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3 years ago

What is equivalent to 7w +7w

Mathematics

1 answer:

Pani-rosa [81]3 years ago

3 0

Answer:

14w

Step-by-step explanation:

I don't know how to explain it any simpler than just to give you the answer which is 14w.

There is a more mathematical way of getting the 14w, but I'm guessing you won't like it. Use the distributive property. Put brackets around the given expression

7w + 7w = (7w + 7w)

On each side of the plus sign there is a common factor and that common factor is w

w(7 + 7) Now add the two 7s together.

14w

You could say to me, why didn't you take out the 7 to start with. You could

7 ( w + w) but w and w add up to 2w

7*2w

14 w

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Write the equation of the line that is perpendicular to y=2x-7 and passes through the point (6, 5)

Pani-rosa [81]

Answer:

Step-by-step explanation:

we are given a equation of a line

we want to figure out the equation of the perpendicular line passes through the (6,5) points

in order to do so

recall that,

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{m}$

we got from our given equation that m=2

because equation of a line is y=mx+b

thus

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{2}$

remember that, when we want to figure out perpendicular line or parallel line we should the formula given by

$\displaystyle y - y_{1} = m(x - x_{1})$

since we got our perpendicular m is -½, $x_1=6$ and $y_1=5$ , substitute

$\displaystyle y - 5 = - \frac{1}{2} (x - 6)$

to get the perpendicular equation you should simplify the above equation to y=mx+b form

distribute -½:

$\displaystyle y - 5 = - \frac{1}{2} x + 3$

add 5 to both sides:

$\displaystyle y = - \frac{1}{2} x + 8$

hence,

our answer choice is B

3 0

3 years ago

Read 2 more answers

What is the answer when u covert the fraction 9/20 to decimal

ozzi

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3 years ago

What is the equation of this function after it is reflected over the x-axis?

erma4kov [3.2K]

Answer: F(x)=-(x+4)^3

That's it

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3 years ago

Determine whether each table represents a linear or nonlinear

Nesterboy [21]

Answer: Yes, No

Step-by-step explanation:

1st table is linear because the slope is always constant.

Second is not linear, but rather exponential.

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2 years ago

Andy has $310 in his account. Each week, w, he withdraws $30 for his expenses. Which expression could be used if he wanted to fi

Furkat [3]

Answer:

310 - 3w

310 - 3(80) = $70

Step-by-step explanation:

310 - 30w

w = 8

310 - 30(8)

310 - 240

= 70

6 0

3 years ago

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