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4 years ago

Y = -2/3x + 2y = 3/2x + 9These lines are...

2 answers:

Klio2033 [76]4 years ago

6 0

These lines are perpendicular
This is because the gradients of perpendicular lines must multiply together to make -1
So, when you multiply 3/2 and -2/3 your answer is negative one
So these lines are perpendicular

stellarik [79]4 years ago

4 0

Answer:

Perpendicular

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes

-2/3 negated is

2/3

The reciprocal (flip the numerator and denominator) of 2/3 is

3/2

So, the lines are perpendicular

Hope this helps! :)

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Lelechka [254]

Answer:

2 2/5

Step-by-step explanation:

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3 years ago

A lawn care company charges a $10 trip fee plus $0.15 per square foot of x square feet of lawn for fertilization. Which equation

aalyn [17]

That would be : y = 0.15x + 10

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3 years ago

Read 2 more answers

Find the equation of the line that passes throughP(6,0) andQ(1,−1).

yarga [219]

Answer:

Step-by-step explanation:

y=mx+b where m is the slope and b is the y intercept

m=(y2-y1)/(x2-x1), we have points (6,0) and (1,-1)

m=(-1-0)/(1-6)=1/5 so we have

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0=6/5+b

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y=x/5-6/5 or more neatly

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5 0

3 years ago

You lose 2 points every time you forget to write your name on a test. You have forgotten to write your name 4 times. What intege

Gelneren [198K]

Answer:

-8

Step-by-step explanation: since it says Times, (for me times is multiplication) you would multiply -2 and 4. negative 2 would be from that person losing 2 points. and 4 since it is your total amount of times you have forgotten to write your name. so, -2 x 4 = -8.

how i got -8. both signs from -2 and 4 are different, and when they are different the answer will always be negative.

7 0

3 years ago

If we list all the natural numbers below 20 that are multiples of 7 or 11, we get 7, 11 and 14. The sum of these multiples is 32

velikii [3]

Number of multiples of 7 up to 1337: $\left\lfloor\dfrac{1337}7\right\rfloor=191$
Number of multiples of 11 up to 1337: $\left\lfloor\dfrac{1337}{11}\right\rfloor=121$
Number of multiples of 77 up to 1337: $\left\lfloor\dfrac{1337}{77}\right\rfloor=17$

This means there are $191+121-17=295$ distinct multiples of 7 *or* 11 up to 1337.

The sum of these multiples is

$\displaystyle\sum_{k=1}^{191}7k+\sum_{k=1}^{121}11k-\sum_{k=1}^{17}77k$

which can be computed using the well-known formula,

$\displaystyle\sum_{k=1}^nk=\dfrac{n(n+1)}2$

So you have

$\displaystyle\sum_{k=1}^{191}7k+\sum_{k=1}^{121}11k-\sum_{k=1}^{17}77k=7\dfrac{191\times192}2+11\dfrac{121\times122}2-77\dfrac{17\times18}2=197762$

8 0

3 years ago

Y = -2/3x + 2y = 3/2x + 9These lines are...​

Y = -2/3x + 2y = 3/2x + 9These lines are...