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
zavuch27 [327]
3 years ago
10

What are the values of c makes x^2 + 6x + c a perfect square trinomial? 3 6 9 12

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

<h2>c = 9</h2>

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\\\\\text{We have}\ x^2+6x+c=x^2+2(x)(3)+c\\\\\text{Therefore}\ c=3^2=9\\\\x^2+2(x)(3)+3^2=(x+3)^2

You might be interested in
Previous studies on sleep tendencies report that, on average, an adult American will sleep for 6 hours each night with a standar
Tom [10]

Answer: One sample z test for means

Step-by-step explanation:

From the information given, the sample size is large. It is greater than 30. Again, the population standard deviation is given. This means that the test statistic would be the z score which is determined by the formula

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = population standard deviation

The probability value would be determined from the normal distribution table.

Therefore, the hypothesis test that should be used is

One sample z test for means

7 0
3 years ago
Please helppp
Roman55 [17]

Answer:

Step-by-step explanation:

To copy an angle we follow the following steps,

1). Draw a working line with the help of a straightedge.

2). Now we put a point S as the vertex of the angle.

3). Construct an arc with a radius 'r' (any length ) from vertex S which intersects the working line say at V.

4). With the same radius we draw an arc from point E which intersects the line ED and EF at G and H respectively.

5). Mark an arc from point G which intersects line EF at I.

6). Measure the distance between points G and I with compass and mark an arc from point V which intersects the previous arc say at U.

7). Now join the points S and U.

Hence we copy any angle.

7 0
3 years ago
Can help me IDK how to do ​
Dafna11 [192]
The correct answer is one doughnut cost 2$
7 0
3 years ago
List the sides of each triangle from shortest to greatest
True [87]

A) First, we need to calculate x. We can do this by doing: 180-(70+50), which is nothing but 60.

Since the largest angle is 60, it means that the side opposite of it is the largest side. Which in this case, side AB.

So the largest side is AB.

Now, let's take a look at the smallest angle which is <B, because AC is the opposite of this angle, it must also be the smallest side.

We're left with angle <50, which is "medium" sized? Obviously, this can just be put in the middle (Side BC)

So, for response A, you should get AC, BC, AB.

Now for problem B, it's the same steps we did above. If you replicate what we did you should get PQ, PR,RQ.

Please let me know how I did.

Happy studying!

3 0
3 years ago
NEED HALP!!! Find the ordered pair $(s,t)$ that satisfies the system
satela [25.4K]

Answer:

(-8/7 ; 5/7)

Step-by-step explanation:

5t + 1/2s = 3 - - - (1)

3t - 6s = 9 - - - - - (2)

Multiply (1) by 12 and (2) by 1

Add the result to eliminate s

60t + 6s = 36

3t - 6s = 9

____________

63t = 45

t = 45 / 63

t = 5/7

Put t = 5/7 in either (1) or (2) to obtain the value of s

3(5/7) - 6s = 9

15/7 - 6s = 9

-6s = 9 - 15/7

-6s = (63 - 15)/7

-6s = 48/7

s = 48/7 * - 1/6

s = - 8/7

5 0
2 years ago
Other questions:
  • How do you solve this system by substitution. Y= -5x+3<br> -x-7y=13
    8·1 answer
  • Which fractions are equivalent to -4/9  ?
    6·1 answer
  • The lines shown below are perpendicular. If the green line has a slope of 2/5 what is the slope of the red line
    10·1 answer
  • What is the opposite of negative one divided by seven
    15·1 answer
  • Carlos and Maria drove a total of 233 miles in 4.4 hours. Carlos drove the first part of the trip and averaged 55 miles per hour
    15·1 answer
  • 14 people share 6 sandwiches how much each?
    12·2 answers
  • The red team scored 4 goals. The blue team scored 3 times as many goals.How many goals did the blue team score?
    9·2 answers
  • 4. Which of the following is a characteristic of a current liability? (1 point)
    12·1 answer
  • What does p equal in the following sentence: The product of 1/4 and P is negative 2?
    7·1 answer
  • Whoever answers correctly gets brainliest
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!