Answer:
y = -2*0.5ˣ
Step-by-step explanation:
general formula for exponential function: y = abˣ
for point (0 , -2): -2 = a*b⁰ = a * 1 = a
a = -2
for point (-1 , -4): -4 = (-2) * b⁻¹ b⁻¹ = (-4) / (-2) = 2
b = 1/2
exponential function: y = -2*0.5ˣ
Please help me with this equation
2(3y-x)+6=3(2y+2x)-3
Use the distributive property to write an expression that is equivalent to the expression below. -2 (-6x + 3y - 1)
Answer:
1 2 − 6 + 2
Step-by-step explanation:
Which is a diagonal through the interior of the cube?
If the exponential model f(x)=9(13)x is written with the base e, it will take the form A0ekx. What is A0 and what is k?
9 × 13ˣ = 9 × exp(ln(13ˣ ))
… = 9 × exp(x ln(13))
… = A₀ × exp(kx)
so that
A₀ = 9
k = ln(13)
Multiplying and dividing radical expressions and leaving them in factored form. I am trying to find the best and easy way to get the factored form correctly. This is my problem: 3x+8 over 36-2x / 27x^2+72x over 3x^2-27.
Answer:
[tex]\frac{3x + 8}{36 - 2x} / \frac{27x^2 + 72x}{3x^2 - 27} = \frac{(x - 3)(x+3)}{6x(18 - x)}[/tex]
Step-by-step explanation:
Given
[tex]\frac{3x + 8}{36 - 2x} / \frac{27x^2 + 72x}{3x^2 - 27}[/tex]
Required
Solve
Change / to *
[tex]\frac{3x + 8}{36 - 2x} * \frac{3x^2 - 27}{27x^2 + 72x}[/tex]
Factor out 3
[tex]\frac{3x + 8}{36 - 2x} * \frac{3(x^2 - 9)}{3(9x^2 + 24x)}[/tex]
[tex]\frac{3x + 8}{36 - 2x} * \frac{(x^2 - 9)}{(9x^2 + 24x)}[/tex]
Factorize:
[tex]\frac{3x + 8}{36 - 2x} * \frac{(x^2 - 9)}{3x(3x + 8)}[/tex]
Cancel out 3x + 8
[tex]\frac{1}{36 - 2x} * \frac{(x^2 - 9)}{3x}[/tex]
Factorize:
[tex]\frac{1}{2(18 - x)} * \frac{(x^2 - 9)}{3x}[/tex]
Combine
[tex]\frac{x^2 - 9}{2*3x(18 - x)}[/tex]
[tex]\frac{x^2 - 9}{6x(18 - x)}[/tex]
Express the numerator as a difference of two squares
[tex]\frac{(x - 3)(x+3)}{6x(18 - x)}[/tex]
Hence:
[tex]\frac{3x + 8}{36 - 2x} / \frac{27x^2 + 72x}{3x^2 - 27} = \frac{(x - 3)(x+3)}{6x(18 - x)}[/tex]
can someone please help me i will mark brainliest
What is x equal to in this problem?
Answer:
x = 11?
Step-by-step explanation:
I do not know right now sorry hope someone else helps you!
What is L'L?
O 5 units
07.5 units
O 10 units
O 12.5 units
Answer:
12.5
Step-by-step explanation:
The value of LL' is 5 units.
Option A is the correct answer.
What is translation?It is the movement of the shape in the left, right, up, and down direction.
The translated shape will have the same shape and shape.
There is a positive value when translated to the right and up.
There is a negative value when translated to the left and down.
We have,
ML' = 2.5
Triangle JKL dilated to Triangle J'K'L' with a scale factor of 1/3.
This means,
LL' = (2.5 x 3) - 2.5
LL' = 7.5 - 2.5
LL' = 5
Thus,
LL' is 5 units.
Learn more about translation here:
https://brainly.com/question/12463306
#SPJ2
Can someone help me!
Answer:
it might be positive 9 because -5+14=9
Step-by-step explanation:
Answer:
hi
Step-by-step explanation:
Help this is the question pls help I need your help answer correctly
23 pts
Answer:
[tex]3/8* 16 \\3*2\\6[/tex]
Step-by-step explanation:
Thus the mileage of water for this vehicle is 6 miles per gallon.
Which of the following is an equation of a line that is parallel to one whose equation is y = 5x - 3?
PLEASEEEEEE HELP GUYS!!!!!
Janelle made ordered lists of the heights, in inches, of the students in Ms. Carver’s and Mr. Wright’s homerooms. She found the two lists had the same median value, but the list from Ms. Carver’s class showed greater variability. If the shortest student in Mr. Wright’s homeroom is 48 inches tall and the tallest student is 64 inches tall, what could be the heights of the shortest and tallest students in Ms. Carver’s homeroom?
46 inches and 61 inches
47 inches and 66 inches
52 inches and 63 inches
53 inches and 68 inches
Answer:
47 inches and 66 inches
Step-by-step explanation:
took test
Find the new amount if the original amount is 74 degrees and the percent of decrease is 3%. Round to the nearest tenth. Show all work. answer for a brainlist
pls hurry
Answer:
71.8
Step-by-step explanation:
74*0.97=71.78
Rounds up to 71.8
2 At the hot dog stand it costs $18.39 for five hot dogs and six bags of chips. If it costs $4.63 for
one hot dog and two bags of chips, how much is a hot dog?
Answer:
$2.25
Step-by-step explanation:
You set one of the variables equal to the other variable then plug it in to the other equation and find the value of the other to use to find for that one.
What is the radius of a sphere that has a surface area of 951.1 in2?
A. 6.4 in
B. 7.7 in
C. 9.8 in
D. 8.7 in
Answer:
FORMULA FOR SURFACE AREA OF SPHERE = 4 pi r^2
r = 6 " area = 4 pi X 6 X 6 = 144 pi " squared
r = 12 "
area = 4 X pi X 12 X 12 = 576 pi" squared
ANSWER Area will be 4 times the original
Step-by-step explanation:
Answer:
The answer is D. 8.7
Step-by-step explanation:
A=4πr2
Solving fore
r=1
2A
π=1
2·951.1
π≈8.69978in
PLEASE HELP RAISING THE POINTS TO 20!!
Answer:
There are two possible values for x.
The function value will be zero for the values of x.
A squirrel is trying to prepare for the winter. As it gets closer to winter, he starts to collect a lot of acorns. He collects 6 the first day and doubles the amount he collects each day. What is an equation that represents this situation?
Answer:
6x + 12x + 24x + 48x.....
Step-by-step explanation:
A squirrel Is preparing for winter
It begins to collect acorns
Let x represent the acorns
He collects 6 the first day and doubles the amount he collects each day
The equation can be represented as
6x + 12x + 24x + 48x........
Choose the best decimal to represent 5 3/7
2.3
5.428571
2.3
5.428571
Answer:
5.428571
Step-by-step explanation:
[tex]5\frac{3}{7}[/tex]
take the fraction and divide that:
[tex]\frac{3}{7} =0.428571[/tex]
then just add 5:
5 + 0.428571 = 5.428571
or...
convert the mixed fraction to improper fraction:
[tex]5\frac{3}{7} = \frac{38}{7}[/tex]
divide like normal:
[tex]\frac{38}{7} = 5.428571[/tex]
12
A scientist measured the wavelength of an orange light wave as 0.000000615 meters.
A second scientist measured the wavelength of a green light wave as 5.6 x 10-7 meters.
How much longer, in meters, was the orange light wave than the green light wave?
Answer:
it 5.5⋅10−^8m
Step-by-step explanation:
Unless I'm missing something important here, you can find the difference between the two wavelengths by subtracting one from the other. Since you're interested in finding how much longer the wavelength associated with the orange light is, subtract the wavelength of the green light from the wavelength of the orange light. You know that the two measured wavelengths are 6.15 ⋅ 10 − 7 m → orange light 5.6 ⋅ 10 − 7 m → green light Therefore, the difference between the two wavelengths will be Δ wavelength = 6.15 ⋅ 10 − 7 m − 5.6 ⋅ 10 − 7 m = 5.5 ⋅ 10 − 8 m
plz help me on this its really hard :(
Answer:
x = 11
Step-by-step explanation:
Equation:
(5x+1) + (12x-8) = 180
You are doing this because both sides on a straight line add up to 180 degrees. The two angles would add up to 180 degrees since they are on the one side of the line.
Simplifying:
(5x+12x) + (1-8) = 180
Add your common variables together; keep in mind that variables are placed before numbers.
Adding:
17x-7 = 180
Process:
To do this, you are going to simply do the opposite operation for the number without the variable on both sides of the equal sign.
17x - 7 = 180
+ 7 + 7
------------------
17x = 187
----- ------
17 17
x = 11
You divided by 17 on both sides because you needed to get the x variable by itself. Hope this helped! :)
NEED HELP PLEASE ANSWER FAST AND CORRECT.
Answer:
to prove:
mo=qo (given in the question)
angle m = angle q (given in the question)
angle MOP= angle QON (both the triangles meet at angle O so the angles are equal)
hence they are congruent.
Step-by-step explanation:
hope so its right
mark brainliest
Which triangles are similar to DEF?
A. ADFG
Β. ΔEGF
C. ΔFEG
D. ΔGDF
Answer:
C&B i Think this is it
enjoy dis hehehehehheh OOF
Answer:
The answer is b and c
Step-by-step explanation:
I need help Please and Thank you
Answer:
the median should be 2.5
Answer:
2.5
Step-by-step explanation:
By taking the dots ploted on the graph we can take those as actual numbers and put them on a line.
0, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5
Now you will take off the numbers until you get to the middle number
0, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5
Because the middle two numbers are 2 and 3, you take the mean of the two numbers.
(2 + 3) / 2
= 2.5
Roberto has $200 in spending money. He wants to buy some video games that cost $25.50 each. Write and solve an inequality to find the number of games, g, that Roberto can buy. Enter your answer in the box.
Roberto can buy up to _________ video games.
I need this answer right away, please!!!
Answer:
He can buy up to 7 games
Step-by-step explanation:
200 divided 25.50 is 7.84 so therefore he can only buy 7
Answer:
7
Step-by-step explanation:
since it costs 25.50 dollars for each game say that x is each game and 25.50 times x equals the amount of money he spent on his games.
since he only has 200 dollars the inequality has to be greater than or equal to 25.50x
200>=25.50x
7.843>=x
so he can only buy up to 7 games
lol, I'm just kinda slow.
Answer:
understandable
Step-by-step explanation:
Two angles are same side interior angles between two parallel lines. One angle is 30° more than one half the other angle. What is the measure of the smaller angle?
Answer:
284
Step-by-step explanation:
i need help with this question
Answer:
(C). [tex]\frac{22\pi }{3}[/tex] yd.
Step-by-step explanation:
Hudson went shopping for a new pair of sneakers. The listed price of the pair of sneakers was $29, but the price with tax came to $31.61. Find the percent sales tax.
Answer:
Percent sales tax = 9%
Step-by-step explanation:
Listed price = $29
Price with tax = $31.61
Amount of tax = Price with tax - Listed price
= $31.61 - $29
= $2.61
Find the percent sales tax.
Percent sales tax = $2.61/$29 × 100
= 0.09 × 100
= 9%
Percent sales tax = 9%
Can you help me I will mark you brainiest if you awnser all of them please put work into this