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3 years ago

PLEASE ANSWER SOON Has a picture of question

Mathematics

1 answer:

earnstyle [38]3 years ago

8 0

The answer is 21 which comes from 7 * 3.

Draw the four points in a complex plane. From the drawing you can see that the lenght is 4i - (-3i) = 4i + 3i = 7i, and the width is 1 - (-2) = 1 + 2 = 3.

So, the area is 7 * 3 = 21.

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D) The perimeter of room is 28 m. and the height is 3.5 m. Find the area of 4 walls.

mote1985 [20]

Answer: 98

Step-by-step explanation:

Area of four walls = Curved surface area

= perimeter × height

= 28 × 3.5

= 98 m square

7 0

1 year ago

What is the volume of the pyramid in the diagram?

Jlenok [28]

The volume of a pyramid is lwh/3

4 0

3 years ago

Please me in math<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%20%2B%201%7D%7Ba%20-%201%7D%20%20%2B%20%20%5Cfrac%7B%20%7B

PIT_PIT [208]

Step-by-step explanation:

hope this helps you thank you

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to 4p^-4 10q -3? Assume

lozanna [386]

Step-by-step explanation:

Derive an expression for the equivalent width in a saturated line. Assume a Voigt profile, with the difference in optical depth between the center of the line and the wings being ~104. The wings of the line can be ignored. Define a frequency x1 = (v1 − v0)/ΔvD, where the optical depth τv = 1. Inside of x1 the line is fully saturated, and outside x1 the line is optically thin. Show that the equivalent width is

Note that the equivalent width is practically insensitive to the number density of absorbing material.

7 0

3 years ago

Assume that lines that appear to be tangent are tangent. O is the center of the circle. What is the value of x?

Mashcka [7]

9514 1404 393

Answer:

x = 20, or 125

Step-by-step explanation:

We cannot tell the angle x is intended to refer to. So, here are two answers. Choose the one you think applies.

The triangle that includes both marked angles is a right triangle. (The tangent meets the circle at right angles to the radius.) So, the angle x° at the external point is the complement of the marked central angle.

x° = 90° -70°

x = 20

If x° is referring to the exterior angle associated with the isosceles triangle within the circle, then its measure is the supplement of the interior base angle of that triangle. It is ...

x° = 180° -(180° -70°)/2 = 90° +70°/2

x = 125

5 0

3 years ago