Find the Area of a circle if the radius is 5.2 cm. AGAIN: State the CORRECT formula, show the substitution and state your answer with the correct label.
Answers
Answer:
area A= πr2
A=π×5.22
A=27.04π
A=84.9486654
I hope this is good enough
Related Questions
I need help on number 28 teacher just gave hw without explanation
Please answer asap question in attached file
The population of a town grows exponentially. After 1 year, the population is 34,560. After 2 years, the population is 37,325. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)
Five cakes cost 4.00 how much do 7 cost
9x + 2y = -38
9x+10y=26.
Answers
Final answer:
The system of equations can be solved using the method of elimination. The solution is x = -6 and y = 8.
Explanation:
To solve this system of equations, we can use the method of elimination. First, we'll multiply the first equation by 10 and the second equation by 2 to make the coefficients of x the same. This gives us:
- 90x + 20y = -380
- 18x + 20y = 52
Now, we can subtract the second equation from the first to eliminate y:
72x = -432
Dividing both sides by 72, we find x = -6.
Substituting this value of x into one of the original equations, we can solve for y:
9(-6) + 2y = -38
Simplifying, we get -54 + 2y = -38
Adding 54 to both sides, we have 2y = 16
Dividing both sides by 2, we find y = 8.
Learn more about Solving systems of equations here:
#SPJ3
Answer:
(-6 , 8 )
Hope this helps!
Answers
1. Write the formula
tan(a) = y ÷ x
2. Rewrite to include the known values.
tan(79.9) = y ÷ 100
3. Solve for the unknown variable, y.
tan(79.9) × 100 = y ÷ 100 × 100
tan(79.9) × 100 = y
4. A fancy step that I call the "flip flop."
y = tan(79.9) × 100
5. Use a calculator to find the value (make sure the calculator is in "degree" and not "radians" mode).
y = 561.3968
6. Round the number as is appropriate for this problem.
Have a great day!
so you have a right triangle
base=100 ft
from wher you are standing, it is a 79.9 angle to the top
we want to find the height of the tower or the opposite side
the base is the adjacent side so you are looking for o/a or tan(79.9) since you know one of the sides so therefor
tan(79.9)=h/100
evaluate tan(79.9)
tan(79.9)=5.61396
5.61396=h/100
multiply both sides by 100
561.396=h
round to tenths place
561.4
the height=561.4 ft
4|x+5| -2 <10
Answers
4 |x + 5| < 12 4(x + 5) - 2 < 10
------------ ----- 4x + 20 - 2 < 10
4 4 4x + 18 < 10
|x + 5| < 3 4x < -8
-x - 5 < 3 ---- ------
-x < 8 4 4
---- --- X < -2
-1 -1
X > -8
-8 < x < -2
Answers
Answer:
option C is correct.
Step-by-step explanation:
Checking equation A
Checking equation B
Checking equation C
Checking equation D
Hence, only option C is correct.
18/24
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18 ÷ 6 = 3
24 ÷ 6 = 4
In simplest form, 18/24 = 3/4
Answers
(y-k)²=4p(x-h)
p is distance from directix to vertex which is also the distance from vertex to focus
if it opens to the right, then p is positive
if it opens to the left, then p is negative
so we know that directix is-8 and focus is (8,0)
directix is behind the parabola
so therfor the parabola opens to the right
distance from x=-8 to (8,0) is 16 units
16/2=8
p=8
vertex is 8 units to right of directix or 8 units to the left of focus
(8,0) is focus so vertex is (0,0)
(h,k) is vertex
(y-k)²=4p(x-h)
(y-0)²=4(16)(x-0)
y²=64x
Answer:
If your on e2020, its C
Step-by-step explanation:
y^2=32x, the work above is correct but they forgot to take the square away in the final answer. hope this helps!