20 is 12.5$ of what number?

Answers

Answer 1

Answer: Asumming you mean "20 is 12.5% of what number?", the answer is 160.

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Multiply (x + 3)(x – 3). A. x2 + 6x + 9 B. x2 – 9 C. x2 + 6x – 9 D. x2 – 6x + 9 I can't focus.

Approximately how long is a leg of an isosceles right triangle that has a hypotenuse of length 14.14 cm? A. 3 cm B. 5 cm C. 7 cm D. 10 cm

Answers

According to the fact that isosceles right triangle with the hypotenuse of 14.14 cm its cathetus should be 9.998 cm, and if we round this number we will get 10 cm. Therefore, the answer is D. 10 cm.

Ellen rotated triangle ABC 90° clockwise around point A to form triangle ACD and rotated triangle ABC 180° clockwise around point A to form triangle ADE.Which transformation should she perform on triangle ADE to ensure that BE ≌ DC?

A. a 90° clockwise rotation around point A
B. a 90° counterclockwise rotation around point E
C. a translation 2 units left
D. a translation 2 units down

Answers

It is a. You didnt load the pic but if you did if you rotated Dc 90 it would complete BE.

We are interested in the dimensions of a certain square. A rectangle has length twice the side of this square and width three units less than the side of this square. If the two areas are equal, what are the square's dimensions (w x h)?

Answers

We don't need the length AND width of the square. One number
will be enough for an answer, because all sides of a square have
the same length. Let's call that number ' M ' (for 'mystery number').

-- The area of the square is M² .

The question says that ...
-- The length of the rectangle is 2M .
-- The width of the rectangle is (M - 3) .

Therefore ...
-- The area of the rectangle is (2M)(M - 3) = 2M² - 6M .

The question also says that ...
-- The areas of the square and the rectangle are equal:

So 2M² - 6M = M²

Subtract M² from each side: M² - 6M = 0

Divide each side by M : M - 6 = 0

Add 6 to each side : M = 6 .

Check:

Assume ... Side of the square = 6

Then ...
Area of the square = 6² = 36 .
Length of the rectangle = (6 x 2) = 12
Width of the rectangle = (6 - 3) = 3
Area of the rectangle = (12 x 3) = 36

36 = 36 yay!

A baker uses a coffee mug with a diameter of 8\text{ cm}8 cm8, start text, space, c, m, end text to cut out circular cookies from a big sheet of cookie dough.What is the area AAA of each cookie?

Give your answer in terms of pi.

A=A=A, equals

\text{cm}^2cm

2

start text, c, m, end text, squared

Answers

Answer:

Step-by-step explanation:

Since the cookies is circular in nature, we will use the formula for calculating the area of circle to calculate the area if each cookies.

Area of each cookies = πd²/4

Given diameter d = 8cm

Area of the cookies = π(8)²/4

Area of the cookies = 64π/4

Area of the cookies = 16π cm²

Answer:

16 pi ^2

Step-by-step explanation:

um yes

Bethany has $3.10 in nickels and dimes. She has a total of 44 coins. What is the value of the nickels Bethany has?$0.90
$1.30
$1.80
$2.60

Answers

0.05n + 0.1d = 3.10
n + d = 44

d = 44 - n

Substituting to the first equation:

0.05n + 0.1(44 - n) = 3.10
0.05n + 4.4 - 0.1n = 3.10
-0.05n = 3.10 - 4.4
n = 26

Obtaining the value of nickels:
26 * 0.05 = 1.3

Therefore, the value of nickels that Bethany has is $1.30

Answer:

b: $1.30

Step-by-step explanation:

trust me

3 - 24 divided by 8 + 4 square

Answers

(3-24) / (8+4)^2
it's written like this right?

(-12) / (12)^2
do the work in the parenthesis first

(-12) / (144)
then square 12

(-1) / 12
simplify by dividing the numerator and the denominator by 12

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What is 2v+7=3 of this equation

Find the equivalent to x^7