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ehidna [41]
3 years ago
7

In the select sections, write down the thing you think it is in brackets

Mathematics
1 answer:
Alex3 years ago
6 0

Answer:

#1: reciprocal

#2: fraction

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tamaranim1 [39]

Answer:

sorry my cumputer is not working

Step-by-step explanation:

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I need help identifying the angle relationships in the table ASAP!!!!
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Angle 4 and 8 are corresponding, 6 and 7 are linear, 1 and 3 are vertical, and 2 and 8 are alternate interior
5 0
3 years ago
Brayden tosses a coin 500 times. Of those 500 times, he observes heads a total of 416 times. Calculations show that the probabil
elena-14-01-66 [18.8K]

Answer: The probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

Step-by-step explanation:

Since we have given that

Number of times a coin tossed = 500

Number of times head occurs = 416

So, our Z-score would be

Z_\alpha =\dfrac{416}{500}=0.832

So, At significance level of 0.01, p-value of Z-score is .202704.

and p-value < 0.01, i.e. 0.202704<0.832.

Hence, the probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

7 0
3 years ago
The mayor of a town has proposed a plan for the annexation of an adjoining community. A political study took a sample of 1600 vo
Arturiano [62]

Answer:

Test statistic = -2.44

There is enough evidence to support the strategist's claim.

Step-by-step explanation:

H0 : p = 0.41

H1 : p < 0.41

pˆ = 0.38

Test statistic :

z=pˆ−p/√p(1−p)/n

Z = (0.38 - 0.41) / √(0.41(1 - 0.41) / 1600

Z = - 0.03 / √0.0001511875

Z = - 0.03 / 0.0122958

Z = - 2.4399

Test statistic = -2.44

The Pvalue :

P(Z < -2.44) = 0.0073436

α - level = 0.02

If Pvalue < α ; Reject H0

0.0073436 < 0.02 ; We reject H0

Since Pvalue < α ; Hence, There is enough evidence to support the strategist's claim.

8 0
3 years ago
Please answer these! Add brackets to make the equations true!
beks73 [17]

<span>(1 + 5 ) x 2 = 12                                                                             1 + [(5 x 2) – 2] = 10 </span>

<span>1 + [5 x (2 – 2)] = 1                                                                      [1 + (5 x 2)] – 2 = 9</span>

<span>8 = 12 – [8 / (4 / 2)]                                                                      11  = 12 – [(8 / 4) / 2]</span>

<span>½ = [(12 – 8 ) / 4]  / 2                                                                   20 = 6 x 4 – 4 x 5 </span>ß----can’t figure it out …sorry

<span>0 = 6  x (4 – 4) x 5                                                                         100 = [(6 x 4) – 4] x 5</span>

<span>24 = [14 –(8 -2)] x 3                                                                     0= (14 –8) – (2 x 3)</span>

<span>12 = [{14 – 8)  - 2] x 3                                                                  12 = 14 – [8  - (2 x 3)]</span>

7 0
3 years ago
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