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4 years ago

Place the numbers in orderfrom ledst to gregtest.4.57 .895 | 90.4 45.0

Mathematics

1 answer:

elixir [45]4 years ago

5 0

Answer:

.895 4.57 90. 445.0

Step-by-step explanation:

if the decimal point is in front of the first number it is a very low number if it is behind the last number it is a whole number and it is a bigger number

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What is the answer to this question!? Pls help

Andre45 [30]

Jgjofkgokdfsgoi u tyhinmkj fdjb h

5 0

3 years ago

2. y = -2x² + 8x Axis of Symmetry: Vertex: Domain: Range:

worty [1.4K]

Answer:

Part 1) The axis of symmetry is x=2

Part 2) The vertex is the point (2,8)

Part 3) The domain is all real numbers

Part 4) The range is all real numbers less than or equal to 8

Step-by-step explanation:

we have

$y=-2x^{2}+8x$

This is a vertical parabola open downward (because the leading coefficient is negative)

The vertex represent a maximum

step 1

Find the vertex

Convert the quadratic equation in vertex form

Factor -2 leading coefficient

$y=-2(x^{2}-4x)$

Complete the square

$y=-2(x^{2}-4x+4)+8$

rewrite as perfect squares

$y=-2(x-2)^{2}+8$

The vertex is the point (2,8)

step 2

Find the axis of Symmetry

we know that

In a vertical parabola, the axis of symmetry is equal to the x-coordinate of the vertex

the vertex is the point (2,8)

therefore

The axis of symmetry is x=2

step 3

Find the domain

The domain of the quadratic equation is the interval ------> (-∞,∞)

The domain is all real numbers

step 4

Find the range

The range of the quadratic equation is the interval ------> (-∞,8]

$y\leq 8$

The range is all real numbers less than or equal to 8

5 0

3 years ago

Solve the equation -3(x - 5) = 45

Olegator [25]

Answer:

x= -10

Step-by-step explanation:

Divide both sides by the numeric factor on the left side, then solve.

x = − 10

plz brainliest :'D

7 0

3 years ago

Pls this is due soon helopppp

pav-90 [236]

I believe is 25 minutes and 30 seconds or 25 1/2 minutes

8 0

3 years ago

Read 2 more answers

Explain how the pythagorean theorem is used to derive the equation of a circle

zmey [24]

Its a bit tricky to explain without a diagram bot if we take a point (a, b) on the coordinate plane as the center of the circle and another point (x,y) on the circumference then the distance between (a,b) and (x,y) is the radius of the circle.

Now create a triangle by drawing a line horizontally from (a,b) to the circumference and another line prerpendicular to this line from the point (x,y) to make a right angled triangl.e

Applying the pythagoras theorem to this triangle gives

(x - a)^2 + (y - b)^2 = r^2 which is the standard form of equation of a circle.

4 0

3 years ago

Place the numbers in orderfrom ledst to gregtest.4.57 .895 | 90.4 45.0​

Place the numbers in orderfrom ledst to gregtest.4.57 .895 | 90.4 45.0