3 years ago

The triangles are similar. Find the missing side length x. x=

Mathematics

1 answer:

ella [17]3 years ago

8 0

Yeah it isssssssssssssss

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Prove this trigonometric equation;<br><br> - tan^2x + sec^2x = 1,

alekssr [168]

Hey there :)

- tan²x + sec²x = 1 or 1 + tan²x = sec²x

sin²x + cos²x = 1
Divide the whole by cos²x

$\frac{sin^2x}{cos^2x} + \frac{cos^2x}{cos^2x} = \frac{1}{cos^2x}$

$\frac{sinx}{cosx} = tanx$ so $\frac{sin^2x}{cos^2x} = tan^2x$
and
$\frac{1}{cosx} = secx$ so $\frac{1}{cos^2x} = sec^2x$

Therefore,
tan²x + 1 = sec²x
Take tan²x to the other side {You will have the same answer}

1 = - tan²x = sec²x or sec²x - tanx = 1

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3 years ago

Quadrilateral A'B'C'D' is a reflection of Quadrilateral ABCD over the y-axis What is the length of C'D'

MArishka [77]

Answer:

C'D' = 4

Step-by-step explanation:

When the figure is reflected, the length of the segments does not change.

CD = 4 so C'D' = 4

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3 years ago

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Appliances & Wares is valuing its inventory of toasters. On May 31st, Appliances & Wares had 23 toasters on hand. What i

ohaa [14]

Hi there
Average cost per toaster
3,278.6÷148=22.15. ..answer
ending inventory value for May
22.15×23=509.45

Hope it helps

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3 years ago

Roberto is having his house painted. The job takes three days, and he pays the painter the same hourly rate everyday. The cost o

Gelneren [198K]

Answer:

a is the answer

Step-by-step explanation:

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2 years ago

Someone pleaseee help I’m struggling

spin [16.1K]

Step-by-step explanation:

(0,5) and (-2,-3)

y=mx+b

find m

$\frac{y1 - y2}{x1 - x2} \\ = \frac{5 - ( - 3)}{0 - ( - 2)} \\ = \frac{8}{2} \\ = 4 \\$

m=4

Substitute (0,5) or (-2,-3)

For easy processing substitute : (0,5)

y=4x+b

5=b

y=4x+5 is the answer

Brainliest please~

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3 years ago