Answers
Answer:
V=828.96cm²
Step-by-step explanation:
V=（4/3）∏r³*（1/2）+（1/3）∏r²h
r=6cm
h²=(2√34)²-6²=4*34-36=100
h=10cm
V=2/3*6³∏+1/3*36*10∏=144∏+120∏=264∏=264*3.14=828.96cm²
Related Questions
Simplify each of the expressions below. Which of the expressions have a value between 20 and 40? Select all that apply.
A)(6 −3)2+(5×3)
B)72 −(1×3)3
C)43 −5×8
D)102 −(5+2)2
Answers
Answer:
d
Step-by-step explanation:
The population of bacteria in a colony is increasing. The number of bacteria at time t
(in hours) is given by
P= 3000 x 1.15t
a)By what percentage is the number of bacteria increasing each hour?
b) What was the size of the population when t = 0?
C)What will be the size of the population after 24 hours?
Give your answer to a sensible degree of accuracy.
Step by step explanation please. <3
Answers
Step-by-step explanation:
a) if the population is 3000 and it is being multiplied 1.15 than it is 15%. I found this by multiplying 1.15 by 100 to make it percent than anything over 100 is an increase.
b)im not so sure on this one but I think if t = 0 than it would be p= 3000 x 1.15 x0 which would equal 0
c) p = 3000x 1.15 x 24 p = 82,800
She calculates two regression models. which is true? the linear model better represents the situation because the amount she owes is decreasing by about the same amount every 6 months. the linear model better represents the situation because according to the exponential model, the repayment amount will never be 0. the exponential model better represents the situation because the amount she owes decreases by about the same amount every 6 months. the exponential model better represents the situation because according to the linear model, the repayment amount will eventually be negative.
Answers
The answer is A.thus, this is a linear model. To check,you can see visually that the points are more fitted to the line than the curve.
What is linear regression?Linear regression is the most basic and commonly used predictive analysis. Regression estimates are used to describe data and to explain the relationship.
The difference between the linear model and the exponential model is the degree of difference of consecutive points. If their difference is constant, then it is more appropriate for the linear model. If their difference is increasing at a very fast rate, then that follows an exponential model. With that being said, let's look at the differences at every 6 month-intervals.
2700-2110 = 590
2110-1500 = 610
1500-870 = 630
870-220 = 650
Their differences are about the same having a mean of 620. Thus, this is a linear model. To check,you can see visually that the points are more fitted to the line than the curve. The answer is A.
To know more about Linear regression follow
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Answer:
A is the correct answer
Step-by-step explanation:
Which graph represents the function
f(x) = (x + 4)(x + 1)(x - 3)
?
Answers
Answer:
Step-by-step explanation:
The graph that represents the function
f(x) = (x + 4)(x + 1)(x - 3)
crosses the x-axis three times: at x = -4, x = -1, and x = 3
because we apply the zero product rule and found the roots -4, -1, and 3
x+ 4= 0 → x = -4
x+1 = 0 → x = -1
x-3 = 0 → x = 3
Someone please help and answer this please
Answers
Answer:
1) surface area = 2 · π · r · (r + h)
2) 8x5x6x14x8.94
3) surface area = 2 · π · r · (r + h)
4) 8x14x6
5) 4x4x8
6) 7x8.95x13
7) 3x4x11x3.61 divide by 2
8) 6x6x6 = 36x6 = 216
9) 3x4x10
Step-by-step explanation:
help me with this question, please
Answers
Answer:
Part 1: [ -4 = -8 ]
Part 2: Inconsistent
Step-by-step explanation:
Part 1
1. Move all terms that don't contain x to the right side:
3x - 6y+6y = -12+6y
= 3x = -12 + 6y
2. Isolate x:
[tex]\frac{3x}{3} = \frac{-12+6y}{3}[/tex]
x = -4 + 2y
3. Substitute the new expression into the original:
-4 + 2y - 2y = -8
4. Simplify:
-4 + 0 = -8
[ -4 = -8 ]
Part 2
The two solutions are not equal in value, so, we can conclude that the system of equations has no solution, or is inconsistent.
hope this helps!
1)
W
K
V
A) 20.8
C) 11
22.2
?
11
U
J
T
B) 16.6
D) 18
Answers
Answer:
1. A commercial air carrier determines that the maximum angle of depression of a plane descending to an airport is 11°. Determine horizontal distances
Step-by-step explanation:
You work as an office administrator and are paid $18.65 per hour and work 80 hours in 2 weeks. How much is your straight time pay?
Answers
To find the straight time pay for two weeks,
we'll multiply the amount per hour to the number of working hours
hence,
Straight time pay ⇢$18.65 x 80Straight time pay⇢$ 1,492___________________________________
The Straight time pay of one week would be ,
⇢40 x $18.65⇢$746___________________________________
Straight time pay of a month would be,
⇢160 x $18.65⇢$2,984___________________________________
Weeks no is not of any use here
Straight time pay:-
18.65×80$1492solve each logarithmic equation. Round your answer to two decimal places.
Teach me this one? I want to work on the next and will submit it once I have it done.
7 log9 (x + 8) = 7
Answers
Answer:
[tex]\sf \boxed{\bold{x=1}}[/tex]
Explanation:
[tex]\rightarrow \sf 7 log_9 (x + 8) = 7[/tex]
divide both sides by 7
[tex]\rightarrow \sf \dfrac{7\log _9\left(x+8\right)}{7}=\dfrac{7}{7}[/tex]
simplify the following
[tex]\sf \rightarrow \log _9\left(x+8\right)=1[/tex]
apply log rules [tex]\underline{The \ rule}: \ \bold{log_{b} (a)= c} \ \ \Longrightarrow \sf a = b^c[/tex]
[tex]\sf \rightarrow x+8 = 9^1[/tex]
simplify
[tex]\sf \rightarrow x+8=9[/tex]
subtract both sides by 8
[tex]\sf \rightarrow x=1[/tex]
[tex]\\ \rm\Rrightarrow 7log_9(x+8)=7[/tex]
[tex]\\ \rm\Rrightarrow log_9(x+8)=1[/tex]
[tex]\\ \rm\Rrightarrow x+8=9^1[/tex]
a^1=a[tex]\\ \rm\Rrightarrow x+8=9[/tex]
[tex]\\ \rm\Rrightarrow x=9-8[/tex]
[tex]\\ \rm\Rrightarrow x=1[/tex]
The three sides of a triangle are (x+5)cm ,(2x+4)cm and (2x-3)cm .
a.find the perimeter of the triangle
b. if x =10, find the perimeter of the traingle.
Answers
Hey ! there
Answer:
a. Perimeter = ( 5x + 6 ) cmb. Perimeter when x is equal to 10 = 56 cmStep-by-step explanation:
In this question we are given with three sides of a triangle that are as follows ,
( x + 5 ) cm ( 2x + 4 ) cm ( 2x - 3 ) cmAnd we are asked to :
a. find perimeter of triangle. b. find perimeter if x is equal to 10 .We know that for finding perimeter of any shape we must have to add all the sides of the shape or ,
[tex] \qquad \: \underline{\boxed{\frak{Perimeter = Sum \: of \: all \: sides}}}[/tex]
Solution : -
( a )
Now adding all the three sides of triangle to find the perimeter .
[tex] \hookrightarrow \quad \: ( x + 5 ) + ( 2 x + 4 ) + ( 2x - 3 ) [/tex]
[tex] \hookrightarrow \quad \: \: x + 5 + 2x + 4 + 2x - 3[/tex]
Combining like terms :
[tex] \hookrightarrow \quad \:x + 2x + 2x + 5 + 4 - 3[/tex]
Now , solving :
[tex] \hookrightarrow \quad \: \red{\underline{ \boxed{ \frak{(5x + 6) \: cm}}}}[/tex]
Therefore , perimeter of triangle is 5x + 6 centimetres .( b )
Now , we are finding perimeter of triangle when value of x is 10 . So substituting value of x in given sides of triangle ,
First Side :
x + 510 + 515 cmSecond Side :
2x + 42 ( 10 ) + 420 + 424 cmThird Side :
2x - 32 ( 10 ) - 320 - 317So , all the sides are 15 cm , 24 cm and 17 cm .
Now , adding all these to find perimeter .
[tex] \hookrightarrow \qquad \: 15 + 24 + 17[/tex]
[tex]\hookrightarrow \qquad \: 39 + 17[/tex]
[tex]\hookrightarrow \qquad \: \red{\underline{\boxed{\frak{56 \: cm}}}}[/tex]
Therefore , perimeter of triangle when value of x is 10 cm is 56 cm .Alternative Solution : -
As above we have find the perimeter of triangle in term of x that is ( 5x + 6 ) cm. So we can put value of x as 10 in this to get perimeter. So ,
5x + 65 ( 10 ) + 650 + 656 cmTherefore, perimeter of triangle is 56 cm .
#Keep LearningTo find the perimeter of a shape, we should add all sides , like so :
x+5+2x+4+2x-3
Combine the x's :
x+2x+2x+5+4-3
x+4x+9-3
5x+6
Perimeter :5x+6 cm
º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º º
b.
Find the perimeter of the triangle if x = 10
Just write 10 instead of x :
5(10)+6
5(10) simplifies to 50 ↓
50+6
56
Perimeter of the triangle when x = 10 : 56 cmhope helpful ~
A bowling ball has a diameter of 8.5 inches. If it is rolled down a 60-foot bowling lane, how many complete revolutions will it make? Round to the nearest tenth.
Worth 25 points!!
Answers
Answer:
27 revolutions
Step-by-step explanation:
Things to remember :
One revolution = distance of circumference coveredcircumference = 2πrdiameter = 2 x radiusSolving
One revolution = 2 x π x d/2 = πdOne revolution = 3.14 x 8.5One revolution = 26.69 inchesNo. of revolutions = Distance / one revolutionNo. of revolutions = 60 x 12 / 26.69No. of revolutions = 720 / 26.69No. of revolutions = 27 revolutionsRearrange 4x+2y=8 to make y the subject.
Answers
Step-by-step explanation:
y=(8-4x)/2
y=4-2x
I hope it helps
Answer:
y = 4 - 2x
Step-by-step explanation:
4x + 2y = 8
Subtract 4x on both sides,
2y = 8 - 4x
Divide 2 on both sides,
y = ( 8 - 4x ) / 2
y = 4 - 2x
help me i need help.
Answers
Answer:
The value of a side = 5
Step-by-step explanation:
By using PGT theoram
H² = P² + B²
=> 13² = a² + 12²
=> 13² - 12² = a²
=> 169 -144 = a²
=> 25 = a²
=> √25 = a
=> 5 = a
Answer:
a = 5
Step-by-step explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + 12² = 13²
a² + 144 = 169 ( subtract 144 from both sides )
a² = 25 ( take square root of both sides )
a = [tex]\sqrt{25}[/tex] = 5
3x−45=−12
What is the value of x?
Answers
Answer:
x=11
Step-by-step explanation:
3x−45=−12
Add 45 to each side
3x−45+45=−12+45
3x = 33
Divide each side by 3
3x/3 = 33/3
x=11
brelynn has a piece of ribbon that is 3/4 yard long. how many 1/12 yard pieces can she cut? help
Answers
The Brelynn can cut 9 pieces from the piece of ribbon that is 3/4 yard long of 1/12 yard.
What is a fraction?Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
Let's assume Brelynn can cut x pieces from the piece of ribbon that is 3/4 yard long.
So from the problem:
[tex]\rm \frac{\frac{3}{4} }{x} = \frac{1}{12}[/tex]
[tex]\rm \dfrac{3}{4} = \dfrac{x}{12}[/tex]
x = 9 pieces
Thus, the Brelynn can cut 9 pieces from the piece of ribbon that is 3/4 yard long of 1/12 yard.
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Its worth 20 points but i need it within 10 minutes or less!
Answers
When p = 12, t = 2, and s = one-sixth, r = 18. if r varies directly with p and inversely with the product of s and t, what is the constant of variation? one-eighth one-half four and one-half 18
Answers
The constant of variation given that r varies directly with p and inversely with the product of s and t is one-half
From the question given above,r ∝ p ∝ 1/st
r ∝ p / st
r = Kp / st
Cross multiply
r × st = Kp
Divide both side by p
K = rst / p => constant of variation
How to determine the constant of variation p = 12t = 2 s = one-sixth = 1/6r = 18Constant of variation (K) =?K = rst / p
K = (18 × 1/6 × 2) / 12
K = 6 / 12
K = 1 / 2 = one-half
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A rectangular table top has length 1. 7 m and width 0. 9 m. A force of 750 N is applied to the whole table top. Calculate the pressure in N/m2 to the nearest integer
Answers
Step-by-step explanation:
pressure = F/A
= 750/ (1.7×9)
= 49 N/m²
Suppose you carry out a significance test of h0: μ = 8 versus ha: μ > 8 based on sample size n = 25 and obtain t = 2. 15. Find the p-value for this test. What conclusion can you draw at the 5% significance level? explain.
a the p-value is 0. 2. We reject h0 at the 5% significance level because the p-value 0. 02 is less than 0. 5.
b the p-value is 0. 2. We fail to reject h0 at the 5% significance level because the p-value 0. 02 is less than 0. 5.
c the p-value is 0. 48. We reject h0 at the 5% significance level because the p-value 0. 48 is greater than 0. 5.
d the p-value is 0. 48. We fail to reject h0 at the 5% significance level because the p-value 0. 48 is greater than 0. 5.
e the p-value is 0. 52. We fail to reject h0 at the 5% significance level because the p-value 0. 52 is greater than 0. 5
Answers
Using a t-distribution calculator and finding the p-value, the correct option regarding the conclusion is given by:
a) the p-value is 0.02. We reject h0 at the 5% significance level because the p-value 0.02 is less than 0.05.
What is the relation between the p-value and the conclusion?It also involves the significance level, as follows.
If the p-value is less than the significance level, we reject the null hypothesis [tex]h_0[/tex].If it is more, we do not reject.In this problem, a t-distribution calculator for a right-tailed with t = 2.15 and 25 - 1 = 24 df is used to find a p-value of 0.02.
It is less than 0.05, hence option a is correct.
More can be learned about p-values at https://brainly.com/question/26454209
What is the result when the number 44
is increased by 75%?
Answers
Answer:
77
Step-by-step explanation:
75% of 44 = 33
33 + 44 = 77
Answer:
77.
Step-by-step explanation:
75% of 44
= 3/4 * 44
= 33
33+44
= 77.
The number of bacteria on your hand increases by 40% every hour. If there were initially 800 bacteria placed on your hand, how much bacteria
will be on your hand after 3 hours?
Answers
Answer:
about 2195 bacteria
Step-by-step explanation:
After one hour: 800 * 1.4 = 1120
After two hours: 1120 * 1.4 = 1568
After three hours: 1568 * 1.4 = 2195.2
Please help i need answer asap
Answers
Answer:
14x+6+(5x+30+=2190
Step-by-step explanation:
Parallelogram Properties - Diagonals
delta math
Answers
Answer:
DE=18
Step-by-step explanation:
The reason is because that parallelogram ABCD has most of the sides equal to each other.
The length of DB = 36 and half of 36/2 gets us DE.
DE=36/2=18
DE=18 also equals to BE=18
Diagonals of a parallelogram bisect each other
So
DE+BE=DBPutting DE=BE
2DE=DBDE=DB/2DE=36/2DE=18Can someone please give me the (Answers) to this? ... please ...
I need help….
Answers
Answer:
see explanation
Step-by-step explanation:
2 chords intersecting inside a circle , then the product of the parts of one chord is equal to the product of the parts of the other chord.
6
BE × ED = AE × CE , that is
10 × 3x = 12(2x + 1) ← distribute parenthesis by 12
30x = 24x + 12 ( subtract 24x from both sides )
6x = 12 ( divide both sides by 6 )
x = 2
then
ED = 3X = 3(2) = 6
7
RJ × JP = SJ × JQ , that is
6 × 3x = 4(4x + 1) ← distribute parenthesis by 4
18x = 16x + 4 ( subtract 16x from both sides )
2x = 4 ( divide both sides by 2 )
x = 2
then
RP = RJ + JP = 6 + 3x = 6 + 3(2) = 6 + 6 = 12
A cylinder with radius 3 feet and height 5 feet is shown.
6
ft
Enter the volume, in cubic feet, of the cylinder. Round your
answer to the nearest hundredth.
Answers
Answer:
The volume of the cylinder is 141.23 cubic feet
Step by step explanation :
Given-
Radius of cylinder = 3 feet Height of cylinder = 5 feetNow, we know that
[tex] \boxed {\mathfrak \red{ volume \: of \: cylinder = \pi {r}^{2} h}}[/tex]where, r is the radius of the cylinder & h is the height of the cylinder.
Now,
Volume of the cylinder = [tex] \frac{22}{7} \times {3}^{2} \times 5[/tex]
[tex] = \frac{22}{7} \times 3 \times 3 \times 5[/tex]
[tex] = \frac{990}{7} [/tex][tex] = 141.428571[/tex] ( approximately )
[tex] = \boxed{ 141.43 \: \mathfrak { {ft}^{3}} }[/tex]
5x+11x using distributive property
Answers
[tex]5x+11x=16x[/tex]
What is Distributive Property?To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Distributive Property:
[tex](5x+10x)+(5x+1x)[/tex]
/ \ / \
[tex](16x)[/tex] [tex](6x)[/tex]
Therfore, by using the distributive property, [tex](5x+10x)+(5x+1x)[/tex], We get [tex]16x[/tex].
Learn more about the Distributive Property here:
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Let x = 0.147 and let y = 0.147
Answers
The value of y will be more as the number is repetitive, and both x and y initial three digits after the decimal are the same.
What is a rational number?A rational number is one that has the form p/q, where p and q are integers and q is greater than zero. Some rational number examples are 1/3, 2/4, 1/5, 9/3, and so on.
The complete question is, Let x = 0.147 and let y = [tex]0.\overline{147}[/tex]. Is x a rational number? Is ya rational number? Which is larger, x or y?
Given the value of x is 0.147. As it can be written in the form of a fraction,
[tex]0.147 = \dfrac{147}{1000}[/tex], we can conclude that x is a rational number.
The value of y = [tex]0.\overline{147}[/tex] can also be written in the form of a fraction,
[tex]0.\overline{147} = \dfrac{147}{999}[/tex], therefore, we can conclude that y is also a rational number.
The value of y will be more as the number is repetitive, and both x and y initial three digits after the decimal are the same.
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The area of a circle is 49 pi cm^2 what is the radius of a circle
Answers
Answer:
The radius is 7 cm
Step-by-step explanation:
We know the area of a circle is given by
A = pi r^2
49 pi = pi r^2
Divide each side by pi
49 = r^2
Take the square root of each side
sqrt(49) = sqrt(r^2)
7 = r
The radius is 7 cm
Answer:
radius = 7 cm
Step-by-step explanation:
the area (A) of a circle is calculated as
A = πr² ( r is the radius )
given A = 49π , then
πr² = 49π ( divide both sides by π )
r² = 49 ( take square root of both sides )
r = [tex]\sqrt{49}[/tex] = 7
solve by completing the square: x^2+18x+45=0
Answers
Answer:
x = -3 , - 15
Step-by-step explanation:
Given:
x² + 18x + 45 = 0
Solve:
[tex]x_{1,\:2}=\frac{-18\pm \sqrt{18^2-4\cdot \:1\cdot \:45}}{2\cdot \:1}[/tex]
Simplify
[tex]-18\pm \sqrt{18^2-4\cdot \:1\cdot \:45=12[/tex]
[tex]x_{1,\:2}=\frac{-18\pm \:12}{2\cdot \:1}[/tex]
Separate the solution
[tex]x_1=\frac{-18+12}{2\cdot \:1},\:x_2=\frac{-18-12}{2\cdot \:1}[/tex]
[tex]x_1=\frac{-18+12}{2\cdot \:1}=-3[/tex]
[tex]x_2=\frac{-18-12}{2\cdot \:1}=-15[/tex]
Thus, the answer are:
[tex]x=-3,\:x=-15[/tex]
Kavinsky
what is the area when the diameter is 94cm
Answers
Answer:
see below
Step-by-step explanation:
Area = pi r^2 r = radius
diamter = 94 then radius = 94/2 = 47 cm
area = pi (47)^2 = 2209 pi or 6939.78 cm^2
Answer:
A ≈ 6,939.8 cm²
Step-by-step explanation:
Given : " the diameter is 94cm "
d = 94
Radius is r = d/2 = 94/2 = 47 cm
Area of a circle is
A= π·r²
A = π·47² ≈ 6,939.8 cm²