3 years ago

9^2= 9.5^2 + 4^2 - 2 (9.5) (4) (cosR) I'm trying to find out the angle measure of R

1 answer:

5 0

Sorry I can't solve it.

Firstly, the equation is wrong. It is supposed to be 81 ≠ 30.25

Second of all, this is the best I got 81= −76 (cos(r) + 106.25

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Help please stat! Brainlist!

Savatey [412]

Answer: 11.71 meters per second.

PLZ CORRECT ME IF I AM WRONG thxs and have a lovely day :)

Step-by-step explanation:

3 0

3 years ago

Can someone please help me I need it ASAP

VLD [36.1K]

We're not supposed to help with exams. This isn't an exam, is it?

A(0)=202, A(37)=half that.

$A(t) = 202 (\frac 1 2)^{t/37}$

$A(100) = 202 (\frac 1 2)^{100/37} \approx 31.0$

Last choice.

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3 years ago

From the top of a cliff, which is 120 meters above the water, tha angle of depression of a boat on the water is 18°. How far is

harina [27]

To find how far the boat is from the bottom of the cliff is you’ll use tan;

Tan18degrees=120/x

x=120/tan18degrees

x=369m

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3 years ago

Plot the intercept 7x-3y=21

kipiarov [429]

First you have to get it to y intercept for which is y=mx+b so you would subtract 7x and bring it to the other side so now u have -3y=7x+21 next u would divide -3 to get y alone so u would have now is y= -7/3x+ 7 then when u graph it the y intercept is 7 so u graph 7 on the y axis and the slope is -7/3 so u would go down 7 and over 3

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3 years ago

What is the inverse of the function f(x) = 2x - 10?

EastWind [94]

F-1(x)=x/2+5
explanation:

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3 years ago