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2 years ago

PLEASE HELP ME!!!! I NEED THE HELP!!

Mathematics

2 answers:

qaws [65]2 years ago

7 0

Answer:

i think its the 2nd one hope this help also can i have brainliest.

Step-by-step explanation:

makvit [3.9K]2 years ago

4 0

Answer:

try D it seems right to me

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Add: 3x(x-y+z) and 2y (x+y-z)

hodyreva [135]

Answer:

3x^2 + 3xz + 2y^2 - 2yz - xy

Step-by-step explanation:

(1) multiply it to get

3x^2 - 3xy + 3xz and 2yx + 2y^2 - 2yz

add similar variables (-3xy + 2yx)

( the order of the variables doesn't matter xy or yx is the same)

we get -xy

and then after that simplifying we get 3x^2 + 3xz + 2y^2 - 2yz - xy

3 0

3 years ago

Read 2 more answers

There are 4 red marbles, 2 white marbles, and 2 black marbles in a bag. Consider the following compound events. What is the prob

sleet_krkn [62]

Answer:

Step-by-step explanation:

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6 0

2 years ago

At a pet store, there are 30 aquariums.

irakobra [83]

Answer:

f = (20 × 15) + (10 × 6)

Explanation:

You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.

8 0

3 years ago

Graph y=sin^-1 (1/4 x) on the interval -5≤x≤5.

GaryK [48]

Answer:

Step-by-step explanation:

The arcsine ( $\sin^{-1}$ ) function of x is defined as the inverse sine function of x when -1≤x≤1.

So, when

$-4\le x\le 4,$

we have that

$-1\le \dfrac{1}{4}x\le 1.$

This gives us the domain $-4\le x\le 4$ of the function $y=\sin^{-1}\left(\dfrac{1}{4}x\right).$

The range of the function $y=\sin^{-1}x$ is $-\dfrac{\pi }{2}\le x\le \dfrac{\pi }{2},$ so the range of the function $y=\sin^{-1}\left(\dfrac{1}{4}x\right)$ is the same (options A and C are false).