Answer:
x=-52/29
Step-by-step explanation:
-3(42x+46)=-15(-22-9x)
-126x-138=330+135x
-126x-135x-138=330
-261x-138=330
-261x=330+138
-261x=468
x=468/-261
x=-52/29
Answer:
80
Step-by-step explanation:
8+6^2×2
8 + 36 × 2
8+72
80
Answer:
90 degrees
Step-by-step explanation:
angle b is 180-90-56=34 degrees
that means angle c is also 34 degrees.
56+34=90, thus angle BCE is also 90 degrees
Answer:

Step-by-step explanation:
This is what is called the Midsegment Theorem, which states that the relation of a triangle's midpunkt is parallel to the triangle's third side, and the mid-segment length is half the third side length, so you would take half of
and set that expression equal to the midsegment:
2x + 10 = 3x
-2x - 2x
____________

You then plug this back into both expressions above to get the double-segment of 60 and the mid-segment of 30. We can tell this is correct because 30 and 60 are relatively proportional to each other.
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Answer:
sorry
Step-by-step explanation: