3 years ago

Which expressions simplify to a rational answer? Select each correct answer

Mathematics

1 answer:

taurus [48]3 years ago

7 0

Answer:

first and last one

Step-by-step explanation:

first one would be 12 and last one is 10

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Write declaration statements to declare and initialize two variables: one is an integer variable named age, initialized to 18, a

Fantom [35]

In Java....

int age=18;

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3 years ago

2. Tiangle ABC has vertices A(3, 3), B(2,-4), and c(0, 0). This triangle is rotated 90

Irina18 [472]

I pretty sure it (B) sorry if I’m wrong

5 0

3 years ago

In 2000, the population of a county was 25,300,987. The population decreased at a rate of 2% each year. What was the population

EastWind [94]

Answer: In 2008 the population was 21,525,144

Step-by-step explanation:

You need to use the following formula for Exponential decay:

$P=P_0(1-r)^t$

Where $P_0$ is the initial population in the year 0, $r$ is the rate of decay and $t$ is the time.

In this case, you can identify that:

$P_0=25,300,987\\\\r=2\%\\\\t=8$

Therefore, substituting these values into the formula for Exponential decay, you get:

$P=P_0(1-r)^t\\\\P=(25,300,987)(1-\frac{2}{100})^8\\\\P=21,525,144$

Then, in 2008 the population was 21,525,144

6 0

3 years ago

5x (x - 4) = 0<br> Solve it in standard form

murzikaleks [220]

Answer:

x=0 or x=4

Step-by-step explanation:

5x(x−4)=0

4 0

3 years ago

The diameter of a spherical balloon that is being filled with air is increasing at the rate of 3 inches more than the time, t. W

Harrizon [31]

Answer:

$V=36 \pi$ cubic inches

Step-by-step explanation:

Diameter is increasing at 3 inches more than time, When t = 3

Diameter (d) = 3+3 = 6

d = 6

Radius is HALF of diameter, so

r = 6/2 = 3

Now, the volume of a sphere is given by the formula:

$V=\frac{4}{3}\pi r^3$

Putting r = 3, we get:

$V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}\pi (3)^3\\V=36 \pi$

The volume would be 36π

5 0

3 years ago