3 years ago

2cos2+cos2(2)−2cos2cos2=1

1 answer:

8 0

The left side
1.99999925
1.99999925
does not equal to the right side
1
1
, which means that the given statement is false.

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qaws [65]

KE = 1/2(m * v^2)

KE = 1/2(1350 * 12^2)
KE = 1/2(1350 * 144)
KE = 1/2(194,400)
KE = 97,200 Joules

6 0

3 years ago

ElenaW [278]

Really true. just wanting points is not a reason to mess with someone else.

4 0

3 years ago

andrey2020 [161]

Answer: d

Step-by-step explanation:

Find the area of the rectangle.

$A=l*w\\A=(15in)(12in)\\A=180in^2$

Find the area of the base of the semicircle.

$A=\pi r^2$

12 in would be the diameter, divide by 2 to get the radius.

$\frac{12}{2}=6$

Plug this into the formula.

$A=(3.14)(6)^2\\A=113.04in^2$

Since we do not have a full circle but a semi one instead, we must divide our result by 2.

$\frac{113.04}{2}=56.52in^2$

Add both areas.

180+56.52=236.52 $in^2$

7 0

3 years ago

olga_2 [115]

13 m ...?.........;;;;;;;;;

5 0

3 years ago

k0ka [10]

X times parentheses x minus 4 equals 140

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3 years ago

2cos2+cos2(2)−2cos2cos2=1​