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tatuchka [14]
3 years ago
11

HELPPPPPP!!!!!!!!!!!!!!!

Mathematics
1 answer:
aalyn [17]3 years ago
4 0

Answer:

b

Step-by-step explanation:

try shift cos 3/11 + shift sin 3/11 that's gives 90 °

i hope that was helpful

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True or false: randomization allows each member of the population to have an equal probability of being selected for the sample
tia_tia [17]

Answer:

True

Step-by-step explanation:

Simple random sampling chooses at random members of the population. This allows all members an equal probability of being selected for the sample.

4 0
3 years ago
Only number 3 not number 4
Nezavi [6.7K]

Answer:

<h2>Yes</h2>

Step-by-step explanation:

He did set a record because 7/20 = 0.35. 11.35 < 11.4 seconds.

<em>PLEASE MARK BRAINLEST</em>

3 0
3 years ago
Find AB. Round the answer to the nearest tenth if needed.
Yuliya22 [10]

9514 1404 393

Answer:

  8

Step-by-step explanation:

The product of segment lengths to the near and far circle intersection points is the same for both "secants". AD is a tangent, so the two intersection points are the same point. This gives ...

  AD² = AB·AC

  144 = AB(AB +10)

We can add 25 to complete the square.

  169 = (AB +5)² . . . write as a square

  13 = AB +5 . . . . . . positive square root

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7 0
3 years ago
Their sum is − 1/3 and their difference is 18
Rina8888 [55]

Answer:x=53/6 and y=-55/6

Step-by-step explanation:

Let the first number x

Second number b y

Sum of the numbers x+y=-1/3

x-y=18

Solve simultaneously

Using elimination method

We get

2y=-55/3

y=-55/6

Substitute for y in equation 1

x+55/6=18

x=18-55/6

x=53/6

6 0
3 years ago
A club with nine girls and six boys is choosing two representatives to meet with the other
icang [17]

Answer:

Prob = 0.514

A. independent

Step-by-step explanation:

The probability that the club chooses a girl and then a boy for the representative spots

Total = 15

Boys = 6

Girls = 9

Prob of 2 person, a girl and a boy

=( 9C1*6C1)/(15C2)

= (9*6)/(105)

= 54/105

= 0.514

4 0
4 years ago
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