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soldier1979 [14.2K]

1 year ago

12

Which of the following is a square root of 3 (cosine (StartFraction 4 pi Over 9 EndFraction) + I sine (StartFraction 4 pi Over 9

EndFraction) )?

1 answer:

kiruha [24]1 year ago

3 0

Answer:

D

Step-by-step explanation:

edge

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Jamie took 7 maths tests and got a score of 68,71,71,84,53,62 and 67 .What was Jamie's mode score?

Taya2010 [7]

The modal score would be 71. 71 appears the most in the list.

6 0

2 years ago

Oblicz.Pamiętaj o kolejności wykonywania działań

SashulF [63]

Answer:

33.275

Step-by-step explanation:

<u>1 step:</u> Difference in brackets

$3.5-2\dfrac{1}{3}=3\dfrac{1}{2}-2\dfrac{1}{3}=(3-2)+\left(\dfrac{1}{2}-\dfrac{1}{3}\right)=1+\dfrac{3-2}{3\cdot 2}=1+\dfrac{1}{6}=1\dfrac{1}{6}$

<u>2 step:</u> $0.75\div\dfrac{1}{3}$

$0.75\div\dfrac{1}{3}=\dfrac{75}{100}\div \dfrac{1}{3}=\dfrac{3}{4}\times \dfrac{3}{1}=\dfrac{9}{4}$

<u>3 step:</u> $1.28\div 0.04$

$1.28\div 0.04=128\div 4=32 \ \text{Move point two decimal places}$

<u>4 step:</u>

$2\dfrac{1}{4}\times 1\dfrac{1}{6}=\dfrac{2\cdot 4+1}{4}\times \dfrac{1\cdot 6+1}{6}=\dfrac{9}{4}\times \dfrac{7}{6}=\dfrac{63}{24}=\dfrac{21}{8}$

<u>5 step:</u>

$\dfrac{9}{4}+32-\dfrac{21}{8}+1.65=(32+1.65)+\left(\dfrac{9}{4}-\dfrac{21}{8}\right)=33.65+\dfrac{9\cdot 2-21}{8}=33.65-\dfrac{3}{8}=33.65-0.375=33.275$

6 0

2 years ago

If sqaure root x = 9, then x is between _____. 15 and 20 2 and 3 80 and 90 4 and 5

kolbaska11 [484]

If sqrt x = 9 then x = 9*9 = 81

Answer is between 80 and 90.

3 0

3 years ago

Read 2 more answers

U= a-k-b solve for a

irina [24]

Answer:

a = b + k + u

Step-by-step explanation:

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3 0

3 years ago

A runner was timed at 4 miles per hour. how many feet per minute did they run?

kherson [118]

Answer:

352

Step-by-step explanation:

because miles are 5,280 steps so 5,280 multiplied by 4 as in miles is 21,120 so that divided by 60 as in a minute it will be 352

8 0

3 years ago

Read 2 more answers