3 years ago

Which figure must be a square?

Mathematics

1 answer:

Maslowich3 years ago

7 0

I think the answer is A

Hope it helps :-)

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For what value of H is 24= h/10-6

maw [93]

H should equal 96

because 10 - 6 equals 4

96 divided by 4 equals 24

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3 years ago

. how many 1/2s are in 3

sweet [91]

Answer:

Step-by-step explanation:

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3 years ago

What is the coefficient in the expression? 3(mx)4 + 5

Goryan [66]

3 is the answer to your question

7 0

3 years ago

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In the figure, AB || CD. If m<1=70° and m<2 = 45°, find the m<3

docker41 [41]

Answer:65 degrees

Step-by-step explanation: a triangle has 180 degrees.

one angle is 45 degrees and the other is 70

if we add them together we get 115

180-115 is 65

m3 is 65 degrees

8 0

2 years ago

Find the exact value of the given expression.<br> sin(2cos^-1(5/13))

xeze [42]

Answer:

+120/169 or -120/169

Step-by-step explanation:

let $cos^{-1}[\frac{5}{13} ] = \alpha$

where, alpha is some angle that satisfies the assumed condition.

so, $cos\alpha= 5/13$

[ taking cos to the other side or applying cos on both sides]

now, substitute this in the given expression

$sin(2cos^-1(5/13)) = sin(2\alpha )$

as sin $\beta$ = $+ or -\sqrt{1-(cos\beta) ^{2}$

[by general trigonometry formula: $cos^{2}[\beta] +sin^{2}[\beta]=1$ ]

so if $cos\alpha= 5/13$ , we can get sin $\alpha$ from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

as, sin $2\beta = 2*sin[\beta ]*cos[\beta ]$

[by general trigonometry formula]

here, now $sin[2\alpha ]=2*(+or- 12/13)*5/13\\$

so, the final value can be 120/169 or -120/169.

4 0

3 years ago