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3 years ago

8

Geometry homework!!!

1 answer:

Virty [35]3 years ago

3 0

Answer:

Item 5 is a valid definition because based on the vertical angle theorem vertical angles have equal measure. More precisely, they are congruent. When lines intersect they are only considered to be vertical if they make congruent angles.

Step-by-step explanation:

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This is pretty hard but i really need it correct please help!

Wewaii [24]

I prob think it’s b

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3 years ago

What is 1/7^9 × 1/7^-6

artcher [175]

$\bf \cfrac{1}{7^9}\cdot \cfrac{1}{7^{-6}}\implies \cfrac{1\cdot 1}{7^9\cdot 7^{-6}}\implies \cfrac{1}{7^{9-6}}\implies \cfrac{1}{7^3}\implies \cfrac{1}{343}$

5 0

3 years ago

Which polynomial is a trinomial? a.)1-x b.)1-2x+5x^4 c.)6-2x^3-4x^2+x^5 d.)2p^3-p

gtnhenbr [62]

Answer: the answer is b

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

The manufacturer of an airport baggage scanning machine claims it can handle an average of 560 bags per hour. (a-1) At α = .05 i

ioda

Answer:

The calculated value t = 1.76 < 2.131 at 0.05 level of significance

Null hypothesis is accepted

The manufacturer’s claim is greater than 560 bags per hour

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given sample size 'n' =16

Given the manufacturer of an airport baggage scanning machine claims it can handle an average of 560 bags per hour.

mean of the Population 'μ' = 560

Mean of the sample Χ⁻ = 538

sample standard deviation' S' = 50

<em><u>Null hypothesis</u></em><em>:H₀:μ > 560</em>

<em><u>Alternative Hypothesis</u></em><em>:H₁ : :μ < 560 (left tailed test)</em>

<em>Test statistic</em>

$t = \frac{x^{-}-mean }{\frac{S}{\sqrt{n} } }$

$t = \frac{538-560 }{\frac{50}{\sqrt{16} } } = -1.76$

|t| = |-1.76| = 1.76

<em>Degrees of freedom </em>

<em>γ = n-1 =16-1 =15</em>

$t_{\frac{\alpha }{2} } = t_{\frac{0.05}{2} } =t_{0.025} =2.131$

<em><u>Conclusion</u></em>:-

The calculated value t = 1.76 < 2.131 at 0.05 level of significance

Null hypothesis is accepted

The manufacturer’s claim is greater than 560 bags per hour

6 0

4 years ago

I really need help please

OLEGan [10]

It is d) 1.03(2.93^x)

4 0

3 years ago