4 years ago

A triangle has the following measurements: B=79 degrees a=5ft

1 answer:

6 0

<span>the Law of Cosines </span>b^2=a^2+c^2-2accosB

You might be interested in

kifflom [539]

X divided by 30 because it is going down by 30 percent.. :)

7 0

3 years ago

Anna [14]

25 * 16 = 400 tickets were sold

400 * $15 = $6000 was raised

7 0

3 years ago

kykrilka [37]

3/5 = 6%
0.06 x 2000 = 1200

5 0

4 years ago

anygoal [31]

$AB=\sqrt{(5-(-1))^2+(3-6)^2}=\sqrt{36+9}=\sqrt{45}=3\sqrt5\approx6.71$

4 0

3 years ago

N76 [4]

Answer:

14. -5√30 +3√2

15. 18√5 -30√3

Step-by-step explanation:

You can multiply radicals using ...

(√a)(√b) = √(ab)

And you can simplify radicals using ...

√(a²b) = a√b

_____

14. Using the distributive property, then simplifying the radicals, we have ...

$\sqrt{3}(-5\sqrt{10}+\sqrt{6})\\\\=-5\sqrt{3\cdot10}+\sqrt{3\cdot6}\\\\=-5\sqrt{30}+\sqrt{3^2\cdot2}\\\\=\boxed{-5\sqrt{30}+3\sqrt{2}}$

15. Similarly, ...

$-2\sqrt{15}(-3\sqrt{3}+3\sqrt{5})\\\\=6\sqrt{15\cdot3}-6\sqrt{15\cdot5}\\\\=6\sqrt{3^2\cdot5}-6\sqrt{5^2\cdot3}\\\\=\boxed{18\sqrt{5}-30\sqrt{3}}$

5 0

4 years ago