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Lostsunrise [7]
3 years ago
9

In which

Mathematics
1 answer:
MrRa [10]3 years ago
7 0
<span>The orthocenter is outside the triangle if it's an obtuse triangle.</span>
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What is the surface area of a cube whose edges are 11 inches long?
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Read 2 more answers
16 POINTS
Marta_Voda [28]
Solve the following system using elimination:
{7 x + 2 y = -19 | (equation 1)
{2 y - x = 21 | (equation 2)

Add 1/7 × (equation 1) to equation 2:
{7 x + 2 y = -19 | (equation 1)
{0 x+(16 y)/7 = 128/7 | (equation 2)

Multiply equation 2 by 7/16:
{7 x + 2 y = -19 | (equation 1)
{0 x+y = 8 | (equation 2)

Subtract 2 × (equation 2) from equation 1:
{7 x+0 y = -35 | (equation 1)
{0 x+y = 8 | (equation 2)

Divide equation 1 by 7:
{x+0 y = -5 | (equation 1)
{0 x+y = 8 | (equation 2)

Collect results:
Answer: {x = -5, y = 8
8 0
3 years ago
What is the sum of 15 and the opposite of 13?
NemiM [27]

Answer:

2

Step-by-step explanation:

15+-13 = 2

4 0
3 years ago
An ancient atifact is 4 time older then an anitque book
amm1812
(antique book age)*4 idrk the question but i hope this helps
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