answer.
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
denpristay [2]
2 years ago
7

which represents the solution(s) of the system of equations, y=x^2-2x-15 and y=8x-40? determine the solution set algebraically

Mathematics
1 answer:
Harrizon [31]2 years ago
7 0
y=x^2-2x-15 (1) y=8x-40 (2)

8x-40=x^2-2x-15
X^2+10x-25=0
(x-5)^2
×=5 y=0
You might be interested in
Write a expression that shows 3 times the sixth power of 10
user100 [1]
(10 raised to the power of 6)×3     

(10*6) ×3
8 0
2 years ago
The sides of a square are three to the power of two sevenths inches long. What is the area of the square? (
____ [38]

Answer:

Step-by-step explanation:

The side of the square = 3^2/7

Use the law of exponents . If the power is a fraction, that means it is

3^2/7 = 3^2 x 1/7 = 7√9

To find the area you multiply this by itself.

This gives you 1.87...

Hope this helps

8 0
2 years ago
There were 567 people at a concert when a band started playing. After each song, only one-third of the people stayed to hear the
Solnce55 [7]
To write the function correctly, it is important to assign variables correctly and understand the situation of the problem clearly. For this, we let y the number of people and x as the number of songs played.

At x = 0   y = 567
at x = 1   y = 567 - 567(1/3)
at x = 2   y = 567 - 567(1/3)(1/3)
at x = 3   y = 567 - 567(1/3)(1/3)(1/3)

Therefore, the number of people left after x songs would be represented by the equation:

y = 567 - 567(1/3)x
y = 567 ( 1- x/3 )
7 0
2 years ago
Read 2 more answers
One serving of granola provides 4% of the protein you need daily. You must get the remaining 48 grams from other sources. How ma
e-lub [12.9K]
48 grams= 96% needed

x grams. = 4%

Set up a proportion

48/96 = x/4

96/24=4
48/24=2
x=2= grams in the granola

Add the value of 96% and the value of 4% to get the value of 100%

2+48=50

Final answer: 50 grams
7 0
2 years ago
A researcher carefully calculates the correlation coefficient and gets a value of r=1.23. What does this value mean?
Vaselesa [24]
Answer: An error was made! All correlation coefficients: -1 ≤ r ≤ 1.
4 0
2 years ago
Other questions:
  • My friend sets out walking at a speed of $3$ miles per hour. I set out behind her $5$ minutes later at $4$ miles per hour.For ho
    6·2 answers
  • Is 0.398 a whole number, interger, rational number, irrational number, or a real number
    11·2 answers
  • What is 1,242/99 rounded to the nearest integer? Explanation please?
    12·1 answer
  • Explain how a function graph can be used to help verify that a function is factored correctly
    7·1 answer
  • A random sample from a normal population is obtained, and the data are given below. Find a 90% confidence interval for . 114 157
    12·1 answer
  • An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation of all
    9·1 answer
  • PLEASE HELP
    11·1 answer
  • Given the graph below, which of the following statements is true? On a coordinate plane, a graph shows an image with three conne
    11·2 answers
  • A person who had $1,000,000 gave $100 to charity. How much must a student who has $100 give to charity to give proportionally th
    6·1 answer
  • You are constructing a concrete landing pad for a helicopter. You have 4704 cubic feet of concrete
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!