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ira [324]
2 years ago
15

(25 points!!!!!) solve for <2

Mathematics
1 answer:
stiv31 [10]2 years ago
8 0

Step-by-step explanation:

135 = <2 + 86 [exterior angle of triangle is equal to the sum of its oppsite two interior angles]

or, <2 = 135 - 86

so, <2 = 49°

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In a sale normal prices are reduced by 10% natalie bought a pair of shoes in the sale for £54
Nookie1986 [14]

Answer:

60

Step-by-step explanation:

Steps to solve "54 is 90 percent of what number?"

We have, 90% × x = 54

or,  

90/100  × x = 54

Multiplying both sides by 100 and dividing both sides by 90,

we have x = 54 ×  100/90  

x = 60

If you are using a calculator, simply enter 54×100÷90, which will give you the answer.

4 0
2 years ago
I have no clue how to do this!!!
lara31 [8.8K]
Step One
Find z
All triangles have 180 degrees. No exceptions.
z + 47 + 90 = 180      combine like terms on the left.
z + 137 = 180            subtract 137 from both sides
z =  180 - 137        
z = 43 degrees.

Step Two
Use the sine function to find y
Sin(43) = opposite side / hypotenuse
opposite side = 35 

sin(43) = 35 / hypotenuse
hypotenuse = 35 / sin(43)
y = 35/0.6820
y = 51.32 

Solve using cos(x)
Note this problem could have been done in a shorter way.
Cos(47) = adjacent / hypotenuse.
hypotenuse = adjacent / cos(47)
y = 35 / cos(47)
y = 35 / 0.6820
y = 51.32 Both answers agree. It is a good thing to know how to do this question both ways.
5 0
3 years ago
What is 3 = 5x - 12?​
zepelin [54]

Answer:

x = 3

Step-by-step explanation:

3=5x-12

Rearrange the Equation.

5x - 12 = 3

Add 12 to both sides.

5x - 12 + 12 = 3 + 12

Simplify

5x = 15

Divide both sides by 5

5x/5 = 15/5

x = 3

5 0
3 years ago
I need assistance please help
Karo-lina-s [1.5K]
The answer is the third one need any more help let me know
6 0
3 years ago
What is the equation of the line that passes through (-1, 4) and ( 2, -8) written in slope-intercept form?
AfilCa [17]
The answers tell you the y-intercept is zero, so all you need to do is choose the appropriate slope. Since y/x = -4, ...
.. selection A is appropriate.

4 0
3 years ago
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