2 years ago

HELP HELP HELP!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

bagirrra123 [75]2 years ago

4 0

A, C, and D
Hope this helps :)
Can I have brainliest

bonufazy [111]2 years ago

3 0

Answer: A,C,D

Set by step explanation:

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I need help it's geometry

nekit [7.7K]

Step-by-step explanation:

$\sin(45) = \frac{x}{5} \\ \frac{1}{ \sqrt{2} } = \frac{x}{5} \\ x = \frac{5}{ \sqrt{2} } = 3.535$

$\sin(45) = \frac{y}{5} \\ y = \frac{5}{ \sqrt{2} } = 3.535$

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2 years ago

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Three-quarters of a number is 15. Work out four-fifths of the number.

azamat

Answer:

Step-by-step explanation:

let the number be x , then

$\frac{3}{4}$ x = 15 ( multiply both sides by 4 to clear the fraction )

3x = 60 ( divide both sides by 3 )

x = 20 , then

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2 years ago

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What is the answer to this calculus problem??? <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bd%7D%7Bdx%7D%20%28e%20%7B%7D%5E

Len [333]

Answer:

see explanation

Step-by-step explanation:

Differentiate using the product rule

Given y = f(x)g(x), then

$\frac{dy}{dx}$ = f(x). g'(x) + g(x). f'(x)

here f(x) = $e^{x}$ ⇒ f'(x) = $e^{x}$

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Hence

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= $e^{x}$ cosx - $e^{x}$ sinx

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2 years ago

Explain how you know that x^2-8x+20 is always positive. Please help.

IRISSAK [1]

Answer:

if you rearrange to complete the square, you get (x^2-4)^2 +4

and seeing as anything squared will always be positive or zero, the lowest possible value for (x^2-4)^2 is 0, when x = 4

and 0 + 4 = 4, which is greater than 0, so positive

Step-by-step explanation:

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3 years ago

Evaluate each expression. log327 = log121 = logo 25 = log, 128 =

qwelly [4]

Part 1:
3,0,-2,7
Part 2:
A,C,D

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3 years ago