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ehidna [41]
3 years ago
13

Help me I WILL GIVE BRAINLEST

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0

Answer:

OPTION B IS CORRECT COZ DISTANCE OF TWO POINTS ARE ALWAYED SUBTRACTED

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Can someone help me with this please?
GarryVolchara [31]

Answer:

16.49

Step-by-step explanation:

21^2 - 13^2 = 272

square root 272 = 16.49

7 0
2 years ago
How do i find the value of x on this problem?
zaharov [31]

Answer:

x = 7

Step-by-step explanation:

The proportion is

14/6 = 21/(3x - 12)                 Cross Multiply

14*(3x - 12) = 6*21                 Remove the brackets and combine

42x - 168 = 126                     Add 168 to both sides

42x = 126 + 168

42x =  294                           Divide by 42

x = 294/42

x = 7

8 0
3 years ago
Solve x2 + 12 = -11 by completing the square.which is the solution set of the equation
Ivan

Answer:

the answer to the question is -1

6 0
3 years ago
Can someone please help me with this?
dsp73

Answer:

S_{13} = 403

Step-by-step explanation:

the sum to n terms of an arithmetic series is

S_{n} = \frac{n}{2} (a + l) ← a is the first term and l the last term

here a = - 5 and l = 67 , then

S_{13} = \frac{13}{2} (- 5 + 67) = 6.5 × 62 = 403

3 0
2 years ago
If a statistic used to estimate a parameter is such that the mean of its sampling distribution is equal to the actual value of t
zimovet [89]
I think the correct answer from the choices listed above is the third option. <span>If a statistic used to estimate a parameter is such that the mean of its sampling distribution is equal to the actual value of the parameter, then it is a biased estimator. Hope this answers the question.
</span>
6 0
3 years ago
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