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Sunny_sXe [5.5K]
3 years ago
13

Which expression is equivalent to 8(2y+18+3y)

Mathematics
1 answer:
Alja [10]3 years ago
6 0
Using distributive property 16y+144+24y could be one :) or: 40y+144
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Please Help!
Artist 52 [7]
X<4 hope this helped dude
5 0
3 years ago
n automobile manufacturer claims that its van has a 37.4 miles/gallon (MPG) rating. An independent testing firm has been contrac
JulsSmile [24]

Answer:

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

Step-by-step explanation:

We will develop a Hypothesis Test ( a 2 tail test since the independent testing firm is interested in finding out  if there is an incorrect MPG rating from the manufacturer

Test Hypothesis :

Null hypothesis                             H₀            μ    =    μ₀

Alternative Hypothesis                Hₐ             μ    ≠    μ₀

Significance Level   α  = 0,05    α/2  =  0,025

z(c) for α/2   from z-table      z(c)  = - 1, 96   and by symmetry  z(c) = 1,96

Calculating  z(s)

z(s) =  ( μ  -  μ₀ ) / σ /√n

z(s) = ( 37,8 - 37,4 ) / 2,3 /√280

z(s) = 0,4 * 16,73 / 2,3

z(s) = 2,90

Comparison between z(c)  and  z(s)

z(s) > z(c)       2,90 > 1,96

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

8 0
2 years ago
The cost of three tickets to a movie is at least $20. Select an inequality that represents the cost x (in dollars) of each ticke
SVETLANKA909090 [29]

Answer:

x\geq \$6.67

Step-by-step explanation:

Let

x------> the cost of each ticket

we know that

3x\geq 20 ----> inequality that represent the situation

solve for x

Divide by 3 both sides

x\geq 20/3

x\geq \$6.67

5 0
3 years ago
Michael buys a computer that is on sale for 10% off the original price. The original price is $38 more than the sale price. What
Alexeev081 [22]

Answer:

380

Step-by-step explanation:

10%->38

100%-> 38÷10×100=380

6 0
2 years ago
Can someone please help me with this? ^^"
meriva

Answer:

Not issue discussed plz full page

7 0
3 years ago
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