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ra1l [238]
3 years ago
15

28 points please help and be ture

Mathematics
1 answer:
Vilka [71]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

The first figure is a parallelogram with area (A) calculate as

A = bh ( b is the base and h the perpendicular height )

Here A = 144, b = 16 and h = x, thus

144 = 16x ( divide both sides by 16 )

x = 9

----------------------------------------------------------

The second figure is a trapezium with area (A ) calculated as

A = \frac{1}{2} h (a + b)

where h is the height and a, b the parallel bases

Here A = 480, h = x, a = 37 and b = 27, thus

480 = \frac{1}{2} x (37 + 27) = \frac{1}{2} x × 64 = 32x ( divide both sides by 32 )

x = 15

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Which expression is equivalent to ( 4mn / m^-2n^6)^-2
inn [45]

Here are a few rules with exponents that apply here:

  1. Raising a power to a power: (x^m)^n=x^{m*n}
  2. Dividing exponents of the same base: \frac{x^m}{x^n}=x^{m-n}
  3. Converting negative exponents to positive ones: x^{-m}=\frac{1}{x^m}\ \textsf{and}\ \frac{1}{x^{-m}}=x^m

Firstly, solve the outer exponent:

(\frac{4mn}{m^{-2}n^{6}})^{-2}=\frac{4^{-2}m^{-2}n^{-2}}{m^{-2*-2}n^{6*-2}}=\frac{4^{-2}m^{-2}n^{-2}}{m^4n^{-12}}

Next, divide:

\frac{4^{-2}m^{-2}n^{-2}}{m^4n^{-12}}=4^{-2}m^{-2-4}n^{-2-(-12)}=4^{-2}m^{-6}n^{10}

Next, convert the negative exponents:

4^{-2}m^{-6}n^{10}=\frac{n^{10}}{4^2m^6}=\frac{n^{10}}{16m^6}

<u>Your final answer is n^10/16m^6 , or B.</u>

8 0
4 years ago
What is 3/5 2/3 and 0.65 from least to greatest
Anna35 [415]
3/5 = 9/15 = 36/60

2/3 = 10/15 = 40/60

0.65 = 65/100 = 13/20 = 39/60

Therefor, the answer is 3/5, 0.65, 2/3.





4 0
4 years ago
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How much medicine should he add to the food?​
quester [9]

Answer:

Paul should give 18 teaspoons of medicine to his dog.

Step-by-step explanation:

It is stated in the question that for every 12 pounds, 3 teaspoons of medicine is to be given to the dog.

This implies that:

12 pounds = 3 teaspoons

1 pound = 3/12 teaspoons

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<h3>72 pounds = 1/4 * 72 teaspoons</h3><h3>                   = 18 teaspoons</h3><h3 />

Hence, Paul should add 18 teaspoons of medicine to his dog's food.

3 0
3 years ago
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Paladinen [302]

Answer:

Step-by-step explanation:

Which Method Should Be Used to Solve a Quadratic Equation? Quadratic equations are of the form ax2 + bx + c = 0 where a, b and c are real numbers, a ≠ 0. Quadratic equations have two solutions, but it is possible that one solution may repeat. happy to help

3 0
3 years ago
What is this? I’m too dumb.
gavmur [86]

Answer:

its 35

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and 36 minus 1 is 35

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6 0
3 years ago
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