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
avanturin [10]
3 years ago
14

I do n't understand please help?

Mathematics
2 answers:
Lyrx [107]3 years ago
7 0

Answer:

1.  145-(3squared times 4)=109

2. 45 divided by 9 times 12-8= 52

3.  2 squared +3 times 4-12= 4

4.[155-(3 times 9) times 2] -12= 89

5. [(6 times 2) +(5 times 5)  times 3= 111

6. 2 times {15+[24-(1.5 times 2)]}= 72

Step-by-step explanation:

(BOMDAS) brackets, operations, multiplication, division, addition, subtraction

1. (deal with the brackets first)

3 squared=9 then times by 4 =9*4=36

so..

145-36=109

2. (start with division )

45 divided by 9 =5

so

5 times 12-8= 52

3. 2 squared = 4

4 times 3 =12

so

4+12-12 =4

4.  (deal with brackets first)

3 times 9 = 27

27 times 2=  54

155-54= 101

101-12=89

5. (deal with the brackets first)

6 times 2 =12    

5 times 5=25

so 12+25=  37 times 3 = 111

6.  (deal with the brackets first)

1.5 times 2= 3

24-3= 21

15+21=36

2 times 36= 72

hope this helps!!!

 

Blizzard [7]3 years ago
3 0
1) 109 Explanation: do what is in the () first so 3^2 is going to turn into 9 which is the equation is now going to be 145-(9x4). 9x4 is 36 so it is 145-36 which gives you 109.
2) 52 Explanation: 45 divided by 9 is 5 then 5 times 12 gives you 60. equation now is 60-8 which equals 52.
3) 4 Explanation: 3 times 4 is 12. equation now is 2^2+12-12. all is left is 2^2 which is 4.
4) 89
5)111
6)72
You might be interested in
(help) Miller’s Farm had apples on sale for $1.78 a pound. Maria spent $15.21 on apples. How many pounds did she buy?
jolli1 [7]

Answer:

8.5 pounds

Step-by-step explanation:

$ 1.78 - 1 pound

$ 15.21 - 15.21/1.78

= 8.5

5 0
2 years ago
Write an expression to show k less than 3.5
Natalija [7]
Answer: k < 3.5
explanation: < means less than and > means more than and = means equal to so k < (less than) 3.5
5 0
3 years ago
Help me with this pls
melomori [17]
A and E, they are basically at the same point around
5 0
3 years ago
Which of the following comparisons is False
Verizon [17]
A graph shows the first comparison is true, and the C temperature is cooler than the F temperature for the remaining comparisons.

The comparison that is FALSE is ...
  C.....30 °C is warmer than 90 °F

_____
30 °C = 86 °F
32.2 °C ≈ 90 °F

4 0
3 years ago
The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st
anzhelika [568]

Sample standard deviation

Mean of data = 84.4

Calculate deviations from the mean = 23.4, 17.8, 3.4, 1.4, -2.6, -3.6, -4.6, -5.6, -13.6 and -15.6

Squaring these deviations; we get 547.56, 316.84, 11.56, 1.96, 6.76, 12.96, 21.15, 31.36, 184.96, 243.36

Adding these we get 1378.47

As its a sample Std Dev we divide by 10 - 1 = 9. For the popklation Std Dev we divide by the number of scores (10).

Std Deviation for sample = sqrt ( 1378.47 / 9) = 12.4 to nearest tenth (answer)

Population Std Dev = sqrt (1378.47 / 10) = 11.7 answer

Theres a lot of arithmetic there so hope i haven't slipped up anywhere!

6 0
3 years ago
Other questions:
  • A line includes the points (0, 4) and (1, 7). What is its equation in slope-intercept form?
    15·2 answers
  • A triangle has sides of lengths 9, 7, and 12. Is it a right triangle? Explain.
    14·1 answer
  • The 08:10 train from goblin's gap gets to mermaid's bay at ?
    5·2 answers
  • The table shows the ingredients used in a medicine. If all the decimals were rounded to the nearest whole percent, would this ta
    11·2 answers
  • An apple has 6 j of energy. the apple sits on the counter 3m high. what is the mass of the apple
    14·2 answers
  • You work at a coffee shop.a drink on the menu needs 1/3 cup of milk .You only have 5/6 cup of milk. How many of this drink can u
    9·1 answer
  • Simplify quantity 6 x squared plus 20 end quantity over 4
    12·1 answer
  • Use the interactive tool to find which of the following expressions have a sum of 6. Check all that apply.
    7·1 answer
  • Fine the missing exponent
    8·2 answers
  • The radius of a circle is 3 cm. Find it's area in terms of pi. 28.27 cm2 is wrong​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!