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4 years ago

!!!!Cosines / sines . Find a and round to the nearest 10th.

Mathematics

1 answer:

nadya68 [22]4 years ago

4 0

I think Erica said I messed this one up. It looks the same. Oh yeah I think this was the one I thought $a=1.8=3\sqrt{2}-\sqrt{6}$ , Answer: 1.8.

Let's do it again.

$\dfrac{a}{\sin(180 - (15+105))}=\dfrac{2}{\sin 105^\circ}$

$a = \dfrac{2 \sin(60)}{\sin 105^\circ}$

$a \approx 1.8$

Yes, same as before.

You might be interested in

Calcuate the area and the perimeter or write an expression

Strike441 [17]

Answer:

the perimeter is 152, the area is 910

Step-by-step explanation:

perimeter = 20+50+20+10+6+15+6+25

=152

area = (20×50)-(6×15)

= 1000-90

= 910

hope that helped!

4 0

3 years ago

Read 2 more answers

Divide. Draw a quick picture. 143 divided by 11

Anastaziya [24]

143 divided by 11 equals 13

4 0

4 years ago

Read 2 more answers

PLEASE HELP WITH THIS ONE QUESTION

Snezhnost [94]

Answer:

The fourth option.

Step-by-step explanation:

In the given equation x^2 + 4x + 9 = 0, a=1, b=4, and c=9. The quadratic formula is in the attachment below so if you plug in a, b, and c you get the fourth option.

8 0

3 years ago

HELP!!!!

ch4aika [34]

Answer:

$8 y^{50}$

Step-by-step explanation:

Given (64 y Superscript 100 Baseline) Superscript one-half.

Let us write it into an equation.

$\left(64 y^{100}\right)^{\frac{1}{2}}$

Apply radical rule: $\sqrt[n]{a}=a^{\frac{1}{2}}$ and $a^{m+n}=a^m+a^n$

$\begin{aligned}\left(64 y^{100}\right)^{\frac{1}{2}} &=\sqrt[2]{64 y^{100}} \\&=\sqrt[2]{8^{2} y^{50} y^{50}} \\&=\sqrt[2]{8^{2}\left(y^{50}\right)^{2}} \\&=8 y^{50}\end{aligned}$

Hence, $8 y^{50}$ is equivalent to (64 y Superscript 100 Baseline) Superscript one-half.

8 0

3 years ago

A hotel charges an intial check-in fee of 30$, plus 40$ for each day the room is booked. How many days must the room be booked f

pochemuha

Thats impossible. it will be at least 30 dollars. but one night is 40 dollars

3 0

3 years ago