3 years ago

Is the answer C or D? Please explain as well so I can understand

Mathematics

1 answer:

OlgaM077 [116]3 years ago

8 0

Answer:

Step-by-step explanation:

i think it's correct and helping you

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rodikova [14]

You need to expand (4x-7)(x+3), multiplying each term in the first bracket by each term in the second bracket, in order to get 4x^2+5x-21. Hope that helps!

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3 years ago

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What is Lim x → ∞ cos (x) ?

Sergeu [11.5K]

Answer:

non existent

Step-by-step explanation:

Hello, please consider the following.

$\forall \ n \in \mathbb{N}\\\\cos((2n+1)\pi)=0\\\\cos(2n\pi)=1\\\\\text{So, there is no limit possible for } x \rightarrow +\infty$

Thank you.

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3 years ago

Kodiak is riding her skateboard down a hill. What is the slope? Please help asap

Westkost [7]

Answer:

Slope = 1/20

Step-by-step explanation:

Because every 1 second, she goes down 20 feet.

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3 years ago

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Please select the best answer from the choices provided T F

bogdanovich [222]

Answer:

Step-by-step explanation:

The ordered pair (-2,-1) can also be represented by (x,y). To check the inequality we can substitute the values into the given inequality.

$y>-\sqrt{x+11+1}$

$-1>-\sqrt{-2+11+1}$

$-1>-\sqrt{10}$

$-1>-3.1622$

After substituting the values, we then have a clear view that -1 is Greater than -3.1622.

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3 years ago

Emma bystaxx that cost $8.48 she pays with a $10 bill how much change or does she get

IRISSAK [1]

Answer:

She will get 1.52 back in change

Step-by-step explanation:

We need to subtract the amount of the purchase from the 10 dollars

I like to line it up vertically.

10.00

- 8.48

-------------

We need to borrow

9. 100

- 8. 48

-------------

And borrow again

9.9 10

- 8.4 8

-------------

1 . 5 2

She will get 1.52 back in change

6 0

3 years ago