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
Anastaziya [24]
3 years ago
6

Help me please 38 points!!!

Mathematics
2 answers:
kolbaska11 [484]3 years ago
7 0

Answer:

1). 10 * 5 = 50

2). 1/2 * 4* 3 = 6

3). 10 * 3 * 10 = 300

4). 2(5) + 2(7) = 10 + 14 = 24

5). 4 * 2² = 4*4 = 16

6). 7 * 8 * 2 = 56 * 2 = 112

7). 1.3 * 15 = 19.5

8). 3(6 + 11) = 3* 17 = 51

9). 45/9 = 5

10). 2 *14² = 2* 196 = 392

11). 5 * 12 * 7 = 60 * 7 = 420

12). 1/2 * 9 * 12 = 54

13).1/2(24)(9 + 21) = 12 * 30 = 360

14). 14 * 13 = 182

15). 16 * 8 * 5 = 640

16). 75/5 = 15

17). 2(5²) = 2 * 25 = 50

18). 8(2.5 + 4.2) = 8 * 6.7 = 53.6

19). 1/2(3)(5 + 6) = 33/2 = 16.5

20). 3.14(6²) = 3.14 * 36 = 113.04

Anon25 [30]3 years ago
5 0

Answers:

1. 10*5 =50

2. \frac{1}{2} *4*3=2*3=6

3. 10*3*10=30*10=300

4. 2(5)+2(7)=10+14=24

5. 4*2^{2} =4*4=16

6. 7*8*2=56*2=112

7. 1.3*15=\frac{13}{10}*15=19.5

8. 3(6+11)=3*17=51

9. \frac{45}{5} =\frac{5*9}{5} =9

10. 2*14^{2} =2*196=392

11. 5*12*7=60*7=420

12. \frac{1}{2} *9*12=\frac{12}{2} *9=54

13. \frac{1}{2}(24)(9+21)=12*30=360

14. 14*13=182

15. 16*8*5=128*5=640

16. \frac{75}{5}=\frac{5*15}{5}=15

17. 2(5^{2} )=2*25=50

18. 8(2.5+4.2)=8*6.7=53.6

19. \frac{1}{2} (3)(5+6)=1.5*11=16.5

20. 3*14(6^{2} )=3*14*36=42*36=1,512

You might be interested in
Bailey buys a car for $18,000 and it has a depreciation value of 16% per year after 3
sergiy2304 [10]

Answer:

$10668.67

Step-by-step explanation:

If the car value goes down 16% each year, after the first year, it will be worth 1520.

The next year, it will be worth $12700.80

After the third year, the car will be worth $10,668.67

5 0
2 years ago
Let’s work with some actual data this time. Go online to research and find a set of real-world data in two variables. The data c
slega [8]

The quadratic regression equation that best fits the data set is y = 32.86x² - 379.14x  + 1369.14

<h3>The data points </h3>

The following table of values represents the data points that would be used to solve this question:

x 3 4 5 6 7 8 9

y 470 416 403 226 314 338 693

Where:

  • x represents years since 2000
  • y represents the annual revenue of a manufacturing company in thousand dollars

<h3>The function of the dataset</h3>

The table of values illustrates a quadratic function.

The function would be calculated using a graphing calculator

From the graphing calculator, we have:

a = 32.86; b = -379.14 and c = 1369.14

A quadratic regression equation is represented as:

y = ax² + bx + c

So, we have:

y = 32.86x² - 379.14x  + 1369.14

Hence, the quadratic regression equation that best fits the data set is y = 32.86x² - 379.14x  + 1369.14

<h3>Why the function type was chosen?</h3>

From the table of values in (a), we can see that as x increases; the value of y decreases and then increases after it reaches a minimum.

This illustrates the behavior of a quadratic regression function

See attachment for the scatter plot

Read more about quadratic regression equation at:

brainly.com/question/14786188

#SPJ1

5 0
2 years ago
Plz help. Simplifying simplify the answers
galben [10]
9/32
1/3
1/9
7/18
7/20
5/44
Still in fractions?
6 0
3 years ago
Read 2 more answers
Help please..<br><br> find the area of the region that lies inside both curves
just olya [345]
Too hard for me. I'm only in 5th grade
7 0
3 years ago
Pleasee help x.x 1. Solve the system by elimination-
patriot [66]
Q1. The answer is x = 1, y = 1, z = 0

<span>(i) -2x+2y+3z=0
</span><span>(ii) -2x-y+z=-3 
</span>(iii) <span>2x+3y+3z=5
</span><span>_________
Sum up the first and the third equation:
</span>(i) -2x+2y+3z=0
(iii) 2x+3y+3z=5
_________
5y + 6z = 5

Sum up the second and the third equation:
(ii) -2x-y+z=-3 
(iii) 2x+3y+3z=5
_________
2y + 4z = 2


(iv) 5y + 6z = 5
(v) 2y + 4z = 2
________
Divide the fifth equation by 2
(iv) 5y + 6z = 5
(v) y + 2z = 1
________
Multiple the second equation by -3 and sum the equation
(iv) 5y + 6z = 5
(v) -3y - 6z = -3
________
2y = 2
y = 2/2 = 1


y + 2z = 1
1 + 2z = 1
2z = 1 - 1
2z = 0
z = 0


-2x-y+z=-3
-2x - 1 + 0 = -3
-2x = -3 + 1
-2x = -2
x = -2/-2 = 1



Q2. The answer is x = -37, y = -84, z = -35

<span>(i) x-y-z=-8 
(ii) -4x+4y+5z=7 
(iii) 2x+2z=4
______
</span>Divide the third equation by 2 and rewrite z in the term of x:
(iii) x+z=2
z = 2 - x
______
Substitute z from the third equation and express y in the term of x:
<span>x-y-(2-x)=-8 
x - y - 2 + x = 8
2x - y = 10
y = 2x - 10
______
Substitute z from the third equation and y from the first equation into the second equation:
</span><span>-4x + 4y + 5z = 7 
-4x + 4(2x - 10) + 5(2 - x) = 7
-4x + 8x - 40 + 10 - 5x = 7
-x -30 = 7
-x = 30 + 7
x = -37
y = 2x - 10 = 2*(-37) - 10 = -74 - 10 = -84
z = 2 - x = 2 - 37 = -35</span>
8 0
3 years ago
Other questions:
  • What is x?: 6x + 45 ≤ (-4x) - 105
    15·1 answer
  • In the figure the horizontal lines are parallel and ab=bc=cd if lm =5 find jm
    12·1 answer
  • Pint-Sized Portraits has 6 different backgrounds and 3 poses in which to photograph children. How many different pictures are th
    15·2 answers
  • Which system of linear inequalities is represented by the graph?
    8·1 answer
  • Necesito un problema para esta ecuación <br><br> (m) (m-2) =48
    14·1 answer
  • What is measurement angle C?<br>​
    11·1 answer
  • The drama club is having a fundraiser selling novelty cups. Their goal is to make a profit of $1000. If they receive $3.50 profi
    13·1 answer
  • I need help ASAP!!
    6·1 answer
  • What is the area of the polygon
    5·1 answer
  • HELP Two workers, if they were working together, could finish a certain job in 24 days. If one of the workers does the first hal
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!