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3 years ago

A and b are positive integers and a-b=2 ... Evaluate the following:

Mathematics

1 answer:

zalisa [80]3 years ago

6 0

Answer:

1/9

Step-by-step explanation:

after simplifying you will get 3^b-a. if a-b =2, b-a=-2. 3^-2=1/9

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Help help help help pls

Yanka [14]

Answer:

x - 3 > 10

Step-by-step explanation:

3 0

3 years ago

Ernie bought three 12-packs of regular cola, four 12-packs of diet cola, and two 6-packs of orange soda. How many cans did he bu

Liono4ka [1.6K]

Answer:

Ernie bought 96 can of soda

Step-by-step explanation:

7 0

2 years ago

Ashley wants to pour 15.82 grams of salt into a container. So far, she has poured 13.87 grams. How much more salt should Ashley

erik [133]

Answer:

1.95

Step-by-step explanation:

Basically, you subtract: 5.82 - 13.87 = 1.95

Then, see: 15.82 - 1.950 = 13.87

Then you have your answer :D

Ashley has to pour 1.95 more grams of salt.

Brainliest, please??? :>

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2 years ago

Read 2 more answers

Explain why sin^-1(sin(3pi/4))does not equal 3pi/4 when y=sin x and y=sin^-1 x are inverses.

Fofino [41]

Because they're not inverses, not exactly. $\sin x$ is not invertible on its entire domain because it's not one-to-one. There are infinitely many values of $x$ such that $\sin x=0$ , for example.

The standard function $\sin^{-1}x$ has a domain of $-1\le x\le1$ and outputs values between $-\dfrac\pi2$ and $\dfrac\pi2$ . This means that its inverse, $\sin x$ , is indeed its inverse as long as $-\dfrac\pi2\le x\le\dfrac\pi2$ .

$\dfrac{3\pi}4$ is larger than $\dfrac\pi2$ and thus does not fall in the "invertible part" of the domain of $\sin x$ . We have

$\sin\dfrac{3\pi}4=\dfrac1{\sqrt2}$

which is a value between -1 and 1, so that

$\sin^{-1}\left(\sin\dfrac{3\pi}4\right)=\sin^{-1}\left(\dfrac1{\sqrt2}\right)=\dfrac\pi4$

If we wanted to recover $\dfrac{3\pi}4$ , we'd have to redefine $\sin^{-1}x$ or define a new inverse function that works on a different branch of the domain of $\sin x$ .

7 0

3 years ago

Use the distributive property to write two different expressions equal to 96.

Andre45 [30]

Answer:

96 = 3 * 32, and 32 = 16 + 16, so we can say:

96 = 3(16 + 16)

96 is also equal to 2 * 48, and 48 equals 36 + 12, so we can also say:

96 = 2(36 + 12)

If you want to go with the ridiculous, you have an infinite number of combinations you could do like that. For example:

96 = 0.15(1423987123497 - 1423987122857)

8 0

2 years ago