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Lostsunrise [7]

3 years ago

9

What is the value of 30-2(7+2)-1? 11 14 17 19

2 answers:

Anon25 [30]3 years ago

4 0

Answer:

The answer is 11

Step-by-step explanation:

To solve the expression we must use order of operations following the memotecnic rule PEDMAS that states the order of operations. First solve parenthesis, then exponents, then divisions and multiplications from left to right and finally additions and subtractions from left to right . Following this rule we have:

30-2(7+2)-1

First parenthesis

30-2*(9)-1

There are no exponents. There are no divisions so we do multiplications first

30 -18 -1

There are no additions we only do the remaining subtractiosn form left to right

30-18-1= 12-1= 11

valkas [14]3 years ago

4 0

Answer: A) 11 is the answer

Step-by-step explanation:

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5(3x+2)-2(4x-1)<br> Can someone help me by showing step by step on what to do please?

Eduardwww [97]

To solve this we need to use this formula:

$a(b + c) = ab + ac$

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An archaeologist earns $9147 monthly. Determine the amount he is paid annually.

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3 years ago

Find the range of the data. <br><br> 98, 21, 52, 39, 45 76

Alenkinab [10]

Answer:

77

Step-by-step explanation:

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3 years ago

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nignag [31]

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5 0

3 years ago

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The graph of a line passes through the points (0, -2) and (6.0). What is

9966 [12]

Answer:

$y=\frac{1}{3}x-2$

Step-by-step explanation:

The equation of a line is given in the form $y=mx+b$

Where

m is the slope with formula $m=\frac{y_2-y_1}{x_2-x_1}$

and

b is the y-intercept [y axis cutting point of line]

Given the two points (0, -2) and (6,0),

x_1 = 0

y_1 = -2

x_2 = 6

y_2 = 0

Now, we find m using formula:

$m=\frac{0+2}{6-0}=\frac{1}{3}$

Now we have

$y=\frac{1}{3}x+b$

Finding b, we plug in any (x,y) point. Lets put (6,0) and find b:

$y=\frac{1}{3}x+b\\0=\frac{1}{3}(6)+b\\0=2+b\\b=-2$

Thus,

equation of line = $y=\frac{1}{3}x-2$

5 0

3 years ago