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2 years ago

Factorise 3-x^2 Someone answer this question please

Mathematics

1 answer:

densk [106]2 years ago

4 0

Answer:

No factors.

3 - x^2 is prime.

Step-by-step explanation:

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What is the probability of getting either a nine or an ace when drawing a single card from a deck of 52 cards?

Flura [38]

probability of drawing ace: 4/52 = 1/13

probability of drawing 9: 4/52 = 1/13

probability of drawing ace or 9: 1/13 + 1/13 = 2/13 or ~15.4%

8 0

3 years ago

Joshua went kayaking. It cost him $ 15 to rent the kayak. It also cost $ 6 for each hour spent on the lake kayaking. Joshua spen

pishuonlain [190]

Step-by-step explanation:

The total bill will be the sum of the rent and the cost for the total time spent.

$15 + $6 * 2.5

$15 + $15

$30

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3 years ago

Plesase help <br> UNIT 7: PARALLELOGRAMS QUIZ

NARA [144]

Answer:

NPL

Step-by-step explanation:

The angles across from each other on a parallelogram are congruent

7 0

3 years ago

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PLEASE HELP ME IM STRUGGLING!!!

Kitty [74]

Answer:

The required answer is $c=7\sqrt{3}$

Therefore the number in green box should be 7.

Step-by-step explanation:

Given:

AB = 7√2

AD = a , BD = b , DC = c , AC = d

∠B = 45°, ∠C = 30°

To Find:

c = ?

Solution:

In Right Angle Triangle ABD Sine identity we have

$\sin B = \dfrac{\textrm{side opposite to angle B}}{Hypotenuse}\\$

Substituting the values we get

$\sin 45 = \dfrac{AD}{AB}= \dfrac{a}{7\sqrt{2}}$

$\dfrac{1}{\sqrt{2}}= \dfrac{a}{7\sqrt{2}}\\\\\therefore a=7$

Now in Triangle ADC Tangent identity we have

$\tan C = \dfrac{\textrm{side opposite to angle C}}{\textrm{side adjacent to angle C}}$

Substituting the values we get

$\tan 30 = \dfrac{AD}{DC}= \dfrac{a}{c}\\\\\dfrac{1}{\sqrt{3}}=\dfrac{7}{c}\\\\\therefore c=7\sqrt{3}$

The required answer is $c=7\sqrt{3}$

8 0

3 years ago

Please answer I'm begging !!!

Maurinko [17]

Answer:

K=3,052

Step-by-step explanation:

18,010-14,958=3,052

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3 years ago

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