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3 years ago

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Given: ZBECis a right angle Prove: ZAEB and ZCED are complementary

1 answer:

MrRissso [65]3 years ago

8 0

2x77}{x} theis way is the best answee

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Can you help me do my homework

timofeeve [1]

Answer:

I dont understand sorry.

Step-by-step explanation:

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3 years ago

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he sum of the first two terms of a G.P is 27 whereas the sum of the second and third term is 54. Find the first term and the com

viktelen [127]

Answer:

${ \tt{sum = \frac{a(r {}^{n - 1} )}{n - 1} }} \\ 27 = \frac{a(r {}^{2 - 1} )}{2 - 1} \\ { \bf{27 = ar - - - (i)}} \\ \\ 54 = \frac{a( {r}^{3 - 1} )}{3 - 1} \\ { \bf{108 = a {r}^{2} - - - (ii) }} \\ { \tt{(ii) \div (i) : }} \\ r = \frac{108}{27} \\ { \bf{common \: ratio = 4}} \\ { \bf{first \: term = \frac{27}{4} }}$

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3 years ago

What is the value of 9x^2 + 13x – 15, if x = 2

Paladinen [302]

Step-by-step explanation:

Given,

$9 {x}^{2} + 13x - 15$

and

$x = 2$

Substitute x = 2 into expression.

$9 {x}^{2} + 13x - 15 = 9( {2}^{2} ) + 13(2) - 15 \\ = 9(4) + 26 - 15 \\ = 36 + 26 - 15 \\ = 62 - 15 \\ = 47$

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3 years ago

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Delia drives 220 km in 2 hours. Calculate her average speed in km/hrs.

alexira [117]

110 because avg speed is total distance over total time

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3 years ago

35/9 simplified to it’s simplest form

MariettaO [177]

Answer:

$3\frac{8}{9}$

Step-by-step explanation:

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3 years ago