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4 years ago

Help if your good at maths

Mathematics

2 answers:

Ivanshal [37]4 years ago

7 0

Answer:

129°

Step-by-step explanation:

x and 51° are corresponding angles, therefore their sum is 180°

so x= 180° -51°= 129°

tekilochka [14]4 years ago

4 0

Let's make another angle y

Where y= 51° (corresponding angles )

and x+y= 180°. ( linear pair )

x+51°= 180° (y=51°)

x=180°-51°

x= 129°

So the value of x is 129°

Hope you got your answer !

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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:

Explanation:-

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

Null hypothesis:H₀:μ > 560

Alternative Hypothesis:H₁ : :μ < 560 (left tailed test)

Test statistic

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

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

|t| = |-1.76| = 1.76

Degrees of freedom

γ = n-1 =16-1 =15

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

Conclusion:-

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

A company mailed out 896,988 coupon booklets. The company sent the same number of

Anuta_ua [19.1K]

Answer:

4 and 6

Step-by-step explanation:

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2 years ago

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Amy is 11 ⅚ years old. Camden is 1 ⅓ years younger than amy and Jane is 1 ¼ years younger than Camden How old is Jane

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Answer:

Jane is 9 1/4 years old

Step-by-step explanation:

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3 years ago

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We have,

x+y:x-y=3:2

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And,

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Adding (1) and (2), we get

x+y+x-y=3+2

⇒2x=5

⇒ x =

Put x = in (1), we get

+y=3

⇒ y=3-=

x+y:x-y=

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So, x+y:x-y=3:2.

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3 years ago

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natali 33 [55]

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4 years ago

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