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Tasya [4]
3 years ago
5

How do you do 8b+12-b=8+7b+4 and plz show how you got it

Mathematics
1 answer:
lawyer [7]3 years ago
6 0
8b+12-b=8+7b+4
7b+12=12+7b
                 -7b
7b-7b+12=12
          -12   -12
0= 12-12
0=0
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Help me..it has to be rounded to the tenths
klio [65]

Answer:

10.2 cm²

Step-by-step explanation:

The area (A) of a regular hexagon is

A = \frac{1}{2} × perimeter × apothem

Perimeter = 6 × 2 = 12 cm ( hexagon has 6 sides ), hence

A = 0.5 × 12 × 1.7 = 6 × 1.7 = 10.2 cm²

7 0
3 years ago
Read 2 more answers
When dividing with polynomials, the goal is to determine how many times the dividend divides evenly into the?
kkurt [141]
Whether dividing constant terms or polynomials, we always have definitive terms when it comes to division. Suppose we say, 10x divided by 2. The dividend is the 10x and the divisor is the 2. In other words, the dividend is the number to be divided by the divisor, to obtain the answer called the quotient.

When dividing polynomials, your main goal is to be able to divide the dividend evenly into the <em>divisor</em>. For example, we divide x²+2x+1 by x+1. The first thing you're going to focus is, what term will completely divide the first term of the polynomial? That would be x. Why? Because when you multiply x with x+1, the product is x²+x. When you subtract this from the polynomial, the x² will cancel out. All you have to do is subtract x from 2x, yielding x. Then, you carry down the last term of the equation: +1. You do the steps again. The term that will completely divide x+1 by x+1 is 1. When you subtract the two, you will come up with zero. That means there is no remainder. The polynomial is divisible by the divisor. 
                          x + 1
                        ------------------------------------
                  x+1| x²+2x+1
                        - x²+x
                         ----------------------
                                 x +1
                               - x + 
                             ------------
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5 0
3 years ago
Use the slope formula to find the missing coordinate: R(0,_), S(-4,2) m=5
Delicious77 [7]

Answer

The missing value is 22

step-by-step explanation

The slope formula is

m =  \frac{y_2 - y_1}{x_2 - x_1}

From the question,

m=5

x_2=-4

y_2=2

and

x_1=0

We substitute these values to get,

5=  \frac{2 - y_1}{ - 4- 0}

Simplify

5=  \frac{2 - y_1}{ - 4}

5 \times  - 4=2 - y_1

- 20=2 - y_1

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22= y_1

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The missing value is 22

5 0
3 years ago
16. Find the length of x.
otez555 [7]

Answer:

Step-by-step explanation:

If two chords intersect inside a circle, then

DE * BE =AE * CE

10*x = 8*6

 10x = 48

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7 0
2 years ago
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If f(x) = x^2 - 3x + 1 over 2, determine f ( 4 ) .
svet-max [94.6K]
F(x)=x^2-3x+1/2, if f(4)
Substitute x with 4, to get
f(x)=x^2-3x+1/2
f(4)=4^2-3(4)+1/2
f(4)=16-12+1/2
f(4)=4+1/2
f(4)=4 1/2 or 4.5. Hope it help!
7 0
3 years ago
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