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3 years ago

Plz Help you don't need to answer all just sum of them

Mathematics

2 answers:

Aloiza [94]3 years ago

3 0

The answer to 19. 10.6

maria [59]3 years ago

3 0

Answer:

Step-by-step explanation:

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1/2 (n + 4) = 6 whats n?

madreJ [45]

Answer:

n=8

Step-by-step explanation:

1/2 (n + 4) = 6

n+4=12

n=8

7 0

3 years ago

Can someone help me I don't understand

MAVERICK [17]

Answer: C 75

Step-by-step explanation: time to distance is ratio 4:5 = 60:X

In 1min He walks 5/4

in 60mins He walks 5/4 ×60

6 0

2 years ago

(2x-8)(2x+9) help please

lesya [120]

$(2x - 8)(2x + 9) \\ 4 {x}^{2} + 18x - 16x - 72 \\ 4 {x}^{2} + 2x - 72$

HOPE IT HELPS

PLEASE GIVE BRAINLIEST

4 0

2 years ago

Read 2 more answers

Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of ret

Tatiana [17]

Answer:

0.0273

Step-by-step explanation:

np n

10 100

9 100

11 100

7 100

3 100

12 100

8 100

4 100

6 100

11 100

pbar=sumnp/sumn

pbar=10+9+11+7+3+12+8+4+6+11/10+10+10+10+10+10+10+10+10+10

pbar=81/1000

pbar=0.081

nbar=sumn/k=1000/10=100

$Standard deviation for pbar chart=\sqrt{\frac{pbar(1-pbar)}{nbar} }$

$Standard deviation for pbar chart=\sqrt{\frac{0.081(0.919)}{100} }$

$Standard deviation for pbar chart=\sqrt{\frac{0.0744}{100} }$

$Standard deviation for pbar chart=\sqrt{0.0007444 }$

Standard deviation for p-chart=0.0273

3 0

3 years ago

In 2010 there were 2000 American lions in a conservation park in Wisconsin. The lion population is decreasing

frez [133]

Step-by-step explanation:

After each year, the new population of the lions is 100% - 8% = 92% of the population of the lions the year before.

Hence our exponential base should be 0.92, indicating exponential decay. (A)

8 0

3 years ago

Read 2 more answers