3 years ago

Fill in the missing reason for the last step.

Mathematics

1 answer:

jek_recluse [69]3 years ago

6 0

Answer:

Division

Step-by-step explanation:

You divided both sides of the inequality by -3. Multiplying/dividing by negative numbers change the sign of the inequality, so you have ">" turned into "<".

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Jack uses a probability simulator to roll a six-sided number cube 100 times and to flip a coin 100 times. The results of the exp

Mandarinka [93]

The experimental probability is the number of specific outcomes divided by the sample size...

P(6)=27/100 (27%)

P(H)=41/100 (41%)

Not sure, but if you meant rolling a 6 AND getting a head then:

P(6 AND H)=(27/100)(41/100)=1107/10000 (11.07%)

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2 years ago

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One of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average

Goshia [24]

Answer: 0.0930

Step-by-step explanation:

As per given , we have

H0: μcoffee = 6

Ha: μcoffee < 6

She finds z = −1.68 with one-sided P-value P = 0.0465.

The P-value for two-tailed test is calculated by :

$2P(Z>|z|)$

For z= -1.68 , we have

$2P(Z>|-1.68|)=2P(Z>1.68)$

$=2(1-P(z\leq1.68))\ \ [\because\ P(Z>z)=1-P(Z\leq z)]$

$=2(1-0.9535213)\ \ \ [\text{ NORM.S.DIST(z, TRUE}]\\\\=2( 0.0464787)=0.0929573\approx0.0930$

Hence, the correct two-sided P-value for z = −1.68 is 0.0930 .

3 0

3 years ago

I need help with this ASAP

Mademuasel [1]

Answer:

It would be y=12x

Step-by-step explanation:

I think

8 0

2 years ago

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If a metal sheet is 1.2mm thick how must be put together to have thickness of 1.44 cm

dedylja [7]

First convert 1.2mm to cm

10mm = 1cm

so 1.2mm = 0.12cm

Then divide 1.44cm by 0.12cm
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so you need 12 sheets to make it 1.44cm

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2 years ago

The quadrilaterals ABCD and JKLM are similar.

Paha777 [63]

Answer: 4.8

Step-by-step explanation:

Corresponding sides of similar figures are proportional, so

$\frac{x}[4}=\frac{6}[5}\\\\x=4\left(\frac{6}{5} \right)=\boxed{4.8}$

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2 years ago