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3 years ago

Evaluate [3(5 + 6) + 2] ÷ 7

Mathematics

2 answers:

larisa86 [58]3 years ago

6 0

The answer to the problem is 5

ra1l [238]3 years ago

3 0

The answer to the problem is 5

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a shipping box will be filled with two different machine parts. one type of machine part weights 0.15 ponds and the other weight

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$\frac{x}{2} =0.15$ hope so this helps

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3 years ago

A shipping company charges a $6 flat fee for a package, plus a fee based on the weight of the package. The company charges $1.25

Musya8 [376]

Answer: 11.2 pounds is the max weight of the package he can have.

Step-by-step explanation: $20 - $6 is $14. $14 divided by 1.25 is 11.2.

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3 years ago

Graph the equation y=×^2-9

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3 years ago

The opposite of which number is closest to -5

MAXImum [283]

The opposite number closest to negative five is positive 5

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3 years ago

Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Check al

Alla [95]

Let's rewrite each equation in the Slope-Intercept Form of the Equation of a Line. First, let's start with the main equation:

$\bullet \ 5x-2y=-6 \therefore y=\frac{5}{2}x+3$

Then, our options are the following:

$A) \ y = -\frac{2}{5}x-2 \\ \\ B) \ 2x+5y=-10 \therefore y=-\frac{2}{5}x-2 \\ \\ C) \ 2x-5y=-10 \therefore y=\frac{2}{5}x+2 \\ \\ D) \ y+4=-\frac{2}{5}(x-5) \therefore y=-\frac{2}{5}x-2 \\ \\ E) \ y-4=\frac{5}{2}(x + 5) \therefore y=\frac{5}{2}x+\frac{33}{2}$

For two perpendicular lines it is true that the product of its slopes is:

$m_{1}m_{2}=-1$

$m_{1}m_{2}=-1 \\ \\ m_{1} \ is \ the \ slope \ of \ y=\frac{5}{2}x+3, \ that \ is, \ m_{1}=\frac{5}{2} \\ \\ Then, \ the \ slope \ of \ a \ perpendicular \ line \ is: \\ \\ m_{2}=-\frac{2}{5}$

According to this, only A) B) and D) might be the perpendicular lines we are looking for. Notice that these lines are the same. The other condition is that the line must pass through the point (5, -4). By substituting this point in the equation, we have:

$y = -\frac{2}{5}x-2 \\ \\ -4=-\frac{2}{5}(5)-2 \\ \\ -4=-2-2 \\ \\ \boxed{-4=-4} \ True!$

Finally, the right answer are:

$A) \ y = -\frac{2}{5}x-2 \\ \\ B) \ 2x+5y=-10 \\ \\ D) \ y+4=-\frac{2}{5}(x-5)$

8 0

3 years ago

Read 2 more answers