A semi circle is half a full circle. Find the area of the full circle and divide it by 2.
Area of a circle = pi x r ^2
R is half the diameter
Area of full circle:
Area = 22/7 x 21^2
Area = 1386 sq. Ft
Area of stage = 1386/2 = 693 square feet
Answer:
3.14 x 42 x 42 = 5538.96ft
If your wondering why used 3.14 instead of 22/7 is because they are exactly the same just one is a whole number and the other is a fraction. I suggest you use 3.14 because its easier than 22/7.
Step-by-step explanation:
:))
PLEASE HELP!!!!! WORTH 40 POINTS
Answer:
B : 3/2
Step-by-step explanation:
Answer:
hi
Step-by-step explanation:
answer is B. i think so...
[tex] \frac{54}{36} = \frac{3}{2} [/tex]
have a nice day
please help me find the missing angles for each problem
Answer:
1) L1 = 123
L3 = 57
2) L1 = 49
L3 = 131
3) L2 = 116
L4 = 64
4) L1 = 108
L2 = 72
5) L3 = 69
L4 = 111
6) L3 = 124
L4 = 56
i need help with this
Answer:
151
Step-by-step explanation:
Answer:
151
Step-by-step explanation:
worth 70 points PLZ HELLLLLLLLLLP
Four expressions are shown:
6(5x + 3)
6(6x + 2)
36x + 12
30x + 18
Which two expressions are equivalent to 6(5x + 2 + x)?
Answer:
B 6(6x + 2)
C 36x + 12
Step-by-step explanation:
I just did this question myself and I got it correct.
geometry ^
please help me
please help me answer this!
Answer:
right
Step-by-step explanation:
tell me if i was wrong
For all values of x,
f(x) = 2x-3 and g(x) = x²+1
a) Find fg(x)
Simplify and give your answer in the form ax² + b
b) Find gf(x)
Simplify and give your answer in the form ax² + bx+c
Answer:
For f(x) = 2x + 3 and g(x) = -x 2 + 1, find the composite function defined by (f o g)(x)
(f o g)(x) = f(g(x))
= 2 (g(x)) + 3
= 2( -x 2 + 1 ) + 3
= - 2 x 2 + 5 Given f(2) = 3, g(3) = 2, f(3) = 4 and g(2) = 5, evaluate (f o g)(3)
Step-by-step explanation:
I need help with this question ( see image). Please show workings.
Answer:
14) (C) 8√2 km
15) (C) 225°
Exercise 15.17 (D) 8.7 km
Step-by-step explanation:
14)
d² = 8² + 8² = 64 + 64 = 128
d = √128 = 8√2 km
15) 180° + 45° = 225°
Exercise 15.17
QR² = 10² - 5² = 100 - 25 = 75
QR = √75 = 5√3 = 8.7 km
Answer:
Kofi, the building and the tree form an isosceles right triangle KTB.
Refer to picture
15.15The distance KB is the hypotenuse and its length is:
KB = √8² + 8² = √64 + 64 = √128 = 8√2Correct choice is C
15.16The angles at vertices K and B equal to 45° as opposite sides are equal.
TB is a vertical line which makes angle 180°.
Add 45° to get a required bearing:
180°+ 45° = 225°Correct choice is C
15.17P, Q and R form a right triangle with PR as hypotenuse.
RQ is the missing leg and its length is:
RQ = √PR² - PQ² = √10² - 5² = √100-25 = √75 = 8.7 (rounded)Correct choice is D
Please help, solve for x
Answer:
x = 6
Step-by-step explanation:
10x = 5 x 12 = 60
x = 6
A system of liner equation has been graphed in the diagram. Determine a responsible solution for the system of equation.
What is 92 - (12 + 16) ÷ 4? I keep re-doing my math for it, but when I check it with a calculator I'm always wrong.
Answer:
85
Step-by-step explanation:
92 - (12 + 16) ÷ 4
PEMDAS states we do the equation in the paranthesis 1st
92 - (28) ÷ 4
PEMDAS states we do division next
92 - 7
85
Rewrite the function in standard form.
f(x) = 4(x - 2)^2+ 3
Answer:
f(x) = 4x^2 - 13
Step-by-step explanation:
f(x)=4(x-2)^2 + 3 parentaties first
f(x) = 4 (x^2 - 4)+ 3 multiply by what's infront parentaties
f(x) = 4x^2 - 16 + 3 combine light terms
f(x) = 4x^2 - 13 Answer
Hope I helped :)
Help with 2 3 4 and 5 please!
Answer:
Number 2 is A
Number 3 is (5, -4)
Number 4 is (5, -4)
Number 5 is (4, 2)
Step-by-step explanation:
Answer:
B, maybe (5,-4), (5,-4), (4,2)
Step-by-step explanation:
Translate just means to move, and vertex T just means the dot labeled "T". Move just that point three to he left and two to the right is (-5,0). I would give (5,-4) as the answer for three, but I'm not too sure and don't wanna spread false information... onto number 4. (3,1) and the form is (x,y) Right is positive, so ADD 2 to 3. Down is negative, so SUBTRACT 5 to 1. You now have (5,-4). 2 multiplied by 2 is 4 and 1 multiplied by 2 is 2. (4,2)
PLEASE PLEASE HELP!! I NEED THE ANSWERS ASAP
Answer:
Pictures below showing the answer :)
Step-by-step explanation:
HELP PLEASEEEEE I'll give you a crown
Answer:
8.64%
Step-by-step explanation:
Write it as a decimal
7/81 = 0.0864
0.0864 is the decimal representation for 7/81
For Percentage Conversion :
step 1 To represent 0.0864 in percentage, write 0.0864 as a fraction
Fraction = 0.0864/1
step 2 multiply 100 to both numerator & denominator
(0.0864 x 100)/(1 x 100) = 8.64/100
8.64% is the percentage representation for 7/81
Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
Step-by-step explanation:
Angle x is what I call "point to point" with the angle that measures 95 degrees. Because of this, they are vertical (the vertex of an angle makes a "v"; hence, the reason I call them point to point). Vertical angles are congruent. That means that they have the same measure. If x is vertical to an angle that measures 95 degrees, then x also measures 95 degrees.
Answer:
x is 95 degrees.
Step-by-step explanation:
Caleb has at least $5. Which inequality is correct?
c < 5
or
c < 5
Answer:
It would be c is greater than or equal to five
Step-by-step explanation:
c≥5
5≤c
PLEASE HELP ANSWER CORRECTLY !!!!!!!!!!!!!! WILL MARK BRIANLIEST !!!!!!!!!!!!!!
Hello again, hehelol12.
PQ is equal to CB. So the length of PQ must be 9.
Angle PQR is equal to CBA. Therefore the measure of angle PQR is 46.
I hope this helps!
Step-by-step explanation:
since they are congruent triangles, all your have to done is the compare the longest side of the first triangle is equal to that of the other; the smallest side of the first triangle is equal to that of the second, and so for the corresponding angles
using the above method,
Answer:
a) from mere observation line PQ is the longest therefore it is equal to the length of the longest side of the other triangle. so line PQ = 9
b) again, ang PQ is the smallest, using the method, ang PQ = 46 degrees
but mind you, you could use a ruler to measure the length to find the longest more accurately.
Which is the most accurate way to estimate 26% of 91?
A: 3/4 x 92
B: 1/4 x 92
C: 1/3 x 90
D: 1/2 x 90
Answer:
B
Step-by-step explanation:
26% is close to 25%, which is equal to 1/4th.
You're adding to the number and removing from the percentage so it balances it out.
The estimation of 26% of 91 is 1/4 x 92.
The correct option is (B).
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
26% of 91
Now solving the above Quantity
= 26 /100 x 91
Now, We take 1 from 26 make it 25 and add that 1 to 91 make 92.
Then, 25 / 100 x 92
= 1/4 x 92
Hence, the estimation is 1/4 x 952.
Learn more about Percentage here:
https://brainly.com/question/29306119
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What is the value of x in 7x-18
Answer:
x = 21
Step-by-step explanation:
Although the picture is a bit blurry towards the bottom, I believe the opposite exterior angle is 129°
Opposite exterior angles are equivalent by the opposite exterior angles postulate. Of course, this only applies if the transversed lines are parallel, which they are in this case, because of the small orange arrows.
Anyhow, the equation should be set up as follows:
[tex]129 = 7x-18\\129 + 18 = 7x - 18 +18\\147 = 7x\\21=x[/tex]
Have a nice day, fam. Spread The Love.
Is 80, 150, 170 a pythagorean triple?
Answer:
Yes
Step-by-step explanation:
80² + 150² = 170²
6400 + 22500 = 28900
28900 = 28900
What is the volume of this rectangular prism?
Jasper built a dollhouse for his younger sister.
A rectangular prism has a length of 24 inches, width of 8 inches, and height of 10 inches. A triangular prism has a triangular base of 24 inches and height of 6 inches. The height of the prism is 8 inches.
Which equation shows how to determine the volume of the dollhouse?
V = 24 (10) (8) + one-half (6) (24) (8)
V = 24 (10) (8) + one-third (6) (24) (8)
V = 24 (10) (8) + one-half (6) (24) (10)
V = 24 (10) (8) + one-third (6) (24) (10)
Answer:
It's A :)
Also can i please have brainliest :)
Answer:
A
Step-by-step explanation:
PLS HELP ME PLS ANYONE I HAVE TO SUBMIT THIS AS SOON AS POSSIBLE PLS PLS PLS!!!!!!!!!!!!!!!!!
Answer:
Side length = 5.8 in
Perimeter = 29
Area = 58 in²
Step-by-step explanation:
✔️Find Side length using trigonometric ratio:
Angle at center of a pentagon is always 36° (we have measure of a full circle, 360, divided by 10 smaller triangles = 36°)
So:
Reference angle = 36°
Adjacent side = 4 in.
Opp = ½ of the side length of the polygon = x (let's represent this as x)
Thus, apply TOA:
Tan 36 = Opp/Adj
Tan 36 = x/4
4*Tan 36 = x
x ≈ 2.9 in (nearest tenth)
Side length = 2*x = 2*2.9 = 5.8 in
✔️Perimeter = 5*side length
Perimeter = 5*5.8 = 29 in
✔️Area = ½aP
Where,
a = 4 in
P = 29
Plug in the values
A = ½*4*29
A = 58 in²
COME ON LASTTT ONESSSSSSSSSSSSSSS
Answer:
Answer
Correct option is
D
all of the above
For any two rational numbers a and b,
(a+b),(a−b),(b−a) & (a×b) are all rational numbers.
Thus, rational numbers are closed under addition, subtraction and multiplication.(for the first one)
Answer:
The sum of x and y is a rational number
Step-by-step explanation:
X+Y or 5+7=12
A rational number is any number that can be divided without going on and on forever. ( for the 2nd one)
How Roses Got Their Thorns.
Many years ago ,in the land of Lucia, there was a beautiful queen named —————. Queen —————lived in a century old castle surrounded by a forest on the north side,a maze on the east side, a fountain on the west side and a rose garden on the south side. Her private living quarters had a large window facing the south. Each morning she would start her day by opening her window to the sweet aroma coming from her rose garden. She had a special servant whose only job was to care for her roses. Queen ———- rose garden was her favorite place and every day she would spend time there relaxing and caring for her lovely blooms. Her garden was world famous and people came from miles around to visit and enjoy their beauty and lovely fragrance.
One day she notice there were fewer blooms than usual and she became concerned. She thought her servant was not doing his job,so she obtained a new gardener. The blooms continued to disappear and then she noticed that plants were starting to disappear. Finally, she had some of her servants start guarding the roses. They discovered that the visitors were picking and digging up her roses. She loved sharing the beauty of her garden with her subjects but she had to find a way to protect her roses . Several attempts were tried to protect the. She had a fence built,but the people knocked it down. She had a wall built but they climbed over it. She put guards around but the guards could not be everywhere and the people continued to take her roses . Finally, she sought the advice the local wizard . His solution was to put a curse on the roses. Queen———-agreed to a curse as long as it did not affect the aroma or the beauty of them Beginning that day the loveliest of flowers started growing thorns and still do. P
Answer:
Queen Marie Antoinette
 ?!!!!!!!!!!!!!!!!!!!!!!!
Help please, i give brainlist
5th grade math. correct answer will be marked brainliest
Answer:
70/9
Step-by-step explanation:
You can rewrite 8 pounds as 72/9.
Take away 2/9 and you are left with 70/9.
Answer:
[tex]\frac{2}{9} x \frac{8}{1} = \frac{16}{9} = 1 \frac{7}{9}[/tex]
Please help me with this it was due yesterday.
Answer:
domain= infinity on both sides. range= -3<y<infinity
Step-by-step explanation:
hope this helps
Have a nice day :)
Van kept track of the number of hours that he spent at the
pool each week for several weeks. He spent 6, 2, 6, 3, and
3 hours.
What is the mean number of hours that Van spent at the pool each week?
A. 20 hours
B. 4 hours
C. 3 hours
D. 5 hours
Answer:
B. 4 hours
Step-by-step explanation:
add every number up
6+2+6+3+3= 20
then divide by the number of numbers you used to add with.
20÷5=4
4 hours