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
Which rule matches the function graphed below?
sesenic [268]
Y=x-3
Because if the coordinates are 0,-3 it's 0 (which equals x) -3 = -3
And 2 - 3 = -1

Hope this makes sense (sorry I’m really bad at explaining things)
8 0
4 years ago
A bacteria culture starts with 900 bacteria and doubles in size every half hour.
eduard
(a) 230400 (b)900(2)^2t (c)2297
3 0
4 years ago
Here is a problem that I need help with
77julia77 [94]
You turn 4/5 to 8/10 to get equal denominators and add the numerators together to get 16/10, or 1 6/10 which is reduced to 1 3/5.
8 0
4 years ago
Read 2 more answers
I NEED HELP!!!!!!!!!!!!!!!!
antoniya [11.8K]

Step-by-step explanation:

just think back to the standard circle of radius = 1.

there the trigonometric functions are all represented as sides of right-angled triangles, where the radius is the baseline.

just like the triangle we are seeing here.

the only difference : the baseline (radius) is 17 and not 1.

and that is fine. everything is as in the standard circle, but multiplied by the radius (which is also true for the standard circle, but multiplying by 1 does not change anything, right ?).

a)

angle A is or focus. so, just imagine the triangle turned counterclockwise by 90° (so that AC is horizontal and CB is vertical).

do you see it now ?

sin is the vertical leg, cos the horizontal leg. and the leg lengths here are the standard functions multiplied by the radius.

so,

17 × sin A = 8

sin A = 8/17 = 0.470588235... ≈ 0.47

b)

17 × cos A = 15

cos A = 15/17 = 0.882352941... ≈ 0.88

c)

now B is our focus. imagine the triangle being mirrored at point B, so that B is left, and AC is right. your see it now ?

tan B = sin B / cos B

sin B = 15/17 = 0.882352941... ≈ 0.88

cos B = 8/17 = 0.470588235... ≈ 0.47

tan B = 15/17 / 8/17 = 15/8 = 1.875 ≈ 1.88

d)

cos B = 8/17 = 0.470588235... ≈ 0.47

7 0
3 years ago
What is the equation of the line that passes through the point (1,7)and has a slope of -1<br> ?
serg [7]

Answer:

y = -x + 8

Step-by-step explanation:

First, plug in the slope.

y = mx + b

y = -1x + b

y = -x + b

Then, plug in the point.

7 = -(1) + b

7 = -1 + b

8 = b

3 0
3 years ago
Other questions:
  • Annika biked 37 \text{ km}37 km37, start text, space, k, m, end text this morning and another x \text{ km}x kmx, start text, spa
    13·2 answers
  • Preform the indicated operation x^3 x^2
    14·2 answers
  • A farmer is packing eggs. Each box holds six eggs. The farmer has 860 eggs to pack. I. How many boxes can the farmer fill? 2. Ho
    13·2 answers
  • Can somebody plz help me 15-[7+(-6)+1]^3
    15·2 answers
  • Write the sentence as an inequality. A number t multiplied by -4 is at least −2/5
    10·1 answer
  • which of the following equation represent the amount of money annalise earns y in a week based on the number of hours x she work
    10·1 answer
  • 10. (08.07 LC)
    5·1 answer
  • WILL GIVE BRANLIEST <br> Which number line shows the solution to11x + 14 &lt; –8?
    5·1 answer
  • Help me<br><br>6 = 1/5 (4y + 10)​
    10·2 answers
  • Translate into an algebraic equation, then solve the equation.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!