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3 years ago

Parallelogram:h=5 1/4ft;A=12ft

Mathematics

1 answer:

kogti [31]3 years ago

6 0

Height x base is the formula for parallelogram
5.25 x 12 = 63

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I think it's either C or D but I'm not sure plzzz help me !?!?!?!

Dennis_Churaev [7]

Using th epythagorean theorem.

52^2-48^2= x^2

2704-2304= x^2

400=x^2

x=20

Final answer: D

3 0

3 years ago

I need help with this please!!

vovangra [49]

Answer:

${6x}^{3} + {9x}^{2} - 18x + 3$

Step-by-step explanation:

1. Expand by distributing sum groups. $3x( {2x}^{2} + 5x - 1) - 3( {2x}^{2} + 5x - 1)$

2. Expand by distributing terms.

${6x}^{3} + {15x}^{2} - 3x - 3( {2x}^{2} + 5x - 1)$

3.Expand by distributing terms.

${6x}^{3} + {15x}^{2} - 3x - ( {6x}^{2} + 15x - 3)$

4. Remove parentheses.

${6x}^{3} + {15x}^{2} - 3x - {6x}^{2} - 15x + 3$

5. Collect like terms.

${6x}^{3} + {15x}^{2} - {6x}^{2} ) + ( - 3x - 15x) + 3$

6. Simplify.

${6x}^{3} + {9x}^{2} - 18x + 3$

Thus. the answer is,

${6x}^{3} + {9x}^{2} - 18x + 3$

5 0

2 years ago

Lines C and d are perpendicular. If the slope of line c is -4, what is the slope of line d?

CaHeK987 [17]

The slope of line D is also -4 because the lines are perpendicular.

6 0

3 years ago

Is the sequence 3,6,9,12 geometric? True or false and why

IRINA_888 [86]

This sequence is not a geometric.
It is because, common ratio = 6/3 = 2
9/6 = 1.5

As the ratio's are not same, it is not a G.P

Hope this helps!

7 0

3 years ago

Brian has reduced his cholesterol level by 20% after his last check up. If his original level was 240, what is his cholesterol l

dybincka [34]

Answer:

192

Step-by-step explanation:

20% of 240 is 48

240-48 = 192

8 0

3 years ago

Read 2 more answers