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
inn [45]
3 years ago
11

Matching quantities with units

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:

1. Volume = length x width x height => cubic centimetres.

2. Perimeter = 2(length) + 2(width) => metres.

3. Speed = Distance /time => metres per second.

4. Area = length x width => square metres.

Step-by-step explanation:

1. Volume = length x width x height

If the length, width and height are measured in centimetre (cm) , then, the unit of the volume will be:

Volume = cm x cm xcm = cm3 i.e cubic centimetres.

2. Perimeter = 2(length) + 2(width)

If the length and width are measured in meter (m), then, the unit of the perimeter will also be in metre (m).

3. Speed = Distance /time

If the unit of distance is measured in metre (m) and the time is measured in second (s), then , the unit of the speed will be:

Speed = Distance /time = m/s i.e metres per second.

4. Area = length x width

If the length and width are measured in metres (m), then, the unit of the area will be:

Area = m x m = m2 i.e square metres

You might be interested in
The number of Roberto’s baseball cards is ¾ the number of David’s cards If Roberto gives ½ of his cards to David, what will be t
inn [45]

Answer:

1/4, 0.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The bag was filled with red marbles and blue marbles in the ratio of 5:7. If there were 180 marbles in the bag,how many were red
SOVA2 [1]
You just have to multiply each number by 180 and that's how many you have of each color respectively
3 0
3 years ago
Read 2 more answers
What value of (n) makes the equation true ? -2(n)+1.8=3.2 A. -0.7 B. 0.7 C. -3.4 D -2.5
Genrish500 [490]
The answer is A -0.7
-2(n) + 1.8 simplifies to:
-2n + 1.8 = 3.2
       - 1.8    -1.8
-2n = 1.4
n = -7
5 0
3 years ago
A randomized controlled study was designed to test whether regular drinking of cranberry juice can prevent the recurrence of uri
Kamila [148]

Answer:

1. The chi-squared statistic = 10.36

The degrees of freedom = 17

The p-value for the test = 0.89

2. The range of the p-value from the Chi squared table = 0.75 < p-value < 0.90

Step-by-step explanation:

1. The Chi squared test is given as follows;

\chi ^{2} = \sum \dfrac{\left (Observed - Expected  \right )^{2}}{Expected  }

Therefore,

                              UTI   No UTI    %     Total

Cranberry juice       8           42      84     50

Lactobacillus          19          30       61     49

Control                    18          30      60    50

The chi-squared statistic is given as follows;

\chi ^{2} = \dfrac{\left (8- 18\right )^{2}}{18} +  \dfrac{\left (42 - 30\right )^{2}}{30} = 10.36

The chi-squared statistic = 10.36

The degrees of freedom, df = 18 - 1 = 17 since the all of the expected count have a minimum value of 18

With the aid of the calculator we find the p value as p as follows;

p = 0.9 - \dfrac{10.36 - 10.085}{12.972 - 10.085} \times (0.9 - 0.75)

The p-value for the test = 0.89  

2. The range of the p-value from the Chi squared table is given as follows;

0.75 < p-value < 0.90.

5 0
3 years ago
Given a cone with a volume of 288, and height 7 in., find the base radius of the cone. Use 3.14 for pi. Round your answer to the
jek_recluse [69]

Answer:

The radius of the base is r=6.3\ in

Step-by-step explanation:

we know that

The volume of a cone is equal to

V=\frac{1}{3}\pi r^{2} h

we have

V=288\ in^{3}

h=7\ in

\pi=3.14

substitute and solve for r

288=\frac{1}{3}(3.14)r^{2} (7)

864=(3.14)r^{2} (7)

r^{2}=864/[(3.14)(7)]

r=6.3\ in

3 0
2 years ago
Other questions:
  • The final consumer of the product pays GST. Consider the following:
    15·2 answers
  • PLEASE HELP WILL GIVE 50!!! POINTSSSS!!!!
    5·1 answer
  • Find the general solution of the given differential equation. y''' − 2y'' − 4y' + 8y = 0
    9·1 answer
  • Mary invests £12000 in a saving account.
    14·1 answer
  • According to General Social Survey of 2016, the population distribution of number of years of education for self-employed indivi
    6·1 answer
  • Dana has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the ra
    6·1 answer
  • In right triangle ABC with right angle B, the sin 48° is equal to the cosine of what angle measure?
    5·1 answer
  • Can you assist? I really need this one​
    14·1 answer
  • Write two numbers that multiply to the value on top and add to the value on bottom.<br> 50<br> 15
    10·1 answer
  • Please huryyyyyyyyy please helpppppp
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!