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2 years ago

PLEASE HELP! REWARDING A LOT :)

Mathematics

2 answers:

vaieri [72.5K]2 years ago

4 0

Answer:

(x - 6)(x - 11)

Step-by-step explanation:

x² - 17x + 66

-11 and -6

x² -11x - 6x + 66

x(x -11) - 6(x -11)

(x - 6) (x - 11)

(x = 6 or x = 11) These are the possibilities of x

irinina [24]2 years ago

4 0

Answer:

${x}^{2} - 17x + 66 \\ {x}^{2} - 11x - 6x + 66 \\ ( {x}^{2} - 11x) + ( - 6x + 66) \\ x(x - 11) + 6(x - 11) \\ (x - 11)(x + 6)$

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∆ABC is a right angled at B and D is a point on BC if AD = 18cm BD = 9cm and CD =4cm Find AC

Gemiola [76]

In triangle, ABD,

AD²= AB²+BD²

AB² = AD²-BD²

AB² = 18²-9² = 324-81 = 243

AB = √243

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AC² = AB²+BC²

AC² = (√243)²+(13)²

AC² = 243+169

AC = √412

AC = 20.29

3 0

3 years ago

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babunello [35]

Answer:

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Step-by-step explanation:

-3/4*5/4-(-6/7)*(-3/4)

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3 years ago

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28 divided by 3/4 Please help!!!

Amanda [17]

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6 0

2 years ago

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Hey That last question is A LOT OF POINT'S

sergejj [24]

Answer:

1. 7x

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Step-by-step explanation:

5 0

1 year ago

I WILL GIVE BRAINLIEST IF YOUR ANSWER IS CORRECT

telo118 [61]

Answer:

1. 4.5 g

2. 56.25 g

Step-by-step explanation:

3 % substance solution means :

3 g of dry substance is present in 100 g of solution.

By unitary method:

The weight of dry substance in 1 g of solution = $\frac{3}{100}$

The weight of dry substance in 150 g of solution = $\frac{3}{100}\times150=4.5\ g$

Let the weight of solution be w.

8 % solution contains 8 g dry substance in 100 g.

We have to find the weight of the solution(w) which contains 4.5 g of dry substance.

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6 0

3 years ago