3 years ago

How to use order of operation in 20 divide by 4 multiply 5 = 1

Mathematics

1 answer:

I am Lyosha [343]3 years ago

6 0

Use PEMDAS. 20/(4*5)=1
Multiplication before dividion

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Dave collects U.S. gold coins. He has collection of 48 coins. Some are $10 coins, and the rest are $20 coins. If the face value

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3 years ago

Joan multiplied 9.1 by 0.001. The product will be greater than which value? A. 9.0 B. 0.90 C. 0.090 D. 0.0090

aivan3 [116]

I'm guessing 9.1 is a typo and it's suppose to be 9.0. In that case, the answer is D

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3 years ago

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3 years ago

Convert the equation y= -4x + 2/3 into general form equation and find t the values of A,B and C.

alukav5142 [94]

Answer:

Standard form: $12x+3y-2=0$

A = 12, B = 3 and C = -2

Step-by-step explanation:

Given:

The equation:

$y= -4x + \dfrac{2}3$

To find:

The standard form of given equation and find A, B and C.

Solution:

First of all, let us write the standard form of an equation.

Standard form of an equation is represented as:

$Ax+By+C=0$

A is the coefficient of x and can be positive or negative.

B is the coefficient of y and can be positive or negative.

C can also be positive or negative.

Now, let us consider the given equation:

$y= -4x + \dfrac{2}3$

Multiplying the whole equation with 3 first:

$3 \times y= 3 \times -4x + 3 \times \dfrac{2}3\\\Rightarrow 3y=-12x+2$

Now, let us take all the terms on one side:

$\Rightarrow 3y+12x-2=0\\\Rightarrow 12x+3y-2=0$

Now, let us compare with $Ax+By+C=0$ .

So, A = 12, B = 3 and C = -2

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3 years ago

What is the determinant of A = [ -2 2 -5 4 -1 -2 1 3 -5]

stepan [7]

Answer:

-51

Step-by-step explanation:

$\begin{vmatrix}-2&2&-5\\4&-1&-2\\1&3&-5\end{vmatrix}=\\=\mathsf{-10-4-60-5+40-12}=\\=\mathsf{-91+40}=\\=\mathsf{-51}$

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3 years ago

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