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3 years ago

Can someone help me with questions 14,18,16??

Mathematics

1 answer:

Masja [62]3 years ago

3 0

Answer:

13 all three angles =60 in total they equal 180

14) I believe x = 32.5 Am not sure though.

Step-by-step explanation:

That is the only question i can answer but to help you with this all triangles big or small the total of all the angles combined = 180

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Which point is on the line y = -2x + 3?<br> (-2,-1)<br> (3, -3)<br> (3, 3)<br> (-3,-9)

balandron [24]

Answer:

Hence (3, -3) is on the given line y = -2x + 3

Step-by-step explanation:

For a point on the Line, It must Satisfy the Equation of a line

Therefore for

$y=-2x+3$

For (-2,-1)

Substitute x = - 2 and y = -1 in above equation

Left Hand Side = y

= -1

Right Hand Side = -2 × (-2) +3

= 4 +3

= 7

Left Hand Side ≠ Right Hand Side

Not Satisfied

Hence (-2,-1) is NOT on the given line

For (3, -3)

Substitute x = 3 and y = -3 in above equation

Left Hand Side = y

= -3

Right Hand Side = -2 × (3) +3

= -6 +3

= -3

Left Hand Side = Right Hand Side

Satisfied

Hence (3, -3) is on the given line y = -2x + 3

For (3, 3)

Substitute x = 3 and y = 3 in above equation

Left Hand Side = y

= 3

Right Hand Side = -2 × (3) +3

= -6 +3

= -3

Left Hand Side ≠ Right Hand Side

Not Satisfied

Hence (3,3) is NOT on the given line

For (-3,-9)

Substitute x = -3 and y = -9 in above equation

Left Hand Side = y

= -9

Right Hand Side = -2 × (-3) +3

= 6 +3

= 9

Left Hand Side ≠ Right Hand Side

Not Satisfied

Hence (-3,-9) is NOT on the given line

6 0

3 years ago

Read 2 more answers

Mary bought an antique clock in its first year its value increased by 30% in the second year its value increased by 30% work out

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Answer:

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2 years ago

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