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3 years ago

What is the solution to the system of equations? y=3x+1 y=-2x-4

Mathematics

2 answers:

BabaBlast [244]3 years ago

8 0

Answer:

(-1,-2)

Step-by-step explanation:

The solution is where the two lines intersect

The graphs intersect at x=-1, y=-2

(-1,-2)

Gnesinka [82]3 years ago

3 0

Answer:

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

The lines intersect at (- 1, - 2 ) ← solution

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3 years ago

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3 years ago

Read 2 more answers

A road is inclined at an angle of 5°. After

Scorpion4ik [409]

Answer:

464 feet

Step-by-step explanation:

The Sine of the angle of inclination gives the increase in altitude.

This is because the Sine of an angle is equal to the Opposite side divided by the Hypotenuse side. i.e

Sin Ф = Opposite ÷ Hypotenuse

Sin 5° = O ÷ 5328

0·08716 = O ÷ 5328

Make O the subject and multiply every fraction by 5328

(0·08716/1 × 5328)= (O/5328 × 5328)

464·388 = O

∴ The increase in altitude is 464·388 feet

This is supposed to be to the nearest foot so we round off

464·388 becomes 464 feet

3 0

3 years ago