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3 years ago

Answer please quick

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

Answer:

The answer to your question is letter B

Step-by-step explanation:

Process

1.- Get two points of each line

Line 1 Line 2

Point A (0, 2) (5, 7)

Point B (-4, 0) (0, -4)

2.- Find the slope of each line

Formula slope = m = (y2 - y1) / (x2 - x1)

Line 1 m = (7 - 2) / (5 - 0)

m = 5/5

m = 1

Line 2 m = (-4 - 0) / (0 + 4)

m = -4/4

m = -1

3.- Find the equation of the lines

Formula y - y1 = m(x - x1)

Line 1 y - 2 = 1(x - 0)

y - 2 = x

y = x + 2

Line 2 y + 4 = -1(x - 0)

y + 4 = -x

y = -x - 4

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X+3=5 . Find x in the given equation

Oduvanchick [21]

Answer:

Step-by-step explanation:

x + 3 = 5

x = 5 - 3

x = 2

Therefore, x=2 in the given equation

4 0

3 years ago

Read 2 more answers

In the triangle below, determine the value of a.

dusya [7]

Answer:

6.1

Step-by-step explanation:

Taking cos function,

Cos C=BC/AC

Cos 35°=5/a

a=5/cos 35°

a=6.1

5 0

4 years ago

Kate is going on a long distance car trip. She begins with 16 gallons of gas in her car and her car burns 3 gallons of gas each

pochemuha

Answer:

She was driving for 5 hours

Step-by-step explanation:

Let us solve the question

∵ Kate begins with 16 gallons of gas in her car

∵ Her car burns 3 gallons of gas each hour

→ That means the rate of burn of the gas is 3 gallons per hour

∵ She ends her road trip with 1 gallon of gas left in the tank

→ That means she used the difference between 16 and 1 gallons

∴ The number of gallons she used = 16 - 1 = 15 gallons

→ By using the ratio method

→ Gallon : hour

→ 3 : 1

→ 15 : x

→ By using cross multiplication

∵ 3 × x = 15 × 1

∴ 3x = 15

→ Divide both sides by 3

∴ x = 5

∵ x represents the number of hours of her trip

∴ She was driving for 5 hours

8 0

3 years ago

MATH HELP???

marin [14]

<h2>Answer:</h2>

The quadratic function are:

option: A A) y(y + 4) - y = 6

Option: C C.) 4b(b) = 0

<h2>Step-by-step explanation:</h2>

We know that the general equation of a quadratic equation in terms of a variable x is given by:

$ax^2+bx+c=0$

y(y + 4) - y = 6

On simplifying the terms we have:

$y^2+4y-y=6\\\\y^2+3y-6=0$

Hence, option: A is correct.

(3x + 2) + (6x - 1) = 0

$(3x + 2) + (6x - 1) = 0\\\\i.e.\\\\3x+2+6x-1=0\\\\i.e.\\\\3x+6x+2-1=0\\\\i.e.\\\\9x+1=0$

Hence, it is a linear equation.

Hence, option: B is incorrect.

4b(b) = 0

it could also be written as:

$4b^2=0$

Hence, it is a quadratic equation.

Hence, option: C is correct.

3a - 7 = 2(7a - 3)

$3a-7 = 2(7a-3)\\\\i.e.\\\\3a-7=14a-6\\\\\\i.e.\\\\14a-6-3a+7=0\\\\i.e.\\\\14a-3a-6+7=0\\\\i.e.\\\\11a+1=0$

which is again a linear equation.

Hence, option: D is incorrect.

6 0

4 years ago

NEED HELP PLEASE!

USPshnik [31]

Answer:

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

$i^2 = -1$

Square of the sum:

$(x + y)^2 = x^2 + 2xy + y^2$

In this question:

$(x + (3+5i))^2$

$x^2 + 2x(3+5i) + (3+5i)^2$

$x^2 + 6x + 10xi + 9 + 30i + 25i^2$

$x^2 + 6x + 9 + (10x+30)i - 25$

$x^2 + 6x + (10x+30)i - 16$

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

5 0

3 years ago