Answer:
Step-by-step explanation:
Use FOIL method
1) (x +4 )(3x +2) = x*3x + x*2 + 4*3x + 4*2
= 3x² + 2x + 12x + 8
= 3x² + 14x + 8
4) (4x - 1) (2x + 7) = 4x*2x + 4x*7 + (-1)*2x + (-1) * 7
= 8x² + 28x - 2x - 7
= 8x² + 26x - 7
Last week, a family ordered dinner through a local food delivery service. The food was $45. They had a coupon for 15% off the to
1 answer:
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We know area of triangle =
In triangle ABC , AB is the base and BC is the height
Now we find the distance between A and B
Distance formula is
A(0,3), B(7,3)
Distance AB =
= = 7
B(7,3), C(7,7)
Distance BC =
= = 4
area of triangle =
area of triangle =
= = 14