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madam [21]
2 years ago
8

Pls help I’m failing Is it rational or Irrational show your work

Mathematics
1 answer:
KengaRu [80]2 years ago
8 0

it's rational number because it's in the form of p/q

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-5x^2=-500 what is the answer
omeli [17]

Answer:

x = ± 10

Step-by-step explanation:

- 5x² = - 500 ( divide both sides by - 5 )

x² = 100 ( take square root of both sides )

x = ± \sqrt{100} = ± 10

That is x = - 10 or x = 10

3 0
3 years ago
What is the scale factor?
sasho [114]

Answer:

the scale factor is 2, but x is 11

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
the length of the shadow of a pole on level ground increases by 90m when the angle of elevation of the sun changes from 58 degre
Mama L [17]

Step-by-step explanation:

(A) Let a triangle be formed with height of pole h, length of base b and angle of elevation 58°. (Due to lack of a figure).

Tan 58° = h / b = 1.6

(B) Let another triangle be formed with height of pole h, length of base (b + 90) and angle of elevation 36°. (Due to lack of a figure).

Tan 36° = h / (b + 90) = 0.72

(C) <u>Simplifying the two equations</u> :

1.6b = 0.72b + 64.8

b = 64.8 / 0.88 = 73.6 m

h (height of pole) = 1.6 * 73.6 = 117.76 m

4 0
3 years ago
I FORGOT HOW TO DO THIS I NEED HELP ASAP!!!
Sidana [21]
Slope form: y=mx + b
slope is 2/5, fill into equation
Y = 2/5x + b
Plug in point to find b
1 = 2/5(0) + b
1 = 0 + b, b = 1
The answer is A. Y = 2/5x + 1
8 0
3 years ago
Which equation represents a proportional relastionship that has a constant of proportionality equal to 4/5
enyata [817]

Answer:

y= 4/5x

Step-by-step explanation:

A proportional relationship has an equation of the form y = mx. It passes through the origin.

y= 4/5x is the only equation which is in this form.

6 0
3 years ago
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