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
irakobra [83]
2 years ago
12

Samuel pays $59.99 plus $0.25 for each minute over 450 minutes for his cell phone plan. Monica

Mathematics
1 answer:
sweet [91]2 years ago
5 0

Answer:

D

Step-by-step explanation:

Samuel pays 59.99 for the 450 minutes but when he goes over he pays 0.25 for each minute he goes over. The same thing for Monica

You might be interested in
3. Find the mean and the median of this data set: 9,6,5, 3, 28, 6, 4, 7.<br>​
BARSIC [14]

Answer:

Mean= 8.5

Median= 6

Step-by-step explanation:

3,4,5,6,6,7,9,28

Median= Middle (If two middle number, add and divide by 2)

Mean= (3+4+5+6+6+7+9+28) ÷8

7 0
3 years ago
An experiment was conducted to assess the efficacy of spraying oats with malathion tocontrol the cereal leaf beetle.A sample of
lesantik [10]

Answer:

C

Step-by-step explanation:

Solution:-

- An experiment on the efficacy of spraying malathion on oats to control the growth cereal leaf beetle.

- A sample of n = 10 farms was taken at random. Each farm was either subjected to control group ( no spray ) or the treatment group ( spray ).

- Power ( β ) is the probability of rejecting the null hypothesis when, in fact, it is false. I.e the test statistics lie in the rejection region or the benefit of adding malathion is proven in-effective when in fact it is in-effective.

- Power is the probability of avoiding a ( Type II error ). Mathematically expressed as:

                    Type II Error = 1 - β

- Power is the probability of making a correct decision (to reject the null hypothesis) when the null hypothesis is false.

- The probability that a test of significance will pick up on an effect that is present.

Hence,

Answer: It is the ability to detect the effectiveness of malathion when in fact it is effective.

3 0
2 years ago
√-90=ai√b what is the value of a and b?
OlgaM077 [116]

Answer:

what is this topic in math?

3 0
3 years ago
Suppose a room is 5.2 m long by 4.3m wide and 2.9 m high and has an air conditioner that exchanges air at a rate of 1200 L/min.
Readme [11.4K]

Answer:

54 minutes

Step-by-step explanation:

From the question, we are given;

  • A room with dimensions 5.2 m by 4.3 m by 2.9 m
  • The exchange air rate is 1200 L/min

We are required to determine the time taken to exchange the air in the room;

First we are going to determine the volume of the room;

Volume of the room = length × width × height

                                  = 5.2 m × 4.3 m × 2.9 m

                                  = 64.844 m³

Then we should know, that 1 m³ = 1000 L

Therefore, we can convert the volume of the room into L

= 64.844 m³ × 1000 L

= 64,844 L

But, the rate is 1200 L/min

Thus, time = Volume ÷ rate

                  = 64,844 L ÷ 1200 L/min

                   = 54.0367 minutes

                   = 54 minutes

Therefore, it would take approximately 54 minutes

4 0
2 years ago
A cable installer charges $40.00 per hour plus a $60.00 service charge. Your father's firm hires him to hook up his company's in
balandron [24]
Set up the equation ... 60 + 40X = total charges... where X is the number of hours (8.5)

60 + 40(8.5) = ?
60 + 340 = ?
400 = total charges
7 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP! I DON'T UNDERSTAND!
    8·2 answers
  • Solve for this: 2x+4=3x+7
    6·2 answers
  • I need to know the answer to #7
    5·1 answer
  • When Nick shoots a basketball, he either sinks the shot or misses. For each shot Nick sinks, he given 5 points by his father. Fo
    10·1 answer
  • -0.75p-2=0.25 <br><br> Help me please
    8·2 answers
  • What is the vertical component of the translation?<br> A. +4<br> B. -6<br> C. -4<br> D. +6
    7·1 answer
  • What is 0.6 divided by 12.9?
    14·2 answers
  • Whats 3 to the 2nd power times 3 to the 5th power in a single exponent
    13·2 answers
  • A savings account increases from ​$150 to ​$159. What is the percent increase of the savings​ account?
    15·1 answer
  • Mrs. Tart takes a survey in class. She discovers 60% of her students prefer using pens over pencils in class.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!