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3 years ago

9d-2d+4d=32 Need help

Mathematics

1 answer:

Luden [163]3 years ago

8 0

Answer:

=2.90d

Step-by-step explanation:

i think is that hope IT help

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Ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

katovenus [111]

Answer: Ggggggggggggggggggggggggggggggggggggg

Step-by-step explanation: noice. Ggggggggggggggggggggg

4 0

3 years ago

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What is the slope of a line perpendicular to the line y= -4x + 16

Valentin [98]

Answer:

1/4

Step-by-step explanation:

The opposite inverse of a slope is the perpendicular slope.

y = -4x + 16

-4 is the regular slope, the opposite inverse is 1/4

$y = \frac{1}{4} x + 16$

8 0

3 years ago

A professor thinks that the students in her statistics class this term are less creative than most students at this university.

choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

$\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1$

1. Null and alternative hypothesis

$H_{0}:\mu=35\\H_{1}:\mu$

2. Significance level

$\alpha=0.1\\1-\alpha=0.99$

Freedom degrees is given by:

$v=n-1\\v=23-1=22$

For a sgnificance level of 0,01 and 22 freedom degrees, t-student distribution value is:

$t_{0.01;23}=-2. 5083$

3. Test statistic

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

$t=\frac{33-35}{\frac{5}{\sqrt{23} } }$

$t=-1,918$

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if $t$

$-1.918>-2.5083$

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0

3 years ago

Please evaluate this for me

dolphi86 [110]

so, 2 raised to what power would make 32?? it would be 5 because 2^5=32

2^1=1

2^2=4

2^3=16

2^5=32

7 0

3 years ago

Are the ratios 2:1 and 4:2 equivalent?

hodyreva [135]

Answer:

yes

Step-by-step explanation:

they are equivalent because 1 is half of 2 and 2 is half of 4

8 0

3 years ago

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