What is 2/5 percent equal to

Answers

Answer 1

Answer: 2/5 percent is equal to 0.004 .

2/5 is equal to 0.4 .

Answer 2

Answer: 2/5 percent equals 40,you can divide 2 by 5 and get .4 and then move the decimalover 2 places and get 40%

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Which fraction, decimal number, and percent are equivalent? A. 2/5, 0.40, 40% B. 2/4, 0.92, 34% C. 125/1,000, 0.04, 87%
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Use the photo, please help me with 3a and please show work

Subtract 3a^2+5ab−4b^2 from 8a^2−6ab+4b^2

Answers

Answer:

$\large\boxed{(8a^2-6ab+4b^2)-(3a^2+5ab-4b^2)=5a^2-11ab+8b^2}$

Step-by-step explanation:

$(8a^2-6ab+4b^2)-(3a^2+5ab-4b^2)\n\n=8a^2-6ab+4b^2-3a^2-5ab-(-4b^2)\n\n=8a^2-6ab+4b^2-3a^2-5ab+4b^2\qquad\text{combine like terms}\n\n=(8a^2-3a^2)+(-6ab-5ab)+(4b^2+4b^2)\n\n=5a^2-11ab+8b^2$

Is 7/9 greater than 2/3

Answers

2/3 is the same as 6/9 .

So now you can see that 7/9 is greater.

7/9 = 0.777777........

2/3 = 0.666666........

So the answer is yes, 7/9 is greater than 2/3.

Identify the polygon that is the shape of the United States flag.

Answers

Answer:

rectangle

Step-by-step explanation:

Polygons are named according to the number of sides and angles they have. The most familiar polygons are the triangle, the rectangle, and the square. A regular polygon is one that has equal sides. Polygons also have diagonals, which are segments that join two vertices and are not sides.

32546455 rounded to the nearest hundred

Answers

The answer is 32,546,500.

The answer to 32,546,455 is 32,546,500 because 5 or more raise its score and 4 and less let it rest.

10. Make Sense and Persevere The flag of theBahamas includes an equilateral triangle. The
perimeter of the triangle is P= 3s, where s is
the side length. Solve for s. Use your formula to
find the dimensions of the flag in feet and the
area in square feet when the perimeter of the
triangle is 126 inches.

Answers

Answer:

$s=(P)/(3)$
Dimensions of the flag:

$lenght=6.65\ ft\n\nwidth=3.5\ ft$

Area of the flag: $23.275\ ft^2$

Step-by-step explanation:

The missing figure of the exercise is attached.

We know that the perimeter of the triangle is given by:

$P= 3s$

Where "s" is the side lenght of the triangle.

Solving for "s", we get:

$s=(P)/(3)$

Therefore, if the perimeter of the triangle is 126 inches, its side length is:

$s=(126\ in)/(3)\n\ns=42\ in$

Since $1\ ft=12\ in$ , we know that "s" in feet is:

$s=(42\ in)((1\ ft)/(12\ in))=3.5\ ft$

The area of a rectangle can be calculated with this formula:

$A=lw$

Where "l" is the lenght and "w" is the width

We can observe in the figure that the lenght and the width of the flag are:

$l=1.9s\nw=s$

Then, the dimensions of the flag are:

$l=1.9(3.5\ ft)=6.65\ ft\nw=3.5\ ft$

And the area is:

$A=(6.65\ ft)(3.5\ ft)=23.275\ ft^2$

A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result.More than three twos.

A.

0.433

B.

0.564

C.

0.905

D.

0.403

Answers

Answer:

Probability (P) (k successes out of n trials) = nCk * p^k * (1-p)^(n-k), where nCk = n! / (k! * (n-k)!)

for this problem n=20, p = 1/6(probability of rolling 1 two) is approximately 0.1667

P ( of getting more that 3 two's) = 1 -P(0 two's out of 20 trials) -P(1 two out of 20 trials) -P(2 two's out of 20 trials) -P(3 two's out of 20 trials)

P ( of getting more that 3 two's) = 1 -0.026 -0.104 -0.198 -0.238 = 0.434

My answer is A

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