Answers
Answer:
C
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( where r is the radius )
Here diameter = 8 cm , thus r = 8 ÷ 2 = 4 cm , thus
A = π × 4² = 16π cm² → C
Answer:
C
Step-by-step explanation:
The equation of the area of a circle is [tex]\pi r^{2}[/tex].
We already know the diameter is 8, and the radius is half of the diameter, so it would be 4.
[tex]\pi 4^{2}[/tex]. This is our equation now. Now, we need to square 4, and 4x4 is 16.
Since 16[tex]\pi[/tex] and [tex]\pi[/tex]16 are the same, C is the correct answer.
Related Questions
A new theater is being built for the city ballet. The balcony has 200 seats. The floor has 10 rows with x seats in each row. The number of people in the theater must be under 500 to meet fire safety regulations. What is the solution of this inequality, and what is it’s meaning?
A. 10x + 200 > 500; the new theater must have more than 30 seats in each row on the floor to meet fire safety regulations.
B. 10x + 200 < 500; the new theater must have fewer than 30 seats in each row on the floor to meet fire safety regulations.
C. 10x > 500; the new theater must have more than 50 seats in each row on the floor to meet fire safety regulations.
D. 10x < 500; the new theater must have fewer than 50 seats in each row on the floor to meet fire safety regulations.
Answers
Answer:
B
Step-by-step explanation:
Because I got it right
A local electronics store has rolled back the price on its best-selling HDTV. The
old price was $400. The new price is 6 percent less. What is the new price?
Answers
Answer:
376$
Step-by-step explanation:
400$-6%=376$
Hope this helps you!!!!! :D
Qotd:
Who do you call when 911 is committing the crime?
Answers
Answer:
Justice Department ?
Step-by-step explanation:
Answer:
816-800-0000
Step-by-step explanation:
Give the function y=-5x+12, what is the output (y) when the input, x=-2?
Answers
Solving Steps:
y=-5x+12
y=-5(-2)+12
y=10+12
y=22
please answer this friends.
Answers
Answer:
see explanation
Step-by-step explanation:
To express a proper fraction in decimal form.
Divide the numerator by the denominator, that is
22 ÷ 7 ≈ 3.1429 ( to 4 decimal places )
Coach Barnette recorded 200 meter running times of runners to the nearest hundredth of a second. He rounded Waneta’s time to 19.30 seconds. Which of the following could have been Waneta’s actual time?
who ever awnser i will mark brainist
Answers
Answer:
[tex]200^{2}[/tex] meter
or 19.3
ithink
Step-by-step explanation:
SOMEONE PLS HELP ILL LOVE U FOREVER <333 PLS
Answers
Answer:
110
Step-by-step explanation:
the height is the step number and the width is always 1 number above the height
10 x 11 = 110
which shape is similar to shape l?
Answers
Answer:
pentagon
Step-by-step explanation:
got 5 sides
The average person breathes 70 pounds of air in two days. At this rate, how many pounds of air will the average person breathe in 10 days?
Answers
70x5=350
Answer
350
Step-by-step explanation:
The distance between two towns is 88 kilometers. There are approximately 8 kilometers in 5 miles. What measurement is closest to the number of miles between these two towns?
Answers
Answer:
It's 55
Step-by-step explanation:
5/8=0.625
0.625 times 88 = 55
Please help me with this u don’t have a clue.
Answers
Answer:
Im so sorry i cant help
Step-by-step explanation:
p=m+x² (make x the subject)
Answers
Answer:
[tex]x=\sqrt{p-m}[/tex]
Step-by-step explanation:
if you divide a square, that makes it a square root
and then you just subtract the m
8. x - 6 = 2
what does x equal heeeeeeeeeelp!
Answers
Answer:
x=0
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
hope this helps
Does this graph show a function? Explain how you know.
Answers
The graph shown above does not represent a function.
How to Identify a Graphed Function?If the curve of the graph is to the right or left, it does not represent a function because an x-value will have only two different y-values that corresponds to it, which is not a characteristic of a function.
The graph shown has the curve with the tip to the right, this means, for example, x-value of 5 has two different y-values of -4 and 4.
Therefore, the graph is not a function.
Learn more about functions on:
https://brainly.com/question/10439235
#SPJ1
I need help trying to do this
Answers
Answer:
me likey points ❤️❤️❤️
cual es la función inversa de: f(x)=x2-3
Answers
Answer:
f−1(x)=√x−3,−√x−3
Replace f(x) with y.
y = x²-3
Swap the variables.
x = y²-3
Solve for y.
Rewrite the equation as y² - 3x = x.
Add 3 to both sides of the equation.
y² = x - 3
Take the square root on both sides of the equation to eliminate the exponent on the left side.
[tex]\bf{y=\pm\sqrt{x+3} }[/tex]
The complete solution is the result of the positive or negative portions of the solution.
First, use the positive value of ± to find the first solution.
[tex]\bf{y=\sqrt{x+3} }[/tex]
Then use the negative value of ± to find the second solution.
[tex]\bf{y=-\sqrt{x+3} }[/tex]
The complete solution is the result of the positive or negative portions of the solution.
[tex]\bf{y=\sqrt{x+3} }[/tex]
[tex]\bf{y=-\sqrt{x+3} }[/tex]
Solve for y and substitute with [tex]\bf{f^{-1}(x) }[/tex].
substitute f⁻¹( x ) for y to show the final answer.
[tex]\boldsymbol{f^{-1}(x)=\sqrt{x+3},-\sqrt{x+3} }[/tex]
Set the composite results function.
[tex]\boldsymbol{g(f(x)) }[/tex]
Evaluate g(f(x)) by substituting the value of f into g.
[tex]\boldsymbol{\sqrt{(x^{2} -3)+3 } }[/tex]
Add −3 and 3.
[tex]\boldsymbol{g(x^{2} -3)=\sqrt{x^{2} +0} }[/tex]
Add x² and 0.
[tex]\boldsymbol{g(x^{2} -3)=\sqrt{x^{2}} }[/tex]
Extract terms from under the radical, assuming positive real numbers.
[tex]\boldsymbol{g(x^{2} -3)=x }[/tex]
Given the [tex]\bf{g(f(x))=x,f^{-1}(x)=\sqrt{x+3},-\sqrt{x+3} }[/tex] is the inverse of [tex]\bf{f(x)=x^{2} -3. }[/tex]
[tex]\boldsymbol{f^{-1}(x)=\sqrt{x+3},-\sqrt{x+3}. }[/tex]
Look at this graph. What is the slope? Simplify your answer and write it as an
improper fraction, proper fraction or an integer.
Answers
You can eliminate one of the variable terms in an ___ by adding or subtracting another equation
Answers
Answer:
system of equations
Step-by-step explanation:
You can eliminate one of the variable terms in a system of equations by adding or subtracting another equation.
Which value of m satisfies the inequality 170-7m >99?
Answers
Answer:
[tex] \huge \purple{m < \frac{71}{7} } \\ [/tex]
Step-by-step explanation:
[tex]170 - 7m > 99[/tex]
Move 170 to the right side of the inequality
[tex] - 7m > 99 - 170 \\ - 7m > - 71[/tex]
Divide both sides by - 7
[tex] \frac{ - 7m}{ - 7} > \frac{ - 71}{ - 7} \\ m > \frac{71}{7} [/tex]
Flip the signs
We have the final answer as
[tex]m < \frac{71}{7} \\ [/tex]
Hope this helps you
Answer:
the answer is A. so 10
help on 1 and 2 please!
Answers
Answer:
1. filled in circle at negative two, and never ending line to the left.
2. -6 ≤ x
Step-by-step explanation:
1. it is less than or equal to.
2. there is a filled in circle at -6 and it keeps on going to the right which is greater than.
Helpppppppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
45 mph i think
Step-by-step explanation:
Answer: D i think
Step-by-step explanation:
PLSS HELP
Determine if the sequence is an arithmetic sequence.
Write yes or no. Explain. 8, 4, 0, -4, -8
Answers
Answer:
Yes
Step-by-step explanation:
It goes down by 4 every time.
For each diagram, decide if y is an increase or a decrease relative to x. Then determine the percent increase or decrease.(sry the stuff on the pic is black)
Answers
Answer:
In A: y is a 25% decrease of x
In B: y is a 25% increase of x
Step-by-sep explanation:
For A:
The diagram in A shows that x = 4, while y = 3.
Thus, this means that y decreased by 1, relative to x.
The percentage decease would be:
[tex] \frac{1}{4} \times 100 [/tex]
[tex] \frac{100}{4} = 25 [/tex]
Therefore, y is a 25% decrease of x.
For B:
The diagram for B shows that x = 4, while y = 5.
Thus, this means that y increased by 1, relative to x.
The percentage increase would be:
[tex] \frac{1}{4} \times 100 [/tex]
[tex] \frac{100}{4} = 25 [/tex]
Therefore, y is a 25% increase of x.
Answer:
Step-by-step explanation:
A- Y is a decrease.
1/4 x 100 = 100/4 =25%
25% and decrease.
B- Y is a increase
1/4 x 100 = 100/4=25%
25% and increase.
The local newspaper has letters to the editor from 40 people. If this number represents 4% of all of
the newspaper's readers, how many readers does the newspaper have?
Answers
Answer:
1000 readers
Step-by-step explanation:
40 people represent 4% of the total number of readers.
4% is 1/25 of 100%, therefore:
4% x 25 = 100%
So, if we multiply the number of people that represent 4% by 25, we will get the total number (100%).
40 x 25 = 1,000
The newspaper has 1000 total readers.
Alternatively, you could also divide 4% (40) by 4 which would give you 1%=10. Multiply this by 100 to get 100% which gives us: 100% = 1000.
Hope this helped!
help me plss
Ms. Snyder owes her friend 4 ½ dollars. She pays her 2 ¾ dollars. How much money does Ms. Snyder still owe her friend?
Answers
Answer:
$1.75
Step-by-step explanation:
4.5-2.75=1.75
Answer:
1¾ dollars
Step-by-step explanation:
4.5 - 2.75 = 1.75
Which is the solution to the inequality?
1/4+X <5/6
0 x < 7/12
0 x > 7/12
0x< 1 1/12
ox > 1 1/12
Answers
Answer:
x < [tex]\frac{7}{12}[/tex]
Step-by-step explanation:
Move all terms not containing X to the right side of the inequality.
Make the addition sign the opposite, which is subtraction.
5/6 - 1/4 = 7/12
The < is still the same, so after the X is alone, make it an inequality.
x < [tex]\frac{7}{12}[/tex] is the answer.
hi what’s
0 divid. Ed bye o9sskwnqzjsmmskmsmskq?
Answers
what is the answer to 7 ⅚ - 3 ⅓=?
Answers
Answer:
4 1/2
Step-by-step explanation:
7 5/6 - 3 1/3
changing to improper fractions;
47/6 - 10/3 LCM = 6
(47 - 20)/6
27/6 = 9/2 = 4 1/2.
Hola espero que tengan un buen día, me ayudan con mi tarea por favor? =)
Savannah tenía 400400400 chispas de chocolate. Ella guardó xxx chispas para decorar y mezcló el resto equitativamente para 333 charolas de panqués.
¿Cuántas chispas de chocolate había en cada charola de panqués?
Answers
Answer:
ella uso 1202403.6 chispas de chocolate para cada charola de panques
oh algo asi no se jajjaja
3^2*3^-3 i need help fast
