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ELEN [110]
4 years ago
11

Plz anyone answer this i need helppppp!!!!!

Mathematics
1 answer:
natita [175]4 years ago
7 0

Answer:

B

Step-by-step explanation:

The equation for the area of a circle is  (pi)r^2

(pi)r^2 = 153.86

3.14(r^2) = 153.86

r^2 = 49

then sqaure root 49

r = 7

r= radius

the diameter would be 7x2 which equals 14

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DochEvi [55]
(4x28)+64
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176
Rounded to the nearest ten it would be 180
7 0
3 years ago
Help pls
GarryVolchara [31]

Answer:

x^2-6x

Step-by-step explanation:

Let's start by factoring the top, or numerator of the fraction.

x^3-7x^2+6x = x(x^2-7x^2+6) = x((x-6)(x-1))

Now, you can divide this by (x-1):

\dfrac{x((x-6)(x-1))}{(x-1)}=x(x-6)=\boxed{x^2-6x}

6 0
3 years ago
Let A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, and C = {5, 6, 7, 8}. Find each of the following sets. (Enter your answers in set-roster
cluponka [151]

Answer:

(a) {1, 2, 5, 6}

(b) {3, 4, 7, 8}

(c) {1, 2, 3, 4, 5, 6, 7, 8}

(d) {1, 2, 7, 8}

Step-by-step explanation:

Given sets,

A = {1, 2, 3, 4}, B = {3, 4, 5, 6} and C = {5, 6, 7, 8},

(a) Since, A Δ B = (A\B)∪(B\A) = all elements of A\B and B\A

∵ A\B = elements of set A which are not in B

= {1, 2}

And, B\A = {5, 6}

So, A Δ B = {1, 2, 5, 6}

(b) B\C = {3, 4},

C\B = {7, 8}

⇒ B Δ C = (B\C)∪(C\B) = {3, 4, 7, 8}

(c) A\C = {1, 2, 3, 4},

C\A = {5, 6, 7, 8},

⇒ A Δ C = (A\C)∪(C\A) = {1, 2, 3, 4, 5, 6, 7, 8}

(d) (A Δ B)\C = {1, 2}

C\(A Δ B) = {7, 8}

A Δ C = ((A Δ B)\C)∪(C\(A Δ B)) = {1, 2, 7, 8}

7 0
3 years ago
12 5/8 in decimal form
Norma-Jean [14]

The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of service means an increase of $0.50 per hour. So, employees that have been with the company for less than three years can expect to receive an increase of $0.50 per hour. Employees that have been with the company for at least three years, but less than six years can expect an increase of $1.00 per hour. Employees that have been with the company for at six years, but less than nine years, receive an increase of $1.50 per hour. And, employees of at least nine years, but less than twelve years receive an increase of $2.00 per hour.

Choose a function to represent this scenario

5 0
4 years ago
Read 2 more answers
What is 12^(2x-8)=15
IgorLugansk [536]
12(2x - 8) = 15
12(2x) - 12(8) = 15
24x - 96 = 15
<u>      + 96 + 96</u>
       <u>24x</u> = <u>111</u>
        24      24
           x = 4.625
4 0
4 years ago
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