Answers
Answer:
198.5 cm²
Step-by-step explanation:
From the figure above we can treat the two semi circles as 1 circle.
Now, the diameter is 10 cm
Thus;
Radius; r = 10/2
r = 5cm
Now, formula for area of a circle is;
A = πr²
Thus;
Area of 2 semi circles = Area of 1 circle = π × 5²
A_circle = 78.54 ≈ 78.5 cm²
When we take out the 2 semi circles, what we have left is a rectangle.
Now, the length of the rectangle will be;
Length; L = 22 - 5 - 5 = 12 cm
*This is because the radius of the semi circle is 5 and distance from the edge of the 22 cm length to the centre of the semi circle is 5 cm
Thus, area of rectangle is given by;
A_rect = LW
W in the image is 10 cm
Thus;
A_rect = 12 × 10
Total area of shape is;
A_total = 120 + 78.5
A_total = 198.5 cm²
Related Questions
What is the area of the trapezoid?
6 m
4 m
5 m
3 m
square meters
Answers
The area formula for a trapezoid is A = a+b
——h
2
You would cut the trapezoid vertically then you would do 4x3=12 then 3x5...3 because you subtracted 6-3, so 3x5 is 15 then 15/2 would be 7.5 you divided bc it’s a triangle and the formula for the triangle is A=bxh/2
Then lastly you would add 7.5 + 12 and you’d get 19.5m.
Hope it helped :)!
The first person to answer correctly I will give them a brainlies, 5 stars, and a thank you!
Which process in photosynthesis uses energy from the sun?(1 point)
1. splitting water into hydrogen and oxygen
2. combining carbon dioxide and hydrogen
3. absorbing carbon dioxide
4. releasing oxygen
Answers
Answer:
1. splitting water into hydrogen and oxygen
Step-by-step explanation:
Answer:
Photosynthesis takes place in two stages: the light-dependent reactions and the Calvin cycle. In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water.
Step-by-step explanation:
can u pls go answer my question? Thank you and have a nice day :)
https://brainly.com/question/21589806
The price paid for
a $15 shirt after a
45% discount is
applied
Answers
Answer:
BStep-by-step explanation:
Trust mePLZZ HURRY!!
The histogram shows the scores of students on their most recent history test. How many students scored 80% or better on the test?
A. 8 students
B. 10 students
C. 18 students
D. 22 students
Answers
Answer: 18
Step-by-step explanation:
add the the ones above 80% and higher
HELP ME ASAPPP
Write the standard equation of a circle with center (2, 1) and radius 8.
Answers
Answer:
C
=
(
a
,
b
)
the center coordinates of circle
a
=
2
,
b
=
−
1
,
r
=
8
Step-by-step explanation:
Which of the following is a central angle?
A
LEGD
B
LEAD
ZCOB
D
LCDA
Answers
please help me I do not quit understand and for the best answer I will Mark brainliest
Answers
Answer:
The second to last option
Step-by-step explanation:
imagine that the diagram only shows part of each line, or edge. instead, they extend forever in both directions. imagining RQ extending to both sides lets you find other "extended" intersecting lines. in this case, QU and SR
here is an example in ascii art:
___________
| |
|___________|
Imagine that the separated lines are instead all sides of a rectangle. My ascii is limited.
Nothing here intersects
__|______________|__
| |
__|______________|__
| |
now you can see intersecting lines. so you can answer the question correctly.
Please help I really need it
Zoom in so it won’t be blurry
Answers
Answer:
this is the answer45x+134x
can you let me know asap
Answers
Answer:
Y + 2
Step-by-step explanation:
Answer:
f(n)=0*2
Step-by-step explanation:
f(n) could be f(x), but f(n) makes more sense.
i hope this help, i'm learning this in school still :)
converting slope-intercept form into standard form, i’m so confused
Answers
Answer:
7x+2y=(-6)
Step-by-step explanation:
PLSSSSSSS HELP ILY TYSM
Answers
Answer:
5. k=−3
6. x=4
7. n=−108
Step-by-step explanation:
5. -14k+29=71
Subtract 29 from both sides
-14k+29-29=71-29
Simplify
-14k=42
Divide both sides by -11
-14k/-14=42/-14
6. -33=19-13x
Subtract 29 from both sides
-14k+29-29=71-29
Simplify
-14k=42
Divide both sides by -14
-14k/-14=42/-14
Simplify
k=-3
7. 8+n/25=-4
Multiply both sides by 25
25(8+n)/25 = 25 (-4)
Simplify
8+n=-100
Subtract 8 from both sides
8+n-8=-100-8
Simplify
n=-108
Alexa has a points card for a movie theater. She receives 25 rewards points just for signing up. She earns 4.5 points for each visit to the movie theater. She needs 61 points for a free movie ticket. How many visits must Alexa make to earn a free movie ticket?
Answers
Answer:
8
Step-by-step explanation:
25+ (4.5 x 8)
25+ 36
=61.
She needs 8 visits
Answer:
8
Step-by-step explanation:
61 - 25 = 36
36 divided by 4.5 = 8
HELP!!
Question 4 (1 point)
How likely is it for the spinner to land on a 3?
Impossible
Unlikely
Likely
Certain
Answers
Answer:
likely
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Triangle EFG is dilated with a scale factor of 1/2 to create triangle E'F'G'.
The measure of angle G is 42 degrees. What is the measure of angle G'? *
a)21
b)42
c)84
d)148
Answers
What is the radius of this circle?
Answers
Answer:
9in
Step-by-step explanation:
radius is half the diameter
18/2 is 9 so the radius is 9in
MAY YOU PLEASE HELP ME
Answers
Answer: y=20x+10
Step-by-step explanation:mark me brainlest please
find the solution for X
3x - 5 = 7x + 11
Answers
Answer:
x=-4
Step-by-step explanation:
3x-5=7x+11 Add like terms
+5 +5
3x=7x+16 Do it again...
-7x -7x
-4x=16 Now divide
x=-4
Answer:
The answer is x=-4
Step-by-step explanation:
3x-5=7x+11
1) you have to move the number that has a variable with it onto one side(3x and +7x) and the numbers that do not have a variable move them onto the other side (-5 and +11),but if you move them you have to change the sign like the underlined numbers below
3x-7x=5+11
2) you have to subtract 3x and-7x which it equals -4x and then you have to add 5 and 11 which it equals 16
Equation now -4x=16
3) you have to divide -4x into -4x and also divide -4x into 16 which you will get x=-4
Hope it helps out! :)
Determine which function(s) are exponential. Select all that apply.
Answers
Answer:
option B and option C represent an exponential function.
Step-by-step explanation:
We know that following are some of the properties of different functions.
Linear Function:
The constant change in x and y
Quadratic Function:
The constant change in x
The constant 2nd differences in y
Exponential Function:
The constant change in x
The constant ratio in y
Determining the nature of the exponential function
Option A)
x 0 1 2 3 4
y 0 1 4 9 16
Here:
There is a constant change in x:
1 - 0 = 1; 2 - 1 = 1; 3 - 2 = 1; 4 - 3 = 1
BUT, there is NO CONSTANT ratio, as
1/0 = ∞, 4/1 = 4, 9/4 ; 16/9
Thus,
Table A DOES NOT represents an exponential function.
Option B)
x 0 1 2 3 4
y 1/3 1 3 9 27
Here:
There is a constant change in x:
1 - 0 = 1; 2 - 1 = 1; 3 - 2 = 1; 4 - 3 = 1
There is also a constant ratio, as
1/[1/3] = 3, 3/1 = 3, 9/3 = 3; 27/9 = 3
As there is constant change in x as well a constant ratio.
Thus,
Table B REPRESENTS an exponential function.
Option C)
x 0 1 2 3 4
y 5 5/2 5/4 5/8 5/16
Here:
There is a constant change in x:
1 - 0 = 1; 2 - 1 = 1; 3 - 2 = 1; 4 - 3 = 1
There is also a constant ratio, as
[5/2]/5= 1/2,
[5/4]/[5/2] = 1/2
[5/8]/[5/4] = 1/2
[5/16]/[5/8] = 1/2
As there is constant change in x as well a constant ratio.
Thus,
Table C REPRESENTS an exponential function.
Option D)
x 0 1 2 3 4
y 4.5 4 3.5 3 2.5
Here:
There is a constant change in x:
1 - 0 = 1; 2 - 1 = 1; 3 - 2 = 1; 4 - 3 = 1
BUT, there is NO CONSTANT ratio, as
4/4.5 = 4/[45/10] = 40/45 = 8/9
3.5/4 = [35/10]/4 = 35/40 = 7/8
3/3.5 = 3/[35/10] = 30/35 = 6/7
2.5/3 = [25/10]/3 = 25/30 = 5/6
Table D DOES NOT represent an exponential function.
Conclusion:
Therefore, option B and option C represent an exponential function.
The functions that are exponential would be:
B). [tex]x[/tex] 0 1 2 3 4
[tex]y[/tex] 1/3 1 3 9 27
C). [tex]x[/tex] 0 1 2 3 4
[tex]y[/tex] 5 5/2 5/4 5/8 5/16
What are Exponential Functions?
B). Given that,
[tex]x[/tex] 0 1 2 3 4
[tex]y[/tex] 1/3 1 3 9 27
As we see,
The value of [tex]x[/tex] undergoes a constant change of 1
[tex]1 - 0 = 1; \\2 - 1 = 1; \\3 - 2 = 1; \\4 - 3 = 1[/tex]
The ratio also remains constant
[tex]1/[1/3] = 3, \\3/1 = 3, \\9/3 = 3; \\27/9 = 3[/tex]
Thus, it exemplifies an exponential function.
Similarly,
C). [tex]x[/tex] 0 1 2 3 4
[tex]y[/tex] 5 5/2 5/4 5/8 5/16
As we see,
The value of [tex]x[/tex] undergoes a constant change of 1
[tex]1 - 0 = 1; \\2 - 1 = 1; \\3 - 2 = 1; \\4 - 3 = 1[/tex]
The ratio also remains constant
[tex][5/2]/5= 1/2\\\\[5/4]/[5/2] = 1/2\\\\[5/8]/[5/4] = 1/2\\\\[5/16]/[5/8] = 1/2[/tex]
Thus, it exemplifies an exponential function.
Thus, options B and C are the correct answers as the other two have a constant change but not a constant ratio.
Learn more about "exponential function" here:
brainly.com/question/15352175
j – 18 = 43 what's the answer guys
Answers
Answer:
61
Step-by-step explanation:
We know from the equation 43 is 18 less then j. Therefore, if we add 18 to 43, we will get the value of j.
43 + 18 = 61
y=-2/3x+1
how do you find the slope and y intercept
Answers
Answer:
The slope is -2/3 and the y intercept is 1
Step-by-step explanation:
The slope intercept form of a line is
y = mx+b where m is the slope and b is the y intercept
y = -2/3 x+1
The slope is -2/3 and the y intercept is 1
14. Shawn usually sells umbrellas for $20. On rainy days, he sells them for
30% more. What is the cost on a rainy day of buying a new umbrella? *
$14
$26
O $6
O $30
Answers
Answer:
$26
Step-by-step explanation:
4) Justin had 32 coins in nickels and quarters. He had 8 more quarters than nickels. How many of
each type of coin did he have?
Answers
n + (q + 8) = 32
12 + (20 + 8) = 32
A recipe uses 5 cups of flour for every 2 cups of sugar. How much sugar is used for 1 cup of flour? Exact answers only
Answers
Answer:
0.4
Step-by-step explanation:
Hopefully this can help
help pleaseeee!!!!!! 30 points
Answers
Answer:
Pen = y
25.00 + y
Step-by-step explanation:
expressions do not have equal signs.
25 more than the pen is 25 + y
the expression would be
25 + y
Answer:
we will say that x stands for the pen
x + $25 = cost of the pencil
Step-by-step explanation:
Can someone please explain why x= -2! ASAP!!
Answers
Divide and you get x=-2
9514 1404 393
Answer:
x = -2 because that is the value that makes the equation true
Step-by-step explanation:
Minus signs are everywhere. They can all be eliminated by multiplying both sides of the equation by -1.
-1(-x -6 -x) = -1(-2)
(-1)(-x) +(-1)(-6) +(-1)(-x) = 2 . . . . . distribute the -1
x + 6 + x = 2 . . . . . . . . simplify
x + x + 6 = 2 . . . . . . . . rearrange
(1 +1)x +6 = 2 . . . . . . . . factor, using the distributive property
2x +6 = 2 . . . . . . . . . . . simplify
2x +6 -6 = 2 -6 . . . . . . subtract 6 from both sides
2x = -4 . . . . . . . . . . . . . simplify
(2x)/2 = (-4)/2 . . . . . . . divide both sides by 2
x = -2 . . . . . . . . . . . . . . simplify
x is -2 because that is the value we get when we apply the properties of equality to the equation. We can check to see if it works in the original equation.
Check
-x -6 -x = -2
-(-2) -6 -(-2) = -2 . . . . put -2 where x is
2 -6 +2 = -2 . . . . . . . . simplify the signs
-4 +2 = -2 . . . . . . . . . . add the first two terms (could do all at once)
-2 = -2 . . . . . . . . yes, the value of x=-2 makes the equation true
_____
Additional comment
The properties of equality we're concerned with here are the multiplication property of equality, the addition property of equality and the division property of equality. Respectively, these tell us that multiplying, adding, or dividing both sides of the equation by the same number doesn't change the value of the variable.
These properties are essential to understanding how algebra works.
A cylinder has a height of 14 centimeters and a radius of 17 centimeters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Answers
Volume = [tex] \sf{\pi r^2 h} [/tex]
[tex] = \sf{3.14 \times {17}^{2} \times 14 } = \sf{12704.45~cm^3} [/tex]
write a story problem that can be represented with the following equation:
8x + 3 = 27
Answers
Answer:
Not sure if this works but here you go
Step-by-step explanation:
Junko spends 27 dollars on bananas the tax is 3 dollars and each banana is 8 dollars how many bananas did junko buy
Answer:
read below
Step-by-step explanation:
A pack of pens costs 8 dollars at the store. you decide to buy three packs of them the tax is three dollars. so your total is 27 dollars.
alternatively:
You have 27$ to spend on pens. you know the tax will be 3$, and that each pack of pens costs 8$. what is the maximum amount of packs of pens you can buy?
Is 4d + (15 + 3d) equivalent to (4d + 15) + 3d ?
Answers
Answer:
Yes it is
Step-by-step explanation:
4d + 3d = 7d so 7d + 15 would be the expression for both except it would only be 3d + 4d = 7d and 7d + 15 is the same as the first expression that I got from evaluating 4d + (15 + 3d).
______________________________
1.) Solve [tex]\bold{4d+(15+3d)}[/tex]:Combine 4d and 3d: [tex]=7d+15[/tex]2.) Solve [tex]\bold{(4d+15)+3d}[/tex]:Combine 4d and 3d: [tex]=7d+15[/tex]3.) Compare:[tex]7d+15=7d+15[/tex]
So your answer [tex]\bold{7d+15=7d+15}[/tex].
______________________________
The blue line is the graph of y = –4x + 5. Use the sliders to make the orange line represent y = –2x + 3. Examine the graph. What is the solution of the system of these two equations?
(0, 5)
(1, 1)
(2, 2)
(3, 0)
Answers
2x=2
x=1
(1,1)
Answer:
1,1
Step-by-step explanation:
What is the equation of the function that is graphed as line a?
Answers
Answer:
b
Step-by-step explanation:
