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Serjik [45]
3 years ago
12

Need done and Hurry

Mathematics
2 answers:
dimaraw [331]3 years ago
4 0

Answer:  (C) y + 2 = -4(x - 5)

<u>Step-by-step explanation:</u>

First, find the slope between the two points (5, -2) and (3, 6) using the slope formula: m=\dfrac{y_2-y_1}{x_2-x_1}

m=\dfrac{-2-6}{5-3} = \dfrac{-8}{2}=-4


Next, input ONE of the points (x₁, y₁) and the slope (m) into the Point-Slope equation:

y - y₁ = m(x - x₁)

y - (-2) = -4(x - (5))

y + 2 = -4(x - 5)

kicyunya [14]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

To calculate m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (5, - 2) and (x₂, y₂ ) = (3, 6)

m = \frac{6+2}{3-5}= \frac{8}{-2} = - 4

Using (a, b) = (5, - 2), then

y + 2 = - 4(x - 5) ← third on list

-----------------------------------------------

Using (a, b) = (3, 6), then

y - 6 = -4(x - 3)


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you can stop right here or you can write it into slope intercept form:
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Alona [7]
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3 years ago
Determine which system below will produce infinitely many solutions. (2 points)
disa [49]
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6 0
3 years ago
There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth grader
guajiro [1.7K]

Answer:

Sixth graders: 14

Seventh graders: 28

Eighth graders: 28

Step-by-step explanation:

To solve this you just have to use a rule of three to solve the percentages, remember that the 100% will be the 70 students, and we solve each case separetly:

70 students= 100%

sixth grades=   40%

Sixth grades= (40*70)/100

Sixth graders= 28

70 students= 100%

seventh grades=   20%

seventh graders=   (20*70)/100

Seventh graders=14

So if we have that the rest of the students are eighth graders, we just add up the sixth and seventh graders and withdraw them from the total:

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7 0
3 years ago
Statements
vazorg [7]

Answer:

See Explanation

Step-by-step explanation:

The question has unclear information.

So, I'll answer from scratch

Given

ABC = Right angled triangle

DB bisects ABC

Required

Prove that CBD = 45

From the question, we have that:

ABC is right angled at B

So, when DB bisects ABC, it means that DB divides ABC into two equal angles.

i.e.

CBD = ABD

and

CBD + ABD = 90

Substitute CBD for ABD in CBD + ABD = 90

CBD + CBD = 90

2CBD = 90

Divide both sides by 2

\frac{2CBD}{2} = \frac{90}{2}

CBD = \frac{90}{2}

CBD = 45

Hence, it is proved that CBD = 45

<em>Follow the above explanation and use it to answer your question properly</em>

6 0
3 years ago
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