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xxMikexx [17]
3 years ago
8

Need help ASAP

Mathematics
2 answers:
diamong [38]3 years ago
7 0

Answer:

b. {-9, 3}.

Step-by-step explanation:

x^2 + 6x - 27 = 0

We need 2 numbers whose product is -27 and whose sum is + 6.

These are + 9 and - 3. So the factors are:

(x - 3)(x + 9) = 0

(x - 3) = 0 or (x + 9) = 0

x = 3 or -9.

Zarrin [17]3 years ago
4 0

Answer: option b is the correct answer.

Step-by-step explanation:

The given quadratic equation is expressed as

x^2+6x-27=0

In order to solve the equation by factorization, the first step is to find two numbers such that their sum or difference is 6x and their product is

- 27x^2. The two numbers are 9x and - 3x. Therefore,

x^2 + 9x - 3x - 27 = 0

x(x + 9) - 3(x + 9) = 0

x - 3 = 0 or x + 9 = 0

x = 3 or x = - 9

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DUE IN 10 MINUTES. PLEASE HELP. WOULD BE VERY THANKFUL
Andrej [43]

Answer:

1. y = 36°

  a = 9.7

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Step-by-step explanation:

see below

7 0
3 years ago
Morgan wants to draw a right triangle two side lengths are 6 unites and 8 units. select all the possible dimensions of the third
olga_2 [115]

The possible dimension of the third side is 10 units.

<h3>What is the possible dimension of the third side?</h3>

A right triangle is a triangle that has three sides known as the opposite, adjacent and hypotenuse. The hypotenuse is the longest sides of the triangle. The opposite side is the side that faces an angle. The adjacent side is the third side.

If two side lengths are given, the third side can be determined using the Pythagoras theorem.

√a² + b ² = c

√6² + 8² = √36 + 64 = 10 units

To learn more about right angled triangle, please check: brainly.com/question/20694080

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5 0
2 years ago
Help me to do this please
Tanzania [10]

If x represents the mass of 1 ball in kg, then the balance shows ...

... 6x = x + 9 kg

... 5x = 9 kg

Then 6x is ...

... (6/5)·5x = (6/5)·9 kg = 10.8 kg

0.8 kg = 0.8·1000 g = 800 g

so 10.8 kg is ...

... D. 10 kg 800 g

7 0
3 years ago
Leah knit a scarf that is 130 centimeters long, Theo knit a scarf that is 4/3 as long
Delvig [45]

Answer: Theo's scarf is  173 + 1/3 centimeters long.

Step-by-step explanation:

The scarf of Leah is 130 centimeters long.

The one of Theo is 4/3 as long as the one of Leah, then we have that the length of the scarf of Theo is:

Lenght = (4/3)*130 cm =(4*130)/3 cm =520/3 cm  

Now, we know that if all the digits of a number add up to a multiple of 3, that number is divisible by 3.

520/3 = (519 + 1)/3 = 519/3 + 1/3 = 173 + 1/3

Theo's scarf is  173 + 1/3 centimeters long.

3 0
3 years ago
The question is on the fill
jeka94

Answer:

Your mom is annoying

Step-by-step explanation:

She keeps calling me even though its over.

5 0
3 years ago
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