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algol13
3 years ago
9

The table shows the predicted growth of particular bacterium after various numbers of hours. Write an explicit formula for the s

equence of the number of bacterium.
What is the 12th term of the sequence 15, 11, 7, …?

Mathematics
1 answer:
Oksana_A [137]3 years ago
6 0

Answer:

D

-29

Step-by-step explanation:

Problem 1

In the first hour, the number of bacteria is 22

In the second hour,the number of bacteria is 44

It looks like the formula is some multiple of 22

That means you should pick D

Problem 2

n = 12

a = 15

d = - 4

an= 15 + (n - 1)*d

a12 = 15 + 11*(-4)

a12 = 15 - 44

a12 = - 29

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sleet_krkn [62]

Answer:

7.47

Step-by-step explanation: 7.71-0.24=7.47 which is how you find how much more the baby weighed than the kitten

3 0
3 years ago
If y varies directly as x, and y =15 as x= -3, find y for the x-value of 6.
VMariaS [17]

Answer:

the answer is -30.

Step-by-step explanation:

for each x-value, you will multiply it by -5 to get your y-value. i say this because if y-15 when x=-3, if you divide the x from y (so 15/-3) you get -5 which is the number in which y varies by. so you will take 6 and multiply it by -5 which gives you -30.

8 0
3 years ago
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 54° A) 126 B) 72 C) 63 D) 10
Amiraneli [1.4K]
An isosceles triangle has congruent base angles, so if one of the base angles measure 54 degrees, then the other base angle does, too.
And a triangle measures up to 180 degrees.
180 = x + 2(54)
180 = x + 108
x = 72
So the answer is B) 72
5 0
3 years ago
Read 2 more answers
You need to figure out how much money you make each week at the sales job. Assume you work a
Over [174]

Answer:

This true because why ?

Step-by-step explanation:

3 0
3 years ago
1, -c/2 &lt; -1.5<br> 2. -y/2 &lt; 6<br> 3. -d/3 &gt; -9
irina1246 [14]

Answer:

um ight if your asking me if there are right i guess they are...

3 0
3 years ago
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