1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
12

How to find angle measures of a triangle with side lengths?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0
<span>Step 1: Begin by using the cosine rule to find the largest angle.
Step 2: Use the sine rule to find one of the remaining angles.
<span>Step 3: Use the 'sum of internal angles' rule to find the third angle... The sum of the internal angles equals 180º
</span></span>

The sum of the internal angles equals 180º ...

<span>A + B + C = 180º</span>


You might be interested in
Find the exact length of the third slide 4 and 3
Mariulka [41]

Answer:

5

Step-by-step explanation:

4^2+3^2=c^2

16+9=25

square root of 25 is 5

8 0
3 years ago
Read 2 more answers
Simplify the expression to a polynomial in standard form: (4x-3)(-2x^2-7x-5)
Brums [2.3K]

How to solve your problem

(4−3)(−22−7−5)

(4x−3)(−2x2−7x−5)(4x-3)(-2x^{2}-7x-5)(4x−3)(−2x2−7x−5)

Simplify

1

Distribute

(4−3)(−22−7−5)

(4x−3)(−2x2−7x−5){\color{#c92786}{(4x-3)(-2x^{2}-7x-5)}}(4x−3)(−2x2−7x−5)

4(−22−7−5)−3(−22−7−5)

2

distribute

4(−22−7−5)−3(−22−7−5)

4x(−2x2−7x−5)−3(−2x2−7x−5){\color{#c92786}{4x(-2x^{2}-7x-5)}}-3(-2x^{2}-7x-5)4x(−2x2−7x−5)−3(−2x2−7x−5)

−83−282−20−3(−22−7−5)

3

−83−282−20−3(−22−7−5)

−8x3−28x2−20x−3(−2x2−7x−5)-8x^{3}-28x^{2}-20x{\color{#c92786}{-3(-2x^{2}-7x-5)}}−8x3−28x2−20x−3(−2x2−7x−5)

−83−282−20+62+21+15

4

Solution

−83−222++15

I know this looks like a lot but its just how you solve your problem.

therefor, your answer is

Solution

−83−222++15

<em>Hope this helps!</em>

<em>Have a great day!</em>

<em>-Hailey</em>

6 0
3 years ago
A car traveling at a certain speed will travel 76 feet per second. How many miles will the car travel in 3.1 hours if it maintai
murzikaleks [220]
\sf  \frac{76~ feet}{1~second} \times  \frac{1~mile}{5280~feet} \times  \frac{3600~seconds}{1~hour} =  \frac{51.82~miles}{hour}

51.82 miles in one hour, so 51.28 x 3 = <span>155.46 miles in 3 hours.

Your answer is </span><span>155.46 miles in 3 hours.</span>
6 0
3 years ago
I need help with this one math question please!
den301095 [7]

Answer:

see explanation

Step-by-step explanation:

Assuming the fractions are being multiplied

Factorise the denominators of both fractions

x² - 3x - 10 = (x - 5)(x + 2)

x² + x - 12 = (x + 4)(x - 3)

The product can now be expressed as

\frac{x-5}{(x-5)(x+2)} × \frac{x+2}{(x+4)(x-3)}

Cancel (x - 5) and (x + 2) on the numerators/ denominators, leaving

\frac{1}{(x+4)(x-3)} = \frac{1}{x^2+x-12}

3 0
3 years ago
a class voted for either rollerblading, swimming, or biking as their favorite summer activity. if rollerblading got 21% percent
Sauron [17]

Answer:  39% voted for biking

Step-by-step explanation:

Add the other two percentages and subtract from 100

40 + 21 = 61

100 - 61 = 39

8 0
3 years ago
Other questions:
  • Geometry math question please help
    8·1 answer
  • Contrast the way boys and girls are treated in Pakistan, beginning at birth. Malala’s father places her name on the family tree.
    11·1 answer
  • Which function's graph is shown below?
    12·2 answers
  • I really need help :( I would really appreciate it:)
    15·1 answer
  • A farmer collected 12 dozen eggs from her chickens. She sold 5/ of the eggs at the farmer's market, and gave the rest to friends
    9·1 answer
  • My brother is 4 times as old as I am. Six years from now, he will be twice as old as I will be. How old is my brother now?
    10·2 answers
  • Puede un ángulo obtuso tener dos ángulos iguales porque
    10·1 answer
  • if i drive 118.3 miles and my cars miles to gallon is 26.8 how many times would i have to fill up my tank?
    15·2 answers
  • Can someone help me pls!
    5·2 answers
  • Which of the following best describes the number shown below?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!