Classify the following triangle as acute

I really need help with this I think its Igneous Rock but I'm not so sure... THANKS

dimaraw [331]

Answer:

That is igneous

Step-by-step explanation:

7 0

2 years ago

In ΔABC, the lengths of a, b, and c are 22.5 centimeters, 18 centimeters, and 13.6 centimeters, respectively.

Irina-Kira [14]

Given the values of the three sides of the triangle, we can apply the Cosine Law to find the angles of the triangle. Recall that for we can express the value of c through the equation below.

$c^{2} = a^{2} + b^{2} - 2abcosC$

Rearranging this equation, we can find the value ∠C as shown below.

$\cos C = \frac{a^{2}+b^{2}-c^{2}}{2ab}$
$C = cos^{-1} (\frac{a^{2}+b^{2}-c^{2}}{2ab})$

We can apply the same reasoning for finding the value of ∠B as shown.

$B = cos^{-1} (\frac{a^{2}+c^{2}-b^{2}}{2ac})$

Plugging in the values of the sides (see image attached) from the given. It will now be straightforward to compute for ∠B and ∠C.

$C = cos^{-1} (\frac{22.5^{2}+18^{2}-13.6^{2}}{2(22.5)(18)})$
$C \approx 37.19$

$B = cos^{-1} (\frac{22.5^{2}+13.6^{2}-18^{2}}{2(22.5)(13.6)})$
$B \approx 53.13$

Answer: ∠C = 37.19° and ∠B = 53.13°

7 0

3 years ago

Read 2 more answers

A baseball player get on base seven times and strikes out five times during the tournament. What is that experimental have abili

SOVA2 [1]

First you have to make the assumption that these are the only two outcomes. There is also the possibility of hitting the ball and getting out.

However, if we assume that these are the only two cases, we know that the probability is 58.3%. This is because it has been on base 7 times out of 12.

6 0

2 years ago

7p-(3p+4) = -2(2p-1)+10 Please answer!!!!!!!

Zanzabum

P=2
Work:
7p−(3p+4)=−2(2p−1)+107p−(3p+4)=−2(2p−1)+107p+−1(3p+4)=−2(2p−1)+107p+−1(3p)+(−1)(4)=−2(2p−1)+107p+−3p+−4=−2(2p−1)+107p+−3p+−4=(−2)(2p)+(−2)(−1)+107p+−3p+−4=−4p+2+10(7p+−3p)+(−4)=(−4p)+(2+10)4p+−4=−4p+124p−4=−4p+124p−4+4p=−4p+12+4p8p−4=128p−4+4=12+48p=168p8‌=‌168‌p=2

Hope this helps:)

8 0

3 years ago

Read 2 more answers

A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve an equation to find the

rusak2 [61]

(553-265)/48=6
6 hours spent repairing the car

8 0

2 years ago