3 years ago

WILL GIVE BRAINLIEST! the sum of seven consecutive integers is zero. what is the value of the smallest integer?

Mathematics

1 answer:

kati45 [8]3 years ago

7 0

Answer:

-3

Step-by-step explanation:

x + (x+1) +(x+2)+(x+3)+(x+4)+(x+5)+(x+6) = 0

7x + 21 = 0

x = -3

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A researcher would like to estimate p, the proportion of U.S. adults who support recognizing civil unions between gay or lesbian

SOVA2 [1]

Answer:

(b) 4,445

Step-by-step explanation:

If the researcher would like to be 95% sure that the obtained sample proportion would be within 1.5% of p (the proportion in the entire population of U.S. adults), what sample size should be used?

Given a=0.05, |Z(0.025)|=1.96 (check standard normal table)

So n=(Z/E)^2*p*(1-p)

=(1.96/0.015)^2*0.5*0.5

=4268.444

Take n=4269

Answer:(b) 4,445

3 0

2 years ago

Proof triangles

Klio2033 [76]

No, two sides the same is not enough.
You need more proof.

Side, angle, side. (SAS).
AD = DC
Angle ADB = Angle CDB
BD = BD

By the SAS property, the two triangles are the same.

I think this is one way to prove it...

Or, similarly...use ASA, (Angle, side, angle).