Ask question

Ask question

All categories

3 years ago

13

I need help working question 8. I don't understand how to start it

1 answer:

Lina20 [59]3 years ago

8 0

Why don't you first try to use the cosine law to solve for an angle and then make use of the sin law to solve for the remaining angles.

Cosine law

C^2 = A^2 + B^2 - 2AB(cos C)
Solve for cos C, and then take the inverse of the trig ratio to solve for the angle.

Then set up a proportion like you have done using the sin law and solve for another angle. Knowing the sum of all angles in a triangle add up to 180 degrees, we can easily solve for the remaining angle.

You might be interested in

How long can i holdd me pee because my brother is in the bathroom

Tom [10]

Answer: If you sit down and hold your breath you can try to hold it in for a little while more?? If you're standing- awooga rip

7 0

2 years ago

Read 2 more answers

In the expression ax+bx,a is a decimal and b is a fraction. How do you decide whether to write a as a fraction or b as a decimal

mezya [45]

Answer:

f(x) = x^2 - x - 12

Step-by-step explanation:

The function is f(x) = (x + 3)(x - 4), or f(x) = x^2 - x - 12. Here, a = 1, b = -1, and c = -12.

HOPE THIS HELPED ;3

7 0

3 years ago

A company buys printer paper in a box which contains 8 packages. If each package of paper costs 3 dollar, how much does a box of

LenaWriter [7]

3x8= $24 for a box of paper. So, D) 24x12 is the answer. For 12 boxes it would cost $288.

7 0

2 years ago

Read 2 more answers

If 40 is decreased by 60%, what is the new amount?

Kay [80]

Answer:

16

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Stolb23 [73]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Let's solve for value of values of x and y ~

According to Angle sum property of triangles :

$\qquad \sf \dashrightarrow \: 70 \degree + 58\degree + x = 180\degree$

$\qquad \sf \dashrightarrow \: x\degree + 128\degree = 180\degree$

$\qquad \sf \dashrightarrow \:x = 180\degree - 128\degree$

$\qquad \sf \dashrightarrow \: x = 52\degree$

Now, solve for y ~

$\qquad \sf \dashrightarrow \: 70\degree + 49\degree + y = 180\degree$

$\qquad \sf \dashrightarrow \: y + 119 = 180\degree$

$\qquad \sf \dashrightarrow \: y = 180 - 119\degree$

$\qquad \sf \dashrightarrow \: y = 61 \degree$

Now, by the results we got, we can conclude that :

The two triangles are not similar because 70 + 58 + x = 180 means x = 52° and 70 + 49 + y=180 means y = 61°

8 0

1 year ago

Read 2 more answers