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strojnjashka [21]
3 years ago
8

Find the rate of change on the graph​

Mathematics
2 answers:
Zanzabum3 years ago
6 0

Answer:

  • 44 4/9

Step-by-step explanation:

Initial value is $400

Value after 9 years is zero

Change in value over 9 years is $400

<u>Rate of change is:</u>

  • 400/9 = 44 4/9
jeka57 [31]3 years ago
3 0

Answer:

Resale value of a refrigerator

The rate of change on the graph :---

(Final amount - initial amount)/(Final year - initial year)

\frac{(0 -400)}{(9 - 0)}  =  \frac{-400}{9} =\boxed{-44.44}✓\\

slope is negative as the amount is decreasing every year

<h3><u>$</u><u>44.44</u><u> </u><u>per</u><u> </u><u>year</u> is the right answer.</h3>
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Find the value of x,y and z. The Diagram is not a scale!
joja [24]

Answer:

x= 76, y = 63  z, 104

Step-by-step explanation:

We can find x since the three angles of a triangle add to 180 degrees

46+58+x = 180

104+x =180

Subtract 104 from each side

x = 180-104

x = 76


x and z form a straight line

x+z =180

76+ z = 180

Subtract 76 from each side

z = 180-76

z = 104


Z, 13 and y make a triangle

z+ 13 +y = 180

104+13+y = 180

117+y=180

Subtract 117 from each side

y = 180-117

y = 63

4 0
3 years ago
Find the point-slope equation for
mars1129 [50]

Answer:

y-24=m(x--4)

Step-by-step explanation:

point slope form:

y-y₁=m(x-x₁)

1) find the slope or "m" first:

slope formula: (y2-y1)/(x2-x1)

(-53-24)/7+4

-77/11=-7

slope=-7

so

y-y₁=-7(x-x₁)

y1=24

x1=-4

y-24=m(x--4)

hope this helps!

8 0
3 years ago
Find the polynomial of least degree in standard form with the given roots:<br> x = 2, 3i
Dmitriy789 [7]

Answer:

x^3 - 2x^2 + 9x - 18.

Step-by-step explanation:

The complex roots occur in conjugate pairs so there are 3 roots 2, 3i and -3i.

So we have:

P(x) = (x - 2)(x - 3i)(x + 3i)

= (x - 2)(x^2 - 9i^2)

= (x - 2)(x^2 - 9*-1)

= (x - 2)(x^2 + 9)

= x^3 + 9x - 2x^2 - 18

= x^3 - 2x^2 + 9x - 18.

4 0
3 years ago
What is the value of the expression, written in standard form?<br>(6.6x10^-2)<br>(33x 10^-4)​
Thepotemich [5.8K]

Answer:

200

Step-by-step explanation:

Steps

6.6 x 10^{-2}/3.3 x 10-4

10^{-2}-4(-4) x 6.6/3.3

10^{-2} x 6.6 = 660/3.3

=200

3 0
3 years ago
If I had 12 eggs for 1.29 how much did each one cost
topjm [15]

Answer:

The total cost of the eggs is $15.48

Step-by-step explanation:

12 x 1.29 = 15.48

6 0
3 years ago
Read 2 more answers
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