3 years ago

Evaluate the expression 18C14

Mathematics

1 answer:

Anton [14]3 years ago

8 0

Answer:

i776

f55

Step-by-step explanation:

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Please help me i need to solve for RS

Sonbull [250]

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Step-by-step explanation:

RV=VU and SW=WT ⇒ $VW=\dfrac{RS+UT}{2}$

So:

$3x+5=\dfrac{2x+15+6x-37}{2}\\\\3x+5=\dfrac{8x-22}{2}\\\\3x+5=4x-11\\^{\qquad-5\qquad-5}\\3x=4x-16\\^{-4x\qquad-4x}\\-x=-16\\^{\div(-1)\quad\div(-1)}\\x=16\\\\RS=2x+15=2\cdot16+15=32+15=47$

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abruzzese [7]

Step-by-step explanation:

$\frac{2}{3} of \: 54 = 36 \\ \\ \frac{1}{6} of \: 54 = 9 \\ 36 + 9 = 45 \\ 54 - 45 = 9$

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3 years ago

The area of a trapezoid is 70.55 square feet. The length of the bases are 11.4 and 5.6 feet. What is the height of the trapezoid

olasank [31]

Answer:

The height is 8.3 feet

Step-by-step explanation:

The area of a trapezoid is calculated using the formula:

Area=½(sum of bases)*height

We substitute area=70.55, and the base lengths 11.4 and 5.6 feet and solve for the height.

$70.55 = \frac{1}{2} (11.4 + 5.6)h$

$70.55 = \frac{1}{2} (17)h$

$70 .55 = 8.5h$

$h = \frac{70.55}{8.5}$

$h = 8.3$

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pav-90 [236]

Count from each point to the x-axis across and go back out the same number on the opposite side of the x-axis

For instance from point d to the x axis is 2 so now start on the xaxis at -5,0 and go up 2 more so the new point for point D would be -5,2

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2 years ago

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Evaluate the expression 18C14​

Evaluate the expression 18C14