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3 years ago

A=2BD+2BC solve for B

Mathematics

2 answers:

Genrish500 [490]3 years ago

7 0

Answer:

$B=\frac{A}{2(C+D)}$

Step-by-step explanation:

$A=2BD+2BC$

We can also write this by taking out 2B common:

$A=2B(C+D)$

Dividing both sides by C+D;

=> $2B=\frac{A}{C+D}$

Dividing both sides by 2;

=> $B=\frac{A}{2(C+D)}$

Hence, the value of B is :

$B=\frac{A}{2(C+D)}$

Butoxors [25]3 years ago

6 0

Try two. I'm not sure what the answer is

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How to figure it out

ElenaW [278]

Im not 100% sure but
A: 10
B: 5
C: 15
D: 30
for:
A: 30 x 1/3
B: 15 x 1/3
C: 5/ 1/3
D: 10/ 1/3

5 0

3 years ago

Read 2 more answers

Please help.

serious [3.7K]

The number of throws that the player make X follows binomial distribution.

The probability that the player makes x throws out of eleven throws is

$P(X=x)=C(x,11)0.5^x(0.5)^{11-x}=C(x,11)0.5^{11}$

The probability that the player makes at most nine out of eleven free throws

$\sum_{x=0}^9C(x,11)0.5^{11}=1-\sum_{x=10}^{11}C(x,11)0.5^{11}\\ =1-C(10,11)0.5^{11}-C(11,11)0.5^{11}=1-\frac{12}{2^{11}} \\ =1-\frac{3}{512} =\frac{509}{512}$

Correct choice is (B).

8 0

3 years ago

Use the properties of logarithms to expand the following expression as much as possible. Simplify any numerical expressions that

sweet [91]

Answer:

$f(x,y) = \log_{4} (x-5-\sqrt{25-6\cdot y})+\log_{4} (x-5+\sqrt{25-6\cdot y})$

Step-by-step explanation:

Let be $f(x,y) = \log_{4}(2\cdot x^{2}-20\cdot x +12\cdot y)$ , this expression is simplified by algebraic and trascendental means. As first step, the second order polynomial is simplified. Its roots are determined by the Quadratic Formula, that is to say:

$r_{1,2} = \frac{20\pm \sqrt{(-20)^{2}-4\cdot (2)\cdot (12\cdot y)}}{2\cdot (2)}$

$r_{1,2} = 5\pm \sqrt{25-6\cdot y}$

The polynomial in factorized form is:

$(x-5-\sqrt{25-6\cdot y})\cdot (x-5+\sqrt{25-6\cdot y})$

The function can be rewritten and simplified as follows:

$f(x,y) = \log_{4} [(x-5-\sqrt{25-6\cdot y})\cdot (x-5+\sqrt{25-6\cdot y})]$

$f(x,y) = \log_{4} (x-5-\sqrt{25-6\cdot y})+\log_{4} (x-5+\sqrt{25-6\cdot y})$

3 0

3 years ago

A stone fell from the top of a cliff into the ocean.

Mice21 [21]

Answer:

It was in the watwr for 6 seconds and out for 6 seconds

Step-by-step explanation:

4 0

3 years ago

I need some help, sooooo... please?

Ivan

<h3>Answer: x+3</h3>

==============================================================

Explanation:

Use a graphing tool like Desmos to plot y = |x+3|

See below.

The graph is a V shaped figure. The vertex is at (-3,0). The interval x > 5 is entirely to the right of this vertex. So we only focus on the right hand side of the V shape.

The line making up this right hand side is the equation y = x+3

Therefore, if x > 5 then y = |x+3| becomes y = x+3

In short, we erase the absolute value lines.

3 0

2 years ago

Read 2 more answers