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3 years ago

Help me pls really need help

Mathematics

2 answers:

melomori [17]3 years ago

6 0

$10^{3}$ $1 bills is the same as $10 \times 10 \times 10 = 1000$ $1 bills.

You're told that 1000 $1 bills is 4.3 inches tall. That means to get the height of one $1 bill, you have to divide 4.3 inches (the height of 1000 $1 bills) by 1000 (how many bills there are):
$\frac{4.3}{1000} = 0.0043 in$

The thickness of one $1 is C) 0.0043 in.

RSB [31]3 years ago

3 0

A) 43,000

10^3 is the same as 10,000

multiply 10,000 by 4.3=43,000

hopes this helps

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At the park there is a pool shaped like a circle. A ring-shaped path goes around the pool. Its inner diameter is 22yd and its ou

jeka94

First, we need to think about what we're actually solving for: the area of the path. To find this, we can find the area of the whole thing, minus the area of the pool.

The diagram would look something like the picture I attached. We know that to find the area of a circle, you do πr^2. The radius is half of the diameter, so halve the diameters:

22/2 = 11 yards
32/2 = 16 yards

Then solve for the area of both circles.
π $11^{2}$ $= 121$ π ≈ 380.13 (area of the pool)
π $16^{2}$ $= 256$ π ≈ 804.25 (area of the whole thing)

Next, subtract the area of the pool from the area of the whole thing to find the area of the walkway:
$804.25 - 380.13 = 424.12$ (area of the walkway)

Finally, divide the area of the walkway by 6 to see how many gallons of paint you'll need:

424.12 ÷ 6 ≈ 70.69

So you'll need 71 gallons of paint!

Hope I helped and let me know if you have any questions :)

6 0

4 years ago

Pls dont write silly things or ill report. which number in each set is not a factor of the given number:

Allisa [31]

Answer:

a.(4)

b.(45)

Step-by-step explanation:

A factor is a number that divides perfectly without any remainder so you can try to divide each.

For example:

-14/2=7(it's a factor of 14)

-14/4=3.5(it's not factor of 14)

5 0

2 years ago

a cargo ship arrived at Kingston Harbour carrying 403,172 kilograms of flour. All the flour was tranfered to 5 trains and 9 truc

IrinaVladis [17]

Each train carried 64141 kg of flour and each truck carried 9163 kg of flour.

Step-by-step explanation:

Let the no. of kg of flour carried by each train be 'a'

Let the no. of kg of flour carried by each truck be 'b'

Total flour = 403172 kg

No. Of trains = 5

No. of trucks = 9

a = 7(b)

5a + 9b = 403172

5(7b) + 9b = 403172

35b + 9b = 403172

44b = 403172

b = 403172/44

b = 9163

Each truck carried 9163 kg of flour.

a = 7b

a = 7(9163)

a = 64141

Each train carried 64141 kg of flour.

4 0

4 years ago

4. Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.

artcher [175]

Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.

Two lines that intersect at right angles are perpendicular.

A. The statement is not reversible.

B. Yes; if two lines intersect at right angles, then they are perpendicular.

C. Yes; if two lines are perpendicular, then they intersect at right angles.

D. Yes; two lines intersect at right angles if (and only if) they are perpendicular.

Your Answer would be (D)

Yes; two lines intersect at right angles if (and only if) they are perpendicular.

REF: 2-3 Biconditionals and Definitions

6 0

3 years ago

Read 2 more answers

What is the domain and range of f(x)=2x^2+6x+2

lbvjy [14]

As is the case for any polynomial, the domain of this one is (-infinity, +infinity).

To find the range, we need to determine the minimum value that f(x) can have. The coefficients here are a=2, b=6 and c = 2,

The x-coordinate of the vertex is x = -b/(2a), which here is x = -6/4 = -3/2.

Evaluate the function at x = 3/2 to find the y-coordinate of the vertex, which is also the smallest value the function can take on. That happens to be y = -5/2, so the range is [-5/2, infinity).

3 0

3 years ago