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
malfutka [58]
3 years ago
12

The mean of eight numbers is 83. the mean of another four numbers is 14. find the mean of the combined set of numbers.

Mathematics
1 answer:
vladimir2022 [97]3 years ago
8 0
Total numbers =8+4=12
mean= \frac{83*8+14*4}{8+4}mean= \frac{664+56}{12} 
= \frac{720}{12} 
=60
You might be interested in
How would 5,000,000,000 + 70,000,000 + 70,000 + 700 + 8 be written in standard form?
amm1812

five billion seventy million seventy thousand seven hundred and eight

4 0
3 years ago
Which angle determines whether or not quadrilateral SVUT is a trapezoid? What measure would the angle need to be for SVUT to be
Lorico [155]

Answer:  The answer is ∠TUV.

Step-by-step explanation: Given in the question a quadrilateral SVUT with ∠SVU = 112°. We need to determine the angle whose measure will decide whether or not the quadrilateral SVUT is a trapezoid.

We know that for a quadrilateral to be a trapezoid, we need only one condition that one pair of opposite sides must be parallel.

So, in quadrilateral SVUT, since the measure of  ∠SVU is given, so we can decide  it is a trapezoid or not if we know the measure of ∠TUV. As ST and UV cannot be parallel, so its meaningless to determine ∠TSV.

For SV and TU to be parallel to each other, we need

∠SVU + ∠TUV = 180° (sum of interior alternate angles).

Therefore,

∠TUV = 180° - 112° = 68°.

Thus, we need to determine ∠TUV and its measure shoul be 68°.

7 0
3 years ago
I need help on this question plz and thank you <br> (Question 5 and if you can number 3 as well)
Alex Ar [27]
H = -2r + s/πr

C = 3A-a-b

If you need step by step comment
7 0
3 years ago
If you toss a fair coin five times and get tails every time, then the sixth toss MUST be heads. Is this true?
Umnica [9.8K]

Answer:

no it is not true there is still a 50% chance it will be tails

Step-by-step explanation:


3 0
3 years ago
Whats a quadratic equation that has the roots of 6 and negative 9
Komok [63]

Answer:

x^2-3x-54

Step-by-step explanation:

(x+6)(x-9)     Setup the roots

x^2-9x+6x-54   FOIL out the terms

x^2-3x-54    Add like terms together

5 0
3 years ago
Other questions:
  • Your credit limit is $2,500 what is the max you should ever owe on this card?
    14·1 answer
  • How do you write 0.0000000706 in scientific notation? ____× 10^____
    5·2 answers
  • How many codons could be formed if each codon was two bases long?
    5·1 answer
  • Can someone help me please
    8·1 answer
  • The sum of a and 46 is equal to k. Let k = 97. Which equation can be used to find the value of a? A. a + 46 = 97 B. a – 97 = 46
    13·1 answer
  • In Morristown, the library is 3 kilometers south of the courthouse and 4 kilometers west of the community swimming pool. If a bi
    12·1 answer
  • If 6 is {2\over 5} of a number N,then N=
    13·1 answer
  • If i get a 98 on a test that is worth 25% of my grade what is my grade? (my grade right now is a 76) . 30 points !
    8·1 answer
  • Explain whether the following statement is true or false.
    11·2 answers
  • Mark, Paul and Brian share some sweets in the ratio 1:3:5. Mark gets 14 sweets. How many
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!