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2 years ago

What can you infer about elements that are in the same group?

Mathematics

2 answers:

Molodets [167]2 years ago

4 0

B.

Elements of the same group in the Periodic Table will have similar chemical and physical properties.

weeeeeb [17]2 years ago

4 0

Answer:

b.They will display similar chemical and physical properties.

Step-by-step explanation:

We have to find about the elements that are in the same group.

In modern periodic table

Elements are arranged in group according to similar properties.

The elements which have same properties are placed in the same group and mass of different elements are different in the group.

The outer electronic configuration of every element in the same group are same.

Therefore, the physical and chemical properties of the elements are same in the group.

Hence, option B is true.

Answer:b.They will display similar chemical and physical properties.

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Mark said he can decompose five six into three fractions with three different numerators and the same denominator is this possib

Kazeer [188]

Answer:

1/6 ; 2/6 ; 2/6

Step-by-step explanation:

To split 5/6 into. 3 different fractions with the same denominator and different numerator values;

The integer value of the numerator 5 can be divided into 3 different whole Number values ;

It could be :

5 = 3 + 1 + 1

5 = 2 + 2 + 1

Hence, we could have ;

3/6 +. 1/6 + 1/6

2/6 + 2/6 + 1/3

8 0

2 years ago

16. A negative number x a negative number is always positive. *<br> true<br> false<br> nositi

xenn [34]

Answer:

True.

Step-by-step explanation:

I don't know the explanation behind any of it, but a negative number, when multiples by another negative number, is always positive.

3 0

2 years ago

Convert,the complex number into polar form: 4+4i

kow [346]

Z = a + bi
z = 4 + 4i

r² = a² + b²
r² = (4)² + (4)²
r² = 16 + 16
r² = 32
r = 4√(2)
r = 4(1.414)
r = 5.656

$cos\theta = \frac{a}{r}$
$cos\theta = \frac{4}{4\sqrt{2}}$
$cos\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$cos\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$cos\theta = \frac{4\sqrt{2}}{4(2)}$
$cos\theta = \frac{4\sqrt{2}}{8}$
$cos\theta = \frac{\sqrt{2}}{2}$
$2(cos\theta) = 2(\frac{\sqrt{2}}{2})$
$2cos\theta = \sqrt{2}$
$2cos\theta = 1.414$

$sin\theta = \frac{b}{r}$
$sin\theta = \frac{4}{4\sqrt{2}}$
$sin\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$sin\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$sin\theta = \frac{4\sqrt{2}}{4(2)}$
$sin\theta = \frac{4\sqrt{2}}{8}$
$sin\theta = \frac{\sqrt{2}}{2}$
$2(sin\theta) = 2(\frac{\sqrt{2}}{2})$
$2sin\theta = \sqrt{2}$
$2sin\theta = 1.414$

z = a + bi
z = rcosθ + (rsinθ)i
z = r(cosθ + i sinθ)

z = 4 + 4i
z = 5.656cosθ + (5.656sinθ)i
z = 5.656(cosθ + i sinθ)
z = 5.656(cos45 + i sin45)

$\theta = tan^{-1}\frac{b}{a}$
$\theta = tan^{-1}\frac{4}{4}$
$\theta = tan^{-1}(1)$
$\theta = 45$

The polar form of 4 + 4i is approximately equal to 5.656(cos45 + i sin45).

5 0

2 years ago

3. Which of the following represent an exponential DECAY function? Select all that apply. Please hurry thank you

Ilya [14]

Option 2 - it is decreasing

5 0

2 years ago

If AB= X and x=4, then the transitive property states

nata0808 [166]

Answer:

AB=4

Step-by-step explanation:

The transitive property states if A=B and B+C than A+C Next substitute

AB=x and x=4 so AB=4

Hope this helps, if it did, please give me brainliest, it helps me a lot. :)

Have a good day!

6 0

2 years ago