3 years ago

NEED HELP WITH THIS QUESTION ASAP

Mathematics

1 answer:

Rus_ich [418]3 years ago

7 0

The answer is 126 degrees

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All vertical and horizontal cross-sections of any one cube are all the same size and shape. What about vertical and horizontal c

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Yes they are all the same size and shape.

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3 years ago

Whats the answer to this?

mars1129 [50]

Answer:

15 degrees

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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

The y coordinate of the vertex is:

k = f(h)

k = f(0)

$f(0) = 2(0) - 1\\\\f(0) = 0 - 1\\\\f(0) = -1$

Thus, y coordinate of the vertex is -1

Therefore, vertex is (0, -1)

3 0

3 years ago

The table below gives the dimensions of a bridge and a scale model of the bridgeFind the scale factor of the model to the real b

vovangra [49]

The model of the bridge and the actual bridge are similar solids. The lengths of corresponding sides of similar figures are in proportion.

5/25 = 6/30 = 8/40 = 1/5

Answer: 1/5

7 0

3 years ago