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3 years ago

Is someone can help my and explain how to do this stuff or make a call and do this with me )?

Mathematics

1 answer:

melomori [17]3 years ago

6 0

Answer:

1.) 90 degrees. The line a is parallel to line c which is perpendicular to the other line, b

Step-by-step explanation:

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SOMEONE HELP ME ON THESE TWO QUESTIONS PLEASE

Anika [276]

1st Answer:

$25

Step-by-step explanation:

You have to subtract the installation fee from the total fee.

685-85=600

If it is for 2 years, that is 24 months, so divide

600/24=$25

2nd Answer:

36 and 37

Step-by-step explanation:

Consecutive means they fall directly next to each other EX: 1, 2, 3, 4.... are consecutive numbers

36 and 37 are consecutive

36+37=73

8 0

4 years ago

What is the approximate value of b, rounded to the nearest tenth? Use the law of sines to find the answer. Law of sines: answers

Dominik [7]

Answer:

$\boxed{\text{2. 4.7 units}}$

Step-by-step explanation:

Assume your triangle has the dimensions shown below.

Before we can use the Law of Sines, we must find ∠C.

1. Calculate ∠C

$\begin{array}{rcl}A + B + C & = & 180^{\circ}\\66^{\circ} + 76^{\circ} + C & = & 180^{\circ}\\142^{\circ} + C & = & 180^{\circ}\\C & = & 38\, ^{\circ}\\\end{array}$

2. Calculate b

Use the Law of Sines

$\begin{array}{rcl}\dfrac{b}{\sin B } & = & \dfrac{c}{\sin C}\\\\\dfrac{b}{\sin 76^{\circ}} & = & \dfrac{3}{\sin 38^{\circ}}\\\\\dfrac{b}{0.9703} & = & \dfrac{3}{0.6157}\\\\ & = & 4.873\\b & = & 0.9703\times 4.873\\& = & \boxed{\mathbf{4.7}}\\\end{array}$

7 0

3 years ago

Please help!! Giving brainliest and extra points!! (Click on photo)

MArishka [77]

Answer:

Step-by-step explanation:

5 0

3 years ago

A ceiling fan with 16-in. blades rotates at 45 rpm.

Kobotan [32]

A. We're told the fan completes 45 full revolutions every minute. One full revolution is $2\pi\,\mathrm{rad}$ , so the fan has an angular speed of

$\dfrac{2\pi\,\mathrm{rad}}{1\,\mathrm{rev}}\cdot\dfrac{45\,\mathrm{rev}}{\mathrm{min}}=90\pi\dfrac{\rm{rad}}{\rm{min}}$

B. Throughout one full revolution of the fan, a point at the tip of one of the fan's blades travels the circumference of a circle with radius 16 in. The circumference is then $2\pi(16\,\mathrm{in})=32\pi\,\mathrm{in}$ . This means the linear speed is

$\dfrac{32\pi\,\mathrm{in}}{1\,\mathrm{rev}}\cdot\dfrac{45\,\mathrm{rev}}{\mathrm{min}}=1440\pi\,\dfrac{\rm{in}}{\rm{min}}$

8 0

3 years ago

Use the formula to factor n8 – 9

gulaghasi [49]

Hi!

The correct answer is ( $n^{4}$ +3)( $n^{4}$ -3)

3 0

4 years ago