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DanielleElmas [232]

3 years ago

9

Explain why a + b = d.

2 answers:

Fed [463]3 years ago

8 0

Answer: First Of all length high wait

Step-by-step explanation:

Klio2033 [76]3 years ago

7 0

Answer: Ok So A+B=C is an formula

Step-by-step explanation: In mathematics, the Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the sides a, b and c, often called the Pythagorean equation

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zzz [600]

We can solve for the value of x using pythagorean theorem

$c^2=a^2+b^2$

where c is the hypotenuse ( in this case is 15) and a, b are the other legs of the triangle ( in this case is 8 and x).

Let's substitute the given values to the formula

$\begin{gathered} c^2=a^2+b^2 \\ 15^2=8^2+x^2 \\ 225=64+x^2 \\ x^2=225-64 \\ x^2=161 \\ x=12.69 \end{gathered}$

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s2008m [1.1K]

Answer:

where is the rest of the question?

Step-by-step explanation:

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3 years ago

Can someone help will give brainlist

max2010maxim [7]

Answer:

Option B

Step-by-step explanation:

Time taken by Nathan to completethe task = 4 hours

$\text{Work done by Nathan in 1 hour = $\dfrac{x}{4}$}$

Time taken by Elijah to complete the task = 3 hours

$\sf \text{Work done by Elijah in 1 hour=$\dfrac{x}{3}$}$

They work together to complete the work

$\text{Work done by both in 1 hour = $ \dfrac{x}{4}+\dfrac{x}{3}$}$

$\sf =\dfrac{x*3}{4*3}+\dfrac{x*4}{3*4}\\\\=\dfrac{3x}{12}+\dfrac{4x}{12}\\\\=\dfrac{7x}{12}$

$\text{Time taken by both= x $\div$ $\dfrac{7x}{12}$}$

$\sf = x * \dfrac{12}{7x}\\\\ = \dfrac{12}{7}$

≈ 1.7 hours

7 0

2 years ago