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viktelen [127]
3 years ago
7

I will mark brainliest

Mathematics
1 answer:
Vilka [71]3 years ago
5 0

Answer:

2nd option

Step-by-step explanation:

The zeros are the points on the x- axis where the graph crosses.

Since the graph crosses the x- axis at x = - 1 and x = 5, then

The zeros are x = - 1 and x = 5

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if the sum of the interior angles of a regular polygon is 900 degrees, how many sides does the polygon have?
noname [10]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
</span>
<span>Number of Sides = (Sum of Interior Angles / 180) +2

</span><span>Number of Sides = (900 / 180) +2
</span>
<span><span>Number of Sides =  7</span>
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It's a heptagon


7 0
2 years ago
170,85,0,-85 find explicit formula for the arithmetic sequence
Lunna [17]
An= A1 + d(n-1)
An= 170 + (-85)(n-1)
An=170-85(n-1)
An= 170-85n+85

Answer: An=255-85n
3 0
2 years ago
Write an algebraic rule for the trend line. Report your rule in slope intercept form.
Tju [1.3M]

Answer:

y = 5x + 20

Step-by-step explanation:

Here, we want to find the slope intercept form equation of the trend line

The general form is:

y =

mx + b

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b = 20

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we have the points;

(10,70) and (5,45)

The slope formula is;

m = (y2-y1)/(x2-x1) = (45-70)/(5-10) = -25/-5 = 5

The equation of the line is thus;

y = 5x + 20

4 0
2 years ago
Holly bought a sweater on sale for 20% off the original price. If she saved $40, what was the original price?
spin [16.1K]
40 is 20% of 160, so if she saved 40$ and it was 20% off then the original price was 160$!!!
6 0
2 years ago
Balance the equation
loris [4]

On the right side, there are

• 2•2 = 4 atoms of Nb

• 2•5 = 10 atoms of O

so among the reactants on the left, the reaction is balanced as

4 Nb + 5 O₂   →   2 Nb₂O₅

7 0
2 years ago
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