malilajevans malilajevans

07-04-2020
Mathematics

contestada

Find the measure of the angle between two forces of 30 pounds and 35 pounds if the magnitude of their resultant is 42 pounds

Respuesta :

acerx5225 acerx5225

10-04-2020

Answer:

80 degrees

Step-by-step explanation:

42^2=30^2+35^2-2(30)(35)cosx

1764=2125-(2100)(cosx)

-361= -2100cosx

-361/-2100=cosx

0.1719047619=cosx

cos^-1x=80.10141556

Round off to the nearest degree=80

Answer Link

27-10-2020

Answer:

100 degrees

Step-by-step explanation:

30^2+35^2-2*30*35cos80

=42

180-80=100

Answer Link

Otras preguntas

Add lunch five friends share three pizzas equally what fraction of the pizza does each friend get

How many times does the graph of 4x = 32 - x2 cross the x-axis? 0 1 2 What are the solutions to the equation?

Jeff had $20. He spent 1/8 of his money on lunch and 2/5 of his money at the movies. How much money does Jeff have left?

what percent of 80 is 56

The length of a rectangle is 5 more than 2 times its width. The perimeter is 40 inches. What is the width of the rectangle?

Which of the following is normally the longest-lived reservoir for carbon?a. atmosperic CO2b. marien plankton (primary producers consumers)c. fossil fuelsd. woo

Which of the following was true before the Social Security Act of 1925?

How many ounces are there in 13.5 pounds

what is the formula for percent yield

In the space provided, write whether the verb in sentence is active voice or passive voice. Jeans and T-shirts are sometimes preferred by younger people.