All categories

3 years ago

Find c.

Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

Answer:

: c2 = a2 + b2 - 2ab cos C

c²=20²+15²-2×15×20×cos50

c²=400+225-600×0.64

c²=241

c=√241=15.5ft

You might be interested in

How is an irrational number different from a rational number

pentagon [3]

A rational number stops and can be turned into a fraction and doesn’t repeat while an irrational number does the opposite

6 0

3 years ago

Use the Distributive Property to simplify the following expression. a: 4(x+2) b; -5(9+x) c: 7(x-3)

ExtremeBDS [4]

<h3>hello!</h3>

=======================================================

The Distributive Property states the following:-

$\longrightarrow\sf{a(b+c)=ab+ac$

Where

$\longrightarrow\sf{a,~b,~and~c~can~be~either~constants~or~variables}$

Now, let's use this property to simplify our expressions.

The first one is

$\bigstar{\underline{\boxed{{4(x+2)}}}$

Simplify by distributing 4:-

$\longrightarrow\sf{4~times~x~+4~times~2}$

Add the products:-

$\longrightarrow\sf{4x+8}$

$\rule{250}{2}$

Solve the next one:-

$\bigstar{\underline{\boxed{\sf{-5(9+x)}}}$

Distribute -5 & add the products:-

$\longrightarrow\sf{-45-5x}$

$\rule{250}{2}$

Solve the last one:-

$\bigstar{\underline{\boxed{7(x-3)}}$

Distribute 7:-

$\longrightarrow\sf{7x-21}$

======================================================

Hope everything is clear; if you need any more explanation/clarification, kindly let me know, and I'll comment and/or edit my answer :)

7 0

2 years ago

Nonsense will be reported!!

Pavlova-9 [17]

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

The required additional information required to prove the Triangles congruent are :

$\qquad \sf \dashrightarrow \: 1. \: X V= FD$

The Triangles will be congruent by HL congruency.

$\qquad \sf \dashrightarrow \: 2. \: MH = MI$

The Triangles are congruent by LL congruency.

$\qquad \sf \dashrightarrow \: 3. \: \angle EDC = \angle VUC$

The Triangles are congruent by HA congruency.

$\qquad \sf \dashrightarrow \: 4. \: \angle J = \angle C$

The Triangles are congruent by LA congruency.

5 0

2 years ago

what would be the ratio of the number of cans to the price at Super Saver and Price Buster if a coupon for $1 off the total purc

DedPeter [7]

It depends how much the cans cost

8 0

3 years ago

i have a pair of red earrings and a pair of silver earrings what is the probability that i will get the pair of red earrings

den301095 [7]

1/4 I think bc there are 2 pairs of each and I total there are four earrings solo

3 0

4 years ago