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3 years ago

A die is one of a pair of dice.

Mathematics

1 answer:

ladessa [460]3 years ago

6 0

Answer:

B is right a and c are wrong

Step-by-step explanation:

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The streets of millston are laid out like a grid, with each square block being the same size. the distance from the movie theate

Flauer [41]

Answer:

The streets of millston are laid out like a grid, with each square block being the same size. the distance from the movie theater to the restaurant is 1/2 mile along cabot street .If there are exactly 4 blocks between the two locations, how long is each block.

6 0

2 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

3 years ago

On the first day of June, there were about 17.71 h of daylight in a city. Five months later, there were about 5.30 h of daylig

Andru [333]

Answer:

Percentage increases and decreases, are found by setting the problem up proportionally.

You are trying to find what percentage of 17.37 is 8.30 first.

so What %/100 = 8.30/17.37

Now define a variable:

Let x = What%

x/100 = 8.30/17.37

17.37x = 830

x = 830/17.37

x ≈ 47.78

8.30 is approximately 47.78% of 17.37, so the percentage decrease is 100% - 47.78% = 52.22%

The percentage decrease is approximately 52.22%

7 0

3 years ago

X + 76 what does x equal

Anna11 [10]

Answer:

well what's the equation to know what x equals

4 0

2 years ago

Paolo is adding the numbers below. what is the sum written in scientific notation?

jolli1 [7]

Where are your numbers?

8 0

3 years ago