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3 years ago

Where did b2 come from in Pythagorean theorem

Mathematics

1 answer:

Debora [2.8K]3 years ago

8 0

Answer:

It stands for b squared it’s the second number of the equation that is given to you.

Step-by-step explanation:

Example : 5-7+ 8

-7 would be you b squared hope this helped :D

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With a detailed explanation from the internet 1/(x-5)+3/(x+2)=4

irga5000 [103]

Answer:

$\boxed{ \sf x=\dfrac{4\pm\sqrt{43}}{2}}$

Explanation:

$\rightarrow \sf \dfrac{1}{x-5}+\dfrac{3}{x+2}=4$

make the denominators same

$\rightarrow \sf \dfrac{1(x+2)}{(x-5)(x+2)}+\dfrac{3(x-5)}{(x+2)(x-5)}=4$

join the fractions together

$\rightarrow \sf \dfrac{x+2+3x-15}{(x-5)(x+2)}=4$

cross multiply

$\rightarrow \sf x+2+3x-15=4(x-5)(x+2)$

simplify

$\rightarrow \sf 4x-13=4x^2-12x-40$

group the variables

$\rightarrow \sf 4x^2-16x-27 = 0$

use quadratic formula

$\rightarrow \sf x = \dfrac{-\left(-16\right)\pm \sqrt{\left(-16\right)^2-4\cdot \:4\left(-27\right)}}{2\cdot \:4}$

simplify the following

$\rightarrow \sf x=\dfrac{4\pm\sqrt{43}}{2}$

7 0

2 years ago

Read 2 more answers

Emily has a road map with a key that shows an inch on the map equals 5 miles of actual distance.if a distance measured on the ma

Pie

12 * 5 is 60.
Actual distance: 60 miles.

6 0

4 years ago

3.75 yards equals how many inches

Triss [41]

133.2 inches are in 3.75 yards

3 0

3 years ago

Read 2 more answers

In 2003, a school population was 903. By 2007 the population had grown to 1311. How much did the population grow between the yea

blsea [12.9K]

Answer:

The average population growth per year is 102.

Step-by-step explanation:

From the given data, we can find the slope which will give us the average rate of change. Our points are:

$(2003, 903)\quad and \quad (2007, 1311)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}=\frac{1311-903}{2007-2003}\\\\m=102$

Best Regards!

8 0

3 years ago

You spin a spinner divided into 6 equal sections and then flip a coin. if the spinner lands on 8, what is the probability that t

Alecsey [184]

Answer:

1/2(i think)

Step-by-step explanation:

since a coin has two sides

the denominator would be 2

since the coin has 1 chance of it landing on heads and 1 chance of it landing on 2

the probability the coin will land on heads is 1/2

hope this helps!

4 0

4 years ago