check include the check number which is typically a security measure that is used in the identification of payment so as to prevent fraud.
The routing number also informs the bank where the funds for the check can be found.
The account number informs the person that collects the check about the account that the money is coming from.
We should note that the date is at the top of the check and one has to fill it himself or herself before giving the check to the recipient.
A: 27.73cm^3
B: 43.66cm^3
C: 205.202cm^3
Answer:
c
Step-by-step explanation:
Calculate the interest earned on a $4,500
saving account that earns 2.5% simple interest over
3 years
Answer:
I = $337.50
Step-by-step explanation:
I = prt
I = 4500(.025)(3)
I = 337.50
The interest earned is $337.50.
What is Simple Interest?The interest on a loan or principal amount can be easily calculated using simple interest. Simple interest is a notion that is employed across a wide range of industries, including banking, finance, automobiles, and more. When you pay back a loan, the monthly interest is deducted first, and any remaining funds are applied to the principle.
Simple Interest = Principal x Interest Rate x Time/ 100
Given:
Principal= 4500
Rate= 2.5%
Time= 3 years
Using Simple Interest
SI = ( P x R xT)/100
SI = (4500 x 2.5 x 3) /100
SI = 33750/100
SI = $337.50
Hence, the interest earned is $337.50
Learn more about simple interest here:
https://brainly.com/question/25845758
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Help me with this please
Answer:
(-12, -18)
Step-by-step explanation:
https://www.omnicalculator.com/math/endpoint
With the number set: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, what is the probability of choosing an even
number?
A) ≈ 6%
B) ≈46%
C) ≈54%
D) ≈50%
Answer:
b
Step-by-step explanation:
6 of the numbers are even from a total of 13
6/13 is roughly 46%
Answer:
The probability of choosing a number is ≈46%.
Step-by-step explanation:
What is probability?
Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty.
The number set is:
{1,2,3,4,5,6,7,8,9,10,11,12,13}
The even numbers is:
{2,4,6,8,10,12}
Total outcomes = 13
Number of possible outcomes = 6
The probability of the outcome is:
[tex]P(E)=\frac{6}{13} *100\\ =46.153%[/tex]
≈46%
Hence, the answer is option B.
To know more about probability here
https://brainly.com/question/23017717
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A bag contains 4 white balls, 6 yellow balls, and 5 red balls. In how many ways can 6 balls be chosen if there must be 2 balls of each color? Which of the following combination notation will best represent the problem? Help!
Answer:
4C2 * 6C2 * 5C2
Step-by-step explanation:
White balls = 4
Yellow balls = 6
Red balls = 5
In other to select a total of 6 balls, of which there must be 2 balls each of color white, yellow and red :
That means :
2 red balls from 5 red balls = 5C2
2 balls for 6 yellow balls = 6C2
2 balls from 4 white balls = 4C2
To obtain the number of possible combinations, take the product of the three combinations :
4C2 * 6C2 * 5C2
If bag contains 4 white balls, 6 yellow balls, and 5 red balls then 6 balls can be chosen if there must be 2 balls of each color in 900 ways
What are permutation and combination?permutation is way of selecting and arranging things while combination is way of selecting things .
Given that bag contains 4 white balls, 6 yellow balls, and 5 red balls
we have to select 6 balls
it's given that there must be 2 balls of each color
So here's how we can select them
2 white balls ,2 yellow balls and 2 red balls
So we have to select 2 white balls out of 4 white balls ,2 yellow balls out of 6 yellow balls and 2 red balls out of 5 red balls
so number of ways of selecting
[tex]{4 \choose 2} \times {6 \choose 2}\times {5 \choose 2}[/tex]
[tex]=6\times15\times10\\\\=900[/tex]
If bag contains 4 white balls, 6 yellow balls, and 5 red balls then 6 balls can be chosen if there must be 2 balls of each color in 900 ways
To learn more about combination visit : https://brainly.com/question/25821700
Ciara drives an average of 43.6 miles per week
Work out an estimate for the number of miles Ciara drives in a year.
Answer:
About 2288 miles
Step-by-step explanation:
43.6 rounded is 44. There are 52 weeks in a year. Therefore, 44x52 equals about 2288
PLEASE HELPPPPPPPPPPPPPP
Answer:
how can I help u sir...???
Please help I'm in fourth and I do not understand this at all :((
Answer:
Rico Spent $6.50 on each car.
Step-by-step explanation:If you divided 52 by 8 you get 6.5 in money it would be $6.50.
My answer is reasonable because my estimate ÷ 10 = $6.50
Answer:
The answers are: 6.5$ , divided by, and 5$
Step-by-step explanation:
In order to figure out the price of each toy car, we must divide 52/8 (the total price of the toy cars divided by the number of the cars) which equals to 6.5, meaning that each toy car costs 6.5$, since they all have the same price. We know that this is a reasonable price because say we were to estimate, meaning we'd take a guess without doing any calculations. Let's say we paid 50$ in total, which is easily divided by 10, if we were to round up both numbers, we'd get 5$ each. That's close to the true answer, making it reasonable to take such a guess.
Shane made a diagram of his garden. The shaded part is where he plans to plant herbs. What is the area of the part of the garden that will contain herbs?
Answer:
I dont know the W and the L but to find the area of the shaded part. multiply the width of the shaded part and the length of the shaded part and you will get the area
