jarviantemelton
25.10.2021 •
Mathematics
Solve for the indicated variable. Include all of your work in your answer. Submit your solution.
Solved
Show answers
More tips
- H Health and Medicine How to Treat Styes: Causes, Symptoms, and Home Remedies...
- C Computers and Internet How to Learn to Type Fast?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- S Style and Beauty How to braid friendship bracelets?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
- H Health and Medicine What is Autism? Understanding the Basics of This Neurodevelopmental Disorder...
- P Philosophy How to Develop Extrasensory Abilities?...
Answers on questions: Mathematics
- M Mathematics What is the volume of a hemisphere with a radius of 2.6 m, rounded to the nearest tenth of a cubic meter?...
- M Mathematics Plz help me find the missing frequencies on the tablee...
- M Mathematics Need to find the area for this triangle...
- M Mathematics PLS HELP 2772288282 PlsPLA PLASS...
- M Mathematics What is the solution set for x -1...
- M Mathematics Janelle makes a profit of 10% when she sells a bag for $900 i. What is the cost price? ii. find out how much she should have sold it for to make a profit of 15%...
- M Mathematics Letf(x)=4x and g(x)=4x−1+2. Describe the transformation off(x) to g(x) . Shift left 1 and up 2 Shift right 1 and up 2 Shift left 1 and down 2 Shift right 1 and down 2...
- M Mathematics A culture of bacteria originally had 320 specimens in the petri dish. The amount of bacterium doubles every hour. After five hours, how many specimens are in the petri dish?...
- M Mathematics What is (4x5) + 6/3 + (9+5)?...
- M Mathematics Kellie works as an administrative assistant. She makes $19.25 per hour. How much does Kellie make a day? A. $770 B. $15,400 C. $154 D. $152...
Ответ:
Ответ:
7 cm
Step-by-step explanation:
(20-2x)(50-2x) = 216
4x² - 40x - 100x + 1000 - 216 = 0
4x² - 140x + 784 = 0
x² - 35x + 196 = 0
x² - 28x - 7x + 196 = 0
x(x - 28) - 7(x - 28) = 0
(x - 7)(x - 28) = 0
x = 7, 28
x can not be more than 10 because the dimensions are 20×50
So x = 7 cm