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3 years ago

PLEASE HELP IN ONE MINUTE WILL MARK BRAINLIST

Mathematics

2 answers:

Naya [18.7K]3 years ago

8 0

Answer:

c i think

Step-by-step explanation:

Arte-miy333 [17]3 years ago

6 0

Answer:

B or C I think

Step-by-step explanation:

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Answer:

75 kilómetros por hora creo no estoy muy seguro

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2 years ago

What is the solution to b/9 = -7

bonufazy [111]

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3 years ago

Read 2 more answers

HELPS PLEASE! i need help

wlad13 [49]

Answer:

They paid $67.45 altogether.

Step-by-step explanation:

First off, we need to set up the problem, I like to do percentage problems like this:

x/58.65 = 15/100

Cross Multiply

100x=58.65x15

When you multiply 58.65 and 15 you get 879.75

Divide

Now we have to divide 879.75 by 100 because 100x=879.75

879.75 divided by 100 is 8.80

So now we know that they paid $8.80 just for the tip.

Add

Now all we have to do is add 8.80 to 58.65

58.65 plus 8.80 is 67.45

The Kerwoods paid $67.45 altogether.

7 0

3 years ago

Grayson is going to invest $710 and leave it in an account for 17 years. Assuming the interest is compounded continuously, what

yulyashka [42]

Answer:

1,3%

Step-by-step explanation:

$x^{20} * 710 = 920\\x^{20} = 1.3\\x = 1.013$

4 0

3 years ago

F(x)= (5x/sinx) - 3xsinx Solve for dy/dx at x = Pi over 2

gogolik [260]

Answer:

$(\frac{dy}{dx})x_{= \frac{\pi }{2} } = f^{1} (\frac{\pi }{2} ) =2$

Step-by-step explanation:

Step(i):-

Given that

$f(x) = \frac{5x}{sinx} -3xsinx$

Apply (UV )¹ = UV¹+VU¹

$\frac{d}{dx} (\frac{U}{V} ) = \frac{V U^{l} -VU^{l} }{V^{2} }$

Step(ii):-

$f^{1} (x) = 5\frac{sin x(1)-x(cos x)}{sin^{2}x } - 3(x cos x + sin x(1))$

put $x = \frac{\pi }{2}$

$f^{1} (\frac{\pi }{2} ) = 5\frac{sin \frac{\pi }{2} (1)-\frac{\pi }{2} (cos \frac{\pi }{2} )}{sin^{2}(\frac{\pi }{2} ) } - 3(\frac{\pi }{2} cos \frac{\pi }{2} + sin(\frac{\pi }{2}) (1))$

we know that

$cos(\frac{\pi }{2}) = 0$

$sin(\frac{\pi }{2} ) = 1$

$f^{l} (\frac{\pi }{2} ) = \frac{5(1-0)}{1} -3(0+1)$

$f^{1} (\frac{\pi }{2} ) = 5-3 =2$

Final answer:-

$(\frac{dy}{dx})x_{= \frac{\pi }{2} } = f^{1} (\frac{\pi }{2} ) =2$

6 0

3 years ago