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3 years ago

HELP QUICK IM STRUGGLING!:(

Mathematics

2 answers:

snow_tiger [21]3 years ago

4 0

Answer: 6/11 or B

Step-by-step explanation: How you would get this answer is you would take the fraction and see if there is any number you can divide both the denominator + the numerator by if there is not a number that you can divide them both by then it is in simplest form. But, if there IS a number that you can divide them both by then no it is not in simplest form.

I hoped this helped! :)

lukranit [14]3 years ago

3 0

The answer is B hopefully this helped

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Last one lol please help!!!

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

For this problem, we need to find a way to relate the inner circle, to the square, to the outer circle.

Given that we know the area of a circle is πr^2, and our inner circle has a area of 25π, we can find the radius.

25π = πr^2

25 = r^2

5 = r

Note, that the diameter of the inner circle is parallel to the side of the square, meaning that the diameter of the inner circle is the length of the side of the square.

diameter = 2 * radius

d = 2 * 5 = 10.

Now that we know the value of the side of the square, we can find the length of the diagonal of the square, which is the diameter of the outer circle.

Using the properties of the 45-45-90 right triangle, we can say that the diagonal of the square is the length of the side times sqrt(2).

Outer_Diameter = 10 * sqrt(2)

Now to find the outer area, we need the formula for the area of a circle. Note that the diameter is twice the radius, so we will simply divide by 2.

A = πr^2

A = π * [ ( 10 * sqrt(2) ) / 2 ]^2

A = π * [ 5 * sqrt(2) ] ^2

A = π * 25 * 2

A = 50π

So the area of the outer circle is 50π.

Cheers.

5 0

3 years ago

What is the ratio of 2ft 4in to 2 yards? (A) 2.4:2 (wrong) (B) 1:1 (wrong) (C) 7:18 (D) 1:2 (E) 2:9

andriy [413]

Hey there! :)

Answer:

C. 7 : 18.

Step-by-step explanation:

To solve this, we need to convert each of the measurements given to inches:

2 ft 4 in = 28 inches.

2 yard = 6 feet = 72 inches.

Therefore, expressing this as a ratio would give us:

28 : 72

Simplify by reducing by a factor of 4:

7 : 18. This is the ratio in simplest form.

8 0

4 years ago

Shelia eats 3/4 of a bag of baby carrots each week.How many bags of baby carrots does she eat in 6 weeks?Write in simplest form.

Arisa [49]

3/4 x 6 = 18/4 = 4 1/2

She eats 4 1/2 bags of carrots in 6 weeks.

4 0

3 years ago

This diagram shows part of a design made by using toothpicks to form triangles. The top level uses 3 toothpicks. The second leve

Colt1911 [192]

The answer to this problem is simple to find the answer we must see the keywords in the sentence on of is how many which can mean addition/multiplication so here the problem is increasing in a rate of 3 3x1=3
3x2=6 3x3=9 and so on 3x7=21 your answer is 21

6 0

3 years ago

Calculate the number of kilograms of mercury required to fill a pool that is 20.0 m x 50.0 m x 10.0 m. The density of mercury is

malfutka [58]

Answer:

$m=135000000 Kg$

Step-by-step explanation:

To find the number of kilograms of mercury we need to find how to relate density, mass and, volume. For this we shall recall the density formula:

$\rho=\frac{m}{V}$

where $\rho$ is the density, $m$ is the mass and, $V$ is the volume.

We have the density and want to compute the mass so now we want to know the volume of the pool.

The volume of a rectangular pool is given by the fomula:

$V= (length)(heigh)(width)$ .

So for our pool

$V= (20)(50)(10)$ .

$V= 10000m^{3}$ .

Our density is in $g/mL$ , so the last thing we need to do before computing the mass is to express the density in $Kg/m^{3}$ (this is because we want our mass in $Kg$ and, we have our volume in $m^{3}$ ).