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grigory [225]
3 years ago
12

Please solve this urgently

Mathematics
1 answer:
xxMikexx [17]3 years ago
4 0

Answer:

Construction:~Join~A,C~and~P,Q.~AC~and~BE~intersect~at~G

                         and~PQ~and~BE~intersect~at~H

BG⊥AC~and~AG=GC [BG~is~bisector~of~

In~right~angled~triangle~ABG,\\sinABG = \frac{AG}{AB}\\or, sin15^o = \frac{AG}{x}\\or, AG = xsin15^o=GC\\Also,~PH=HQ=xsin15^o [APHG ~and~ GHQC~ are~congruent~rectangles.]\\In~right~angled~triangle~PBH,\\  sinPBH = \frac{PH}{PB}\\ or, sinPBH = \frac{xsin15^o}{10} \\Now,\\cosPBQ = cos[2(PBH)]~~~~~[

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Vlad1618 [11]

Answer:

amusing you mean 3x^2-8x-16 the answer is when x is equal to -4/3 and 4

Step-by-step explanation:

3x^2-8x-16 ------> (3x+4)(x-4)

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x-4=0 ----> x=4

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3 years ago
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Solnce55 [7]
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Answer:

0.24315

Step-by-step explanation:

Using the z score formula to solve this question

z = (x - μ) / σ,

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From the question:

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Using the z score table as well as probability calculator(as requested in the question to find the z score)

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3 years ago
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The equation is given as:

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The possible next steps are:

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2. Express x^2 -16 as a difference of two squares as follows

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However, the correct step in this case is to factor x^2 - 16 as a difference of two squares to give \mathbf{(x + 4)(x- 4)(x + 2) = 0}

This is so, because the question says Amy is trying to solve for variable x.

This step will ensure that she gets the possible values of x, unlike expanding the whole equation .

Hence, the correct next step is \mathbf{(x + 4)(x- 4)(x + 2) = 0}

Read more about equations at:

brainly.com/question/7674413

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