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]
3 years ago
7

Math questions!! 30 points

Mathematics
1 answer:
vampirchik [111]3 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
PLEASEEEEEEEEEEEEEEEEEEEEEE Edgar rolls two six-sided number cubes. What is the probability that he rolls a 2 on
frutty [35]

Answer:

The probability that he rolls a sum of 9 given the sample space is . 9/36, or 1/4.

What is the probability?

Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The probability that he rolls a sum of 9 = cubes that have a sum of 9 / total number of cubes

9/36 = 1/4

5 0
2 years ago
An aircraft flies at a speed of 480 miles per hour. It takes the aircraft t hours to reach its destination.
Westkost [7]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
In the figure below what is the value of x
LenaWriter [7]

Answer:

It would be 32. my G

3 0
3 years ago
Read 2 more answers
14k -14m - 23k + 59m
hoa [83]

-9k + 45m

you can reorganize the problem: 14k - 23k - 14m + 59m

from here, you can just do the somple math: -9k + 45m

May I have brainliest please? :)

5 0
3 years ago
Recall the equation for a circle with center ( h , k ) and radius r . At what point in the first quadrant does the line with equ
lord [1]

Answer:

  (3√2, 1+3√2) ≈ (4.243, 5.243)

Step-by-step explanation:

The line has a slope of 1 and goes through the center of the circle, so will intersect the circle at the point ...

  (6, 6)/√2 +(0, 1) = (3√2, 1+3√2) ≈ (4.243, 5.243)

8 0
4 years ago
Other questions:
  • What is x-10= -3 what is "x"?
    12·1 answer
  • What is 2x to the second power + x + 3 x - 5
    15·1 answer
  • Based on the number of pyramids that fit precisely into a cube, which of the following is used in an informal argument for the f
    8·2 answers
  • Please help me with this if you know the answers! i am behind on my work and i need the help! only Use the answere optoin if you
    7·2 answers
  • At Mario's Pizza, a large pizza has a diameter of 18 inches. What is the area of two pizzas?
    11·2 answers
  • 1. Sam won over super bouncy balls playing horseshoes at her school's game night. Later, she gave two to each of her friends. Sh
    10·1 answer
  • Find the value of x plz
    10·2 answers
  • A man pays Rs.1440 for income tax at the rate of Rs.2 per Rs.100. Find his income​
    12·1 answer
  • A body of mass 40 g moves with a velocity of 4ms -1. Calculate its kinetic energy ​
    13·1 answer
  • Solve for W in A = 2(L + W)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!