2 years ago

Evaluate. 2x-y when x=5 and y= -5

Mathematics

2 answers:

Elina [12.6K]2 years ago

7 0

$2x - y \\ 2(5) - ( - 5) \\ 10 + 5 \\ 15$

PLEASE GIVE BRAINLIEST

vfiekz [6]2 years ago

3 0

I believe It is 15. Because you have to substitute the x and y values into the equation. 2(5) - (-5). 10-(-5). 10+5=15

You might be interested in

What is the missing angle measurement in the polygon shown below?

Zinaida [17]

Answer:

155 degrees

Step-by-step explanation:

Every 4 angled shape will equal 360

45+130+30+x=360

205+x=360

155=360

6 0

3 years ago

Read 2 more answers

What is the answer cos75 degrees=10/x

vova2212 [387]

To find the answer we simply work out the equation.
cos (75) = 10/x

cos (75) * x = 10. Here, I simply multiplied both sides by x to move x to the left hand side of the equation.

x = 10 / cos (75) Here, I divided cos (75) on both sides to move cos (75) to the right hand side of the equation.

The cosine of 75 is 0.92175127, so, 10 / 0.92175127 = 10.8489137

4 0

3 years ago

Let f(x)=4x+9. Write a function g whose graph is a reflection in the y-axis of the graph of f. g(x)= ?

frez [133]

Answer:

$g(x)=-4x+9$