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tigry1 [53]
2 years ago
15

The medical laboratory claim that the mean turn-around time for the performance of the battery of tests on blood sample is 1.005

business days. The manager of large medical practice believes that the actual mean is larger. A random sample of 45 blood samples yielded mean 2.09 and standard deviation 0.13 days perform the relavent test at 10% level of significance using there data.
Mathematics
1 answer:
Shkiper50 [21]2 years ago
7 0

Answer:

Hi mate

Step-by-step explanation:

Please broswer se search karo

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Daine simplified the expression below.
Dennis_Churaev [7]

Answer:

Step-by-step explanation:

8(1 + 2i) -  (7 - 3i) = 8*1 + 8*2i + 7*(-1) - 3i*(-1)

                          = 8 + 16i -7 + 3i

                          = 8 - 7 + 16i + 3i

                          = 1 + 19i

Daniel forgot to multiply 2i by 8

3 0
3 years ago
HELP!!! use cross multiplication
Tresset [83]
Let x be the number of square feet to be mowed
215 square feet take 22 minutes
x square feet take 12 minutes

22x = 12 \times 215 \\ x = (12 \times 215)  \div 22
6 0
3 years ago
Read 2 more answers
Un grupo de 4 amigos va al cine y las entradas les han costado 24$.¿cuanto pagaria en total un grupo de 7 amigos por sus entrada
vodka [1.7K]

hi

4 entries are  24   so one  entry is  24/4 = 6  

so 7 friends pay  6*7 = 42

5 0
3 years ago
3(s-5)/4 -3 = 4s- (s-3)/2<br>pls answer fast​
Jobisdone [24]

Answer:

s =  \frac{9± \sqrt{ - 39} }{4}

Step-by-step explanation:

\frac{3(s - 5)}{4 - 3}  =  \frac{4s \times (s - 3)}{2}

➡️ \frac{3(s - 5)}{1}  = 2s \times (s - 3)

➡️ 3s - 15 = 2 {s}^{2}  - 6s

➡️ 3s - 15  -  2 {s}^{2}  + 6s = 0

➡️ 9s - 15 - 2 {s}^{2}  = 0

➡️ - 2 {s}^{2}  + 9s - 15 = 0

➡️ 2 {s}^{2}  - 9s + 15 = 0

➡️ s =  \frac{ - ( - 9)± \sqrt{( - 9 {)}^{2}  - 4 \times 2 \times 15} }{2 \times 2}

➡️ s =  \frac{9± \sqrt{81 - 120} }{4}

➡️ s =  \frac{9± \sqrt{ - 39} }{4}

➡️ s∉ℝ

5 0
3 years ago
4. If Mahamat has 36 coins totaling $3.00, and the coins are all nickels and quarters, how many of each coin does he have?​
MakcuM [25]

The answer is 30 i believe :) ♡

6 0
3 years ago
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