3 years ago

Given: ΔABC; b= 10; c = 14, and ∠A = 54°. Find the length of side a to the nearest whole number.

1 answer:

5 0

A² = b² + c² - 2bc cosA
a² = 10² + 14² - 2*10*14 cos54
a² = 100 + 196 - 280 * cos54
a = $\sqrt{100 + 196 - 280 * cos54}$
a = 11.46

You might be interested in

Rafael has 3 times as many blue marbles as he does red marbles . He has a total of 124 marbles. How many read marbles and how ma

34kurt

<span>A quarter of the marbles are red, so there are 124/4 = 31 red marbles. The rest are blue, so there are 124 - 31 = 93 blue marbles.</span>

6 0

3 years ago

What is the area of the figure? A) 18 in2 B) 24 in2 C) 30 in2 D) 36 in2

Annette [7]

Hello!

You need to separate this into two rectangles and add their areas together

first rectangle

3 * 6 = 18

rectangle 2

3 * 2 = 6

18 + 6 = 24

the answer is 24in squared

5 0

3 years ago

Read 2 more answers

N 25 hour, Matt can type 45 page. <br><br> What is Matt's rate in pages per hour?

Kryger [21]

You can divide 45 by by 25 to get the pages per hour and it’s 1.8

5 0

2 years ago

What is the slope of the line that passes through the point 3,5 and -2,2

Nostrana [21]

Answer:

3/5

Step-by-step explanation:

Slope=

$\frac{y2 - y1}{x2 - x1}$

slope =

$\frac{2 - 5}{ - 2 - 3}$

$\frac{3}{5}$

8 0

3 years ago

This means we increase the x value by 1.

velikii [3]

Answer:

The answer is option C, that is, (2,6)

6 0

3 years ago