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3 years ago

Can someone help me? Is it possible that cos⁡(A−B) = cos ⁡A−cos ⁡B? Why or why

Mathematics

1 answer:

Mrrafil [7]3 years ago

7 0

Answer:

Distributive Property.

Step-by-step explanation:

Cos(A-B)= Cos A- Cos B

The variables in the parenthesis gets multiplied into the Cos

Cos A - Cos B

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Si un triángulo tiene una hipotenusa de 15 cm y un cateto que mide 12 cm, ¿cual es la longitud del otro cateto?

BartSMP [9]

Answer:

9cm

Explicación:

El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

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

Donde c es la hipotenusa y a y b son los catetos.

Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

$15^{2} =12^{2} +b^{2}$

Finalmente , debemos resolver la ecuación para b, así que b es igual a :

$225=144+b^{2} \\225-144=144+b^{2} -144\\81=b^{2} \\\sqrt{81} =b\\9=b$

Por lo tanto, la longitud del otro cateto es 9 cm

3 0

3 years ago

What is the multiplicative inverse of 1 over 2

SpyIntel [72]

Answer:

explanation;

it just is

6 0

3 years ago

Read 2 more answers

Write the following in exponential form. 5∙5∙x∙x∙x∙y 5x^2^y2 2^5x^3y 5^2x^3y

GalinKa [24]

Answer:

$5^2x^3y$

Step-by-step explanation:

There are 2 factors of 5, so you have 5^2

There are 3 factors of x, so you have x^3

There is a single y, so you have y

Answer: $5^2x^3y$

5 0

4 years ago

Shrek and Donkey are making parfait for an upcoming party.

Goryan [66]

Answer:

Step-by-step explanation:

They'd only make four from what the example shows; (0.01*2)*2=4

I can see where I might go wrong if Donkey was making the parfaits faster than Shrek?

I don't see what it's trying to get you to do, showing minimal info about it. If you're supposed to see either how fast Shrek can make within an hour, how much time they spent on the 5 parfaits-

6 0

3 years ago

Read 2 more answers

Consider the graph shown.

Butoxors [25]

Answer:

$Slope=\frac{3}{4}$

The equation of line is $y=\frac{3}{4}x+1$ .

Step-by-step explanation:

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the slope of the line is

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

From the given graph it is clear that the line is passes through the points (0,1) and (4,4).

$Slope=\frac{4-1}{4-0}$

$Slope=\frac{3}{4}$

The

The slope intercept form of a line is

$y=mx+b$

where, m is slope and b is y-intercept

The slope of the line is $\frac{3}{4}$ and y-intercept is 1, so the equation of line is

$y=\frac{3}{4}x+1$

Therefore, the equation of line is $y=\frac{3}{4}x+1$ .

4 0

3 years ago