3 years ago

I have no clue how to solve this. Please help!!!

Mathematics

1 answer:

Stels [109]3 years ago

8 0

Answer:

I believe the answer is c

Step-by-step explanation:

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pav-90 [236]

Answer:

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Find a numerical value of one trigonometric function of x for cscx = sinx tanx + cosx

Alex787 [66]

Answer:

Step-by-step explanation:

we have

$cscx = sinx tanx + cosx\\\\\frac{1}{sinx}=sinx.\frac{sinx}{cosx} +cosx\\\\\frac{1}{sinx}.sinx.cosx= sinx.\frac{sinx}{cosx}.sinx.cosx+cosx.sinx.cosx\\ cosx= (sinx)^{3} +sinx.(cosx)^{2} \\cosx= sinx[(sinx)^{2}+(cosx)^{2})\\ cosx=sinx.1\\cosx=sinx\\tanx=1\\x=\frac{\pi}{4} +k\pi,k-integer.$

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a triangle with a base of 6cm and a height of 8cm is similar to a triangle with base 21cm. What is the height of the second tria

Greeley [361]

Make a proportion.

Do base over height; $\frac{base}{height}$ .

$\frac{6}{8} = \frac{21}{h}$
h is the height of the second triangle. Solve for h.

Cross multiply.
$\frac{6}{8} = \frac{21}{h}$
6h = 168
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Answer:

Wouldn't it be 2 because of 14÷7?

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