Answer:
Step-by-step explanation:
Formula for volume of a circle: V=πr²
If you multiply the circle by height, it becomes a cylinder.
Formula for volume of a cylinder: V=πr²h
Plug in the numbers and get r by itself:
471 = πr²(6)
Divide both sides by 6:
78.5 = πr²
Divide both sides by π:
25 = r²
Square root both sides:
[tex]\sqrt{25}[/tex] = [tex]\sqrt{r} \\[/tex]²
5 = r
Radius is 5 cm
True or false...
When using the substitution method, one of the equations must say "x=" or "y=".
Answer:
true
Step-by-step explanation:
DUE ASAP PLZ HELP (brainliest if you get it right)
Part A
PERSEVERE Mei got scores of 76, 80, and 78 on her last three history exams. Write an inequality to determine the score, x, she needs on the next exam so that her average is at least 82.
Part B
Fill in the blanks to complete the sentence.
Solve the inequality.
Mei needs a score of at least ____ on the next exam.
here's the right answer!
A) 76 + 80 + 78 + x = 82 times 4
234 + x = 328
x = 94
B) Mei needs a score of at least 94 on the next exam.
hope you have a good day
Help me please
Please help
Answer:
5ft
Step-by-step explanation:
15÷3=5
Joanna plans to completely cover a large soup can, including the top and bottom, with black paper. The diameter of the can is 6 in. and the height is 5 in. Which is a reasonable estimate for the number of square inches of paper that Joanna will need to cover the can? Select one: O 151 square inches
O 141 square inches
O 101 square inches
O 1,319 square inches
Answer:
141 square incges
Step-by-step explanation:
Answer:
The answer is 141 sq inch.
Am smort :D
URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!
Answer: 6.32 (rounded)
Step-by-step explanation:
You need to use the pythagorean theorem. 2^2+6^2=c^2.
4+36=40
square root of 40 is 6.324 when rounded
round 2.85 to the nearest hunderdth
Tyler orders a meal that costs $15.
A. if the tax rate is 6.6% how much will the sales tax in be on Tyler's meal?
B. Tyler also wants to leave a 20% tip for the server. How much do you think he should pay in all explain your reasoning.
Answer:
A) 99 cents
B) 3 dollars
Step-by-step explanation:
15*0.066=$0.99
15*0.2=$3
(I didn't use post-tax total because most people tip on the pre-tax subtotal, since that is the service charge and they're tipping the service, not the tax).
subtract 86.51 and 4.1
I need help with this question
What could you do to the equation 100x + 300 = 500 to change it into x + 3 = 5?
Answer:
2+3=5
Step-by-step explanation:
100x + 300 = 500
100x = 500 - 300
100× = 200
100x/100 = 200/100
therefore ^x = 2
x + 3 = 5
2 + 3 = 5
The equation 100x+300=500 is equal to the equation x+3=5.
Given that,
The equation is 100x+300=500
We have to get the equation x+3=5 from the given equation.
What is the equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. In any mathematical equation, we have LHS = RHS (left hand side equals right hand side).
We can solve in 2 methods.
1st method,
Taking the equation
100x+300=500
Divide the equation by 100
100x/100+300/100=500/100
We get
x+3=5
2nd method,
Taking the equation
100x+300=500
Taking 300 to right side
100x=500-300
Subtracting the 500 and 300
100x=200
Taking 100 to right side
x=200/100
Dividing the 200 by 100
x=2
Now,
x+3=5
Taking x to right side
x=5-3
Subtracting 5 and 3
x=2
Therefore, the equation 100x+300=500 is equal to the equation x+3=5.
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Annual sales for a company are $155,000 and increases at a rate if 8% per year for 9 years
The value of annual sales in 9 years is $309,845.72.
What is the value of annual sales in 9 years?In order to determine the annual sales of the company in 9 years, the formula to be used is:
FV = P (1 + r)^n
Where:
FV = Future value P = Present value R = interest rate N = number of years$155,000 x (1.08)^9 = $309,845.72
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12 NEED HELP ASAP WILL GIVE BRAINLY
Answer:
x = 4
8(4) - 2 = 30
15(4) = 60
All triangles equal 180 degrees and there is already a right angle. 60 plus 0 is 90, and 90 plus 90 (or 90 times 2) is 180
60 + 30 = 90
90 + 90 = 180
Step-by-step explanation:
Select the three expressions that are equivalent to
-2(4 - 3x) + (5x - 2).
A. 2x - 10
B. 11x - 10
C.-8 + 11x - 2
D. -8 - 11x - 2
E. -8 + 6x + 5x - 2
F. -8 - 3x + 5x - 2
What mathematical process did you use to
simplifying the expression above?
Answer:
B
Step-by-step explanation:
-2(4 - 3x) + (5x - 2)=
-8+6x+5x-2=11x-10
when there is a number in front of () you multiple every number that is inside the ()
Triangle P N M is shown. The length of P N is 7, the length of N M is 8, and the length of M P is 11.
Law of cosines: a2 = b2 + c2 – 2bccos(A)
Which equation correctly applies the law of cosines to solve for an unknown angle measure?
72 = 82 + 112 – 2(8)(11)cos(N)
82 = 72 + 112 – 2(7)(11)cos(M)
72 = 82 + 112 – 2(8)(11)cos(P)
82 = 72 + 112 – 2(7)(11)cos(P)
Answer:
8^2 = 7^2 + 11^2 – 2(7)(11)cos(P)
D.
Step-by-step explanation:
Edge 2021
The equation correctly applies the law of cosines to solve for an unknown angle measure is equation D.
What is a Triangle?A triangle is a polygon with three sides, three vertices, and three angles.
The length of P N is 7,
The length of N M is 8, and
The length of M P is 11.
The law of cosines is used to determine the missing sides and angles if two sides and an angle are given or three sides are given respectively.
The equation that correctly applies should have the two sides and the cosine of the included angle.
The correct equation is 8² = 7² + 11² – 2(7)(11)cos(P)
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Which of the following is another way to represent 5 2/6 ?
A. 6 8/6
B. 4 8/6
C. 4 12/6
D. 5 6/8
Answer:
4 8/6
Step-by-step explanation:
5 = 30/6
1 = 6/6
5 - 1 = 4
4 6/6 + 2/6
4 8/6
Mark Brainliest please
Two trains train a interim be weird total of 333 tons. Train hey is heavier than train B.The difference of their weight is 141 tons… What is the weight of each train??
Answer:
Weight of Train A = A = 237 tons
Weight of Train B = B = 96 tons
Step-by-step explanation:
Two trains train a and be weigh a total of 333 tons. Train A is heavier than train B.The difference of their weight is 141 tons… What is the weight of each train??
Let us represent:
Weight of Train A = A
Weight of Train B = B
Our system of Equations is given as:
A + B = 333 tons..... Equation 1
A - B = 141 tons....... Equation 2
We solve using Elimination method
We Add Equation 1 and 2 together to Eliminate B
Hence:
2A = 474 tons
A = 474 tons/2
A = 237 tons
Solving for B using Equation 1
A + B = 333 tons..... Equation 1
237 tons + B = 333 tons
B = 333 tons - 237 tons
B = 96 tons
Therefore:
Weight of Train A = A = 237 tons
Weight of Train B = B = 96 tons
Can someone please help me? I'm stuck. P.S. correct answer will get brainliest.
Answer:
Statement | Reason
1. AB = CB | Definition of isosceles triangle
2. AD = CD | Definition of median
3. BD = BD | Reflexive property
4. ΔADB ≅ ΔCDB | SSS (Side-side-side)
Answer:
Solution given:
1.AB=BC. definition of isosceles ∆
2.AD=DC. definition of median
3.BD=BD reflexive
4.∆ADB=∆ CDB S.S.S.axiom
The diameter of a cone is 4 centimeters and has a height of 6 centimeters. How much
greater is the volume of a cylinder that has the same diameter and same height?
I need help figuring out the answer. please help
Answer:
it' b
Step-by-step explanation:
450 multiply by 5 = 2250
375 multiply by 4 = 1,500
1500+2250 ,=37503+3+67+7+4+6+78+68+22+71+100-100=
FIND THE ANSWER
Answer:
329
Step-by-step explanation:
thanks for points have a blessed day
Step-by-step explanation:
329 :) i kinda don't know how to explain
Z-31=16??? I just got into the Z section in algebra and my teacher gave us a paper with no explanation plz help ty!
Answer:z=47
Step-by-step explanation:
You're doing this because if you have z-31=16 you have to + 31 to 16 which would give you 47 then that would be a one step equation
z-31=16
you would make a line between the equal sign so it is organized then plus 31 to sixteen then that would get you to 47
El 10% de que numero es 32
A box has a height of 5 cm a Length
os 6 cm and a width of 2 cm
What is its volumes
The sum of the measures of the angles of the triangle is 180 degrees. What is the value of each angle in the triangle if angle one is (3x + 51), angle two is (x) and angle three is (x + 19)
Answer:
the answer is 180/90 = 2
Step-by-step explanation:
How do I find measures to interior angles
Answer:
Just add all the angles together, and see if they add up to 180 degrees
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
The square has a side length of 10 ft and the circle inside the square has a diameter of 10 ft find the approximate area of the shaded region use 3.14 as an estimation for
Answer:
[tex]Area = 21.5ft^2[/tex]
Step-by-step explanation:
See attachment
Given
Square:
[tex]Length = 10ft[/tex]
Circle:
[tex]Diameter = 10ft[/tex]
[tex]\pi = 3.14[/tex]
Required: Calculate the area of the shaded region
First, calculate the area of the square:
[tex]A_1 = Length^2[/tex]
[tex]A_1 = (10ft)^2[/tex]
[tex]A_1 = 100ft^2[/tex]
Next, the area of the circle.
[tex]A_2 =\pi * \frac{d^2}{4}[/tex]
[tex]A_2 =3.14 * \frac{10^2}{4}[/tex]
[tex]A_2 =3.14 * \frac{100}{4}[/tex]
[tex]A_2 =3.14 * 25[/tex]
[tex]A_2 =78.5ft^2[/tex]
The shaded region has the following area
[tex]Area = A_1 - A_2[/tex]
i.e. the difference between the area of the square and the area of the circle
[tex]Area = 100ft^2 - 78.5ft^2[/tex]
[tex]Area = 21.5ft^2[/tex]
Answer quickly!
A biologist measures 10 quadrats of an area of 0.10 acre each. If the average number of daisies per quadrat is 8, how many daisies are there total in a 5-acre field?
can someone help me plz
Answer:
No thanks I don't feel like it
Step-by-step explanation:
I don't feel like it
30% of __ is 15 help again-
Answer:
50
Step-by-step explanation:
15 is 30% of 50
find the coefficient
9514 1404 393
Answer:
1/3
Step-by-step explanation:
The coefficient of expansion can be found by computing the ratio of any (non-zero) image coordinate to its corresponding pre-image coordinate.
Q'x/Qx = 1/3
The coefficient of dilation is 1/3.