1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leokris [45]
2 years ago
11

There ate 180 bacteria in a colony and the number of bacteria grows at a rate of 22% each hour. What is the starting value?

Mathematics
1 answer:
trapecia [35]2 years ago
5 0

Answer:

To answer this, you must know how many hours the bacteria has been growing for.

Step-by-step explanation:

You might be interested in
DC= 10 what is the value of AD
yanalaym [24]

Answer:

where is required question. comment me.

7 0
2 years ago
A researcher claims that the mean cost of raising a child from birth to age 2 by husband­wife families in the U.S. is $13,960. A
irina1246 [14]

Answer:

Yes, there enough evidence to reject the claim.

Step-by-step explanation:

Here we need to perform a test for single mean to determine whether the  mean cost of raising a child from birth to age 2 by husband-wife families in the U.S. is $13,960.

The hypothesis is:

<em>H₀</em>: The  mean cost of raising a child from birth to age 2 by husband-wife families in the U.S. is $13,960, i.e. µ = $13,960.

<em>Hₐ</em>: The  mean cost of raising a child from birth to age 2 by husband-wife families in the U.S. is different from $13,960, i.e. µ ≠ $13,960.

The information provided is:

\ar x=13725\\\sigma=2345\\n=500\\\alpha =0.10

The test statistic is:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}=\frac{13725-13960}{2345/\sqrt{500}}=-2.24

The test statistic value is -2.24.

Compute the <em>p</em>-value for this test statistic value at 10% level of significance as follows:

p-value=2\times P(Z

               =2\times 0.01255\\=0.0251

Use the <em>z</em>-table.

The calculated <em>p</em>-value is, 0.0251 < 0.10, therefore the null hypothesis will be rejected.

<u>Conclusion</u>:

As the null hypothesis is rejected at 10% level of significance it can be concluded that there enough evidence to reject the claim.

The  mean cost of raising a child from birth to age 2 by husband-wife families in the U.S. is different from $13,960.

5 0
3 years ago
I don't understand!<br> Please help me i'm in a hurry!!!
Westkost [7]

Answer:

Could you please retake your picture it is blurry

6 0
2 years ago
Read 2 more answers
PLEASE GELP ME ASAP RHIS IS TIMING ME!!!!!!!!!!!!
GrogVix [38]

Answer: A .10

Step to step equation :

7 0
2 years ago
92.4 is 150% of what number?
Ad libitum [116K]
1. We assume, that the number 92.4 is 100% - because it's the output value of the task. 
<span>2. We assume, that x is the value we are looking for. </span>
<span>3. If 92.4 is 100%, so we can write it down as 92.4=100%. </span>
<span>4. We know, that x is 150% of the output value, so we can write it down as x=150%. </span>
5. Now we have two simple equations:
1) 92.4=100%
2) x=150%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
92.4/x=100%/150%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 150% of 92.4

92.4/x=100/150
<span>(92.4/x)*x=(100/150)*x       - </span>we multiply both sides of the equation by x
<span>92.4=0.666666666667*x       - </span>we divide both sides of the equation by (0.666666666667) to get x
<span>92.4/0.666666666667=x </span>
<span>138.6=x </span>
x=138.6

<span>now we have: </span>
<span>150% of 92.4=138.6</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • How many times does 30 go into 42?
    14·1 answer
  • Hi, anyone know how to grow thick curly hair fast?
    6·1 answer
  • Please answer these... please
    11·1 answer
  • Plot 1 1/5, 1 on graph
    6·1 answer
  • Which expression is equivalent to -2(5x-0.75)
    14·2 answers
  • 36. Write the triangle congruence criterion illustrated<br> by each pair of triangles.
    14·1 answer
  • Which correctly compares the height of the rock during days 3 and 4?
    8·1 answer
  • Helps me with this please
    10·2 answers
  • If 3x – 9y = -5 is a true equation, what would be the value of 4(3x – 9y)?
    11·1 answer
  • Help me on my fractions theres a photo ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!