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3 years ago

8c +1-(2c-11) 11. 4c+9=

Mathematics

1 answer:

PIT_PIT [208]3 years ago

5 0

8c. 1 - 2c + 11
-2c + (1+11)
-2c + 12

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the probability that we encounter a green light at the corner of college and main is 0.35, a yellow light 0.04, and a red light

Ostrovityanka [42]

Answer:

21% probability you will hit a green light on monday and a red light on tuesday

Step-by-step explanation:

When two events, A and B, are independent, we have that:

$P(A \cap B) = P(A) \times P(B)$

In this problem, we have that:

Event A: Green light on monday.

Event B: Red light on tuesday.

The probability that we encounter a green light at the corner of college and main is 0.35

This means that $P(A) = 0.35$

The probability that we encounter a red light is 0.61:

This means that $P(B) = 0.61$

These events are independent, that is, the light color on Tuesday is independent of the color on Monday. So

$P(A \cap B) = P(A) \times P(B) = 0.35 \times 0.6 = 0.21$

21% probability you will hit a green light on monday and a red light on tuesday

8 0

3 years ago

Who ever makes polnareff there profile pic is my new friend DONT JUST ANSWER SOMETHING DUM LIKE I DONT KNOW WHO THAT IS OR OK OR

inysia [295]

Step-by-step explanation:

Explain how the author supports the argument that banning plastic bags in favor of paper ones is not a good solution to the problem of waste.

Use details from the article to support your response

7 0

3 years ago

Can u answer 21-25 please?

Mila [183]

21-25 is -4. Is this helpful?

8 0

3 years ago

I don't need you to work it out, just theorem(s) i need to reach the answer :)

VikaD [51]

Not sure why such an old question is showing up on my feed...

Anyway, let $x=\tan^{-1}\dfrac43$ and $y=\sin^{-1}\dfrac35$ . Then we want to find the exact value of $\cos(x-y)$ .

Use the angle difference identity:

$\cos(x-y)=\cos x\cos y+\sin x\sin y$

and right away we find $\sin y=\dfrac35$ . By the Pythagorean theorem, we also find $\cos y=\dfrac45$ . (Actually, this could potentially be negative, but let's assume all angles are in the first quadrant for convenience.)

Meanwhile, if $\tan x=\dfrac43$ , then (by Pythagorean theorem) $\sec x=\dfrac53$ , so $\cos x=\dfrac35$ . And from this, $\sin x=\dfrac45$ .

So,

$\cos\left(\tan^{-1}\dfrac43-\sin^{-1}\dfrac35\right)=\dfrac35\cdot\dfrac45+\dfrac45\cdot\dfrac35=\dfrac{24}{25}$

7 0

4 years ago

(x^2+8x+16)-1-16<br><br> what is the vertex form

Colt1911 [192]

Answer:

Use photo math, it will explain it all in different forms

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3 years ago