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3 years ago

Please awnser questions, no links, no I dont know

Mathematics

2 answers:

german3 years ago

5 0

Use a calculator for dimensions that’s what I use just know which one is each side

Mrac [35]3 years ago

3 0

Answer:

330cm

Step-by-step explanation:

The formula to find the surface area of a rectangular prism is 2(lh+hw+lw)

(lh) in this formula is length times height

(hw) is height times width

(lw) is length times width

To find the answer to this problem lets make the height 3/5cm the width 10cm and the length 15cm

so now you would do (15*3/5) which is 9. This solve (lh)

then you would find (3/5*10) which is 6. This solves (hw)

and lastly you would find (15*10) which is 150. This solves (lw)

Now that you now the value of each one of these you replace it in the equation as so: 2(9+6+150)

now you solve the brackets which leaves us with 2(165)

now you multiply 2 with 165

and the answer is 330cm

Surface area = 330cm

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NEED HELP ASAP!! (15 points)

LiRa [457]

Answer:

Step-by-step explanation:

a b c

13 10 z

169 100 z 269 16.4 hope this help's

3 0

3 years ago

I think it’s A but again i’m not sure.

Gnoma [55]

M∠BDC=half the arc it faces=1/2 of 54=27
BD is the diameter, so m∠C=90
m∠DBC=180-90-27=63

6 0

3 years ago

For which shape is 45 degrees the smallest angle of rotational symmetry?

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

You want the external angle to be 45°.

If n = number of sides, the external angles are each 360°/n = 45°

n = 360/45 = 8

The shape is a regular octagon.

4 0

3 years ago

Check attachment for question

Anestetic [448]

Answer:

I belive it is 3x^2 + x. Sometimes I'm braindead so it may be wrong.

4 0

2 years ago

!!! PLEASE HELP FAST !! please help me with one a two :)

yan [13]

Answer:

<h3>Question 1</h3>

Function given:

y = x² + 4x - 4

In the vertex form:

y = x² + 4x + 4 - 8 = (x + 2)² - 8

Axis of symmetry is the vertical line passing through the vertex.

The vertex is

(-2,-8)

Axis of symmetry is

x = -2

y- intercept is

x = 0 ⇒ y = -4, so the point (0, -4)

Two other points are

x = 1 ⇒ y = (1 + 2)² - 8 = 9 - 8 = 1, the point is (1, 1)
x = -1 ⇒ y = (-1 + 2)² - 8 = 1 - 8 = -7, the point is (-1, -7)

See the graph with all the points plotted

<h3>Question 2</h3>

Function given:

y + 2x² - 4x - 6 = 0

In standard form:

y = -2x² + 4x + 6

In vertex form:

y = - 2x² + 4x - 2 + 8 = -2(x - 1)² + 8

The vertex:

(1, 8)

Axis of symmetry is

x = 1

y - intercept

x = 0 ⇒ y = -2(-1)² + 8 = -2 + 8 = 6, the point is (0, 6)

Two other pints:

x = -1 ⇒ y = -2(-1 - 1)² + 8 = -8 + 8 = 0, the point is (-1, 0)
x = 2 ⇒ y = -2(2 - 1)² + 8 = -2 + 8 = 6, the point is (2, 6)

The graph is attached with the points plotted.

3 0

3 years ago