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adelina 88 [10]
3 years ago
9

Explain how to find 3/4 of 20 using a model. Include a drawing

Mathematics
1 answer:
Igoryamba3 years ago
3 0
Ok so it would be 3/4 times 20
And you would get 15
I would draw a circle that adds up to 100
To do this multiply the 20 five times to get 100
Then multiply the 15 by the same number (5) to get 75
Draw a circle and shade in 75% of it and that is your answer
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Belle made a scale drawing of a mural where 2 inches of the drawing represents 3 feet on the actual mural (scale 2 in. = 3 ft.).
ehidna [41]

Answer:

<h3>Very sorry if this is wrong but, I think the answer would be 48 inches. </h3>

Step-by-step explanation:

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4 0
3 years ago
Consider this quadratic equation. 2x2 − 1 = 3x + 4 Which equation correctly applies the quadratic formula?
Mariulka [41]

Answer:

\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)}

Step-by-step explanation:

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2x^2-1=3x+4\\\\2x^2-3x-5=0\\\\\\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)} \\\frac{3+-\sqrt{9+40} }{4}

x = \frac{3+-7}{4}

Hope this helps and God bless!

6 0
3 years ago
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bagirrra123 [75]
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Answer:

steps below

Step-by-step explanation:

f(x) = 4√x - 2x ... x≥0

f'(x) = 2/√x - 2

critical points: x=0, x=1

x=1 y = 4√1 -2x1 = 2

extreme: (<u>1</u>,2)      tangent line parallel to x axis: y = 2 .... <u>x = 1</u>

x = 0 (x≥0): (0,0)  tangent line parallel to y axis: <u>x = 0</u>

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3241004551 [841]

Answer:

13

Step-by-step explanation:

y=5+2(4)

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