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2 years ago

14

Graph the given relation or equation and find the domain and range. Then determine whether the relation or equation is a functio

n.
y=2x+5

1 answer:

Phantasy [73]2 years ago

3 0

Answer: i hope this helped

Step-by-step explanation:

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A and b are natural numbers. The diameter of cell a is 2.3 , and the diameter of cell b is 2.3 .

Pani-rosa [81]

After clarification we see the respective diameters are

$A = 2.3 \times 10^{-a}$

$B = 2.3 \times 10^{-b}$

We're asked about the ratio

$A:B = 2.3 \times 10^{-a} : 2.3 \times 10^{-b} = 10^{-a} : 10^{-b} = 10^b : 10^a = 10^{b-a} : 1$

Now we can go through the choices.

A. If a = 4 and b = 6, then cell a is 100 times greater than cell b.

$A:B=10^{6-4}:1 = 100:1$

It would be more proper to say the diameter of cell A is 100 times the diameter of cell B, but yes, this is TRUE.

B. If a = 4 and b = 6, then cell b is 100 times greater than cell a.

FALSE. 10 to the minus 4 is 100 times bigger than 10 to the minus 6, so a is bigger.

C. If a = 4 and b = 6, then cell a is 2 times greater than cell b.

FALSE. We already calculated its 100 times bigger.

D. If a = 4 and b = 6, then cell b is 2 times greater than cell a.

FALSE.

8 0

3 years ago

Read 2 more answers

Erin's family went to Disney world when Erin was 11 yrs old and her sister was 3. This year Erin's age is double if her sister.

atroni [7]

The Disney trip was 5 years ago. Now, Erin is 16 and her sister is 8.

3 0

3 years ago

Brand Y Cola sponsors a survey of 15,559 residents of Texas to determine which brand of cola they prefer. Forty percent say they

Triss [41]

Answer:

6224 Brand X residents and 9335 Brand Y residents

Step-by-step explanation:

Total number of residents in the survey=15559

Residents that prefer Brand X=40%

Residents that prefer Brand Y=60%

<u>Population sample?</u>

Residents that prefer Brand X= 40/100 ×15559 =6223.6⇒6224 residents

Residents that prefer Brand Y= 60/100 × 15559 =9335.4⇒⇒9335 residents

3 0

3 years ago

Read 2 more answers

a stack of sheets of tissue paper is about 2.5 inches high. each sheet is about 0.01 inch thick. how many sheets are in the stac

damaskus [11]

Answer:

Step-by-step explanation:

2.5 / 0.01 = 250 sheets in the stack....just a little division problem....thank god for calculators...lol

4 0

3 years ago

Solve for b, i already solved for A <br> will give brainliest

larisa86 [58]

Answer:

b=23 degrees

Step-by-step explanation:

a was 66 degrees so b=23 degrees 180-90-66=23

6 0

2 years ago