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Molodets [167]
3 years ago
9

What expression is equivalent to -3(6x+7)+4(7x+2)

Mathematics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer:

10x-13

Step-by-step explanation:

First Distribute:

-18x-21+28x+8

Then combine like terms:

10x-13

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A manufacturer produces two models of toy airplanes. It takes the manufacturer 20 minutes to assemble model A and 10 minutes to
Georgia [21]

Answer:

A - 90 units

B = 0 units

Step-by-step explanation:

Here we have two models A and B with the following particulars

Model A B    (in minutes)

 

Assembly 20 15

Packing          10 12

Objective function to maxmize is the total profit

z=12A+8B where A and B denote the number of units produced by corresponding models.

Constraints are

20A+15B\leq 1800\\\\10A+12B\leq 1080

These equations would have solutions as positive only

Intersection of these would be at the point

i) (A,B) = (60,40)

Or if one model is made 0 then the points would be

ii) (A,B) = (90,0) oriii) (0, 90)

Let us calculate Z for these three points

A B Profit

60 40 1040

90 0 1080

0 90 720

So we find that optimum solution is

A -90 units and B = 0 units.

6 0
3 years ago
What is the slope of the line through(-5,2)and (6,7) on a standard (x,y) coordinate plane.
Sergio039 [100]

Answer:

m= 5/11

Step-by-step explanation:

(-5,2) and (6,7)

Slope:

m=(y2-y1)/(x2-x1)

m=(7-2)/(6+5)

m= 5/11

7 0
3 years ago
Can someone help me #11 PLEASE SHOW YOUR WORK
damaskus [11]
Since the triangle is equilateral, QR = RS = QS.
a. MS = (1/2)74
    MS = 37
b. Half of the equilateral triangle makes a right triangle. Use Pythagorean Theorem to find QM. 
a^2 + b^2 = c^2
37^2 + b^2 = 74^2
1369 + b^2 = 5476
subtract 1369 from both sides
b^2 = 4107
take the square root if both sides
b = 64.1
QM = 64.1
5 0
4 years ago
Help!Tytytytytyyttytttyyy
sladkih [1.3K]

Answer:

the answer is 42 because your dividing 7 by 9

Step-by-step explanation:

3 0
3 years ago
What is the next letter? azbycxd
elixir [45]
The next letter is w because it is the same distance form the middle as d
3 0
3 years ago
Read 2 more answers
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