All categories

3 years ago

27(1-x)(x^2+x+1)+81x(x-1)

Mathematics

1 answer:

morpeh [17]3 years ago

6 0

Step-by-step explanation:

You might be interested in

Two identical metal spheres at 8 °C are put in equal amount of water in two beakers, as shown below.

eduard

Answer:

$\boxed{ \text{The temperature of the water in Beaker A will increase.}}$

Step-by-step explanation:

Heat always flows from a hotter object to a colder one. If heat flows from the sphere to the water, $\boxed{\textbf {the temperature of the water will increase.}}$

A is wrong. If the temperature of the water is greater than 8 °C, heat will flow from the water to the sphere.

B is wrong. If the temperature of the water is lower than 8 °C, heat will flow from the sphere to the water..

D is wrong. If heat flows from the water to the sphere, the temperature of the water will decrease.

5 0

4 years ago

Read 2 more answers

QUESTION 5

Anna [14]

Answer:

$P\cup Q=\{1,\ 2,\ 3,\ 4,\ 5,\ 7,\ 8,\ 9, \ 10,\ 11\}$

Step-by-step explanation:

The union of two sets P and Q, denoted as $P\cup Q,$ is the set of all elements that are in the set P or in the set Q or in both sets P and Q.

Given:

P = {7, 8, 9, 10, 11}

Q = {1, 2, 3, 4, 5}

Then

$P\cup Q=\{1,\ 2,\ 3,\ 4,\ 5,\ 7,\ 8,\ 9, \ 10,\ 11\}$

When writing the union set, simply write all elements from both sets in on set.

4 0

4 years ago

Graph the equations to find the solution(s) to the system <br> y=x+2 <br> y=1/2(x+3)(x−5)

otez555 [7]

Find some coordinates

y=x+2

(0,2)
(-1,1)
(1,3)

y=1/2(x+3)(x-5)

(0,-15/2)
(1,-8)
(-1,-6)

Graph attached

Solutions are

(6,796,8.796)
(-2.796,-0.796)

7 0

2 years ago

What is the answer please??

GalinKa [24]

Answer:

See below

Step-by-step explanation:

Area of a circle = pi * r^2

for this circle : Area = 3.142 * 10 * 10 = 314.2 cm^2

8 0

2 years ago

Read 2 more answers

In the diagram shown, the distance between points A and C is the same as the distance between points B and G.

Over [174]

I believe the answer is parallel

3 0

3 years ago

Read 2 more answers