4 years ago

The table below represents the velocity of a car as a function of time:

1 answer:

8 0

Average rate of change = (f(29) - f(15))/(29 - 15) = (87 - 45)/14 = 42/14 = 3m/s^2

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Serhud [2]

Answer:

Step-by-step explanation:

A) $(tanx-4)(9sin^2x-1)=0\\\\\\$

$9sin^2x-1=0\\\\sin^2x=\frac{1}{9} sinx=\frac{1}{3}$ or $sinx=\frac{-1}{3}$

OR $tanx=4\\$

$3sin2x=3.2.sinx.cosx\\\\6.sinx.cosx-4.sinx= 2sinx.(3cosx-2)=0\\\\3.cosx=2 cosx=\frac{2}{3}$

3 0

3 years ago

coldgirl [10]

(ab+3a+7)- (-5ab-2)
=ab+ 3a+ 7+ 5ab + 2
=3a + 6ab + 9

3 0

3 years ago

Novay_Z [31]

The length of each side of the square actually is 4 units. The area is 16 units squared and the perimeter is is ALSO 16.

4 0

3 years ago

nadya68 [22]

$x-\ number\\\\
7x=3x+12\ \ \ | subtract\ 3x\\\\
4x=12\ \ \ | divide\ by\ 4\\\\
x=3\\\\
Number\ is\ 3.$

5 0

3 years ago

Tom [10]

$10^{-x}=7^{4x}\\
\ln 10^{-x}=\ln 7^{4x}\\
-x \ln 10=4x\ln 7\\
-x \ln 10-4x\ln 7=0\\
x(-\ln 10-4\ln 7)=0\\
x=0$

5 0

4 years ago