3 years ago

Please help me with this

Mathematics

1 answer:

STALIN [3.7K]3 years ago

4 0

Answer: none of these

Step-by-step explanation:

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39.8 hg = how many grams ?

babymother [125]

Answer:3980

Step-by-step explanation:

We know hg here refers to hectogram and its conversion to gram is given by

1 hectogram is equal to 100 gm

therefore 39.8 hg simply means 3980 gm

Thus 39.8hg=3980 gm

8 0

4 years ago

I don’t know how to solve this question. Please help

inn [45]

Hi this isn’t an answer but try using photo math

7 0

4 years ago

Dullco Manufacturing claims that its alkaline batteries last at least 40 hours on average in a certain type of portable CD playe

algol13

Answer:

The value is $p- value = 0.041815$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 40 \ hours$

The sample size is $n = 18$

The sample mean is $\= x = 37.8 \ hours$

The standard deviation is $\sigma = 5.4\ hours$

The null hypothesis is $H_o : \mu = \ge 40$

The alternative hypothesis is $H_a : \mu < 40 \ hour s$

Generally the test statistic is mathematically evaluated as

$t= \frac{\= x - \mu}{ \frac{\sigma}{ \sqrt{n} } }$

$t= \frac{37.8 - 40}{ \frac{5.4}{ \sqrt{18 } }$

$t= -1.73$

From the z - table the p-value is obtained and the value is

$p- value = P(Z < -1.73)$

$p- value = 0.041815$

3 0

3 years ago

8.35 < 3x +18.75<br> Pls help

zzz [600]

Step-by-step explanation:

8.35 < 3x + 18.75

3x + 18.75 > 8.35

3x > 8.35 - 18.75

3x > -10.4

x > -3.47

5 0

3 years ago

If the probability that it will rain tomorrow is 0.39 what is the probability that it will not rain tomorrow

lapo4ka [179]

Answer:

0.61

Step-by-step explanation:

probability is out of 100 so if you do 100-39

you get 61

5 0

4 years ago