Answer:
All the options are correct
Answer:
<h3>(A)</h3>
The answers will have the same value, beacuse both scientific notations have the same coefficient, 4.2 and 1.4. Also, if you mentally subtract the exponents of those powers, you would have the same exponent. So, equal coefficient and equal exponent will give the same result.
<h3>(B)</h3>
The value of each expression can be found by dividing coefficients and powers.

<h3>(C)</h3>
The value of each expression in standard form is

Remember that standard form refers to the number without the ten-power.
Area of a triangle= 1/2bh
14x5.5=77
77/2=38.5cm^2
Well you would do 1/2bh, 11 x 3 is 33 so half of that is 16.5
Answer:
answer should be 245 i am really sorry if it is wrong
Step-by-step explanation: