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stealth61 [152]
3 years ago
8

-6y^2 + 9y^2 - y - 9 - 7y^2 + 1 + 10y + 3y

Mathematics
2 answers:
Simora [160]3 years ago
7 0

Answer:

-4y² + 12y - 8

Step-by-step explanation:

-6y² + 9y² - y - 9 - 7y² + 1 + 10y + 3y

-6y² + 9y² - 7y² - y + 10y + 3y - 9 + 1

-4y² + 12y - 8

taurus [48]3 years ago
6 0

Answer: -4y^(2)+12y-8

Step-by-step explanation: Combine like terms

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Milan fills an aquarium to a depth of 3/8 meters in 6 minutes.
Nadya [2.5K]

Answer:

1/16m per minute

Step-by-step explanation:

If Milan fills the aquarium to a depth of 3/8 in 6 minutes then just divide 3/8 by 6 to find how much she fills in 1 minute

5 0
2 years ago
In a random sample of 7 residents of the state of California, the mean waste recycled per person per day was 1.5 pounds with a s
ale4655 [162]

Answer:

CI(99%) = ( 0.93 , 2.07)

Therefore at 99% confidence interval (a,b) = ( 0.93 , 2.07)

Critical value z(at 99% confidence) = z(0.005) = 2.58

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean gain x = 1.5

Standard deviation r = 0.58

Number of samples n = 7

Confidence interval = 99%

Critical value z(at 99% confidence) = z((1-0.99)/2)

z(0.005) = 2.58

Substituting the values we have;

1.5+/-2.58(0.58/√7)

1.5+/-2.58(0.2192)

1.5+/-0.565536

1.5+/-0.57

= ( 0.93 , 2.07)

Therefore at 99% confidence interval (a,b) = ( 0.93 , 2.07)

7 0
3 years ago
Tell whether the angles are complementary or supplementary. Then find the value of x.
Lady bird [3.3K]

Answer:

complementary x=5

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A bottling plant produces bottles of 500 ml at the production rate of 10,000 bottles per hour. An inspector randomly picks up 10
galben [10]

Answer:

e.none of these

Step-by-step explanation:

Computations For CC for Fraction defective

Sample No  d  p=d/100

1                    0       0

2                    0      0

3                    2     0.02

4                     1     0.01

5                     0      0

6                     1      0.01

7                     2      0.02

8                     0        0

                 Total   0.06

\overline{p} =\frac{1}{k}\sum p=\frac{0.06}{8} =0.0075

\overline{q} =1- 0.0075= 0.9925

3 sigma control limits for p chart are given by:

\overline{p} \pm 3\sqrt{\overline{p}\overline{q}/n}\Rightarrow 0.0075\pm 3\sqrt{\frac{0.0075*0.9925}{100}}

= 0.0075\pm0.0259\Rightarrow ( 0.0334,0 )

hence option e is correct

6 0
3 years ago
Write an equation of a line wit the given slope and y intercept
Orlov [11]

Answer:

Step-by-step explanation:

the standard equation of a line is in the form y=mx+b where m is the slope and b is the y intercept so if m = 1/4 and b = -3/4 you can just replace those spots giving you y=1/4x+-3/4

6 0
3 years ago
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