3 years ago

El teorema del coseno enuncia que

1 answer:

8 0

Answer:

La regla del coseno establece que el cuadrado de la longitud de cualquier lado de un triángulo es igual a la suma de los cuadrados de la longitud de los otros lados menos el doble de su producto multiplicado por el coseno de su ángulo incluido.

Step-by-step explanation:

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Which expressions are equivalent to -3(2+7) A: -6+21 or B:-21+6

Neporo4naja [7]

Answer:

None

Explanation:

-3(2+7) = -3×9 = -27

-6+21 = 15

-21+6 = -15

Hence there is no equivalence

3 0

3 years ago

Can anyone solve this ?

enot [183]

Is e just an algebraic expression or is it Euler's number (2.718...)?

If e is an algebraic expression then there it is

6 0

3 years ago

Find two matrices A and B such that 2A-3B= [5 0

amm1812

The easy answer: If, say, B is the zero matrix, i.e.

$B=\begin{bmatrix}0&0\\0&0\end{bmatrix}$

then

$2A=\begin{bmatrix}5&0\\-1&2\end{bmatrix}\implies A=\begin{bmatrix}\dfrac52&0\\\\-\dfrac12&1\end{bmatrix}$

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3 years ago

How to solve -9x-4-8+7x=10

inna [77]

Answer:

x=-11

Step-by-step explanation:

-9x-4-8+7x=10

-2x-12=10

+12 +12

-2x=22

-2x/-2=22/-2

x=-11

8 0

3 years ago

Read 2 more answers

What is answer to the question

kap26 [50]

Answer:

V = 825

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

The radius is 1/2 d = 1/2 (10) =5

Using 3 for pi

V = 3 ( 5)^2 * 11

V = 825

7 0

3 years ago