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2 years ago

Suppose that y varies directly with x, and y=24 when x=15.

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

8 0

Answer:

x=0.625y

y=1.6x

y=3.2

Step-by-step explanation:

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I need help on this it’s about trig identities

Cerrena [4.2K]

Answer:

The answer to your question is:

Step-by-step explanation:

1.-

$\frac{1 + sin\alpha }{cos\alpha } + \frac{cos\alpha }{1 + sin\alpha } = 2 sec\alpha$

$\frac{(1 + sin\alpha)^{2} + cos^{2} \alpha }{cos\alpha (1 + sin\alpha) }$

$\frac{1 + 2sin\alpha + sin^{2} \alpha+ cos^{2} \alpha }{cos\alpha + sin\alphacos\alpha }$

$\frac{2 + 2sin\alpha }{cos\alpha+ sin\alpha cos\alpha }$

$\frac{2(1 + sin\alpha) }{cos\alpha(1 + sin\alpha ) }$

$\frac{2}{cos\alpha }$

2sec $\alpha$

2.-

sec²x - tanxsecx

$\frac{1}{cos^{2}x } - \frac{sinx}{cosx} \frac{1}{cosx}$

$\frac{1}{cos^{2} x} - \frac{sinx}{cos^{2}x}$

$\frac{1 - sinx}{cos^{2}x }$

$\frac{1 - sinx}{1 - sin^{2}x }$

$\frac{1 - sinx}{(1 - sinx)(1 + sinx)}$

$\frac{1}{1 + sinx}$

3 0

2 years ago

Free brainliest<br> cuz i'm in a good mood lol

Marianna [84]

Answer:

Thanks!

Step-by-step explanation:

Hey Again hows your day?

6 0

2 years ago

PLEASE HELP FAST!!

sertanlavr [38]

Answer:

104

Step-by-step explanation:

15 x 14= 210 divide by 2

105

180 - 105 = 75

15 + 14 + 75 = 104

5 0

2 years ago

Solve the two-step equation. 14 = 31.7 – 3x

Alinara [238K]

$14 = 31.7- 3x$

$-17.7=-3x$

$x=5.9$

7 0

3 years ago

Read 2 more answers

What is the following sum4/5+2/5

Amiraneli [1.4K]

Answer:

6/5 or 1 1/5

Edit:

soo

$4\sqrt{5} + 2\sqrt{5}$ = $6\sqrt{5}$

since they both are being multipled to the square root of 5, you can just add them (i think)

Step-by-step explanation:

6 times the square root of 5

you add 4 and 2

4 0

2 years ago

Read 2 more answers