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3 years ago

PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLEASE!!

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

7 0

Answer:

1) C

2) B

3) A,B, and C

4) C

5) B

6) C

Step-by-step explanation:

OLEGan [10]3 years ago

4 0

Answer:

1. C

2. B

3. A, B, C

4. C

5. B

6. C

Step-by-step explanation:

1. You can remember the name by just looking at their positions- they alternate and they're on the exterior

2. They are supplementary meaning they add to 180°, set the angle measures up to 180 and solve for x!

76 + 2x = 180

2x = 104

x = 52

3. Equilateral trinagles have these qualities

4. Those hashes on the sides of the triangles signify those sides are the same length- that means the angles opposite of those sides share the same angle measure. If you know two angles are 35, and the last angle is 2x, you can set up an equation:

35 + 35+ 2x = 180

70 + 2x = 180

2x = 110

x = 55

5. That square means a right angle which equals 90°, like question 4, you set up an equation!

90 + 5x + 5x = 180

90 + 10x = 180

10x = 90

x = 9

6. Set up a proportion.

12 : 30 // 12(x) = 30, x = 2.5

8 : y // 8(2.5) = y, y = 20

You might be interested in

Sin(20)=x/670 ????????

mash [69]

Answer:

229.2

Step-by-step explanation:

Remark

There's a lot in this question. The x is not just any x. It is defined and limited by its relationship with the sine function.

The Sin is defined as Opposite over Hypotenuse in a right triangle. The 670 is the Hypotenuse. You know that by the definition of Sine.

So one thing you should always keep in mind: the x because of where it is in the definition, will always be smaller than the Hypotenuse. So you should get a value less than 670.

Formula

Just as you have it

Sin(20) = x / 670

Solution

Multiply both sides by 570

670 * sin(20) = x

sin(20) = 0.3420

x = 670 * 0.3420

x = 229.2

6 0

3 years ago

Jeremiah lives in New York City and takes a taxi almost everywhere he goes. In order to calculate the price of his taxi ride,

ohaa [14]

Answer: 2.50 is the fee he must pay before the taxi takes him anywhere

Step-by-step explanation: since it is an add on, and it is not multiplied by the variable, we know this is a one time expense, meaning it is the base charge.

The answer is A

4 0

3 years ago

A pencil holder contains only six blue pencils and three red pencils. If two pencils are drawn at random, what is the probabilit

erastova [34]

6 blue pencils and 3 red pencils means 9 total pencils. So the probability of pulling out ONE blue pencil would be 6/9 or about 67 percent. TWO blue pencils would be HALF of that. So 6/9 * 1/2 which is 6/18 or 1/3 or about 33 percent.

6 0

3 years ago

Despite booming new car sales with their cha-ching

Elena-2011 [213]

Answer to the 1st question: 8 years

Answer to the 2nd question: The year 2022

=======================================================

Further explanation:

x = number of years after 2008

y = average price of a new car

The prices are going up by $1250 per year on average. This is the slope because the slope is the rate of change. So m = 1250.

The y intercept is b = 30100 as this is the price in 2008.

This leads us to go from y = mx+b to y = 1250x+30100

Plug in x = 0 and you should get y = 30100.

Also, plugging x = 6 into the equation leads to y = 37600 to help confirm things.

-----------------

Next, we plug in y = 47600 and solve for x.

y = 1250x+30100

47600 = 1250x+30100

47600-30100 = 1250x

17500 = 1250x

1250x = 17500

x = 17500/1250

x = 14

This means 14 years after the year 2008 is when the average new car price will be $47,600.

2008+14 = 2022

2022-2014 = 8

Therefore, <u>8 years</u> after 2014 (aka the <u>the year 2022</u>) is when the new car average price will be $47,600.

6 0

2 years ago

If A=Jame’s present age , write an expression for his age seven years from now

yan [13]

the answer for your question is, A+7

3 0

3 years ago

Read 2 more answers