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vichka [17]
3 years ago
11

4(n + 9) = -4 = ? . -2(3n - 5) = 34

Mathematics
2 answers:
zmey [24]3 years ago
8 0
The answers are
n = -10
n = -4
prohojiy [21]3 years ago
8 0

Answer:

1. n=-10 2.n=-4

Step-by-step explanation:

1. Step 1: Simplify both sides of the equation.

4(n+9)=−4

(4)(n)+(4)(9)=−4(Distribute)

4n+36=−4

Step 2: Subtract 36 from both sides.

4n+36−36=−4−36

4n=−40

Step 3: Divide both sides by 4.

\frac{4n}{4} =\frac{-40}{4}

n=-10

Step 1: Simplify both sides of the equation.

−2(3n−5)=34

(−2)(3n)+(−2)(−5)=34(Distribute)

−6n+10=34

Step 2: Subtract 10 from both sides.

−6n+10−10=34−10

−6n=24

Step 3: Divide both sides by -6.

\frac{-6n}{6}= \frac{24}{-6}

n=-4

Hope this helps :)

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Step-by-step explanation:

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a cook has 2 2/3 cup of flour. a recipe calls for 2 3/4 cups of flour. does the cook have enough flour? if not, how much more fl
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4 years ago
The meat department of a local supermarket packages ground beef using meat trays of two sizes: 1 designed to hold 1 lb of meet a
r-ruslan [8.4K]

Answer:

c) 0.932

99% confidence interval for average weights of all packages sold in small meat trays.

(0.932 ,1.071)

Step-by-step explanation:

Explanation:-

Given random sample of 35 packages in small meat trays produced weight with an average of 1.01 lbs. and standard deviation  of 0.18 lbs.

size of the sample 'n' = 35

mean of the sample x⁻= 1.01lbs

standard deviation of the sample 'S' = 0.18lbs

<u>The 99% confidence intervals are given by</u>

(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } , x^{-} +t_{\alpha } \frac{S}{\sqrt{n} } )

The degrees of freedom γ=n-1 =35-1=34

tₐ =  2.0322

99% confidence interval for average weights of all packages sold in small meat trays

(1.01 - 2.0322 \frac{0.18}{\sqrt{35} } , 1.01+2.0322 \frac{0.18}{\sqrt{35} } )

( 1.01 - 0.06183 , 1.01+0.06183)

(0.932 ,1.071)

<u>Final answer</u>:-

<u>99% confidence interval for average weights of all packages sold in small meat trays.</u>

<u>(0.932 ,1.071)</u>

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Answer:

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Step-by-step explanation:

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3(y - 1) = 3[2/3(x - 6)]

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There are in infinite amount of points on a line.  I do not know if they give you a picture or if you are just to create your own.  I am going to create a point that have x = 0.  I get to pick the point.  I could pick any number.  0 is just usually really easy.  So, if I substitute 0 for x I will get:

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Now that I think about it, I do not think that I would start out clearing the fraction even though it works.  I think that I would do it like this"

y - 1 = 2/3(x - 6)  Distribute the 2/3 through (x - 4) to get

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y - 1 = 2/3x -4   now add 1 to both sides.

y = 2/3x -3

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Answer:

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If Yuri lives 24 miles SOUTH of the library, the "b" side of the triangle should be 24, with the Library at the top and Yuri at the bottom left, which is the west end of the base. The base "a" of the triangle should extend 10 to the right (East in compas directions) forming the right angle. Carla lives at the sharp southeast corner of the triangle, and the Hypotenuse "c"  from her house to the Library is the distance we have to figure.

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