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3 years ago

All atoms of an element always have the same number of

Mathematics

2 answers:

UkoKoshka [18]3 years ago

6 0

All atoms of an element always have the same number of protons but can have different numbers of neutrons.

Thepotemich [5.8K]3 years ago

5 0

Protons my dude.............

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Eliminate the parameter

8090 [49]

$y = x -2, x\geq 1$

Step-by-step explanation:

In the question given correct parameter is - 2) $y = x -2, x\geq 1$

Method -

$x= t^2 + 1$ ........................(1)

$y = t^2 - 1$ ..........................(2)

Let's solve the equation 1,

⇒ $x = t^2 +1$

⇒ $t^2 = x - 1$

Put the value of t² in equation 2

$y =t^2 - 1 \\y = x -1 -1\\y = x - 2$

Here we got the y parameter as $y = x -2$

So the option no .2 is the correct option 2) $y = x -2, x\geq 1$

4 0

3 years ago

I need help on my math please

Dovator [93]

In a 2-way frequency table, you take the row entry and divide it by its row total to get a decimal.
For your example:
It starts out like this:
sunny snowy
Male: 17 11
Female: 15 16

Add the rows up.
sunny snowy     total
Male: 17 11 28
Female: 15 16 31

Then divide the number the by the total:
sunny     snowy     total
Male: 17/28 11/28 28
Female: 15/31    16/31 31

Yours says to round to the 1000th place, so it ends up like:
sunny snowy
Male: .607 .393
Female: .484 .515

Hope that helps!!

7 0

3 years ago

Look at the figure shown below:

boyakko [2]

These are the steps, with their explanations and conclusions:

1) Draw two triangles: ΔRSP and ΔQSP.

2) Since PS is perpendicular to the segment RQ, ∠ RSP and ∠ QSP are equal to 90° (congruent).

3) Since S is the midpoint of the segment RQ, the two segments RS and SQ are congruent.

4) The segment SP is common to both ΔRSP and Δ QSP.

5) You have shown that the two triangles have two pair of equal sides and their angles included also equal, which is the postulate SAS: triangles are congruent if any pair of corresponding sides and their included angles are equal in both triangles.

Then, now you conclude that, since the two triangles are congruent, every pair of corresponding sides are congruent, and so the segments RP and PQ are congruent, which means that the distance from P to R is the same distance from P to Q, i.e. P is equidistant from points R and Q

6 0

3 years ago

Read 2 more answers

Please answer today!

Svet_ta [14]

Answer:

#1. A. C. D.

#2. D. F.

3^4 equals 81 and so do answer D. & F.

8 0

2 years ago

Read 2 more answers