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spayn [35]
2 years ago
12

Which is equivalent to 2.3(-2x + 9.1) + 9(3.4x - 8)?

Mathematics
1 answer:
Rainbow [258]2 years ago
4 0
The answer is a I did the math trust me
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The store offers a 20% discount) The discount price of a hat is $18. What Is the regular price? Please give an explanation or sh
Allisa [31]

Answer: $38

Step-by-step explanation:

you have add 20 & 18 which would give you 38

5 0
2 years ago
What number should be added to both sides of the equation to complete the square?
AnnyKZ [126]
I think its 2 cuz i think its 6^2
5 0
3 years ago
What is the maximum number of relative extrema a polynomial function can have?
creativ13 [48]
Relative extrema occur where the derivative is zero (at least for your polynomial function). So taking the derivative we get

<span>20<span>x3</span>−3<span>x2</span>+6=0

</span><span> This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
4 0
3 years ago
For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related samp
Wewaii [24]

Answer:1. uses a related sample - repeated measures

2. . does not use a related sample--a

Step-by-step explanation:

Question 1.

step1  A repeated measure design is a design which measures a given sample repeatedly over a given time using different conditions or related measures.

step 2:In the treatment for compulsive hoarding, Here, measures are taken two times ie before and after treatment on the same 50 hoarders which shows a repeated measure, also the design is a within related sample of the same 50 hoarders to give measurement at different conditions  of treatment for  high and low hoarding scores so the design describes  a related sample - repeated measures

Question 2:

step 1 ; An unrelated sample  occurs when Samples being measured do not depend on each other  

Step 2;  1st Sample for comparison by John are random lonely people  and Second Sample are random non lonely people. so the two samples are independent on each other and will give different  measurement based on quality of sleep.   So the design does not use a related sample

8 0
2 years ago
jeff has $25.he spent $10.81,including tax,to buy a new DVD .he needs to set aside $10 to pay for his lunch next week. if peanut
Basile [38]
$ 25.00-$10.81=14.19.
14.19-0.38=13.81.
13.81-10.00=3.81.
He can buy 10 packages of the peanuts.
8 0
3 years ago
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