Lines a and bare perpendicular. If the slope of line a is - 2/3 is the slope of line b?

Mathematics

1 answer:

Elena-2011 [213]2 years ago

5 0

Answer:

B. 3/2

Step-by-step explanation:

The slopes of perpendicular lines are negative reciprocals

The negative reciprocals of -2/3

is 3/2

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PLEASE HELP ASAP PLLSSS!!!!

IgorC [24]

Answer:

7 months

Step-by-step explanation:

A(x) = 275 + 125x

C(x) = 1850 - 100x

275 + 125x = 1850 - 100x
125x + 100x = 1850 - 275
225x = 1575
x = 1575 / 225
x = 7

The answer is 7 months

4 0

2 years ago

The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C

DedPeter [7]

Answer: 68

Explanation:

Let x be the age of Mr Jasmi
y be the age of Miss Haslinda
a + b + c be the age of the 3 children

We can write:
(x + y + a + b + c)/5 = 38

But:
(a + b + c)/3 = 18
a + b + c = 18(3)
a + b + c = 54

Substitute this value to our first equation

(x + y + 54)/5 = 38
x + y + 54 = 38(5)
x + y + 54 = 190
x + y = 190 - 54
x + y = 136

Thus:
Mean age of (mr jasmi and miss Linda) = (x+y)/2

But x + y = 136

=> mean age = 136/2 = 68

4 0

2 years ago

Form a perfect-square trinomial. y = x2 + 2x + − 1−

Flauer [41]

Answer:

y = x^2+2x+1

Step-by-step explanation:

x^2+2x+1

= (x+1)^2

5 0

1 year ago

Read 2 more answers