2 years ago

Evaluate -2x + -3y if x = 10 and y = -6

Mathematics

1 answer:

emmasim [6.3K]2 years ago

5 0

-2(10)+-3(-6)

It would be -2

You might be interested in

Evaluate B^2for B=9.

koban [17]

Answer:

Step-by-step explanation:

since b is 9

do 9x9 which is 81

3 0

3 years ago

Prove the following identity.<br> [sin(x+y)+sin(x-y)]/[cos(x+y)+cos(x-y)] = tan(x)

tia_tia [17]

$\frac{sin(x + y) + sin(x - y)}{cos(x + y) + cos(x - y)} = tan(x)$
$\frac{(sin(x)cos(y) + cos(x)sin(y)) + (sin(x)cos(y) - cos(x)sin(y))}{(cos(x)cos(y) - sin(x)sin(y)) + (cos(x)cos(y) + sin(x)sin(y))} = tan(x)$
$\frac{(sin(x)cos(y) + sin(x)cos(y)) + (cos(x)sin(y) - cos(x)sin(y))}{(cos(x)cos(y) + cos(x)cos(y)) + (-sin(x)sin(y) + (sin(x)sin(y))} = tan(x)$
$\frac{2sin(x)cos(y)}{2cos(x)cos(y)} = tan(x)$
$\frac{sin(x)}{cos(x)} = tan(x)$

4 0

2 years ago

Anyone know the answer

Murljashka [212]

Answer:

I DONT KNOW SOORY

Step-by-step explanation:

jbjnmbgkuyhjn

8 0

2 years ago

The sum of a number r and 10 is −2.

luda_lava [24]

R= -12
How?
10-12=-2
I’m so happy to help
You got this

7 0

3 years ago

Read 2 more answers

Which expression is equivalent to 16x^2- 36

matrenka [14]

Answer:

Step-by-step explanation:

16x² - 36 = 4²*x² - 6²

= (4x)² - 6² {a² - b² = (a+b)(a-b)}

= (4x + 6 ) (4x -6)

5 0

3 years ago