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3 years ago

A tank full of water is leaking at a constant rate for 30 minutes. The equation

Mathematics

1 answer:

ankoles [38]3 years ago

3 0

Answer: A. There were 500 liters in the tank when the leak started, and it is decreasing by 9 liters per minute.

Step-by-step explanation:

This equation is in the form; y =mx + c.

c in this equation is the value of y when x is at 0.

c in the above formula is 500 which means that the number of litres (y) at zero minutes(x) is 500 litres.

m is the rate of change as a result of a change in x.

m in this equation is -9 which means that the water is reducing by 9 litres every minute (x).

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Solve 1. x2 + x - 6 = 0

ololo11 [35]

Answer:

x = -3 x=2

Step-by-step explanation:

x^2 + x - 6 = 0

Factor

What two numbers multiply to -6 and add to 1

3*-2 =-6

3+-2 =1

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

Using the zero product property

x+3 = 0 x-2 = 0

x = -3 x=2

6 0

3 years ago

Multiply: (x+4)(x^2+2x+3) Simplify and write your answer in Standard Form.

Oxana [17]

Answer:

x^3+6x^2+11x+12

Step-by-step explanation:

(x+4)(x^2+2x+3)

=x(x^2+2x+3)+4(x^2+2x+3) [by multiplying with bith sides]

=x^3+2x^2+3x+4x^2+8x+12

=x^3+2x^2+4x^2+3x+8x+12

=x^3+6x^2+11x+12

(please mark me brainliest)

6 0

2 years ago

Are you cyclist travels at a rate of 1.8 km/min. how far will the cycle is travel in 48 minutes

Tpy6a [65]

Answer:

86.4 km

Step-by-step explanation:

Since the cyclist travels 1.8km in a minute, he will travel 48 times that in 48 minutes:

$48*1.8 = 86.4$

6 0

3 years ago

Create an equation that describes the greatest horizontal length, H, in terms of the greatest vertical length, V.

marishachu [46]

The equation that describes the greatest horizontal length, H, in terms of the greatest vertical length, V is H = 2V + 3.

<h3>How to compute the equation?</h3>

Your information is incomplete. Therefore, an overview will be given.

Let's assume that the value of the horizontal length is 3 plus twice the value of the the vertical length. This will be:

H = (2 × V) + 3

H = 2V + 3

In conclusion, the equation is H = 2V + 3.

Learn more about equations on:

brainly.com/question/2972832

7 0

2 years ago

The factorization of 8x3 – 125 is (2x – 5)(jx2 + kx + 25). What are the values of j and k

Inga [223]

Answer:

$j=4\\k=10$

Step-by-step explanation:

$8x^3 - 125$

$\left(2x\right)^3-5^3$

Use this formula:

$x^3-y^3=\left(x-y\right)\left(x^2+xy+y^2\right)$

Where,

$x=2x\\y=5$

Substitute in the values.

$\left(2x\right)^3-5^3=\left(2x-5\right)\left(2^2x^2+5\cdot \:2x+5^2\right)$

$\left(2x-5\right)\left(4x^2+10x+25\right)$

4 0

3 years ago