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
Montano1993 [528]
3 years ago
14

Need help on 2, b, c, and 3 please.

Mathematics
1 answer:
Svetlanka [38]3 years ago
4 0
A/Wall if you have 20 and 30 that box is missing # so you will need to times and you will get something like this 20×30=60 and that's the missing #

B/Its going to be about 768 so you need to times and if you don't get 768


You might be interested in
A line passes through points (0,k) and (2,0) and has a slope of -1.5.
Contact [7]

Answer:

The equation of the line is y = -1.5x + 3

The y-intercept is (0,3)

The value of k is 3.

Step-by-step explanation:

y - 0 = -1.5 (x - 2)

y = -1.5x + 3

4 0
3 years ago
8x - 2y = - 8 5x - 4y = 17
11111nata11111 [884]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( − 3 , − 8 )

Equation Form:

x =- 3 , y = − 8

Step-by-step explanation:

4 0
2 years ago
I don’t know how to find X or Y very urgent, need to figure this out how to solve plz help
Lena [83]

Answer:

x = 9

y = 9√3 = 15.6

Step-by-step explanation:

The triangle given is a right triangle, therefore:

✔️apply trigonometric ratio formula to find x:

Reference angle = 60°

Hypotenuse = 18

Adjacent = x

Thus:

Cos (60) = x/18

Multiply both sides by 18

18×cos(60) = x

9 = x

x = 9

✔️find y by applying pythagorean theorem:

y² = 18² - x² (pythagorean theorem)

y² = 18² - 9² (substitution)

y² = 243

y = √243

y = √(81*3)

y = 9√3 = 15.6

3 0
3 years ago
Louisa starts training for cross country. She records how far she can run without stopping each week.
PIT_PIT [208]

Answer:

I need more info!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A company employs two shifts of workers. Each shift produces a type of gasket where the thickness is the critical dimension. The
AURORKA [14]

Answer:

(−0.103371 ; 0.063371) ;

No ;

( -0.0463642, 0.0063642)

Step-by-step explanation:

Shift 1:

Sample size, n1 = 30

Mean, m1 = 10.53 mm ; Standard deviation, s1 = 0.14mm

Shift 2:

Sample size, n2 = 25

Mean, m2 = 10.55 ; Standard deviation, s2 = 0.17

Mean difference ; μ1 - μ2

Zcritical at 95% confidence interval = 1.96

Using the relation :

(m1 - m2) ± Zcritical * (s1²/n1 + s2²/n2)

(10.53-10.55) ± 1.96*sqrt(0.14^2/30 + 0.17^2/25)

Lower boundary :

-0.02 - 0.0833710 = −0.103371

Upper boundary :

-0.02 + 0.0833710 = 0.063371

(−0.103371 ; 0.063371)

B.)

We cannot conclude that gasket from shift 2 are on average wider Than gasket from shift 1, since the interval contains 0.

C.)

For sample size :

n1 = 300 ; n2 = 250

(10.53-10.55) ± 1.96*sqrt(0.14^2/300 + 0.17^2/250)

Lower boundary :

-0.02 - 0.0263642 = −0.0463642

Upper boundary :

-0.02 + 0.0263642 = 0.0063642

( -0.0463642, 0.0063642)

7 0
3 years ago
Other questions:
  • Arrange 2/3, 3/5, 5/7 in order from least to greatest?
    6·2 answers
  • Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n
    10·1 answer
  • Find two numbers the exact answer is between 3 times 567? PLZ HELP!!!!!
    6·1 answer
  • List all possible permutations
    9·1 answer
  • With this triangle find the value of x
    10·1 answer
  • If 2x+y=12 and x+2y=-6 what is the value of 2x+2y
    10·1 answer
  • I need to find the unknown dimension of a rectangle if its area is 216 square miles and one dimension measures 6 miles
    6·1 answer
  • Write the equation of the line perpendicular to y = 6/5x + 4/5 that passes through the point (-3,2).
    12·1 answer
  • Find the median: 86, 24, 65, 65, 24, 24 *
    14·2 answers
  • Which function is represented by the graph below?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!