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kipiarov [429]
3 years ago
5

What quantity should be added to both sides of this equation to complete the square x^2+12x=-15

Mathematics
1 answer:
anzhelika [568]3 years ago
5 0

Answer:

36

Step-by-step explanation:

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Calculate the GPA of a student with the following grades: B (77 hours), D (66 hours), F (2020 hours). Note that an A is equivale
d1i1m1o1n [39]

Answer:

The student's GPA is of 0.82.

Step-by-step explanation:

GPA:

To find the student's GPA, we find his weighed mean.

Grades:

7 hours worth 3(B)

6 hours worth 1(D)

20 hours worth 0(F). So

M = \frac{7*3 + 6*1 + 20*0}{7+6+20} = 0.82

The student's GPA is of 0.82.

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2 years ago
Which of the following functions is graphed below ? (:
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C is the answer.  By only looking at the domain (the stuff on the right in the functions), you can see that the first equation has a hole at x=2, meaning it does not have a value here at x=2.  When x<2, there are values for the 1st function.  When x>2, there are values for the second function, as well as when x=2
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3 years ago
A tram travels at 10 km/hr for 2 hours and then at 13 km/hr for 1 hour. Find its average speed
s344n2d4d5 [400]
33km total / 3 hours total = 11 km/hr average
6 0
3 years ago
Catherine sells bags of popcorn at the theatre. The bags come in three sizes.
Nookie1986 [14]

Answer:

The answer is the most reasonable one which I think large is

Step-by-step explanation:

Because it's only 100 grams more and $2 bucks seems like a good deal

6 0
2 years ago
11-Determine the specific heat of a material if a 12-g sample absorbed 96 J as it was heated from 20°C to 40°C. *
kompoz [17]

Answer:

c=0.4\ J/g^{\circ} C

Step-by-step explanation:

Given that,

Mass of a sample, m = 12 g

Heat absobed by the sample, Q = 96 J

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We need to find the specific heat of a material. The heat absorbed by a sample is given by :

Q=mc\Delta T\\\\c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{96}{12\times (40-20)}\\\\=0.4\ J/g^{\circ} C

So, the specific heat of the material is 0.4\ J/g^{\circ} C.

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3 years ago
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