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Svetach [21]
3 years ago
14

3x - 3y = -15 -x + y = 5

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
4 0

Answer:

I don't understand what you're asking. can you put a question on this?

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I’m so confused I need help please!!
shutvik [7]

Answer:

5. 9 8. 2\sqrt{10}

Step-by-step explanation:

a²+b²=c²

so for #5 12²+b²=15²

144+b²=225 (subtract 144 from both sides)

b²=81

b=9

For #8

9²+b²=11²

81+b²=121 (subtract 81 from both sides)

b²=40

b=\sqrt{40}

\sqrt{40}=

2\sqrt{10}

6 0
3 years ago
Read 2 more answers
What additional information is needed to prove the triangles are congruent by SAS ?
Wittaler [7]

Answer: Its EB≅CB

Step-by-step explanation: I took the test

5 0
2 years ago
Write an equation for when k= 1/6
Elden [556K]

Answer:

2/6 - 1/6 = k

Step-by-step explanation:

3 0
3 years ago
PLS HELP!! A student randomly guesses the answers to two true-false questions. Describe and correct the error in finding the pro
Nitella [24]

Answer:

The student was wrong. The probability is actually 1/4.

Step-by-step explanation:

Let's say you have question A and question B. You could have incorrect on A, and incorrect on B. Or, you could have incorrect on A, but a correct on B. Or, you could have an incorrect on B, but a correct on A. Or, both could be correct. <em><u>Since there are 4 different possibilities, the actual probability is 1/4.</u></em>

6 0
3 years ago
Kristin decides to spend at most $50 for a birthday dinner at a restaurant, including a 15% tip.,
Dmitry [639]
0.15x + x <(or equal to) 50
Where x is the meal's cost (no tip included)

50 - 15% = 42.5.
x >(or equal to) 42.50.

(nothing is copied content, I copy pasted a number into the right position, feel free to check it mods)
7 0
3 years ago
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