3 years ago

A positive number is 30 less than its square. Find the number.

Mathematics

1 answer:

Veronika [31]3 years ago

8 0

<span><span>x = x^2 - 30

or

x^2 - x - 30 = 0
Factors to
(x-6)(x+5) = 0

x = +6 is the positive number</span></span>

You might be interested in

Eric is two years younger than 2 times his sisters age. Write a rule that represent Eric's age a as a function of his sisters ag

Snezhnost [94]

(11•2) - 2 = Eric's Age

7 0

3 years ago

Use the distributive property to remove the parentheses.

sergij07 [2.7K]

Answer:

3+2x

Step-by-step explanation:

Distribute the equation out.

1/4(12+8x)

(1/4*12)+(1/4*8x)

Multiple those out to get a new equation

3+2x

You cannot add those together because of the variable. Theres no way of knowing what x equals so this is as far as you can go therefor making the answer 3+2x

7 0

3 years ago

Read 2 more answers

You have a bag of marbles. 4 are blue, 3 are red, 2 are green, 2 are yellow are 4 are purple. What is the probability that you p

valkas [14]

Answer:

2/35

Step-by-step explanation:

There are 15 marbles in total.

$\frac{4\\}{15}$ × $\frac{3}{14}$

The answer would be $\frac{2}{35}$ .

6 0

2 years ago

Read 2 more answers

Which of the following hace a value equal to |37|? Select all that apply

daser333 [38]

B, D, and E
The absolute value of -37 is 37.
The absolute value of 37 is also 37.
When you distribute the negative in the parenthesis the -37 becomes positive.

3 0

3 years ago

If 5 + b = 3 and a - b = 7 , then which of the following is true?

brilliants [131]

2a plus 6 equl eight i hink so

4 0

3 years ago

Read 2 more answers