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jenyasd209 [6]
3 years ago
10

The following are molecular formulas. Which formula represents an alkene? Decane (C10H22) Butane (C4H10) Ethane (C2H6) Propene (

C3H)​
Mathematics
2 answers:
DedPeter [7]3 years ago
6 0

Answer:

Propene (C3H6)

just took the test

Step-by-step explanation:

Hunter-Best [27]3 years ago
5 0

Answer: Propene (C3H6)

Step-by-step explanation: Using the formula CnH2n to solve for Alkenes, propane is the only molecule that has an alkene, with twice as many hydrogen and carbon Atoms

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I need to know a equivalent fraction for number 7
AlekseyPX
9/10 is equivalent to 90/100 and the answer under mine or above or the other answer should be reported. They got points for a question they did not answer correctly.
7 0
3 years ago
Persons taking a​ 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a
mihalych1998 [28]

Answer:

y = 4.125x + 496.25

Step-by-step explanation:

Set the data up as points. Then deal with the points.

Givens

(30,620)

(70,785)

y2 = 785

y1 = 620

x2 = 70

x1 = 30

Formula

Slope = (y2 - y1) / (x2 - x1)

Solution

Slope = (785 - 620)/(70 - 30)

Slope = 165 / 40

Slope = 4.125

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

Now you need the y intercept. Either one of the two given points will give you that.

y = 620

x = 30

m = 4.125

y = mx + b

620 = 4.125*30 + b

620 = 123.75 + b

620 - 123.75 + b

b = 496.25

5 0
3 years ago
An express train travels 80km/h from Ironton to Wildwood. A local train, traveling at 48km/h, takes 2 hours longer for the same
masha68 [24]

Answer:

They are 240 kilometers apart.

Step-by-step explanation:

This question can be solved using the following relation:

v = \frac{d}{t}

In which v is the velocity, d is the distance and t is the time.

An express train travels 80km/h from Ironton to Wildwood.

Here we have v = 80, t = x. So

v = \frac{d}{t}

80 = \frac{d}{x}

d = 80x

A local train, traveling at 48km/h, takes 2 hours longer for the same trip.

This means that when v = 48, t = x + 2[tex]. So[tex]v = \frac{d}{t}

48 = \frac{d}{x+2}

Since d = 80x

48 = \frac{80x}{x+2}

Applying cross multiplication

80x = 48(x + 2)

80x = 48x + 96

32x = 96

x = \frac{96}{32}

x = 3

So the distance is:

d = 80x = 80*3 = 240

They are 240 kilometers apart.

3 0
3 years ago
My number rounded to the nearest tenth is 6.4. What might my number be? Justify your answer
garik1379 [7]
It would be 10 because 6.4 is greater than 5. Correct me if i’m wrong
4 0
3 years ago
Find the surface area of this shape.
otez555 [7]

Answer:

54 yds²

Step-by-step explanation:

Area of 1 side: 3*3=9

Number of sides: 6

6*9=54

3 0
3 years ago
Read 2 more answers
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