3 years ago

Are the graphs 8x+3y=6 and 8x-3y=6 perpendicular

1 answer:

4 0

Lines are perpendicular if the slope of one is the negative reciprocal of the other. In this case the slopes are -8/3 and 8/3, so while negative they are not reciprocal. So no, the two lines intersect but are not perpendicular.

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Rewrite the following equation in standard form.<br><br> y= -2/7x + 5/8

nikitadnepr [17]

The equation in standard form would be,
$\frac{2}{7} x + y = \frac{5}{8}$
All you have to do is move -2/7x to the other side.

Hope this helped
:D

8 0

3 years ago

-3x-(3x-1)=-4x-9 what is the answer

Karolina [17]

Answer: x = 5

Step-by-step explanation:

Want me to show this, or did you just want the answer?

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3 years ago

A street vendor earns $20 for each day of work plus $4 for

loris [4]

Answer:

(C)

Step-by-step explanation:

20 for each day=20x

4 for hot dogs sold=4x

20x+4x

(C)

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3 years ago

A man walked steadily from 11.00am to 2.30pm at 5 kilometres per hour. how far did he walk

DerKrebs [107]

Taken time is from 11.00 am to 2.30 pm (14.30) = 14.30 - 11 = 3.30 hours

We know that D = S* T (D - distance, S - speed , T- time)

So, $D= \frac{5km}{h}*3.5h=\boxed {17.5 hours}$

5 0

3 years ago

Read 2 more answers

How do you invert and multiply to divide 2/3÷4

Ira Lisetskai [31]

2/3 ÷ 4

2/3 ÷ 4/1

We invert the 4/1 to 1/4 and multiply out.

2/3 × 1/4

= 1/3 × 1/2 2 into 4 is 2.

= 1/(3 × 2)

= 1/6

Hope this helps.

4 0

3 years ago