![00manray](/avatars/10285.jpg)
00manray
12.02.2021 •
Mathematics
What is the value of x2+9x+20 when x could be -5, -3 or -6
Solved
Show answers
More tips
- H Health and Medicine How to Increase Hemoglobin in the Blood...
- A Animals and plants How to Store Carrots: Tips for Homeowners...
- L Legal consultation Juvenile Justice: Who Needs It?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
Answers on questions: Mathematics
- M Mathematics A drive has a maximum speed of 12,000 revolutions per minute. If a disc has a diameter of 12cm, what is the linear speed, in km/h, of a point 3cm from the center if the disc is spinning...
- M Mathematics A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising....
- M Mathematics Scientists collect data on the blood cholesterol levels (milligrams per deciliter of blood) of a random sample of 24 laboratory rats. A 95% confidence interval for the mean blood...
- M Mathematics Suppose small lights are going to be hung from one corner of a room to the opposite corner across the room s ceiling. The room volume is 566 sq ft 2. How can you determine the distance...
- M Mathematics The ratio of the length to the width of a cereal box 5:4. The length of the cereal box is 60 inches. What is the width...
- M Mathematics Solve 2x+8=20 using double number line....
- M Mathematics What is the value of 2x + 6y when x = 7.1 and y = 8.4...
- M Mathematics Frank planters 200 tomato plants in a greenhouse. He plans to sell the plants this spring. How much should he sell each plant for if he wants to make a total of $150.00?...
- M Mathematics (1 point) Consider the quadratic equation =72+154+14 y = 7 x 2 + 154 x + 14 . Complete the square to express the quadratic in standard form =(−ℎ)2+ y = a ( x − h ) 2 + k ....
- M Mathematics A group of neighbors is holding an end of summer block party they buy p packs of hot dogs with 8 hot dogs in each pack all together they have 56 hot dogs for the party...
Ответ:
Step-by-step explanation:
You should use a ^ to indicate an exponent. x^2 is the same as x².
x² + 9x + 20
Replace the x with (-5).
(-5)² + 9(-5) + 20 = 25-45+20 = 0
Then do the same with x = (-3):
(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2
You can do x = (-6)
Ответ: