The width of a red blood cell is approximately 8 micrometers, which is 8 x 10-6 meter. Give your answers to the questions below

in scientific notation. Be sure to answer both A and B, and explain your answer to B.
A. What would be the width of 7.2 x 105 red blood cells in meters?

B. If a grain of salt is .5mm wide, how many red blood cells could fit across one grain of salt? Explain your answer. (Hint: 1mm = 1 X 10-3 m.)

Mathematics

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Write three numerical expressions that are equivalent to (0.0004) . (0.005)

lawyer [12517]

The three equivalent numerical expressions are:

$(0.0004). (0.005) = (\frac{4}{10000}).(\frac{5}{1000})$

$(0.0004). (0.005)= (\frac{1}{2500}).(\frac{1}{200})$

$(0.0004). (0.005) = (4 \times 10^{-4}).(5 \times 10^{-3})$

Solutions to create three numerical expressions equivalent to (0.0004). (0.005)

8 0

2 months ago

Given that Ray E B bisects ∠CEA, which statements must be true? Select three options. m∠CEA = 90° m∠CEF = m∠CEA + m∠BEF m∠CEB =

tester [12383]

Answer:

Attached is the question in consideration.

$m\angle CEA =90 \ (deg)$

$m\angle BEF=135\ (deg)$

$\angle CEF$ forms a straight line.

$\angle AEF$ depicts a right triangle.

The options $1,4,5,6$ represent the correct answers.

Step-by-step explanation:

⇒ Given that $\ ray\ AE$ is ⊥ $FEC$ it constitutes a right triangle, leading to $m\angle CEA =90\ (deg)$ .

⇒ The measure for $\angle BEF =135\ (deg)$ equals $\angle BEF =\angle AEB +\angle AEF = (45+90)=135\ (deg)$ as $\angle AEB$ bisects $\angle AEC$ , implying that $\angle AEB$ is half of $\angle AEC$ , thus $\angle AEB = 45\ (deg)$ .