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Lubov Fominskaja [6]
3 years ago
12

Steps in how to solve

Mathematics
1 answer:
Alexxandr [17]3 years ago
6 0
First, you replace x with -3. 
It will look like -3/3.
Then you divide and get -1.
You might be interested in
Please answer right away
Ilya [14]

Answer:

6.13

Step-by-step explanation:

Using Sine Law we know that

\dfrac{a}{SinA}=\dfrac{b}{SinB}=\dfrac{c}{SinC}

Using your figure let's assign sides and angles:

A=? B = 60° C = 70°

a = 5 b = ? c = x

If we put that into our formula:

\dfrac{5}{Sin?}=\dfrac{?}{Sin60}=\dfrac{x}{Sin70}

Notice that we have too many unknowns. We need to complete at least one ratio to do this, so how do we do this?

Notice we have 2 angles given, so we solve for the third angle. The sum of all angles in any triangle is always 180°

∠A + ∠B + ∠C= 180°

∠A + 60° + 70° = 180°

∠A + 130° = 180°

∠A = 180° - 130°

∠A = 50°

Now we can use this to solve for x.

\dfrac{5}{Sin50}=\dfrac{x}{Sin70}\\\\\dfrac{(5)(Sin70)}{Sin50} = x\\\\\dfrac{4.6985}{0.7660}=x\\\\6.1338 =x

So the closest answer would be 6.13

5 0
3 years ago
Read 2 more answers
Please answer correctly !!!! Will mark brainliest !!!
Gala2k [10]

Answer:d

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If I ride 3 1/4 miles at 2/5 miles per minute how fast I’m going
Bogdan [553]

To get your answer, you would divide your distance by your speed. You should be going about 1.4 miles per hour.

3 0
3 years ago
Felipe fills an aquarium to a depth of 3/5 meters in 7 1/2 minutes.
dem82 [27]

Answer:

2/25 meters per minute.

Step-by-step explanation:

I believe this is right please correct me if I'm wrong.

6 0
2 years ago
Read 2 more answers
A) The sum of −3x+5 and 7−4x is subtracted from 5x+17.
AlekseyPX
A. -3x+5+7-4x 
  -3x-4x+5+7 
-7x+12 

-7x+12-5x+17 
-7x-5x+12+17
-12x+29

B. -5*(x+2)= -5x-10
-6x-1+ (-5x-10)= -6x-5x-1-10=
  -11x-11

8 0
3 years ago
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