1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexira [117]
3 years ago
14

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
A health food store was charging $5.40 for a small salad but raised the price 8% the new price after the increase is $5.83 enter
joja [24]

Answer:

New price= Increament + old price

Step-by-step explanation:

Given data

Old price = $5.40

Percent increase= 8%

New price=  $5.83

Let find the increment

=8/100*5.40

=0.08*5.40

=$0.432

New price= Increament + old price

New price=0.432+5.40

New price=$5.83

4 0
3 years ago
Olivia is growing roses and keeps track of how much fertilizer (in ounces) she adds to the soil and how many blooms each rose bu
dusya [7]

Answer:

<em>She needs to add no fertilizer, option A)</em>

Step-by-step explanation:

<u>Equation of a Line:</u>

According to the conditions of the question, being x the ounces of fertilizer Olivia adds to the soil, and y the number of blooms each rose bush has, the relation between them is

y = 1.345x + 4

It's bee required to compute the value of x such that the roses have 4 blooms, thus

1.345x + 4=4

Solving for x

1.345x=4-4=0

x=0

This means she needs to add no fertilizer, option A)

8 0
4 years ago
Read 2 more answers
Help asap please ----------------
melomori [17]

Answer:

-1 Not in domain

0 In domain

1 In domain

Step-by-step explanation:

The domain for the square root function is all positive numbers including (0). The domain is the set of real numbers which when substituted into the function will produce a real result. While one can substitute a negative number into the square root function and get a result, however, the result will be imaginary. Therefore, the domain for the square root function is all positive numbers. It can simply be expressed with the following inequality:

x\geq0

Therefore, one can state the following about the given numbers. Evaluate if the number is greater than or equal to zero, if it is, then it is a part of the domain;

-1 => less than zero; Not in domain

0 => equal to zero; <em> </em>In domain

1  => greater than zero: In domain

4 0
3 years ago
The definition of theorem? <br>​
charle [14.2K]

Answer:

In mathematics, a theorem is a non-self-evident statement that has been proven to be true, either on the basis of generally accepted statements such as axioms or on the basis of previously established statements such as other theorems. A theorem is hence a logical consequence of the axioms, with a proof of the theorem being a logical argument which establishes its truth through the inference rules of a deductive system. As a result, the proof of a theorem is often interpreted as justification of the truth of the theorem statement. In light of the requirement that theorems be proved, the concept of a theorem is fundamentally deductive, in contrast to the notion of a scientific law, which is experimental.

Step-by-step explanation:

5 0
3 years ago
Which describes the calculations that could be used to solve this problem? Lauren has 42 muffins to pack into boxes and bags. Sh
Marat540 [252]
The correct answer is D, 'Subtract 42 - 12. Then divide the difference by 3'. Lauren has 42 muffins, and she can put 12 of them into a box, leaving her with 30 muffins to fit into bags. If she can fit 3 muffins in each bag, and she wants to know how many bags she needs, then she needs to divide 30 by 3 to get 10. This means that she will need 10 bags of 3 muffins to completely pack 30 muffins. She started with 42, but 12 of those fit into the original box, so we don't have to worry about it.

Hope this helps!
6 0
3 years ago
Read 2 more answers
Other questions:
  • A card is drawn at random from a standard 52-card deck. find the probability that the card is not a queen.
    9·1 answer
  • Can somebody help me with this?
    15·1 answer
  • Solve for all values of x by factoring. x^2-1=0
    10·1 answer
  • The ratio of boys to girls in Mrs. Ronilo's math class is 3 to 2. What percent of the class is boys? A) 33% B) 40% C) 60% D) 66%
    11·1 answer
  • (3x-4) (x+2) = 448<br> What is the value of x?
    12·1 answer
  • True or false:
    13·2 answers
  • Determine the type of triangle ​
    11·1 answer
  • I’ll give all my points to the person who gets their right
    14·1 answer
  • 12=2+2<br><br> d = 5<br><br> d = -5<br><br> d = 14<br><br> d = -14
    5·1 answer
  • Suppose a baker claims that his bread height is more than 15 cm, on average. Several of his
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!