Answer:
4
Step-by-step explanation:
area of circle= pi*r^2
so lets make an equation50.24=3.14*x^2
first divide50.24/3.14=16
50.24/3.14= x^2
now simplify16=x^2
4=x
Please answer this (and explain if you can) it will be really helpful!!
Dilate the triangle ABC by the given scale factor (3), with the origin as the center of dilation.
Answer: A'(3,0), B'(3,6), C'(9, 3)
Step-by-step explanation:
A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18pi meters.
What is the area A of the cross section of the column?
Give your answer in terms of pi.
A = m spuared
Answer:
81π m²Step-by-step explanation:
Circumference formula: C = 2πr
Compare with given value and determine the radius:
2πr = 18πr = 18π/2πr = 9 mFind the area of the cross-section.
Area formula: A = πr²
Area: A = 9²*π = 81π m²
Find radius
C/2π18π/2π9mSo.area
πr²9²π81πm²Find a common denominator and then subtract and simplify your answer.
11/12-3/4
a: 1/7
b: 1/5
c: 1/6
Answer: c. 1/6
Step-by-step explanation:
The least common demoninator would be 12, as 12 is a multiple of 4.
We can multiply the fraction 3/4 by (3/3)
3/4 = 3/4*(3/3)
= (3*3)/3*4)
= 9/12
We can plug in the value of 9/12 in as 3/4 back into the expression:
= 11/12 - 9/12
We can combine the numerators since there is a common denominator:
= (11-9)/12
= 2/12
Divide the numerator and denominator of this fraction by 2:
= 1/6
Hello, anybody out there can help me with this please
Answer:
6/7
Step-by-step explanation:
We want the numerical ratio
green apple trees 18
------------------------------ = -------- which reduces to 6/7 (answer)
red apple trees 21
only 15 left just tell me when you cant help no more
The coordinates of the points A and B are ( 0 , -2 ) and ( 3 , 0 ) respectively.
(a) What is the y - intercept of the line AB?
(b) What is the gradient of the line AB?
(c) What is the length of the line AB?
Answer: The y-intercept is -2
The gradient is 2/3
and the length is 13
Step-by-step explanation:
Trains Two trains, Train A and Train B, weigh a total of 281 tons. Train A is heavier than Train B. The difference of their weights is 113 tons. What is the weight of each train? Train A weighs tons.
Answer:
A = 197 tons
B = 84 tons
Step-by-step explanation:
Given Equations: A + B = 281 A - B = 113
A = 113 + B
113 + B + B = 281
2B = 281 - 113
2B = 168
B = 84
A = 113 + 84
A = 197
Out of a sample of 1,450 people, 1,000 said they prefer to drive themselves to work rather than carpool. Construct a 95% confidence interval for the population mean of people who would rather drive themselves than carpool.
CI = (65.84%, 72.09%)
CI = (66.58%, 71.35%)
CI = (65.27%, 72. 13%)
CI = (66.97%, 70.96%)
The required confidence interval for the population mean is; B: CI = (66.58%, 71.35%)
What is the Confidence Interval?We are given;
Sample size; n = 1450
Sample number; x = 1000
Thus,sample proportion is;
p^ = x/n = 1000/1450
p^ = 0.69
We are not given the population proportion but we will assume; p = 0.5
Formula for confidence interval is;
CI = p^ ± z√(p(1 - p)/n)
Where z for CL of 95% is; z = 1.96
Thus;
CI = 0.69 ± 1.96√(0.5(1 - 0.5)/1450)
CI = 0.69 ± 0.026
CI = (66.58%, 71.35%)
Read more about Confidence intervals at; https://brainly.com/question/26658887
The process of mitosis in a paragraph FOR SCIENCE
Answer:
Mitosis means threads, and it refers to chromosomes while the cell starts to divide. Mitosis is when a eukaryotic cell's nucleus splits.
by what percent will a fraction increase if its numorator is increased by 60% and ist denominator decreased by 20%
Answer:
100%
Step-by-step explanation:
Assume the fraction is X/Y.
Increase the numerator by 60%: 1.6X
Decrease the denominator by 20%: 0.8Y
New value: 1.6X/0.8Y
That is equal to 2(X/Y)
The fraction increases by 100% [X/Y to s(X/Y)]
Fully describe the association that would exist between variables with the given correlation coefficient. (a) r=0.6578 (b) r= 0.1648 (c) r = -0.9875
Answer:
Step-by-step explanation:
Correlation is a statistical technique that is used to measure and describe a relationship between two variables. Usually the two variables are simply observed, not manipulated. The correlation requires two scores from the same individuals. These scores are normally identified as X and Y.
A circle is drawn on the coordinate plane. It
has a center at (2, 1) and passes through the
point (2, 5). What is the approximate
circumference of the circle?
Step-by-step explanation:
please mark me as brainlist please
Answer:
Using Pythagorean theorem we can find the radius which is the distance between the center and any point along the circle:
r=((5-1)^2+(2-2)^2)^(1/2)
r=(4^2-0^2)^(1/2)
r=4 units.
Circumference=2pr so our circumference is 8p units^2
so about 25.13 u^2
A surveyor asked 250 residents of a town with a population of 15,000 on whether they fish in any of the town's lakes. 95 people answered "yes" to the question. How many people would be expected to answer "yes" given the entire population was surveyed?
ANSWER WITH EXPLAINATION // PROOF PLSS
Answer:
5,700 people would be expected to say yes.
Step-by-step explanation:
15,000 divided by 250 gives you 60. You use 60 and multiply it by 95 since out of every 250 people 95 people said yes.
What is the value of c
A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m months and develops the equation mc010-1. Jpg to model the situation. Most recently, the scientist counted 138 plants. Assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants were first introduced? 6. 1 6. 6 7. 2 23. 1.
With no limiting factors to the growth of the plants, the number of months have passed since the plants were first introduced is 23.1.
What is an exponential function?Exponential function is the function in which the function growth or decay with the power of the independent variable. The curve of the exponential function depends on the value of its variable.
A type of plant is introduced into an ecosystem and quickly begins to take over.
A scientist counts the number of plants after m months and develops the equation to model the situation, which is given as,
[tex]p(m)=19.3(1089)^m[/tex]
Most recently, the scientist counted 138 plants.
[tex]138=19.3(1089)^m\\(1089)^m=7.15[/tex]
Taking log both sides of the equation,
[tex]\log(1.089)^m=\log7.15\\m\log(1.089)=\log(7.15)\\m=\dfrac{\log7.15}{\log(1.089)}\\m\approx23.1[/tex]
Thus, with no limiting factors to the growth of the plants, the number of months have passed since the plants were first introduced is 23.1.
Learn more about the exponential function here;
https://brainly.com/question/15602982
Answer:
With no limiting factors to the growth of the plants, the number of months have passed since the plants were first introduced is 23.1.
Step-by-step explanation:
Help me I needs the helps
Answer:
467.4 units^2
Step-by-step explanation:
See attached image.
please answer quickly
Answer:
106
Step-by-step explanation:
The given is a pentagon and the sum of interior angles is = 540
so to find the value of x:
132 + 90 + x + x + x = 540 add like terms
222 + 3x = 540 subtract 222 from both sides
3x = 318 divide both sides by 3
x = 106
HELP ASAP
What is the measure of angle CJO?
27°
63°
82°
117°
Answer:
82⁰
Step-by-step explanation:
hope it helps thank me later broMultiply (polynomials)
I WILL GIVE BRAINLIEST, NEED IT TODAY
Answer:
1. 12x² - 7x - 10
2. 10x² + 31x - 14
3. 3x² - xy - 9x + 4y - 12
4. 16y^4 - 1
5. 24x² - 21x - 3
6. -2m² - 2m + 12
7. 15d² - 31d - 12
8. 12x³ + 5x² - 2x
9. 6t² - 20t - 26
10. 48a² - 12b²
Step-by-step explanation:
1.
[tex](3x)(4x)+(3x)(-5)+(2)(4x)+(2)(-5)[/tex] [tex]12x^2-15x+8x-10[/tex] [tex]12x^2-7x-10[/tex]2.
[tex](5x)(2x)+(-2)(2x)+(5x)(7)+(-2)(7)[/tex] [tex]10x^2-4x+35x-14[/tex] [tex]10x^2+31x-14[/tex]3.
[tex](x)(3x) + (x)(-y) + (x)(3) + (-4)(3x) + (-4)(-y) + (-4)(3)[/tex] [tex]3x^2-xy+3x-12x+4y-12[/tex] [tex]3x^2-xy-9x+4y-12[/tex]4.
[tex]((2y-1)(2y+1))(4y^2)+((2y-1)(2y+1))(1)[/tex] [tex]16y^4-4y^2 + 4y^2 -1[/tex] [tex]16y^4 - 1[/tex]5.
[tex](3x)(8x)+(3x)(1)+(-3)(8x)+(-3)(1)[/tex] [tex]24x^2+3x-24x-3[/tex] [tex]24x^3-21x-3[/tex]6.
[tex](-m)(2m)+(-m)(-4)+(-3)(2m)+(-3)(-4)[/tex] [tex]-2m^2+4m-6m+12[/tex][tex]-2m^2-2m+12[/tex]7.
[tex](5d)(3d)+(5d)(1)+(-12)(3d)+(-12)(1)[/tex] [tex]15d^2 + 5d - 36d -12[/tex] [tex]15d^2-31d -12[/tex]8.
[tex](3x^2)(4x)+(3x^2)(-1)+(2x)(4x)+(2x)(-1)[/tex] [tex]12x^3-3x^2+8x^2-2x[/tex] [tex]12x^3+5x^2-2x[/tex]9.
[tex](3t)(2t)+(3t)(2)+(-13)(2t)+(-13)(2)[/tex] [tex]6t^2 + 6t - 26t -26[/tex] [tex]6t^2-20t-26[/tex]10.
[tex](4a)(12a)+(4a)(6b)+(-2b)(12a)+(-2b)(6b)[/tex] [tex]48a^2+24ab-24ab-12b^2[/tex][tex]48a^2-12b^2[/tex]Have a lovely rest of your day/night, and good luck w/ your assignments! (‾◡◝)
Determine a series of transformations that would map Figure E onto F.
Answer:
a reflection across y = -x
Step-by-step explanation:
When reflecting across y = -x,
(x,y) becomes (-y , -x )
basically switch the x and y, then change to the opposite sign
i do not know this answer. it has to be rotation 270° clockwise around the origin.
Help plss it's due today??...!
Answer:
The answer is 80°
Step-by-step explanation:
Given;We are given a hexagon with 6 anglesTo Find;The value of xHere, we know that the sum of all interior angles of hexagon is equal to 720°
So,
x + x + 140 + 140 + 140 + 140 = 720
2x + 560 = 720
2x + 560 – 560 = 720 – 560
2x = 160
2x/2 = 160/2
x = 80°
Thus, The value of x is 80°
For Verification
x + x + 140 + 140 + 140 + 140 = 720
80 + 80 + 140 + 140 + 140 + 140 = 720
720 = 720
L.H.S = R.H.S
Hence Verified!
-TheUnknownScientist 72
Suppose that F(x)=x^2and g(x) = 4/5x^2
Which statement best compares the
graph of G(x) with the graph of F(x)?
Answer:
A
Step-by-step explanation:
A
help..564 patrons can borrow up to 6 books. If all the patrons are currently holding on to 6 books each, how many books are left in the library?
Answer:
3,384
Step-by-step explanation:
So this is a classic multiplication problem. If each patron has 6 books, and there's 564 patrons, you multiply:
564 x 6 = 3,384
hope this helps:D
6437585839765349 + 52367538546941478 ?
5.880512439 x 10^16
5.880512439 x 10^16Hope this helps!
Answer:
The answer is
→ 5.8805124e+16 or 5.880512439 x 10^16
Step-by-step explanation:
Solution for both: [tex]5.8805124e+16[/tex]
First option: [tex]6437585839765349 + 52367538546941478 = 5.8805124e+16[/tex]
Second option: [tex]5.880512439 * 10^1^6 = 5.8805124e+16[/tex]
Therefore, [tex]5.8805124e+16[/tex] is your answer.
Hope this helped! :^)
⭐Brainliest will be appreciated!⭐
✉️Message me if you have any more questions!✉️
- ✨7272033Alt✨
Submitted on 4/20/2022 at 12:52 PM
(To avoid plagarism, by users whom decide to copy.)
PLS HELP IM GIVING U POINTS
Answer:
80/7, of 11 3/7
Step-by-step explanation:
make 4 into a fraction, 4/1, then make 2 6/7 into an improper fraction, 20/7. For fraction multiplication, multiply the numerators and then multiply the denominators. after doing that you will get 80/7 which in 11 3/7
The figure below is made of 1-inch cubes. Three rows of nine cubes have been removed from the top of a prism.
What is the volume of the figure above?
A.
99 in3
B.
90 in3
C.
108 in3
D.
81 in3
if you answer this I will give you 100pts and brainlylist
Answer:
Its 81 in3
Step-by-step explanation:
(i took the test)
At a restaurant, 600 customers were served during a 10-hour period of time. Which graph has a slope that best represents the number of customers that were served per hour at this restaurant?
The number of customers that were served per hour at this restaurant is 60 customers per hour
What is a linear equation?A linear equation is in the form:
y = mx + b
Where y,x are variables, m is the rate of change and b is the initial value of y.
600 customers were served during a 10-hour period of time. Hence:
slope = 600 customers / 10 hours = 60 customers per hour.
The number of customers that were served per hour at this restaurant is 60 customers per hour
Find out more on linear function at: https://brainly.com/question/15602982
The proportional relationship that represents the situation is:
y = 60x.
The graph is given at the end of the answer.
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
[tex]y = kx[/tex]
In which k is the constant of proportionality.
In this problem, 600 customers were served during a 10-hour period of time, hence:
k = 600/10 = 60.
And the equation is:
[tex]y = 60x, 0 \leq x \leq 10[/tex]
The graph is sketched at the end of this answer.
More can be learned about proportional relationships at https://brainly.com/question/10424180
a couch at the wholesale price is $125. If the markup rate at the furniture store is %40,what is the price of the new couch
Answer: $175
Step-by-step explanation:
1. Original Price = $125, Markup is 40% = .4
2. 125 * .4 = 50
3. 125 + 50 = 175
what is 8 divided by 7.6
Answer:
1.05263
explanation:
8 divided by 7.6
[tex]\hookrightarrow \dfrac{8}{7.6}[/tex]
multiply both by 10
[tex]\hookrightarrow \dfrac{80}{76}[/tex]
final answer
[tex]\hookrightarrow 1.05263[/tex]