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const2013 [10]
3 years ago
11

Mendeleev was the first to organise elements based on their similarities * True False

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0

Answer: True

Step-by-step explanation:

You might be interested in
How to work out 0.4x+2.9=1.5 plz show work
Nataly [62]

Answer:

x = -3.5

Step-by-step explanation:

Simplifying

0.4x + 2.9 = 1.5

Reorder the terms:

2.9 + 0.4x = 1.5

Solving

2.9 + 0.4x = 1.5

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.9' to each side of the equation.

2.9 + -2.9 + 0.4x = 1.5 + -2.9

Combine like terms: 2.9 + -2.9 = 0.0

0.0 + 0.4x = 1.5 + -2.9

0.4x = 1.5 + -2.9

Combine like terms: 1.5 + -2.9 = -1.4

0.4x = -1.4

Divide each side by '0.4'.

x = -3.5

Simplifying

x = -3.5

5 0
3 years ago
Read 2 more answers
Solve for x (7/2x)+(6/4X)=(5X/4)
Bess [88]

Answer:

x=0

Step-by-step explanation:

7/2x+6/4x=5/4x

7/2x=5/4x-6/4x

7/2x=-1/4x

7/2x-(-1/4x)=0

7/2x+1/4x=0

14/4x+1/4x=0

15/4x=0

x=0/(15/4)

x=0

6 0
3 years ago
0.00045−2.5⋅10 −5 = what is the answer i been up all day
Mama L [17]
If I’m getting this right the equation is: 0.00045 - 2.5 x 10 - 5? The dot in between 2.5 and 10 indicates a multiplication sign

So...

0.00045 - (2.5 x 10) - 5
0.00045 - 25 - 5
= -29.9999 -> -30
8 0
3 years ago
26. Which of the following DO NOT illustrates independent events?
AlexFokin [52]

Answer:

  C. obtaining an even number when rolling a die

Step-by-step explanation:

Two events are independent when neither depends on the other. That is, the probability that one occurs is not affected by the occurrence, or lack of occurrence, of the other event. Their joint probability is the product of their individual probabilities.

__

Among the answer choices, all describe two independent events except C. Choice C describes one (1) event, so does NOT illustrate independent events.

4 0
2 years ago
PLEASE HELP<br>HELPP!!!!<br>​
Blababa [14]

Answer:

Equilateral, Isosceles, Scalene, Scalene, 1,620°, 102°

Step-by-step explanation:

5 0
3 years ago
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