Answers
Answer:
Step-by-step explanation:
All are true except for the second. Only the second is false.
(pi)(d) is the circumference (not the area) of a circle.
The incorrect statement is [tex]A = \pi d[/tex].
The correct option is 2.
What is Surface Area?The area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface. Square units are used to measure it as well. The region that includes the base(s) and the curved portion is referred to as the total surface area. It is the overall area that the object's surface occupies. The total area of a form with a curved base and surface is equal to the sum of the two areas.
As per the given data:
We have to find out the incorrect statements out of the given options about the area of a circle.
[tex]A = \pi r^2[/tex]
This statement is correct, as the area of a circle is pi times square of the radius.
[tex]A = \pi d[/tex]
This statement is incorrect, as the area of a circle is given by:
[tex]A = \pi r^2 =\frac{ \pi d^2}{4}[/tex]
The area of a circle determines how much space is covered by the circle.
This statement is correct.
The area of a circle describes the number of square units that fit inside the circle.
This statement is correct.
Hence, the incorrect statement is [tex]A = \pi d[/tex].
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Related Questions
Spiral Review A chili cook-off has adult tickets a and child tickets C. A group of visitors buys 3 adult tickets and 2 child tickets and pays a total of $26.
Another group buys 5 adult tickets and 3 child tickets and pays $42. Write and solve a system of equations to find the price of each type of ticket.
Enter the correct answers in the boxes.
Equation 1:?
Equation 2:?
adult: $ 6
child: $ 4
I just need help on making equations
Answers
Equation 1 would be: 3a+2C
Equation 2 would be: 5a+3C
The system of equations are solved and the cost of adult ticket and child tickets are $ 6 and $ 4 respectively
What is an 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.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the adult tickets be a
Let the child tickets be c
Group A buys 3 adult tickets and 2 child tickets and pays a total of $26
So , 3a + 2c = 26 be equation (1)
And , Group B buys 5 adult tickets and 3 child tickets and pays $42
So , 5a + 3c = 42 be equation (2)
On simplifying , we get
Multiply equation (1) by 5 and equation (2) by 3 , we get
15a + 10c = 130 be equation (3)
15a + 9c = 126 be equation (4)
Subtracting equation (4) from equation (3) , we get
c = $ 4
Therefore , the cost of child ticket is $ 4
Substituting the value of c in equation (1) , we get
3a + 2 ( 4 ) = 26
3a + 8 = 26
Subtracting 8 on both sides , we get
3a = 18
Divide by 3 on both sides , we get
a = $ 6
Therefore , the cost of adult ticket is $ 6
Hence , the system of equations are solved
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I really need help please help me
Answers
Answer:
2.82
Step-by-step explanation:
I tried my best so im sorry if it isnt correct
x4-5x2-24=0
(x2+3) (x2-8)=0
x2 +3=0
x= 2.82
elyse has $18 on a gift card that she can use to rent movies online . the graph at the right shows the amount of money remaining on her gift card based on the number of movies she rents . find the unit rate of the graph , and describe what it means in the context of the situation.
Answers
HELP HELP HELP HELP FAST
Answers
Answer:
[I didn't do it right]
Step-by-step explanation:
[Deleted since it has been said to be wrong and I would not like to spread misinformation]
Write the equation of the line that has a slope of four and passes through the point 6,5
Answers
Answer:
4x-y=19, y=4x-19
Step-by-step explanation:
I learned a really quick way to do these in geometry.
Let's use standard form or ax+by=c.
Slope of 4: 4x - y = c.
Passes through point 6,5.
4(6) - 5 = c
c= 24-5
c=19
4x-y=19
y=4x-19
Help me Out pleaseeeeeeeee
Answers
what is 5 to the power of 6 over 5 to the power of 2
Answers
Answer:
625
Step-by-step explanation: 5^6/5^2
multiply 5^6 and than devide your answer with 5^2
Answer:
625
Step-by-step explanation:
5^6=15625
5^2=25
15625/25=625
15. Simplify an expression for the area of the
rectangle shown below.
8x - 2.
4.
Answers
Answer:
Area of the rectangle A = 32 x - 8
Step-by-step explanation:
Explanation:-
Given that the length of the rectangle(l) = 8x-2
Given that the width of the rectangle (w) = 4
Area of the rectangle = length × width
A = (8x - 2) × 4
A = 32 x - 8
Final answer:-
Area of the rectangle A = 32 x - 8
Evaluate the expression for y = 2. Simplify your answer.
y − 12
y
=
Answers
Answer:
-10
Step-by-step explanation:
this is the answer have a great day
PLEEASEEE HELP ME NOONE WILL HELP ME PLEASE HELP ME
Answers
Answer:
63.97 sheets of paper
Step-by-step explanation:
40-18.25 = 21.75
21.75 divided by 0.35 = 63.97
Find the slope and y-intercept of the line in each graph.
Answers
2. Slope is -2/3 and the y is 2
Hope this helps
PLS I NEED HELP I ONLY HAVE 15 MINS I BEG YOU PLEASE!! :(
In 1984 the average American used to eat 55.7 pounds of chicken. This was 2.8 pounds more than the 1982 average. By what percent did chicken consumption increase from 1982 to 1984?
Answers
To solve this, we need to use the z statistic. The formula for z score is:
z = (x – u) / s
where x is sample value = less than 90, u is the sample mean = 90.6, s is the standard deviation = 17.2
z = (90 – 90.6) / 17.2
z = -0.035
From the standard distribution tables:
P (z = -0.035) = 0.4860
Therefore there is about 48.60 % chance that it will be less than 90 pounds
Which expression is equivalent to 6 x 2 + 13 x + 5? (2x + 5)(3x - 1) (2x - 5)(3x + 1) (2x + 1)(3x + 5) (2x - 1)(3x - 5)
Answers
Answer:
(2x + 1)(3x + 5)
Step-by-step explanation:
PLS HELP ASAP (THE PICTURE IS BELLOW)
Answers
Answer:
10
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
The store price of an electronic gadget is $100. If the markup percent set by the store is 45%. Calculate the markup price set by the store on the electronic gadget.
Answers
Answer:
145$ is the markup price i think
Step-by-step explanation:
100$+ 45%=x
100/100%=1
45%*1=45
100$+45$= 145$
how to write 13.208 in word form
Answers
At a construction job for a mansion there are 32 painters. Of these painters, 24 of them are painting the interior of the mansion. What percent of these painters are painting the interior?
Answers
Answer:
[tex]\% Percent = 75 \%[/tex]
Step-by-step explanation:
Given
[tex]Painters = 32[/tex]
[tex]Interior\ Painters = 24[/tex]
Required
Determine the percentage of the interior painters
This percentage is calculated as:
[tex]\% Percent = \frac{Interior\ Painters}{Painters} * 100\%[/tex]
This gives:
[tex]\% Percent = \frac{24}{32} * 100\%[/tex]
[tex]\% Percent = \frac{24* 100\%}{32}[/tex]
[tex]\% Percent = \frac{2400\%}{32}[/tex]
[tex]\% Percent = 75 \%[/tex]
75% are painting the interiors
Solve for t. (Answer must be completely simplified)
10t=11
Answers
Answer:
T can be equal to 1 1/10 or 1.1 or 11/10
Step-by-step explanation:
10t=11
So divide by 10 on both sides.
t=11/10 which can be simplified to t=1 1/10 or t=1.1
:)
14. Which is the equation of the line that passes through the points (4, 3) and (6, 2)?
A. y = x –1
B. y = 0.5x –1
C. y = -0.5x + 5
D. y = -0.5x + 1
Answers
D (sorry if I’m work)
The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
The equation of the line is y = -0.5x + 5
Option C is the correct option.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
The equation of the line y = mx + c.
The line passes through (4, 3) and (6, 2).
This means,
We can find the slope using the coordinates (4, 3) and (6, 2).
Slope = m
m = (2 - 3) / (6 - 4)
m = -1 / 2
Now,
For the y-intercept.
Take any point.
(4, 3) = (x, y)
y = mx + c
3 = (-1/2)4 + c
3 = -2 + c
3 + 2 = c
c = 5
Now,
m = (-1/2) = -0.5
c = 5
The equation of the line is y = -0.5x + 5
Thus,
The equation of the line is y = -0.5x + 5
Option C is the correct option.
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Help please will give brainliest
Answers
Answer:
the first one
Step-by-step explanation:
have a great day
please help fast!!
The two prisms below are similar. What is the value of x?
10
15
A. 1
B. 15
C. 10
D. 5
Answers
The correct option is D, the value of the missing side x is 5.
How to find the value of x?If the two prism are similar, then there is a scale factor that when multiplied by the dimensions of the blue prism, we get the dimensions of the green one.
If that scale is k, then we can write:
3k = 15
Solving for k:
k = 15/3
k = 5
Now, the correspondent side to the one that measures x, has a measure of 1 unit (in the blue prism), then the value of x is:
1*k = x
1*5 = x
5 = x
The correct option is D.
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The sales tax on a $25,000 car is $1375. What is the sales tax rate?
PLEASE SHOW HOW YOU SLOVED IT!!! THX <3
Answers
Answer:
$11 sales tax per $200
Step-by-step explanation:
1375/25,000 = 11/200
Answer:
5.5%
Step-by-step explanation:
1375/25000= 5.5%
25000 * 5.5% = $1375.00
Given that f(x) = x2 – 12x + 27 and g(x) = x – 9, find (f g)(x) and express
the result in standard form.
Answers
Use your plan to find the temperature at the top of Mt Everest.
The temperature at the top can be found by evaluating the
expression —3— 58 (1).
Answers
Answer:
- 61
Step-by-step explanation:
-3 - 58 = -61
times 1 is
is -61
This graph shows which inequality?
d > 5
d ≥ 5
d ≤ 5
d < 5
Answers
Answer:
d > 5
Step-by-step explanation:
The circle is open which means there is no line underneath the sign, the way the arrow is facing is the same way the sign should be facing.
Here is a story: Lin bought 4 bags of apples. Each bag had the same number of apples. After eating 1 apple from each bag, she had 28 apples left.
Answers
Answer:
she started with 32 apples and ended with 28
there were 8 apples in each bag but after she ate one from each bag, there are only 7 apples in each bag
Step-by-step explanation:
Please help i really need help on a b and c
Answers
It will take 72 cars for the class fund to be $385. Work shown is in the picture attached.
Help me I need the answer for x
Answers
Answer:
60=x
Step-by-step explanation:
Hope this helped
Find the value of x
Answers
Answer:
The value of x is 72 degrees
Step-by-step explanation:
what is 28 divided by 1.0000
Answers
Answer:
It's still gonna equal 28