All categories

3 years ago

Simplify the following expression. 30 simplified form:

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

any number to the power 0 is 1

erik [133]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Sofia wants to place a sticker 2 ½ inches long in the center of a switch box that is 3 ¾ inches wide. About how far from the edg

Andreas93 [3]

3 3/4 -2 1/2=
15/4-5/2=
15/4-5/2*2/2=
15/4-10/4=
5/4=

5/4 divided by 2 (gives you the distance from the edge if you put the sticker in the center)

5/4 / 2/1=5/8 inches from the edge

I think this is correct. Hope it helps

5 0

3 years ago

What is the measurement of Angle O in parallelogram LMNO. When angle L is (x+40) and angle O is (3x)

I am Lyosha [343]

In a parallelogram, opposite angles are congruent.

This means that the four angles of the parallelogram are:

$L = x+40,\quad M = 3x,\quad N = x+40,\quad O = 3x$

Moreover, the sum of the interior angles of a polygon with n sides is 180(n-2). So, the sum of the interior angles of a parallelogram is 360.

This means

$L+M+N+O = 360 \iff 2(x+40)+2(3x) = 2x+80+6x = 360 \iff 8x = 280 \iff x = 35$

And since $O=3x$ , we have $O=3\cdot 35=105$

3 0

3 years ago

Read 2 more answers

Find the value of x help me pls

goldenfox [79]

Answer:

x=12

Step-by-step explanation:

Since the angle needs to add up to 90, you will first need to subtract 30 from 90. This will leave you with 60. Next you will divide 60 by 5 which will give you 12 which is the answer.

6 0

3 years ago

Read 2 more answers

At time t=0 hours, a tank contains 3000 litres of water. Water leaks from the tank. At the end of every hour there is x% less wa

Margaret [11]

Answer:

x = 2; K = 0.98

Step-by-step explanation:

At time, t = 0, Volume of Water = 3,000 litres

After t hours , the Volume of water in the tank = Vt

At the end of every hour there is a x% less water in the tank then at the start of the hour

After 1 hour, volume of water left Vt = V1

V1 = 3,000 - 3000 × (x/100)

V1 = 3,000 - 30x

After 2 hours, Volume of water left is V2

V2 = (3,000 - 30 x) - (3,000 - 30 x) × (x/100)

V2 = (3,000 - 30 x) - (3000x - 30x²)/100

V2 = {100(3000 - 30x) - x(3000 - 30x)} /100

V2 = {(3000 - 30x)(100 - x)}/100

Recall, V2 = 2881.2

Therefore

{(3000 - 30x)(100 - x)}/100 = 2881.2

(3000 - 30x)(100 - x) = 288120

300000 - 3000 x - 3000 x + 30 x² = 288120

30 x ² - 6000 x + 11880 = 0

Dividing both sides by 30

x² - 200 x + 396=0

Factorizing:

(x -198)(x-2) = 0

x = 198 or x = 2

Since the percentage by which the water reduces cannot be greater than 100, x = 2 is chosen.

Step 2: Solving for k

Given that Vt=KtV0

K = Vt/V0

At t = 1

V1 = 3000 - 30x

V1 = 3000 - 30 × 2

V1 = 3000 - 60

V1 = 2940

K = 2940/3000

K = 0.98

5 0

3 years ago

What is the product of the rational expressions below? 4x/x+6 /times x-8/x-6

Soloha48 [4]

Answer:

Step-by-step explanation:

Multiply the numerators together to get the overall numerator and multiply the denominators together to get the overall denominator. I hope this helps!

5 0

3 years ago