PLEASE ANSWER ASAP! REALLY IMPORTANT! MUST BE CORRECT! POINTS GIVEN!

Answers

Answer 1

Answer: - 5/12 + ( - 1/4) =

Adding two negatives results in a negative

-1/4 = -3/12

-3/12 + -5/12 = -8/12

-8/12 + 3/12 < Subtract and take the sign of the BIGGER number.

8 - 3 = 5

- 5/12

Answer: - 5/12

Answer 2

Answer:
-5/12 - 1/4 + 3/12

To add fractions, they must all have the same denominator.
Change the -1/4 to twelfths:

   -1/4 = -3/12 .

So now the problem is

   - 5/12 - 3/12 + 3/12

Notice that the -3/12 and the +3/12 knock each other out,
and all you're left with is
   - 5/12 .

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NEED QUICKLY!!!!
-Please solve the image below

Answers

Yes,this is a doozy.

   -3 (y - 5) = 15

Eliminate the parentheses on the left side:

   -3(y) -3(-5) = 15

   -3y + 15 = 15

Subtract 15 from each side:

   -3y = 0

Divide each side by -3 :

      y = 0

What's the lowest common multiple of of 2.2 and 5

Answers

Hey there, just multiply 2.2 by 5, 2.2×5=11. Therefore, the lowest common multiple of 2.2 and 5 is 11.

[CALCULUS] [HELP PLEASE]7. The edge of a cube was found to have a length of 50 cm with a possible error in measurement of 0.1 cm. Based on the measurement, you determine that the volume is 125,000 cm^3. Use tangent line approximation to estimate the percentage error in volume.

0.6%
0.9%
1.2%
1.5%
1.8%

A point on a damped spring has motion given by s(t)=2e^(-1.5t) s in(2(pi)t), where s is measured in centimeters and t is measured in seconds. Choose which of these is the graph for the velocity function for 0 < or equal to t < or equal to 4

Answers

Answer:

(7)

error percentage is 0.6%

(8)

Graph-C

Step-by-step explanation:

(7)

we are given cube

Let's assume edge of cube =x

so, volume of cube will be

$V(x)=x^3$

we are given

V=125000

so, we can find 'x'

$125000=x^3$

$x=50$

So,

$a=50$

now, we can use linear approximation formula

$L(x)=V(a)+(x-a)V'(a)$

$L(x)=V(a)+(\Delta x)V'(a)$

we have

$\Delta x=0.1$

we can plug a=50

$L(x)=V(50)+(0.1)V'(50)$

$V(x)=x^3$

we can find derivative

$V'(x)=3x^2$

now, we can plug x=50

$V'(50)=3(50)^2$

$V'(50)=7500$

now, we can plug these values

and we get

$L(x)=V(50)+(0.1)* 7500$

$L(x)=V(50)+750$

$L(x)-V(50)=750$

so, error is

$error=750$

now, we can find percentage error

Percentage is

$=(750)/(125000)* 100$

=0.6%

so, error percentage is 0.6%

(8)

we are given

$s(t)=2e^(-1.5t)sin(2\pi t)$

We will find derivative

To get velocity , we will find derivative

$s'(t)=(d)/(dt)\left(2e^(-1.5t)\sin \left(2\pi t\right)\right)$

we can use product rule

and we get

$s'(t)=-3e^(-1.5t)sin(2\pi t)+4\pi e^(-1.5t) sin(2\pi t)$

so, we get velocity equation as

$v(t)=-3e^(-1.5t)sin(2\pi t)+4\pi e^(-1.5t) sin(2\pi t)$

now, we can draw graph

we can see that firstly , we get maxima and then minima

so, our graph would be

graph-C........Answer

What is 8-4/5f>-14-2f

Answers

8-4/5f>-14-2f

(subtract 8 on both sides)

-4/5f>-22-2f

(add 2f on both sides)

6/5f>-22

(divide 6/5 on both sides)

f>-55/3(-18.33)

$8-(4)/(5)f>-14-2f\ \ \ \ \ |\cdot5\n\n40-4f>-70-10f\n\n-4f+10f>-70-40\n\n6f>-110\ \ \ \ \ |:6\n\nf>-(110)/(6)\n\nf>-(55)/(3)\n\nf\in(-(55)/(3),\infty)$