2 years ago

If x = 12 and y = 3, what is the value of the following expression?

Mathematics

2 answers:

NeTakaya2 years ago

7 0

The correct answer to the question is 19

Natasha_Volkova [10]2 years ago

6 0

Answer:

A: 19

Step-by-step explanation:

x-8+5y

12-8+(5x3)

12-8+15

4+15

I hope this helps

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P(5,3); y=4x<br><br>if you help me I will be thankful forever pls

horrorfan [7]

Y= -1/4x + 4.25, perdendicular then it must be the opposite of 4x which is -1/4. Then you multiply it with 5 and then add or subtract a number so you can find 3. So -1/4× 5 + 4.25= 3. Here you gooo!

6 0

2 years ago

What is the exact value of tan (StartFraction 5 pi Over 8 EndFraction)

melisa1 [442]

9514 1404 393

Answer:

(d) -√((2+√2)/(2-√2))

Step-by-step explanation:

5π/8 is a 2nd-quadrant angle whose reference angle is greater than π/4. This means the tangent is negative with a magnitude greater than 1. The only reasonable choice is ...

$\displaystyle -\sqrt{\frac{2+\sqrt{2}}{2-\sqrt{2}}}$