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Rom4ik [11]
3 years ago
13

C) Write the equation in factored form. The equation is y= x^2 - 8x - 20 // Need answer ASAP

Mathematics
1 answer:
netineya [11]3 years ago
8 0

The first term will be an x because

x squared breaks down as x times x.

First look for factors of your constant that add to your

coefficient of the middle term in the trinomial.

Also note that the constant is negative and a negative

factors as the product of a positive and a negative.

The factors of -20 that add to -8 are -10 and +2.

So we have y = (x - 10)(x + 2).

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Help I need the answer dont send NO FILE only answer if you know it step by step explanation
PIT_PIT [208]

Answer:

See below.

Step-by-step explanation:

Use the same method as before. Go from each original point in a direction perpendicular to the line of reflection, and then go the same distance to the other side of the line.

6 0
2 years ago
(-1,2),(3,6),(7,18),(11,54) linear or not linear
pentagon [3]

Answer:

           Linear

Dk if your asking for all or not

3 0
2 years ago
If observed frequencies are 5,10,15 and expected frequencies are each equal to 10 then chi square value is
lina2011 [118]

Answer:

5

Step-by-step explanation:

Given :

Observed values = 5, 10, 15

Expected freqencies = 10

χ² = Σ(observed - Expected)² / Expected

χ² = (5-10)²/10 + (10-10)²/10 + (15-10)²/10

χ² = 25/10 + 0/10 + 25/10

χ² = 2.5 + 0 + 2.5

χ² = 5

5 0
3 years ago
Two cars depart an intersection.
patriot [66]

Answer:

The distance between them after 1 hour and 30 minutes will be of 63.64 miles.

Step-by-step explanation:

This question can be solved using the Pythagorean Theorem.

Both cars travel at a constant speed of 30 miles per hour. So, after 1 hour and 30 minutes, which is 1 and a half hour, they will have traveled 30*1.5 = 45 miles.

The distance between them is the hypotenuse of a right triangle, in which the sides are 45. So

d^2 = 45^2 + 45^2

d = \sqrt{45^2 + 45^2}

d = 63.64

The distance between them after 1 hour and 30 minutes will be of 63.64 miles.

4 0
3 years ago
Find the equation of the line perpendicular to y=-2/3x -7 that runs through the points (6,1) in slope intercept form
SVEN [57.7K]

The equation of line is:

y = \frac{3}{2}x-8

Further explanation:

Given equation of line

y=-\frac{2}{3}x-7

Comparing it with the standard form

y = mx + b gives us:

slope = m1 = -2/3

Let m2 be the slope of second line

The product of slopes of two perpendicular lines is -1.

m_1* m_2 = -1\\-\frac{2}{3} *m_2 = -1\\m_2 = -1 * -\frac{3}{2}\\m_2 = \frac{3}{2}\\Putting\ in\ standard\ form\\y = \frac{3}{2}x +b

We have to find the value of b. So, Putting the point(6,1)

1 = \frac{3}{2}(6) +b\\1 = (3 * 3) + b\\1=9+b\\1-9 =b\\b = -8\\The\ final\ equation\ is:\\y= \frac{3}{2}x -8

Keywords: Coordinate geometry, Point-slope form

Learn more about coordinate geometry at:

  • brainly.com/question/2488474
  • brainly.com/question/2601054

#LearnwithBrainly

7 0
3 years ago
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