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
jarptica [38.1K]
2 years ago
7

Math questions!! 30 points

Mathematics
1 answer:
vampirchik [111]2 years ago
5 0

Answer:

Excluded Value :  3 and  -5  

Step-by-step explanation:

hello :

Excluded Value :    and    

the excluded value when : x²+2x-15=0

( x²+2x+1)-1-15=0

means : (x+1)²-16=0       (x+1)²-4² = 0

by identity : a²-b² =(a-b)(a+b)

(x+1-4)(x+1+4) =0   so :      (x-3)(x+5) =0  means : x-3=0 or x+5=0

x=3 or x= -5

Excluded Value :  3 and -5

You might be interested in
You invest $1,250 in a stock. The value of the stock goes up 3.2% and you sell it. How much money did you make?
suter [353]

Answer:

$1290

Step-by-step explanation:

1250x3.2%=40

1250+40=1290

4 0
3 years ago
Read 2 more answers
Pls help!!
AleksAgata [21]

Answer:

11.25

Step-by-step explanation:

15x3/4=45/4=11.25pounds

8 0
2 years ago
What's 9 + 10 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
san4es73 [151]

Answer:

19

Step-by-step explanation:

9 + 10 = 19

3 0
2 years ago
Read 2 more answers
Date:
Nadusha1986 [10]

Answer:

#3   1/6, 1/6, 1/2, 1/3, 5/6.

#4   3/12, 4/12, 5/12, 8/12, 9/12

Step-by-step explanation:

#3 is numbers out of six (fractions).

#4 is the same thing.  You add all of the numbers (4, 3, and 5) to get the total and then you subtract to get the probability.

These are all I know.

7 0
3 years ago
Write in descending order.420t + 201 to the 3rd power -210t to the 2nd power
nexus9112 [7]

To answer this, we need to see the polynomial. Descending order is in a way that the first term of the polynomial will be three, the second (in descending order, two....and so on).

420t+20t3-210t2

In descending order is:

20t^3 - 210t^2 + 420t

So, the option is number two.

4 0
9 months ago
Other questions:
  • The sum of 15 and six times a number t is eighty-one. What is the number
    9·2 answers
  • "find the indicated function values"
    6·1 answer
  • 4/3 divided by 7/8 how
    15·1 answer
  • When a figure is translated on a coordinate grid, what conclusion can you draw from the pre-image and image?
    12·2 answers
  • For<br> every dog<br> pet store<br> there are 3 cats at the pet store. What's the ratio?
    9·1 answer
  • Solve the equation for x=45<br> y=3x+56
    12·2 answers
  • What is the opposite of 23? :) help
    7·1 answer
  • Stella needed to get her computer fixed. She took it to the repair store. The technician
    5·1 answer
  • 5^(9x)=25^(4x+2) SHOW STEPSSSS
    10·1 answer
  • WILL MARK YOUR ANSWER AS BRAINLIEST how do I do this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!