ABCD is a square of side length 15cm. APC and AQC are arcs of the circles with centres D and B. Calculate the area of the unshaded part?
Answers
The area of the shadedregion is 96.75 cm².
What is a square?
A square is a two-dimensional figure that has four sides and all four sides are equal.
The area of a square is side²
We have,
Square:
Side = 15 cm
Area of a circle = πr²
APC and AQC are arcs of the circles with centers D and B.
If we remove 1/4 of the area of the circle from the circle we get one part of the unshaded region.
There are two similar unshaded parts.
Now,
The area of the unshaded part.
= 2 (side² - (1/4)πr²)
= 2 (15² - 1/4 x 3.14 x 15²)
= 2 x 15² (1 - 0.785)
= 2 x 225 x 0.215
= 96.75 cm²
Thus,
The area of the shadedregion is 96.75 cm².
Learn more about squares here:
#SPJ2
the area of the unshaded part is composed of 2 equal parts
Area of the square(side a) : a²
Area of the 1/4 cercle: πa²/2
the area of the unshaded part: 2*(a²-πa²/4)=a²/2 * (4-π) with a=15
Area=96,5708... (cm²)
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one quadratic graph opening down and one quadratic graph opening up. They intersect at 1, negative 1 and negative 1, negative 1.
one quadratic graph opening up and one quadratic graph opening down. They intersect at 0, negative 3.
two quadratic graphs opening up. They intersect at 0, negative 3.
quadratic graph opening up and quadratic graph opening down. They intersect at 1, 2 and negative 1, 2
Answers
Answer:
one quadratic graph opening down and one quadratic graph opening up. They intersect at 1, negative 1 and negative 1, negative 1
i.e. they intersect at (1,-1) and (-1,-1)
Step-by-step explanation:
We are asked to find which graph correctly solves the system of quadratic equations:
and
on solving the equation by the method of substitution i.e. on equating both the equations we get:
Now on putting the value of x in any of the equations we get the value of y as:
Hence, the point of intersections of both the graph is:
(1,-1) and (-1,1).
Also the graph of the quadratic equation:
opens upward.
and graph of the quadratic equation:
opens downward.
answer A is True, others are false
THIS IS DUE IN 10 MIN
Answers
Answer:
23.2/20
Step-by-step explanation:
i looked it up
Answers
B: 3 C:All real numbers
D:No solution
Answers
Answer:
The answer is C:All real solutions
Step-by-step explanation:
here are the steps in case u need them :)
Step 1: Simplify both sides of the equation.
−2(x+3)=−2x−6
(−2)(x)+(−2)(3)=−2x+−6(Distribute)
−2x+−6=−2x+−6
−2x−6=−2x−6
Step 2: Add 2x to both sides.
−2x−6+2x=−2x−6+2x
−6=−6
Step 3: Add 6 to both sides.
−6+6=−6+6
0=0
Answer:
C: All real numbers.
Step-by-step explanation:
-2 ( x + 3 ) = -2x -6
-2 times x, -2 times 3
-2x -6 = -2x -6
Add 6
-2x -6 +6 = -2x -6 +6
-2x = -2x
same as....
0 = 0
Answers
Answer:
Theyre all correct
Step-by-step explanation: