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3 years ago

Fractions 2 3/4 + 4 4/5 + 3 8/9 =

Mathematics

2 answers:

zysi [14]3 years ago

7 0

2 3/4 + 4 4/5 + 3 8/9 =

= (2x4+3)/4 + (4x5+4)/5 + (3x9+8)/9

= ⁴⁵⁾11/4 + ³⁶⁾24/5 + ²⁰⁾35/9

= (495 + 864 + 700)/180

= 2059/180

iragen [17]3 years ago

6 0

Answer:

11 79/80

Step-by-step explanation:

2+4+3+ 3/4+4/5+8/9

=9+ 3(5*9) +4(4*9) + 8(5*4)/4*5*9

=9 + 135+ 144+160/180

=9+ 439/180

=9+2 + 79/80

=11 79/80

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meriva

Answer:

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Step-by-step explanation:

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Read 2 more answers

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kobusy [5.1K]

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4 years ago

Find the vertex and axis of symmetry for f(x)=2x^2-1

vfiekz [6]

<h3>Axis of symmetry is 0 and vertex is (0, -1)</h3>

Solution:

Given is:

$f(x) = 2x^2 - 1$

We have to find the vertex and axis of symmetry

The general equation is given as:

$f(x) = ax^2 + bx + c$

Comparing with given equation,

a = 2

b = 0

c = -1

The axis of symmetry is given as:

$x = \frac{-b}{2a}$

$x = \frac{0}{2(2)}\\\\x = 0$

Thus axis of symmetry is 0

The x coordinate of the vertex is the same

x coordinate of the vertex = 0

h = 0

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k = f(h)

k = f(0)

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Thus, y coordinate of the vertex is -1

Therefore, vertex is (0, -1)

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3 years ago

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Sever21 [200]

Answer:

Step-by-step explanation:

area=√3/4×a^2

100√3 = √3×a^2

a^2 = 100

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3 years ago

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Neporo4naja [7]

Answer:

The answer is C

Explanation:

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