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dalvyx [7]
3 years ago
7

How t o solve negative square root of 169

la1" title=" \sqrt[ - ]{169} " alt=" \sqrt[ - ]{169} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
oee [108]3 years ago
4 0
The answer to the question is -13

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Formulate but do not solve the following exercise as a linear programming problem. Kane Manufacturing has a division that produc
earnstyle [38]

Answer:

z  - 2*x   -  1.5*y   =  0   maximize

subject to:

3*x  +  5*y   ≤  800

8*x  + 3*y   ≤   1200  

x, y  >  0

Step-by-step explanation:

Formulation:

Kane Manufacturing produce  x  units of model A (fireplace grates)

and  y units of model B

                  quantity   Iron cast lbs    labor (min)   Profit $    

Model  A          x               3                      8                  2

Model  B          y               5                      3                  1.50

We have   800 lbs of iron cast  and 1200 min  of labor available

We need to find out how many units  x  and units y per day to maximiza profit

First constraint   Iron cast lbs     800 lbs

3*x  +  5*y   ≤  800             3*x  +  5*y  +  s₁   =  800

Second constraint  labor    1200 min available

8*x  + 3*y   ≤   1200              8*x  + 3*y           + s₂  =  1200  

Objective function

z  =  2*x  +  1.5*y         to maximize    z  - 2*x   -  1.5*y   =  0  

x > 0   y  >  0

The first table is  ( to apply simplex method )

z         x        y       s₁      s₂       Cte

1        -2       -1.5     0      0          0

0        3         5       1       0        800

0        8         3       0       1       1200

7 0
4 years ago
A study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitne
BaLLatris [955]

Answer:

Step-by-step explanation:

Given that a study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitness.

Subjects were randomly selected to participate and then randomly assigned to one of the two programs. After six months of exercising, they were given a score based on their fitness performance. Scores ranged from 19 to 73, with higher scores indicating higher performance.

Here there are two groups one for each program.  After recording the scores groupwise, mean, std deviation of each group to be calculated.

Then independent sample test (option B) to be done.

Paired data set is not right because same person cannot be in two programs.

Here proportion is not recorded so D is wrong.  Since variance is not checked anova is not right.  Independence is not checked so E is wrong.  Regression is wrong because there is no estimate for regression line here

B) is right.

6 0
3 years ago
16-11-13-5-10 2-15-18 13-23 8-11-17 11-12 22-11-12-19 decode message
Katen [24]

Answer:

16-11-13-5-10 => P-K-M-E-J

2-15-18 => B-O-R

13-23 = > M-W

8-11-17 => H-K-Q

11-12 => K-L

22-11-12-19 => V-K-L-S

Step-by-step explanation:

Given

See attachment for code key

Required

Decode

16-11-13-5-10

2-15-18

13-23

8-11-17

11-12

22-11-12-19

From the code key, we can see that each number represent the alphabet at that position;

To do this, we simply replace each number with the alphabet they represent.

So, we have:

16-11-13-5-10 => P-K-M-E-J

2-15-18 => B-O-R

13-23 = > M-W

8-11-17 => H-K-Q

11-12 => K-L

22-11-12-19 => V-K-L-S

4 0
3 years ago
What is the sum of 4.2 × 10↑5 and 5.3 × 10↑5 in scientific notation?
Andre45 [30]
It is 2.226 X 10(Exponent is 11)
3 0
3 years ago
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil
Ugo [173]

Answer:

Step-by-step explanation:

Set up hypotheses as

H_0: x bar = 50\\H_a: x bar

(Left tailed test at 5% level)

Sample mean = 53.4

Sample std dev s = 4.4

Sample std error = 4.4/sqrt 50 = 0.6222

Mean diff = 3.4

Test statistic = Mean diff/std error = 0.5464

(t test only can be used as population sigma is not known)

df = 50-1 =49

p value = 0.2939

Since p>0.05 we accept null hypothesis

Specification has not been met.

6 0
4 years ago
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