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
dalvyx [7]
3 years ago
6

What value of c makes the trinomial below a perfect square x2 + 7x + c?

Mathematics
2 answers:
Daniel [21]3 years ago
5 0
We have that
x²<span> + 7x + c
</span><span>Group terms that contain the same variable
</span>(x² + 7x )+ c
<span>Complete the square. Remember to balance the equation 
</span>(x² + 7x+3.5² )+ c-3.5²

Rewrite as perfect squares

(x+3.5)²+ c-3.5²
so
c-3.5² must be zero
c-3.5²=0------- c=3.5²------> c=12.25

the answer is
the value of c must be 12.25

STatiana [176]3 years ago
5 0

Answer:49/4

Step-by-step explanation:

You might be interested in
For what value of x is this equation true? 10x−2(x+6)=52 10x−2(x+6)=52 A x=5 x=5 B x=5 3 4 x=534 C x=7 1 9 x=719 D x=8 x=8For wh
insens350 [35]

Answer:

x = 8

Step-by-step explanation:

10x - 2 (x + 6) = 52

Let X become 8

10 (8) - 2 (8 + 6) = 52

80 - 2 (14) = 52

80 - 28 = 52

52=52

7 0
3 years ago
Which of these relationships would most likely have a NEGATIVE correlation?
Luda [366]
<h3>Answer:  Choice C</h3>

Explanation:

As the person spends more time raking, the number of leaves will go down. Therefore, we have a negative correlation. Such correlations occur when one variable goes up while the other goes down (and vice versa).

The reason why it's considered negative correlation is because the regression line has a negative slope.

This is why choice C is the answer. This assumes that no extra leaves fall on the ground, and we assume that we don't have nearby leaves blow into the yard.

In contrast, something like choice A has both variables go up together. As the temperature rises, so does the ice cream sales. The same goes for choice B. We consider these cases to have positive correlation. Choice D doesn't appear to have any correlation at all. The person's height doesn't have any connection to the number of pets they may have.

3 0
2 years ago
Read 2 more answers
What number is 45% of 245
galina1969 [7]
245 x 0.45 = 110.25

110.25 is your answer


hope this helps
8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!
frozen [14]
A) \frac{2 \frac{1}{4}}{ \frac{1}{2}}
b)\frac{1}{2} • 2 = 1
so \frac{9}{4} • 2 = \frac{9}{2} cups (which is 4 \frac{1}{2} )
5 0
3 years ago
Please helppppp ASAP
zavuch27 [327]

Answer:

for every 1 packet you get 10 plants

for every 1 pound there are 5 cups

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • A soccer ball weighs 6 ounces when fully inflated. Raymond has inflated the ball to 4 2/3 ounces. How many more ounces must be a
    13·2 answers
  • What is the domain of the function shown on the graph?
    8·1 answer
  • Solye for x.<br> 8(x + 1) - 3[X + 4) = 7(2 - x)
    7·1 answer
  • What do these (&gt;, ≥, &lt;, ≤) mean
    12·2 answers
  • Oceanside Bike Rental Shop charges a 16 dollar fixed fee plus 7 dollars an hour for renting a bike. Nancy paid 51 dollars to ren
    7·1 answer
  • This pattern follows the "divide by 2" rule. What is the next number in the pattern?
    7·2 answers
  • Las unidades solo son 1 6 7 o són 167 unidades 6 decimas...No lo entiendo.
    13·1 answer
  • Let U= {1,2,3,4,5,6,7,8,9,10}, A={2,4,6,8} B={1,2,3,4}, C={5,6,9}
    15·1 answer
  • Help me find the value of f(-5)
    15·2 answers
  • Find the amount withheld for Social Security weekly:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!