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3 years ago

PLEASE HELP! I don't understand this question!

Mathematics

2 answers:

pantera1 [17]3 years ago

8 0

Answer:

Its the first choice: right, scalene.

Step-by-step explanation:

It is a right angled triangle, (indicated by the little square at Q).

The sides have different lengths so it scalene.

MrRissso [65]3 years ago

4 0

Answer:

right scalene

Step-by-step explanation:

Triangle PQS

First by its angles

It has a right angle at Q so it will be known as a right triangle

Then by its sides

3.5 ,4, 5.3

Since none of them are equal, we call that scalene

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ludmilkaskok [199]

Answer:

$1800-$350=$1450

$1450÷$145=10 nights

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2 years ago

Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all

Sveta_85 [38]

Answer:

Step-by-step explanation:

there are a possible 6 combinations for a sum of 7:

1,6

6,1

2,5

5,2

3,4

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so we can create this proportion:

7/36 = n/216

n = # times to roll a sum of 7 out of 216

now cross-multiply:

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2 years ago

Solve the equation.<br> 3x = 2x + 20<br> X =<br> Ty!!

emmainna [20.7K]

Answer:

X=20

Step-by-step explanation:

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2 years ago

Read 2 more answers

The gear is one of the oldest mechanical devices. It has been used since ancient times for its ability to increase or decrease r

eduard

The large gear attached to the pedals connected to the smaller gear

attached to the wheel allows the bicycle to travel further per rotation.

Correct responses:

Part A: Approximately 10.47 inches

Part B: 300°The d

Part C: Approximately 125.66 inches

Part D: The distance traveled increases by approximately 62.83 inches

<h3 /><h3>Methods used to calculate the above values</h3>

Given:

The radius of the large central gear, <em>r</em> = 4 inches

Radius of the small gear = 2 inches

Part A:

The distance travelled by the larger gear when the angle of rotation is 150° is given as follows;

$\displaystyle Distance \ travelled \ by \ larger \ gear = \mathbf{\frac{150^{\circ}}{360^{\circ}} \times 2 \times \pi \times 4 \, inches} = \frac{10}{3} \cdot \pi \ inches$

$\displaystyle Distance \ traveled \ by \ the \ outer \ edge = \frac{10}{3} \cdot \pi \ inches \approx \underline{ 10.47 \ inches}$

Part B:

When the small gear travels the same linear distance as the large gear in part A, we have;

$\displaystyle Degree \ of \ rotation = \frac{\frac{10}{3} \cdot \pi }{2 \times \pi \times 2 } \times 360^{\circ}= 300^{\circ}$

The degree of rotation of the small gear = <u>300°</u>

Part C:

The distance travelled, <em>C</em>, by a single rotation of the large gear is given as follows;

C = 2 × π × 4 inches = 8·π inches

The degree of rotation of the smaller gear following one rotation of the large gear is therefore;

$Degree \ of \ rotation = \displaystyle \frac{8\cdot \pi \ inches}{4 \cdot \pi \ inches } \times 360^{\circ} = \mathbf{ 720^{\circ}}$

720° = 2 × 360°

1 complete rotation is equivalent to 360°.

Therefore'

720° is equivalent to two complete rotation.

Therefore, the smaller gear and the wheel rotates twice for each rotation of the large gear

The distance the bicycle travels = 2 × The circumference of the wheel

Therefore;

Distance traveled by the bicycle = 2 × 2 × π × 10 inches = 40·π inches

Distance traveled by the bicycle = 40·π inches ≈ <u>125.66 inches</u>

Part D:

If the radius of the small gear is 1.5 inches and the radius of the large gear is 4.5 inches, we have;

Number of rotation of the small gear for each rotation of the large gear = 3 rotations

Therefore, number of rotation of the wheel = 3

Distance the bicycle travels = 3 × 2 × π × 10 inches = 60·π inches

The difference in distance traveled = 60·π inches - 40·π inches = 20·π inches

The distance traveled by the bicycle increases by 20·π inches ≈ <u>62.83 inches</u>

Learn more about gear transmission here:

brainly.com/question/14646065

brainly.com/question/3926797

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2 years ago

What is the factored form of the function shown in the graph at right?

qaws [65]

Answer:

klsjdhfehjidrbfherujbfvjhevf

Step-by-step explanation:

lkgnefkjgbnkdfjgbk;dfbg

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2 years ago