3 years ago

Page 1

Mathematics

1 answer:

Nadya [2.5K]3 years ago

4 0

Answer:

eweweweweweewwe

Step-by-step explanation:

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Tanθ= a. 1 - cot^2 θ b. 1/cot θ c. 1 + sec^2 θ

DIA [1.3K]

Answer:

$tanθ = \frac{sinθ}{cosθ} \\ = \frac{1}{ \frac{cosθ}{sinθ} } \\ = \frac{1}{cotθ}$

b. 1/cot θ

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3 years ago

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What factors do you think are involved in determining the pitch of the roof? Explain your reasoning.

ki77a [65]

Use the Pythagorean Theorem to solve. This will be a right triangle:
=
Let the slope = the hypotenuse = c
Let one side = a=8
Let the other side =b =15
Plug-in the values and solve for the c-term
Check you answer by plugging the value of "c" back into the orignial equation and solve.
.
=
=
=
=
=
17=c
.
Check by plugging into the original equation and solve.
=
=
289=289 [checks out]

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2 years ago

Factor completely 3bx2 − 9x3 − b + 3x. (b − 3x)(3x2 − 1) (b + 3x)(3x2 + 1) (b + 3x)(3x2 − 1) Prime

Daniel [21]

$3bx^2-9x^3-b+3x=\boxed{3x^2}\cdot b-\boxed{3x^2}\cdot3x\fbox{-1}\cdot b\fbox{-1}\cdot (-3x)\\\\=\boxed{3x^2}(b-3x)\fbox{-1}(b-3x)=\boxed{(b-3x)(3x^2-1)}\\\\completely:\\use:a^2-b^2=(a-b)(a+b)\to3x^2-1=(x\sqrt3)^2-1^2=(x\sqrt3-1)(x\sqrt3+1)$
$therefore:\\3bx^2-9x^3-b+3x=(b-3x)(3x^2-1)\\=\underline{\underline{(b-3x)(x\sqrt3-1)(x\sqrt3+1)}}$

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3 years ago

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Please help me I will mark brainliest. I’m just double checking to make sure I got it correct

ycow [4]

Answer:

the length of c is 18.43909

Step-by-step explanation:

pythagorean therorem

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2 years ago

A land mass is roughly in the shape of a rectangle whose perimeter is 1200 miles the width is 120 miles less than the length fin

Ostrovityanka [42]

Answer:

Length: 360. Width: 240.

Step-by-step explanation:

360 * 2 = 720

240 * 2 = 480

720 + 480 = 1,200

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2 years ago