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GuDViN [60]
2 years ago
14

The mean temperature for the first 7 days in January was 6 °C.

Mathematics
1 answer:
IRISSAK [1]2 years ago
7 0

Answer:

\frac{x + x + x + x + x + x + x}{7} = 6 \\  \frac{7x}{7}   = 6 \\ x = 6 \\  \frac{6 + 10}{8}  =  \frac{16}{2}

Step-by-step explanation:

answer =2

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you can see that there is 8 cm in middle of the trapezoid. above the trapezoid, it says 6 cm, below the trapezoid, it says 11 cm
aniked [119]

Answer:

The measure of the longer base is:

                           9 centimeters

Step-by-step explanation:

We know that the area of a trapezoid with height h and two parallel bases b and b' is given by the formula:

Here we have:

The area of a trapezoid is 30 square centimeters. The height is 4 centimeters. The shorter base measures 6 centimeters.

i.e.  

Step-by-step explanation:

6 0
3 years ago
You believe that eating an apple a day is healthy and want to design an experiment to find out. You have available 40 volunteers
Gwar [14]

The best design for this experiment would be a repeated measures design. This is ideal to determine if eating an apple makes you healthy.

<h3>What is an experimental design?</h3>

An experimental design refers to the general structure of an experiment including how people are distributed into the control and experimental group to test a specific phenomenon.

<h3>What is a repeated measures design?</h3>

In a repeated measures design all participants are both parts of the control group, in this case, people who do not eat apples, and the experimental group, or people who eat apples.

<h3>What does this design imply?</h3>

In the case of determining if eating an apple every day, this design implies:

  • All participants will be asked to not eat apples every day for a specific period such as one or two months, and health levels will be measured during this time.
  • After the first step, all participants will be asked to eat an apple every day during the period, and their health will be measured.
  • The researcher can compare the results of each participant, which is more accurate than comparing one participant to another.

Learn more about experiments in: brainly.com/question/1452319

7 0
2 years ago
A history exam features five questions. Three of the questions are multiple-choice with four options each. The other two questio
nadezda [96]

There are total 500 ways in which Caroline can answer the exam.

Step-by-step explanation:

Here, the total number of questions in the test  = 5

The total number of multiple choice questions = 3

The total number of True/False question = 2

Let the numbers of the given question be 1,2 ,3,4, and 5.

Now, the total number of options available to answer question 1 = 5 options

Similarly,  number of options available to answer question 2 = 5 options

The number of options available to answer question 3 = 5 options

The number of options available to answer question 4 = 2 options ( T or F)

The number of options available to answer question 5 = 2 options ( T or F)

So, here the total available options to answer all 5 questions

= The total option available for  question ( 1 x 2 x 3 x 4 x 5)

= ( 5 ways  x 5 ways x 5 ways x 2 ways x 2 ways)

= 500 ways

Hence, there are total 500 ways in which Caroline can answer the exam.

8 0
3 years ago
the table shows the name of each volunteer and the height of the baby elephant each volunteer measured. which volunteer measured
daser333 [38]
So in order to compare, the measurements have to same units.  So lets convert everything to feet. 

George  2 yds = 6 ft            Kelsey  68 inches = 5 ft 8"

Mariah  5 feet                       Brian  5 ft 10 "

George measured the tallest at 6'   

Hope this helped.

4 0
3 years ago
Can anyone help me? The top is geometry and the bottom is algebra...
umka21 [38]

Answer:

<u>Geometry</u>

AC equals 13x + 7

<u>Algebra</u>

1. x = -16

2. x = 2

3. 2x^2 - 5x -7

4. (2x + 1)(x - 5)

Step-by-step explanation:

6 0
3 years ago
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