All categories

3 years ago

Can somebody please help me ‼️‼️‼️

Mathematics

1 answer:

borishaifa [10]3 years ago

3 0

I think it’s C merry Christmas

You might be interested in

Michelle flips a penny four times, and it lands heads up all four times. On her fifth flip, what is the probability that the pen

snow_tiger [21]

Answer:

1/2

Step-by-step explanation:

theoretical probability of a coin flip is always 50% heads, 50% tails

8 0

2 years ago

Un tubo puede contener 35 l de agua por metro si mide 97 metros ¿Cuanto pesara el agua que contiene al es lleno

Mariana [72]

Respuesta:

3395 L

Explicación paso a paso:

Dado que el tubo contiene 35 L de agua por metro.

Esto significa que el volumen por metro del tubo es de 35 litros.

Longitud total del tubo = 97 metros

Volumen de agua en toda la longitud del tubo:

Volumen por metro * 97

35 L * 97

= 3395 litros

Por lo tanto, peso cuando está lleno = 3395 L

5 0

2 years ago

A board 8 ft long is cut into three equals pieces. How long are the pieces?

san4es73 [151]

Answer:

Step-by-step explanation:

5 0

3 years ago

16) Please help with question. WILL MARK BRAINLIEST + 10 POINTS.

Katyanochek1 [597]

We will use the sine and cosine of the sum of two angles, the sine and consine of $\frac{\pi}{2}$ , and the relation of the tangent with the sine and cosine:

$\sin (\alpha+\beta)=\sin \alpha\cdot\cos\beta + \cos\alpha\cdot\sin\beta

\cos(\alpha+\beta)=\cos\alpha\cdot\cos\beta-\sin\alpha\cdot\sin\beta$

$\sin\dfrac{\pi}{2}=1,\ \cos\dfrac{\pi}{2}=0$

$\tan\alpha = \dfrac{\sin\alpha}{\cos\alpha}$

If you use those identities, for $\alpha=x,\ \beta=\dfrac{\pi}{2}$ , you get:

$\sin\left(x+\dfrac{\pi}{2}\right) = \sin x\cdot\cos\dfrac{\pi}{2} + \cos x\cdot\sin\dfrac{\pi}{2} = \sin x\cdot0 + \cos x \cdot 1 = \cos x$

$\cos\left(x+\dfrac{\pi}{2}\right) = \cos x \cdot \cos\dfrac{\pi}{2} - \sin x\cdot\sin\dfrac{\pi}{2} = \cos x \cdot 0 - \sin x \cdot 1 = -\sin x$

Hence:

$\tan \left(x+\dfrac{\pi}{2}\right) = \dfrac{\sin\left(x+\dfrac{\pi}{2}\right)}{\cos\left(x+\dfrac{\pi}{2}\right)} = \dfrac{\cos x}{-\sin x} = -\cot x$

3 0

3 years ago

Can u answer pls I will give brainliest

Lelu [443]

Answer:

Question 1: y-11x+5 I think; Question 2: I'm not sure

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers