Answer:
f(-2) = 90
Step-by-step explanation:
Plugging in the value of f(x) into the equation:
f(-2) = 5(-2)3^(-2)
f(-2) = 5(-2)(-9) - evaluate the power first
f(-2) = 90 - multiply from left to right to obtain answer
2
6
+
2
Area
HELP PLEASE
Answer:
X= 40
Step-by-step explanation:
if you compare the shapes, the X square is half of 6. so i added 6 and 3, then 2 and 3, then multiplied it, and the answer is 40.
A tepee is designed to have a diameter of 10 feet and the volume of 419 ft.³ at what height the support poles crossed with some of the tepee correctly?
Answer:
The required height is equal to 5.33 feet.
Step-by-step explanation:
Given that,
Diameter, d = 10 feet
Volume, V = 419 ft.³
We need to find the height the support poles crossed with some of the tepee correctly. Let the height is h.
The tepee is in the form of a cylinder. The volume of a cylinder is given by :
[tex]V=\pi r^2 h\\\\h=\dfrac{V}{\pi r^2}\\\\h=\dfrac{419}{3.14\times 5^2}\\\\h=5.33\ ft[/tex]
So, the required height is equal to 5.33 feet.
please answer this question
Find an angle α that is coterminal with an angle measuring −460∘, where 0∘≤α<360∘. Do not include the degree symbol in your answer. For example, if your answer is 20∘, you would enter 20.
Answer:
The coterminal angle is 260°
Step-by-step explanation:
Suppose that we have an angle A.
All the coterminal angles to A are written as:
B = A + n*360°
Where n is any whole number.
Notice that if n = 0, we get:
B = A + 0*360° = A
So A is coterminal with itself, which is trivial.
Now we want to find a conterminal angle to -460° such that it is in the range:
0° < α < 360°
So we just need to find a value of n such that:
α = -460° + n*360°
is on the given range.
We can assume that n = 2 will work, let's check:
α = -460° + 2*360° = 260°
α = 260°
And this angle is in the given range:
0° < 260° < 360°
what is the standard form of 3+5x-4x^2
and what is the standard form of 8x+x+5+x^3
Answer:
1. -4x^2 + 5x + 3
2. x^3 + 9x + 5
Step-by-step explanation:
hope this helps
Amanda has already run 14 miles on her own, and she expects to run 5 miles during each track practice. How many tracks would it take for Amanda to run 29 miles? heeeeeeeelllllppppp mmmmmeeeee!
Answer:
It will take Amanda 3 track practices to run 29 miles.
Step-by-step explanation:
29-14=15
15/3=5
or
14+5x=29
subtract 14 from both sides
5x=15
divide both sides by 3
x=3
Hope this helps. Brainliest will be appreciated.
PLEASEE HELPPP!!!! Bots will be taken down.
Answer:
um what grade
Step-by-step explanation:
is like 8th grade math or 7th grade math
Answer:
What do we do?
Step-by-step explanation:
I don’t know what we do
Please explain how to do #3
Helpppppppp plssssss
Answer:
16
Step-by-step explanation:
one side is four the other is four 4x4 is 16
Answer:
8
Step-by-step explanation:
Since its 1/2 cm per cube, each side is 4 cubes, 4x1/2 = 2. 2x2x2 = 8
PLEASE HELP!!! 25 POINTS & WILL MARK BRAINLIEST
Answer:
It is answer A without a doubt
Step-by-step explanation:
The equation of two circles are known, circle A’s equation is (x-3)^2+(y+4)^2=9 and circle B’s equation is (x+4)^2+(y+12)^2=8.
What is the radius of circle A and the radius of circle B.
Answer:
Step-by-step explanation:
The circles are written in standard form. The standard form squares the radius on the right hand side.
Circle A
radius = sqrt(9)
radius = 3
Circle B
radius = sqrt(8)
radius = sqrt(2 * 2 * 2)
radius = 2 sqrt(2)
If you shift the linear parent function, f(x) = x, up 6 units, what is the equation of the new function?
A. g(x) = X
B. g(x) = x + 6
C. g(x) = 6x
D. g(x) = x - 6
If it cost 16.50 for 6 shirts how much would it cost for just one shirt?
Answer:
Each shirt would cost $2.75
Step-by-step explanation:
Is (1, 4) a solution to this system of equations? 8x + 3y = 20 x + 4y = 17
Answer:
Yes.
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Systems of EquationsStep-by-step explanation:
Step 1: Define
Identify
8x + 3y = 20
x + 4y = 17
(1, 4)
Step 2: Check
Plug and verify the coordinates is a solution.
Substitute in point [1st Equation]: 8(1) + 3(4) = 20Multiply: 8 + 12 = 20Add: 20 = 20 [tex]\checkmark[/tex]Substitute in point [2nd Equation]: 1 + 4(4) = 17Multiply: 1 + 16 = 17Add: 17 = 17 [tex]\checkmark[/tex]∴ Since both equations work out, (1, 4) is a solution to the systems of equations.
Which function has real zeros at x = 3 and x =
7
Answer:
x^2-10x+21
Step-by-step explanation:
(x-3)(x-7)=
x^2-7x-3x-21=
x^2+10x+21
what is the value of b
Answer:
61 degrees
Step-by-step explanation:
What is the surface area of the figure below? 6ft 3ft 3ft
A. 12ft
B.36ft
C.54ft
D.90ft
Answer:
D 90 ft
Step-by-step explanation:
3×3×2+3×6×4=18+72=90
Find the mode median, mean, and range for each data set.
PLS HELP!!!
Answer:
https://www.calculator.net/mean-median-mode-range-calculator.html
Step-by-step explanation:
use this website it helps so much
Answer: If I put a line over the number that means continued Ex: (23.333333..., 3.098888 or 56.77777...)
11. Mean 1 + 2 + 3+ 3+ 4+ 4+ 4+ 5+ 5 / 9 = 31/9 =26.5 .Median 4 Mode 4 Range 5 - 1 = 4. _
12. Mean 6.5 + 7.5 + 7.5 + 7.5+ 8 + 8.5 + 8.5 + 8.5 + 8.5 + 8.5 +9 = 88.5/11 =8.045
median 8.5 mode 8.5 range 9 - 6.5= 2.5
13. Mean 5.75 + 7.25 + 7.75 + 8 = 28.75/4 = 7.1875. median 7.25 + 7.75 = 15/2 = 7.5 range 8 - 5.75 = 2.25
14. Mean 5 + 5 + 6 + 6 + 6 + 7 + 7 + 7 + 7+ 7 = 63/10 = 6.3 median 6 + 7 = 13/2 = 6.5 . mode = 7 range 7 - 5 = 2. _
15. Mean 5 + 5 + 5 + 7+ 7+ 7+ 7 + 7+ 7+ 7/9 = 62/9 = 57.5 median 2 mode 2 range 7 - 5 = 2.
16. 1 + 2 + 2 + 2 + 2 + 2 + 3 + 5 + 5 + 5= 29/10 = 2.9 Median 2 mode 2 range 5 - 1 = 4.
17. 1 +2 + 3 + 5 + 6 + 6+ 6 + 8 + 13 + 19 = 69/10 = 6.9 median 6 mode 6 range 19 - 1 = 18. __
18. 1 + 2 + 2 + 2 + 2+ 2 + 2 + 2 + 4 + 4 + 5 = 27/11 = 2.45 median 2 mode 2 range 4.
Step-by-step explanation:
Mean
Add up all the numbers, then divide by how many numbers there are. Ex: 2, 3, 4. 2 + 3 + 4 = 9. Since there is 3 numbers we divide. 9 divided by 3 equals 3 so 3 is your mean.
Median
Arrange your numbers from least to greatest.
Count how your numbers.
If you have a set of odd numbers, the number in the middle is your median. Ex: 2, 3, 6, 7, 1, . your median is 6.
Mean
If you have a set of even numbers use the 2 numbers in the middle then divide. Ex: 1, 5, 3, 8, 9, 2. The two numbers in the middle are 3 and 8 . 3 plus 8 equals 11. 11 divided by 2 is 5.5. the mean.
Mode
write the numbers from least to greatest. The number that shows the most is your mode. Ex. 4 , 6 ,7 ,3 ,1 3, 3, 3, 2 3, . The number that appears the most is 3. So 3 is the mode. If there is no number that appears more than all the others put NONE or N/A in the blank.
Range
To find the range put the subtract the greatest number and least number. Ex: 2, 4, 7, 1, 8. 1 , 2, 4, 7, 8. 8 mins 1 is 7 so 7 is the range.
the temperature of the first 6 days in march is shown below. if the temperature 23 F is removed from below, how much greater is the range of the original 6 temperatures than the range of the 5 temperatures:
23F 58F 62F 64F 64F 65F
a. 35
b. 42
c. 7
d. 23
Given:
The temperature of the first 6 days in march is:
23F, 58F, 62F, 64F, 64F, 65F
23 F is removed from the data set.
To find:
How much greater is the range of the original 6 temperatures than the range of the 5 temperatures.
Solution:
Range of a data set is:
Range = Maximum value - Minimum value
The given data set is:
23 F, 58 F, 62 F, 64 F, 64 F, 65 F
The range of given data set is:
Range = 65 - 23
= 42
If the temperature 23 F is removed from the data set, then the new data set is:
58 F, 62 F, 64 F, 64 F, 65 F
The range of this new data set is:
Range = 65 - 58
= 7
Now, the difference between original range and new range is:
[tex]42-7=35[/tex]
The original range is 35 more than the new range. Therefore, the correct option is a.
a bike tire is being measured for new tubing the circumference of the tire is 26p find the radius of the tire
pretty sure its 13p
if i'm wrong tell me
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answer:
D. All of the above
Step-by-step explanation:
All of those would reach higher than 300 when you go 4 to the right.
I NEED HELP ANSWER IF YOU KNOW WHAT TO DO??
I’ll give Brainlist!! :))
Answer:
see below
Step-by-step explanation:
CD = 90 - 53 = 37°
AB = 180 - 79 - 53 = 48°
ED = 180 - 37 = 143°
EB = 180 - 53= 127°
BDE = 53 + 37 + 143 = 233°
DEC = 360 - 37 = 323°°
please help meee!!!lol
Answer:
X represents the number of product so 3 cause you have 2 pastas and 1 cheese. The length represents the total cost. I think 3 would represent cost? I'm not totally sure on that one. Hope this helps!
Step-by-step explanation:
help me please. i need this now
The population P of bacteria in a culture after t minutes is given by the equation p=p0 (1.14)^t where P0 is the initail population. If the number of the bacteria starts at 400, how long will it take for he population to incfrease to 2000
Answer:
The time taken is 4.79 minutes.
Step-by-step explanation:
[tex]P = Po(1.4)^{t}[/tex]
initial Population, Po = 400
Final population, P = 2000
Let the time is t.
[tex]2000 = 400(1.4)^{t} \\5 = (1.4)^t\\log 5 = t log 1.4\\0.6989 = 0.146 t \\t = 4.79 minutes[/tex]
What do you used to find perimeter
Answer:
Perimeter = 2 ( l + w )
if u r given for rectangle thats the formula
Step-by-step explanation:
To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width).
There are 22 students in Bella’s class. The class is voting for 2 students to represent them on a committee. What is the probability Bella’s two choices will be picked? (Assume the vote is random.)
Answer:
well wouldnt there be a 50/50 chance her choice will be picked since there are only 2 im sorry if im wrong
Step-by-step explanation:
Probabilities are used to determine the chances of an event.
The probability that Bella’s two choices will be picked is 1/231
The parameters are given as:
[tex]\mathbf{n = 22}[/tex] -- number of students
[tex]\mathbf{r = 2}[/tex] --- Bella's selection.
Each student in the class have an equal chance.
So, the probability of selecting a student is:
[tex]\mathbf{Pr = \frac 1{22}}[/tex]
The probability that Bella's two choices are picked is:
[tex]\mathbf{Pr = P(First\ and\ Second)\ or\ P(Second\ and\ First)}[/tex]
So, we have:
[tex]\mathbf{Pr = \frac{1}{22} \times \frac{1}{22 - 1} + \frac{1}{22} \times \frac{1}{22 -1}}[/tex]
NB: 1 is subtracted, because no students can be selected more than once
So, we have:
[tex]\mathbf{Pr = \frac{1}{22} \times \frac{1}{21} + \frac{1}{22} \times \frac{1}{21}}[/tex]
[tex]\mathbf{Pr = \frac{1}{462} + \frac{1}{462}}[/tex]
Take LCM
[tex]\mathbf{Pr = \frac{1 +1}{462}}[/tex]
[tex]\mathbf{Pr = \frac{2}{462}}[/tex]
Simplify
[tex]\mathbf{Pr = \frac{1}{231}}[/tex]
Hence, the probability that Bella’s two choices will be picked is 1/231
Read more about probabilities at:
https://brainly.com/question/11234923
Need help fast will give brainliest! Please help me solves this equation!
Answer:
x = 15, y = 75
Step-by-step explanation:
hope it helps
There are 2 yellow, 3 green, 1 orange, and 4 red cards in a stack of cards turned facedown. Once a card is selected, it is not replaced.
Answer:
1/45
Step-by-step explanation:
Here is the complete question
here are 2 yellow, 3 green, 1 orange, and 4 red cards in a stack of cards turned facedown. Once a card is selected, it is not replaced. Find each probability.
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one ids attached to the event. If it doesn't a value of zero is attached to the event.
1. P(two yellow cards)
there are a total of 10 cards and 2 yellows cards. If 1 yellow card is picked, it would remain 1 yellow card and 9 cards
P(two yellow cards) = 2/10 x 1/9 = 1/45
11. Max is designing a hot tub for a local spa.
He wants the hot tub to have a diameter of 89 inches, What is
the approximate area required for the installation of the hot tub?
(Use 3.14 for pi.)
NO PDF PLZ
Answer:
Area required for circular hot tube = 6,218 inch² (Approx.)
Step-by-step explanation:
Given:
Diameter of circular hot tube = 89 inches
Value of π = 3.14
Find:
Area required for circular hot tube
Computation:
Radius of hot tube = Diameter / 2
Radius of hot tube = 89 / 2 inches
Area required for circular hot tube = Area of circle
Area of circle = πr²
Area required for circular hot tube = πr²
Area required for circular hot tube = (3.14)(89/2)²
Area required for circular hot tube = (3.14)(7921 / 4)
Area required for circular hot tube = (3.14)(1,980.25)
Area required for circular hot tube = 6,217.985
Area required for circular hot tube = 6,218 inch² (Approx.)