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

You might be interested in

Which of the equations below is the equation of a line perpendicular to y = 1 over 4 x − 6 that passes through the point (−1, 5)

stiks02 [169]

Answer:

y -5 = -4(x -(-1))

Step-by-step explanation:

because a perpendicular line is the negative reciprocal of the slope. the slope was 1/4, the negative reciprocal of the is -4. then plug into the equation

y-y1 = m (x-x1)

4 0

2 years ago

Write the new equation if the graph of f(x)= 4x^2 + 3 is translated up 4 units.

klasskru [66]

Its impossible to solve this, but i got -47

4 0

2 years ago

Read 2 more answers

(x^2+8x+16)-1-16 what is the vertex form

Colt1911 [192]

Answer:

Use photo math, it will explain it all in different forms

4 0

2 years ago

How do you solve for the quotient of (x^-1) - 1 ÷ x - 1?

Ber [7]

$\bf x^{-1}-1\div x-1\implies \implies \cfrac{1}{x}-1\div x-1\implies \cfrac{\frac{1}{x}-1}{~~x-1~~}\implies \cfrac{~~\frac{1-x}{x}~~}{\frac{x-1}{1}} \\\\\\ \cfrac{1-x}{x}\cdot \cfrac{1}{x-1}\implies \cfrac{-(\begin{matrix} x-1 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix})}{x}\cdot \cfrac{1}{\begin{matrix} x-1 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}\implies -\cfrac{1}{x}\implies -x^{-1}$

3 0

3 years ago

Maria can clean the entire house in two hours. Her sister, Sasha, can clean the house in three hours. How long would it take for

lisabon 2012 [21]

Maria do 1/2 work in 1 hour
Sasha do 1/3 work in 1 hour

Thus,
1/2+1/3=5/6 work in 1 hour
5/6 work in = 1 hour
1 work in =6/5=1.2 hours =72 minutes

3 0

3 years ago