How to solve for 4d-7=25/4

We have to express 0.000065 cm in scientific notation.

Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so we can write large numbers using less digits.

Consider 0.000065 cm = cm

Therefore,   cm is the scientific notation for the given number 0.000065 cm.

Answer:

6.5 x 10^-5 cm

Step-by-step explanation:

DID THIS QUESTION IN SCHOOL

Answer:

y=2/5x + 7

Step-by-step explanation:

First, you have to rewrite 2x-5y=15 to slop intercept form.

To do that you have to first subtract 2x from both side to cancel it out.

2x- 2x-5y= 15 -2x.    

-5y= -2x+15

Next, you divide 5 on both side to leave the y by itself.

y= -2x/-5 + 15/-5

Simplify

y= 2/5x + (-3)                     2/5 is our slope

Now that we found the slope, we need to the y-intercept of line b

y=2/5x + b

To find the y-intercept, we substitue x and y with the coordinates (-10,3)

3= 2/5(-10) +b

Now we just solve for b

3= -4 +b

3-(-4) = b

7=b

Now we have identified that 7 is the y intercept

The full equation is y= 2/5x +7

I hope this helped :)

Answer:

-3/2

Step-by-step explanation:

(5a + 3) / (a^2 - 1) when a = -3, substitute all values of "a" for -3:

(5(-3) + 3) / ((-3)^2 - 1)

(-15 + 3) / (9 - 1)

(-12) / (8)

Simplify:

- 3/2