What is 4xj-jxjxj+15

Mathematics

1 answer:

Kisachek [45]3 years ago

3 0

Answer:

The answer is j+15.

Step-by-step explanation:

4j-3j+15

=j+15

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3. A-line segment has endpoints A(–2, 3) and B(6, –1):

Alekssandra [29.7K]

The equation of the segments perpendicular bisector is; y = -¹/₂x + 2

<h3>How to find the equation of the perpendicular bisector?</h3>

i) Since it is a perpendicular bisector, hence point M is the midpoint. Thus;

Midpoint (AB) = [(x₁ + x₂)/2], [(y₁ + y₂)/2] = (x_m, y_m)

Slope AB will be;

m₁ = ((x₁ - x₂)/(y₁ - y₂))

Slope of perpendicular bisector is;

m₂ = -1/m₁

Equation of perpendicular bisector is;

(y - y_m) = m₂(x - x_m)

ii) Midpoint (AB) = [(-2 + 6)/2], [(3 - 1)/2] = (2, 1)

Slope AB will be;

m₁ = ((6 + 2)/(-1 - 3)) = -2

m₂ = -1/-2 = 1/2

Equation of perpendicular bisector is;

(y - 1) = -¹/₂(x - 2)

y - 1 = -¹/₂x + 1

y = -¹/₂x + 2

Read more about Perpendicular bisector at; brainly.com/question/11006922

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4 0

2 years ago

In one day a movie store rented out 32 comedies. If the ratio of comedies to action movies rented was 8:7, how many action movie

Shalnov [3]

$\bf \cfrac{comedie}{action}\qquad 8:7\qquad \cfrac{8}{7}\qquad \qquad \cfrac{32}{a}=\cfrac{8}{7}\implies \cfrac{32\cdot 7}{8}=\stackrel{action}{a}$

8 0

3 years ago

Leo spent the same amount of time working on each of 5 different weight machines and then spent Two-thirds of an hour on the tre

Sidana [21]

Answer:

5x + 2/3 = 1 3/4 / Leo spent 13 minutes at each machine.

Step-by-step explanation:

There are 5 weight machines. Leo spent a equal amount of time at each weight machine, but we don't know how much time. (5x) We then learn that he spent 2/3 of his time on the treadmill. (5x + 2/3) Leo spent 1 3/4 hours at the gym. (5x + 2/3 = 1 3/4) Now that we have our equation, all that's left to do is solve for x. Change your fractions into numbers. (5x + 40 = 105) After solving for x, you will determine that Leo spent 13 minutes at each machine.