Question

A positive real number is 8 more than another. If the sum of the squares of the two numbers is 80, find the numbers

100

likes
502 views

Answer to a math question A positive real number is 8 more than another. If the sum of the squares of the two numbers is 80, find the numbers

Expert avatar
Darrell
4.5
100 Answers
Absolutely, let's solve this problem. Here's how to find the numbers: **1. Set up the equations:** * Let 'x' be the first number. * The second number is 'x + 8' (since it's 8 more than the first). * The sum of their squares is 80: xΒ² + (x + 8)Β² = 80 **2. Solve the equation:** * Expand the equation: xΒ² + xΒ² + 16x + 64 = 80 * Combine like terms: 2xΒ² + 16x - 16 = 0 * Divide by 2 for simplicity: xΒ² + 8x - 8 = 0 * Factor the quadratic equation: (x + 4)(x - 2) = 0 * Solve for possible values of x: * x + 4 = 0 => x = -4 (We discard this since we need a positive real number) * x - 2 = 0 => x = 2 **3. Find the second number:** * Since x = 2, the second number is x + 8 = 2 + 8 = 10 **Answer:** The two numbers are 2 and 10.

Frequently asked questions (FAQs)
Question: What is the lateral surface area of a cone with a radius of 4 units and slant height of 10 units?
+
Question: In a triangle, if the length of one side is 8 and the measure of an adjacent angle is 45 degrees, find the length of the side opposite to that angle using Sine Law.
+
What is 40% in decimal form?
+
New questions in Mathematics
Let f(x)=||x|βˆ’6|+|15βˆ’|x|| . Then f(6)+f(15) is equal to:
Solution to the equation y'' - y' - 6y = 0
a) A tap can supply eight gallons of gasoline daily to each of its 250 customers for 60 days. By how many gallons should each customer's daily supply be reduced so that it can supply 50 more customers for twenty more days?
If L = (-2, -5) is reflected across y= -4 , what are the coordinates of L?
(6.2x10^3)(3x10^-6)
You are planning to buy a car worth $20,000. Which of the two deals described below would you choose, both with a 48-month term? (NB: estimate the monthly payment of each offer). i) the dealer offers to take 10% off the price, then lend you the balance at an annual percentage rate (APR) of 9%, monthly compounding. ii) the dealer offers to lend you $20,000 (i.e., no discount) at an APR of 3%, monthly compounding.
the probabilty that a person has a motorcycle, given that she owns a car 25%. the percentage of people owing a motorcycle is 15% and that who own a car is 35%. find probabilty that a person owns any one or both of those
2/3+5/6Γ—1/2
Log(45)
logy/logx + logz/logy + logt/logz = 8xΒ².t x=?
Prove that it is not possible to arrange the integers 1 to 240 in a table with 15 rows and 16 columns in such a way that the sum of the numbers in each of the columns is the same.
6-35 A recent study by an environmental watchdog determined that the amount of contaminants in Minnesota lakes (in parts per million) it has a normal distribution with a mean of 64 ppm and variance of 17.6. Assume that 35 lakes are randomly selected and sampled. Find the probability that the sample average of the amount of contaminants is a) Greater than 72 ppm. b) Between 64 and 72 ppm. c) Exactly 64 ppm. d) Greater than 94 ppm.
Three machines called A, B and C, produce 43%, 26% and 31% of the total production of a company, respectively. Furthermore, it has been detected that 8%, 2% and 1.6% of the product manufactured by these machines is defective. a) What is the probability that a product is not defective? b) A product is selected at random and found to be defective, what is the probability that it was manufactured on machine B?
Find the complement and supplement angles of 73
9/14 x 7/27 carry out indicated operation
To find the increased amount on a standard term deposit with the following conditions: starting amount: BGN 13000, type of deposit: annual, annual compound interest rate: 1.4%, after 4 years;
Solve for B write your answer as a fraction or as a whole number. B-1/7=4
P 13. Let P a point inside of a square ABCD. Show that the perpendicular lines drawn from A, B, C, respectively D, to BP, CP, DP, respectively AP are concurrent. Use geometric rotation.
2x-4=8
A small box measures 10 in. by 4 in. by 6 in. high. Find the volume of the box.