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loris [4]
3 years ago
9

2(3u+8)=40 two times three u plus eight equals forty

Mathematics
1 answer:
densk [106]3 years ago
5 0

Answer:

Given,

2(3u+8)=40

(3u + 8)= 40/2

3u +8= 20

3u = 20-8

u =12/3

u=4

Value of u is 4

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Solve using perfect square factoring patterns. y2 + 16y + 64 = 0 {8} {0, –1} {–8} {8, –8}
lubasha [3.4K]

Answer:

y^2 + 16y + 64 = 0

(y + 8)(y+8) = 0

y + 8 = 0

y = -8

y + 8 = 0

y = -8

Step-by-step explanation:

7 0
3 years ago
The sum of three consecutive integers is −42. find the three integers.
erica [24]
Let the integers be x - 1, x and x + 1, then
x - 1 + x + x + 1 = -42
3x = -42
x = -42/3 = -14

The three consectutive integers are -15, -14 and -13
4 0
3 years ago
A certain large manufacturing facility produces 20,000 parts each week. The manager of the facility estimates that about 1% of t
Slav-nsk [51]

Answer:

198 is the variance for the number of defective parts made each week.      

Step-by-step explanation:

We are given the following in the question:

Number of parts produced each week =  20,000

Percentage of defective parts = 1%

We have to calculate the variance for the number of defective parts made each week.

We treat defective part as a success.

P(Defective part) = 1% = 0.01

p = 0.01

Then the number defective parts follows a binomial distribution .

Formula for variance =

\sigma^2 = np(1-p) = 20000(0.01)(1-0.01) = 198

Thus, 198 is the variance for the number of defective parts made each week.

8 0
3 years ago
Justine correctly multipled the decials shown. How can the product be correct without three decial places 8.5 x 2.34 = 19.89
Sloan [31]

Answer:

The answer is "19.89".

Step-by-step explanation:

Given:

\to 8.5 \times 2.34

Solution:

     8.5 \times  2.34 \\-----\\

          340 \\

        255 \times

     \\ 17 0\times \times

-------\\

     19.890

\to 19.890 \approx 19.89

that's why the answer is correct.

6 0
3 years ago
Lol I’m dumb please help
NeX [460]

The answer is 50, just divide 10 and 2, you get 5 and multiply the 5 with the 10

5 0
3 years ago
Read 2 more answers
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