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dezoksy [38]
3 years ago
9

Help I don’t know these

Mathematics
2 answers:
frutty [35]3 years ago
7 0
They are all proportional except for the last one
hjlf3 years ago
6 0
Number 1 is but I don’t know the other’s sorry
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The skeleton of acetonitrile is shown here. complete the structure
Virty [35]
                   N
                   |||
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         H----- C -----H
                   |
                   H


This is how the <span>skeleton of acetonitrile looks like with its bonds and nonbonding electrons. 
</span>
Acetonitrile is a chemical compound that is a byproduct of acrylonitrile manufacture. Its molecular formula is CH₃CN or C₂H₃N. It is said to be the simplest organic nitrile and it is a colorless liquid.
3 0
4 years ago
What is the value of x? 8 82 98 172
Dvinal [7]

Answer: 98

Step-by-step explanation:

3 0
3 years ago
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A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million u
EleoNora [17]

Answer:

when the survey was initially conducted the average sales of smartphones was 1.7 million units

Step-by-step explanation:

The average annual sales of smartphones is given by function

P(n)= 1.7 (b)^n

Exponential growth function is given by

f(x)= ab^x

Where a= initial value

b = growth factor , b= 1+r where 'r' is the growth rate

x is the time period

Now we compare f(x) with P(n)

the value of a= 1.7 that is the initial value.

So we can say, when the survey was initially conducted the average sales of smartphones was 1.7 million units

8 0
3 years ago
Please help me. This is the 30°-60°-90° Triangle Theorem.
ziro4ka [17]

Answer:

Tan30° = 4/y

Tan30° = 1/root3

Therefore 4/y = 1/root3

Which gives the value of y 4root3

Which is 6.92 (approx)

As for x

Sin30 =4/x

1/2=4/x

X=8

3 0
2 years ago
HELP PLS ASAP 50 POINTS YOU CAN SAVE MY GRADE PLS
ch4aika [34]

Answer:

45

Step-by-step explanation:

3(5)(2 \times 5 - 7)  \\ 15(10 - 7) \\15 \times 3 = 45

8 0
3 years ago
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