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2 years ago

Find two numbers whose sum is 1 and whose difference is 7.

Mathematics

2 answers:

Sphinxa [80]2 years ago

7 0

Answer:

-3 and 4

Step-by-step explanation:

4-(-3) = 7

4+(-3) = 1

Mrac [35]2 years ago

3 0

68-61 =7

but 7-6 =1

Step-by-step explanation:

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Can you form an equation I can use to figure out how many 600 dollar checks it would take me to pay for a 13,100 bill and how lo

kari74 [83]

Answer:

${x = < \sqrt{ \geqslant \frac{6x03 \geqslant 660}{?} } }^{2}$

7 0

2 years ago

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

3 years ago

Which of the following expressions match the translation “nineteen more than the product of 4 and a number”? 4n + 19 4(n + 19) 1

sukhopar [10]

Answer:

4n+19

Step-by-step explanation:

The product of 4 and a number=4n

nineteen more than=+19

therefore the equation is 4n+19

Hope this helps!

7 0

2 years ago

Read 2 more answers

Please help and show work please and thank you ! :) I’ll give brainliest

lina2011 [118]

Answer:

216 yds

Step-by-step explanation:

6 0

2 years ago

What is the 75th term of the arithmetic sequence -1, 5, 11

lana [24]

Answer:

75th term = 443

Step-by-step explanation:

$a_{n}=a_{1}+d(n-1) \\a_{n}=-1+6(n-1) \\a_{75}=-1+6(75-1) \\a_{75}=-1+6(74)\\a_{75}=-1+444\\a_{75}=443 \\\\$

7 0

3 years ago