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natulia [17]
2 years ago
5

Question in pic help

Mathematics
1 answer:
Liula [17]2 years ago
6 0

Answer:

B

Step-by-step explanation:

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In a circle, a 90° sector has area 16π ft2. What is the radius of the circle?
Veronika [31]
Sector area  = 0.5 * r^2 * angle (in radians)

so:

16 pi = 0.5 * r^2 * (90*pi/180)

r^2 = 16 pi /(0.25 pi) = 64

r = 8


therefore it would be d
7 0
2 years ago
The sum of 3 consecutive integers is 47 more than the first integer. Find the three integers.
ss7ja [257]

Answer:

22,23,24

Step-by-step explanation:

Well, you need to first find two consecutive integers that add up to 47, because that is the difference between the first digit and the total. This happens to be 23 and 24. Once you get these two numbers, the 22 comes intuitively, as you have to add 23 and 24 to get a difference between 22 and (22+23+24).

7 0
2 years ago
F(x) = x5 + 5x4 - 5x3 - 25x2 + 4x + 20
Pie

Answer:

-4(5-x)

Step-by-step explanation:

6 0
2 years ago
Acellus
kkurt [141]

Answer:

do you have any other info

Step-by-step explanation:

8 0
2 years ago
What are the solutions of this system of equations?
SpyIntel [72]

Answer:

Option C is correct.

Step-by-step explanation:

y = x^2-x-3     eq(1)

y = -3x + 5      eq(2)

We can solve by substituting the value of y in eq(2) in the eq(1)

-3x+5 = x^2-x-3

x^2-x+3x-3-5=0

x^2+2x-8=0

Now factorizing the above equation

x^2+4x-2x-8=0

x(x+4)-2(x+4)=0

(x-2)(x+4)=0

(x-2)=0 and (x+4)=0

x=2 and x=-4

Now finding the value of y by placing value of x in the above eq(2)

put x =2

y = -3x + 5

y = -3(2) + 5

y = -6+5

y = -1

Now, put x = -4

y = -3x + 5

y = -3(-4) + 5

y = 12+5

y =17

so, when x=2, y =-1 and x=-4 y=17

(2,-1) and (-4,17) is the solution.

So, Option C is correct.

7 0
3 years ago
Read 2 more answers
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