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klasskru [66]
3 years ago
10

Solving systems of three equations w/ elimination

Mathematics
1 answer:
Feliz [49]3 years ago
8 0
I solved with addition elimination, and matrices elimination and received the same answer. (0,0,-3) I hope that helps.
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S(3x – 7) + 5x = 8x + 1<br><br>x=​
sergiy2304 [10]

Answer:  -7s=1

Step-by-step explanation: Hope this helps

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5 0
2 years ago
for positive acute angles A and B it is known that cos A = 40/41 and tan B = 5/12. find the value of sin(A-B) in simplest form
Oxana [17]

Answer:

33/16 hope this helps

Step-by-step explanation:

3 0
3 years ago
Can you help me find length bc please!!!!
masya89 [10]

Remark

You are dealing with a right angle triangle. You can use one of Sin(x) Cos(x) or Tan(x). Since the Hypotenuse is involved and since you are given the adjacent side, Cos(71) is what you will need.

Solution

H = BC

Cos(x) = adjactent / hypotenuse

Cos(71) = 6.3 / H            Multiply both sides by H

H * Cos(71) = 6.3            Divide by Cos(71)

H = 6.3 / cos(71)             Cos(71) = 0.32557

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6 0
3 years ago
Which of the following phrases are inequalities?
aev [14]

Answer:

B, C, and D

Step-by-step explanation:

They have an either a less than sign ( < ) or a greater than sign ( > ).

4 0
3 years ago
The Zoo charges $14 per visit for non-members. To become a member of the Zoo you will be charged a $36 one-time fee $2 per visit
AleksandrR [38]

Answer:

7

Step-by-step explanation:

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