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vagabundo [1.1K]

2 years ago

11

3a + b/a + 4a if a= 4 and b= -12

1 answer:

Feliz [49]2 years ago

7 0

Replace a with 4 and b with -12

3(4) + -12/4 + 4(4) = 16+-12/4+4*4 = 29

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How do you know the correct order in which to evaluate algebraic expressions?

lys-0071 [83]

In solving algebraic expressions, there is an order in which to solve it.

1) perform the operation inside the parenthesis first
2) then perform the operation with the exponents
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Remember this: PEMDAS for easier recall. (parenthesis, exponents, multiplication, division, addition, subtraction)

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3 years ago

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You want to put some money in a simple interest account. it pays 8% interest annually for 2 years. you would like to earn $500 i

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3 years ago

Please help me struggling

Liula [17]

Answer:

Step-by-step explanation:

find the composition of g(x)=x−1 and h(x)= $\sqrt{x}$

hence we will get,

(g∘h)(x)=g(h(x))= g(x−1)= f(√x)= -1+√x = √x -1

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5 0

2 years ago

A box contains 35 gems, of which 10 are real diamonds and 25 are fake diamonds. Gems are randomly taken out of the box, one at a

USPshnik [31]

Answer:

$Probability = 0.504$

Step-by-step explanation:

Given

$Gems= 35$

$Real = 10$

$Fake = 25$

Required

Determine the probability of selecting two fakes

The probability can be represented as thus: $P(Fake\ and\ Fake)$

Using the following probability formula, we have:

$P(Fake\ and\ Fake) = P(Fake) * P(Fake)$

Each probability is calculated by dividing number of fakes by total number of gems:

$P(Fake\ and\ Fake) = \frac{25}{35} * \frac{25-1}{35-1}$

The minus 1 (-1) represent the numbers of fake and total gems left after the first selection

$P(Fake\ and\ Fake) = \frac{25}{35} * \frac{24}{34}$

$P(Fake\ and\ Fake) = \frac{5}{7} * \frac{12}{17}$

$P(Fake\ and\ Fake) = \frac{60}{119}$

$P(Fake\ and\ Fake) = 0.504$

<em>Hence, the required probability is approximately 0.504</em>

7 0

3 years ago

What is the inverse of y=1/4X-4

madam [21]

Answer is -1/4x+4=-y

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3 years ago