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geniusboy [140]
2 years ago
14

Let f(x)=x²-x-30 what are the zeros of the function?

Mathematics
1 answer:
tigry1 [53]2 years ago
6 0
<span>x²-x-30=0
factor this equation first

(x-6)(x+5) = 0
x - 6 = 0
x + 5 = 0

x = 6 , x = -5
</span>
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The diagram shows the blueprint of a vegetable garden. All dimensions are given in yards.
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Step-by-step explanation:

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2 years ago
Kayla is going to Japan for vacation. She will exchange $300 for Japanese yen. The exchange rate is $1=85.74 yen. How many yen w
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25,722 yen

Step-by-step explanation:

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3 years ago
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The width of a photo is 5 inches less than its length. A border of 2 inches is placed around the photo. The area covered by the
DaniilM [7]

Answer:

Dimensions of photo excluding border:

x = 11 inches

y = 6 inches

Step-by-step explanation:

Let the length be 'x' and width be 'y'.

The width of a photo is 5 inches less than its length, that is:

x-5 = y

let 'X' be length of photo including border and 'Y' be the width of photo including border:

Where X = x+2 and Y = y+2

Now , we have X-5 = Y

and X*Y = 104 square inches

*putting Y = X-5*

X(X-5) = 104

X^2 - 5X - 104 = 0

X^2 - 13X + 8X - 104 =

X(X-13)+8(X-13) = 0\\(X-13)(X+8)

⇒ X-13 = 0          or        X+8 = 0

Hence X = 13       or X = -8

As length can not be negative, X = 13 inches

Y = X-5 = 13-5 = 8 inches

Dimensions of photo excluding border:

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6 0
2 years ago
What is the coordinate of point P that lies along the directed line segment from Q(2, 5) to R(7, 12) and partitions the segment
Wittaler [7]

Answer:

Option (3). (5, 9.2)

Step-by-step explanation:

If Point P divides the line segment QR in the ratio of m : n.

Let the coordinates of the point P are (x, y)

Since coordinates of the point P are given by,

x = \frac{m(x_2)+n(x_1)}{m+n}

y = \frac{m(y_2)+n(y_1)}{m+n}

Where (x_1, y_1) and (x_2,y_2) are the ordered pairs representing points Q and R.

If (x_1,y_1) represents (2, 5) and (x_2,y_2) represents (7, 12),

Coordinates of point P(x, y) which divides the segment in the ratio of 3:2.

x = \frac{3(7)+2(2)}{3+2}

x = \frac{25}{5}=5

y = \frac{3(12)+2(5)}{3+2}

y = \frac{46}{5}=9.2

Therefore, Point P will be represented by (5, 9.2)

Option (3) will be the answer.

3 0
3 years ago
D is none of the above , and yes
Pani-rosa [81]

Answer:

= 2 {}^{2}  - 3(2) =  - 2 \\ 3 {}^{2}  - 3(3) = 0 \\ 4 {}^{2}  - 3(4) = 4 \\ 5 {}^{2}  - 3(5) = 10

5 0
3 years ago
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