3 years ago

Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.

Mathematics

1 answer:

alexira [117]3 years ago

4 0

Answer:

Angles ∠B and ∠C are complementary, not supplementary.

You might be interested in

If 7x+3=24 what is the value of 5-4x?

sleet_krkn [62]

If 7x+3=24, that means x would be 3 so if you take 5-4x then that would be -7.

5 0

4 years ago

Read 2 more answers

Name the fourth in pane wxv

snow_tiger [21]

Your answer would be U

8 0

3 years ago

A bread recipe calls for 2 cups of wheat flour and 3 1/4 cups of white flour. How much flour does the recipe call for altogether

marusya05 [52]

Answer:

Step-by-step explanation:

2+3.25=5.25 or 5 1/4 cups of flour total

8 0

3 years ago

What is cot(A)?<br><br> A. -3 sqrt 7/7 correct

mylen [45]

Step-by-step explanation:

$to \: help \: you \\ \cot(A) = { (\tan(A)) }^{ - 1} = \frac{ \cos(A) }{ \sin(A) } \\ or : \\ \cot(A) = \sqrt{(1 + {( \tan(A) )}^{2} }$

7 0

3 years ago

Read 2 more answers

Inverse notation f^-1 used In a pure mathematics problem is not always used when finding inverses of applied problems. Rather, t

solong [7]

Answer:

a) 75.4 kg

b) $h(W)=\frac{W+83}{2.2}$

Step-by-step explanation:

a) The ideal weight of a 6-foot (72 inches) male is given by simply applying h= 72 in to the expression:

$W(72) = 49+2.2(72-60)\\W(72) =75.4\ kg$

b) Expressing height as a function of weight:

$W(h)= 49+2.2(h-60)\\2.2h-132+49=W\\h(W)=\frac{W+83}{2.2}$

Verifying with W(h(W)):

$W(h(W))= 49+2.2(\frac{W+83}{2.2} -60)\\W(h(W))= 49-132+W+83\\W(h(W))=W$

Verifying with h(W(h):

$h(W(h))=\frac{(49+2.2(h-60))+83}{2.2}\\h(W(h))=\frac{(49+2.2h-132+83)}{2.2}\\h(W(h))=h$

8 0

3 years ago