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3 years ago

Four

Mathematics

1 answer:

damaskus [11]3 years ago

4 0

The probability is 50% for heads, so you should expect 2 heads results

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Which of the following actions would be favored by a government that supports a mercantilist economy?

anygoal [31]

A mercantilism system sought to enrich the country by restraining imports and encouraging exports. So I believe ur answer is gonna be B.

3 0

2 years ago

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Each side of a cube 2.5 cm long. what is the volume?

Firdavs [7]

V ≈ 15.63cm^3

volume of a cube = side × side × side = units^3

Volume = 2.5*2.5*2.5 = 15.63^3

Hoped this helped!

7 0

3 years ago

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If a=2b^3 and b= -1/2c ^-2,express a in terms of c.

ElenaW [278]

Answer:

Part 1) $a=-\frac{1}{4c^6}$

Part 2) $a=-\frac{1}{4c^{-6}}$

Step-by-step explanation:

Part 1) we have

$a=2b^{3}$ ----> equation A

$b=-\frac{1}{2}c^{-2}$ ----> equation B

substitute equation B in equation A

$a=2(-\frac{1}{2}c^{-2})^{3}$

Applying property of exponents

$(x^{m})^{n}=x^{m*n}$

$x^{-m} =\frac{1}{x^{m}}$

$a=2(-\frac{1}{2}c^{-2})^{3}=2(-\frac{1}{2})^3(c^{-2})^{3}=2(-\frac{1}{8})(c^{-6})=-\frac{1}{4c^6}$

therefore

$a=-\frac{1}{4c^6}$

Part 2) we have

$a=2b^{3}$ ----> equation A

$b=-\frac{1}{2c^{-2}}=-\frac{c^{2}}{2}$ ----> equation B

substitute equation B in equation A

$a=2(-\frac{c^{2}}{2})^{3}$

Applying property of exponents

$(x^{m})^{n}=x^{m*n}$

$x^{-m} =\frac{1}{x^{m}}$

$a=2(-\frac{c^{2}}{2})^{3}=2(-\frac{c^{6}}{8})$

simplify

$a=-\frac{c^{6}}{4}$

therefore

$a=-\frac{1}{4c^{-6}}$

6 0

3 years ago

~~~~~~~~~~~`````````````````

bixtya [17]

Answer:

Step-by-step explanation:

(-3/4)x + 9 = (-1/2)x + 8

9 - 8 = (-1/2)x + (3/4)x

1 = (1/4)x

x = 4

y = (-3/4)4 + 9

y = -3 + 9

y = 6

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2 years ago

The list of all factors for 21 is 1, 3, 7, and 21. True or False plz i need help

antiseptic1488 [7]

Answer:

true

Step-by-step explanation:

hope you have a wonderful new year

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3 years ago

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