megan9246
11.05.2021 •
Mathematics
17. What is the value of C so that x^2+15x + c is a perfect square trinomial?
A. 30
B. 15/2
C. 15/4
D. 225/4
Solved
Show answers
More tips
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
Answers on questions: Mathematics
- M Mathematics AAAAAAAAAAAAAAAAA HELP...
- M Mathematics Factorise1) 9a^2 - 6a...
- M Mathematics Tell whether the rates of change are constant or variable. If it is constant, identify the rate of change...
- M Mathematics In a pot of stationery, the ratio of paper clips to drawing pins is 45 and the ratio of paper clips to bulldog clips is 3. 2. Work out the ratio of paper clips to drawing...
- M Mathematics Find the factors of the following (iii) 3x + y^3 z...
- M Mathematics Hel pl Subtract. Write your answer in simplest form. 8 7/10 - 3 4/10...
- M Mathematics Write down the value of the 5 in each of thesenumbers.8.154751 6021 567 324 896...
- M Mathematics One angle is its own supplement. What size is this angle?...
- M Mathematics Emma buys a house for £250000 She sells the house for £263750 Calculate the percentage profit Emma makes...
- M Mathematics Determine whether each equation is linear. If so, write in standard form 1. xy=6 2. 2x+3y+7=3...
Ответ:
D. 225/4
Step-by-step explanation:
To complete the square (a technique that can be applied to many problems!), take half the coefficient of x and square the result.
The coefficient of x is 15. Half of 15 is 15/2. Square 15/2 to get 225/4.
Check:
Ответ: