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Inessa05 [86]
3 years ago
5

Which sentence demonstrates the multiplicative identity?

Mathematics
2 answers:
nasty-shy [4]3 years ago
6 0

Answer:

The answer is actually A

Step-by-step explanation:

ella [17]3 years ago
3 0
C
Explanation
I took the test.
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The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim
nataly862011 [7]

Answer:

≈ 1833

Step-by-step explanation:

To find ratio of proton mass to electron mass, we have to divide.

The numbers are given in <em>scientific notation</em>.

Let a number be  a*10^b and another be  c*10^d, when we divide, we will follow the rule shown below:

\frac{a*10^b}{c*10^d}=(\frac{a}{c}*10^{b-d})

Now, we use the information given to find the ratio:

\frac{1.67*10^{-24}}{9.11*10^{-28}}\\=(\frac{1.67}{9.11}*10^{-24--28})\\=0.1833*10^4

This means we can find the number by taking 4 decimal places to the right, so that would becomes:

0.1833*10^4=1833

The approximate ratio is 1833 [mass of proton is around 1833 times heavier than mass of electron]

7 0
3 years ago
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How to turn an a equation from standard form into vertex form
alekssr [168]

Is this a real question?

6 0
3 years ago
How did the temperature change if: At first it increased by 25% and then decreased by 40%
Roman55 [17]

Answer:

24.6 % decrease

Step-by-step explanation:

Let x be the original temperature

Increase by 25%

x + .25x

1.25x

Decrease by 40%

The amount decreased is

(1.25x) *.40

.496x

Subtract that from 1.25x

1.25x - .496x

.754x

We need to find the percent decrease

1 - .754 = .246

24.6 % decrease

7 0
3 years ago
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What is the area of a triangle that has a height of 6 feet and a base length of 7 feet? (5 points)
Oksanka [162]
Formula= Base times height divided by 2
               

6 x 7= 42
42/ 2
answer= 21
3 0
3 years ago
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Diego solved an equation by multiplying both sides of the equation by 6. Then he checked that 6 is the correct solution by subst
Maslowich
I believe your answer would be c

8 0
3 years ago
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