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2 years ago

I keep posting the next questions but help anyways pleasee

Mathematics

1 answer:

notka56 [123]2 years ago

6 0

Answer:

1) A, C, and D all represent linear equations.

2) A, C, and D are functions; none of them have repeating x values.

3) D

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The product of some negative number and 5 less than three times that number is 12. Find the number.

miv72 [106K]

(x)(3x - 5) = 12
3x^2 - 5x = 12
3x^2 - 5x - 12 = 0
(x - 3)(3x + 4) = 0
x = 3, -4/3
The answer must be negative so the number is -4/3.

Hope this helps!

4 0

3 years ago

The length of a rectangle is five more than the width. The perimeter is 130cm. What is the area?

Evgen [1.6K]

<h2>Greetings!</h2>

Answer:

≅ 586.8

Step-by-step explanation:

Take x to be the width, if the length is 5x bigger than the width, then this can be shown by 5x.

The total perimeter is:

(2 * x) + (2 * 5x) because each side has another parallel one.

This means that 2x + 10x = 130

12x = 130

Divide both sides by 12:

$\frac{12x}{12} = \frac{130}{12}$

x = $\frac{65}{6}$

So the area = length * width

x * 5x = area

Substitute the values in:

$\frac{65}{6} * (5*\frac{65}{6})$ = 586.8055... ≅ 586.8

So the approximate area is 586.8

<h2>Hope this helps!</h2>

5 0

2 years ago

In a circle of diameter 30 cm a chord of 10cm is drawn. To 2 decimal places, how far is the chord from the center of the circle?

Romashka-Z-Leto [24]

<u>Given:</u>

The circle has a diameter of 30 cm and a chord of 10 cm is drawn.

Radius of the circle = 15 cm

Half of the chord = 5 cm

We need to determine the distance of chord from the center of the circle.

<u>Distance of chord from the center of the circle:</u>

Let us use the Pythagorean theorem, to find the distance between the center and the chord.

Let d denote the distance between the center and the chord of the circle.

Thus, we get;

$15^2=d^2+5^2$

$225=d^2+25$

$200=d^2$

Taking square root on both sides, we get;

$14.14=d$

Thus, the distance between the center and the chord of the circle is 14.14 cm.

Hence, Option A is the correct answer.

4 0

2 years ago

There are 4 juice cartons and 9 milk cartons in the school refrigerator. What is the ratio of juice cartons to total cartons?

Rama09 [41]

Ther is 4 juice cartons. 4+9=13. so it would be 4/13

7 0

2 years ago

Read 2 more answers

What is the value of x in the equation below?

denis23 [38]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given equation is :

$1+2e^{x+1}=9$

Subtracting 1 in both sides

$1+2e^{x+1}-1=9-1$

$2e^{x+1}=8$

Dividing 2 in both sides

$e^{x+1}=\frac{8}{2}$

$e^{x+1}=4$

Taking log on both sides

$loge^{(x+1)}=log4$

$(x+1)loge=log4$

Plugging the value of log e as 1

$x+1=log4$

$x=log4-1$ ..................... Answer

Hope it will help :)

6 0

3 years ago