3 years ago

Is each line parallel, perpendicular, or neither parallel nor perpendicular to the line −3x+5y=−15 ?

2 answers:

8 0

Perpendicular means that it has a slope that is the reciprocal of the original, and parallel means that the slopes are the same.

m_a_m_a [10]3 years ago

8 0

Tip:

With these kinds of equations focus on the x and y values

Same exact values = parallel

x and y values are swapped = perpendicular

anything else = neither

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wariber [46]

Answer:

Step-by-step explanation:

5 0

2 years ago

If a+b=9 and ab=18,find the value of a and b.

Blizzard [7]

Answer:

Given:

a + b = 9

=> a = 9 - b

Given:

a x b = 18

=> (9 - b) x b = 18

=> 9b - b^2 = 18

=> b^2 - 9b + 18 = 0

=> (b - 3)(b - 6) = 0

=> b = 3 => a = 6

=> b = 6 => a = 3

Hope this helps

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3 years ago

Teesha is in French club. There are 26 students in the club.The French teacher will pick 3 students at random to guide vistiting

Triss [41]

23/26 which equals about 88%
There is an 88% chance she will not get picked.

7 0

3 years ago

Due to ever-changing technology, a new XYZ Smartphone decreases in value 20% each year. (a) How much will this $1000 phone be wo

neonofarm [45]

Answer:

1.) $640 2.) 7 years.

Step-by-step explanation:

1000 x .2 = 200 1 yr

1000 - 200 = 800

800 x .2 = 160 2 yrs

800 - 160 = 640

640 x .2 = 128 3 yrs

640 - 128 = 512

ANYWAYS THIS WOULD TAKE TO LONG! SO HERE IS THE ANSWER TO B.

5 0

3 years ago

What is the mean of the data set rounded to the nearest tenth 0.7 1.1 0.8 1.6 1.6 2.2 1.1

Rina8888 [55]

The mean (average) can be found by adding up all ur numbers, then dividing by how many numbers there are.

(0.7+1.1+0.8+1.6+1.6+2.2+1.1) / 7 = 9.1 / 7 = 1.3 <==

6 0

3 years ago

Read 2 more answers