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
alexdok [17]
3 years ago
10

A certain number added to its square is 30. Find the number

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0
X+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5
You might be interested in
Twice a number increased by 1 is -11. Find the number.​
irina [24]

Answer:

-6

Step-by-step explanation:

I hope this helps you out!

3 0
3 years ago
Use the trapezoid rule to estimate the area under the graph of y = x2 + 2 for values of x from 0 to 3.
dimulka [17.4K]
So basically you form little trapaziods to fin =d the area. It's been a long time since I took calculus so Imma have to improvise

Area or trapaziod = area of rectangle + area of triangle so you get
2*1+(3-2)*1/2+3*1+(6-3)*1/2+6*1+(11-6)*1/2=15.5
8 0
3 years ago
Expand Expression t( 3n + 4)
Free_Kalibri [48]

Answer:

=3tn+4t

hope it helps...

8 0
3 years ago
Read 2 more answers
Please help!!! asap! ( 10 points)
Lubov Fominskaja [6]

Answer:

a. true: 3    false: -5

b. true: 9    false: 2

c. true: 1/3  false: 1

d. true: 2    false: 3

I hope this helps!

3 0
3 years ago
How many different outcomes are possible when choosing a vowel and choosing a card suit (spades, clubs, hearts or diamonds)?
nikklg [1K]
Since one of the 5 vowels is paired with the four card suit.so our answer is just 5+5+5+5=20








6 0
3 years ago
Other questions:
  • A cone shaped paper cup is 2.5 inches high and has a diameter of 3 inches. Ehat is volume to the nearest hundredth
    5·1 answer
  • The license fee for a car which cost $7,500 is $90. At the same rate, what is the license fee for a car that cost $9,400?
    13·1 answer
  • In a recent year, a letter to Europe from the United States cost $0.94 to mail. A letter mailed within the United States costs $
    5·1 answer
  • [I need help!]
    15·1 answer
  • Answer the question with a step-by-step method
    8·1 answer
  • Can someone help solve
    9·1 answer
  • At what point do the lines y = -x + 5 and y = 2x – 1 intersect?
    11·1 answer
  • Find the value of x in the isosceles triangle shown<br> below.<br> 8<br> 8<br> 6
    12·2 answers
  • What is the equation for the line in slope-intercept form?
    9·1 answer
  • What is the constant of proportionality? 48= 4k
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!