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maria [59]
3 years ago
12

ASAP PLS! What is 2k^2+3k-13=k^2+15?

Mathematics
1 answer:
shepuryov [24]3 years ago
8 0

2k^2+3k-13=k^2+15

subtract k^2 -15 from each side

k^2 +3k -28=0

(k+7)(k-4)=0

k=-7  k=4

Answer: k= -7,4

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What is the surface area of this triangular prism?
Korolek [52]

258 ft2

Step-by-step explanation:

30 ft2 is one side, and there are 2 sides, so it is 60 ft2

11*5=55

2(6.5*11)=143

added together is 258

6 0
3 years ago
TRUE OR FALSE HELP QUICK
Stolb23 [73]
The answer is true.

For example lets say the numbers given are 1, 5, 9, ...
To find the common difference, you subtract the 1st term from the 2nd term. In this case, we would do 5 - 1, which equals 4.

We must add the common difference to the last term in order to find the next term. Since the common difference is 4, we add 4 to 9, which makes 13. This applies only in the arithmetic sequence.
8 0
4 years ago
Read 2 more answers
Help me pls i cant solve this
Agata [3.3K]

divide both sides by 0.8

6.4/0.8=0.8m/0.8


m=8



6 0
4 years ago
Read 2 more answers
Which statement follows from the given theorem? Theorem: The diagonal of a parallelogram divides it into two congruent triangles
Ivenika [448]

Answer:

SSS

Step-by-step explanation:

the dividing line would give the triangles the same length for one side, the side it divided, and then it says the triangles are congruent, meaning they are both the same triangle.

8 0
4 years ago
I have a different number of kids & can't seem ton find the correct numbers
bija089 [108]
<h3>Answer: </h3><h3>Fred has <u>20 students</u> and Lee has <u>22 students</u></h3>

=============================================================

Work Shown:

L = number of students in Lee's class

F = number of students in Fred's class

Lee has 1.1 times as many students compared to Fred

This means we have this equation

L = 1.1F

Whatever the value of F is, we multiply that by 1.1 to get the value of L

The two amounts L and F add to 42 total students

L+F = 42

1.1F + F = 42 .... replace L with 1.1F

2.1F = 42

F = 42/(2.1)

F = 20 .... Fred has 20 students

L = 1.1*F

L = 1.1*20

L = 22 .... Lee has 22 students

------------

Check:

L+F = 22+20 = 42

this confirms the answer

5 0
4 years ago
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