1answer.
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
stira [4]
3 years ago
8

Given that x square + 5 x + c is a perfect square find the value of C ​

Mathematics
1 answer:
lawyer [7]3 years ago
5 0

Answer:

c = \frac{25}{4}

Step-by-step explanation:

To make a perfect square

add ( half the coefficient of the x- term )² to x² + 5x

x² + 5x + (\frac{5}{2} )²

= x² + 5x + \frac{25}{4}

= (x + \frac{5}{2} )² ← a perfect square

You might be interested in
Write the number in 2 equivalent forms as a fraction, decimal, or percent.<br> 11<br> 16
pashok25 [27]
11.
Fraction - 11/100
Decimal - 0.11
Percent - 11%
16.
Fraction - 16/100
Decimal - 0.16
Percent - 16%
3 0
3 years ago
What is the vertex of the graph of f(x) = |x + 3| + 7? (3, 7) (7, 3) (–3, 7) (7, –3)
ArbitrLikvidat [17]

Answer:

(-3,7)

Step-by-step explanation:

7 0
3 years ago
Question 1. Use the data above to construct a 95% confidence interval for the mean class size μ. (calculate y and s to 3 decimal
snow_tiger [21]

Answer:

Which is the output of the formula =AND(12>6;6>3;3>9)?

A.

TRUE

B.

FALSE

C.

12

D.

9

Step-by-step explanation:

3 0
3 years ago
Please help with numbers 1 and 2 !!!
lesantik [10]
Well, this is a stem and leaf problem. 

The numbers are 20, 28, 29, 29, 31, 32, 36, 41, and 42. 

In order to solve for the mean, we find the average and we add the numbers together and divide by 9(there are 9 numbers). 

The mean is 32.
The median is the middle number, or 31. 
7 0
3 years ago
Read 2 more answers
Maya is solving the quadratic equation by completing the square.
kvasek [131]

Step-by-step explanation:

factor 4 out of the variable terms, as this helps.

but my approach is simply to define the target and then calculate "backwards".

we want to find

(ax + b)² = a²x² + 2abx + b²

and now we compare with the original equation :

a²x² = 4x²

a² = 4

a = 2

2abx = 16x

2×2×bx = 16x

4b = 16

b = 4

b² = 16, but we have only 3, so we need to subtract 16-3 = 13 from the completed square.

so, our equation is

(2x + 4)² - 13 = 0

(2x + 4)² = 13

2x + 4 = sqrt(13)

2x = sqrt(13) - 4

x = sqrt(13)/2 - 2

6 0
2 years ago
Other questions:
  • In large population 51% people vaccinated if 4 people are randomly selected what’s the probability at least 1 has been vaccinate
    10·1 answer
  • What is the sum of the geometric sequence -4,24,-144, ... if there are 7 terms?
    9·1 answer
  • Solve: 49x2 − 60 = 0
    12·1 answer
  • Five times a number d
    10·1 answer
  • The Boardman family walked two over five of a mile in two over seven of an hour. What is their unit rate in miles per hour?
    11·1 answer
  • In how many ways can 5 question on a true-false test be answered?
    14·1 answer
  • PLEASE HELPPP &gt;&gt;&gt;&gt;&gt; There are twenty classes at Northwestern Middle School and twenty classes at Southeastern Mid
    6·2 answers
  • A jar has 465 M &amp; Ms. There are twice as many blues as reds. There are 8 more green as red. The
    10·1 answer
  • ANS WER AS SOON AS POSSIBLE <br> AND I WILL MARK U AS BRAINLIST
    6·2 answers
  • guess my numbers. the first number is two more than the second number. when I add two times the first number to five times the s
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!