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morpeh [17]
3 years ago
14

Which of the following is equivalent to (x+3)(4x^2+5)

Mathematics
1 answer:
spin [16.1K]3 years ago
7 0

Answer:

4x^3+12x^2+5x+15

Step-by-step explanation:

Factor out.

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How we make 17/24 smaller
borishaifa [10]

Answer:um you simplify it

Step-by-step explanation:

4 0
3 years ago
A certain car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year
icang [17]

Answer:

b(b/a)^2

Step-by-step explanation:

Given that the value of the car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year and that car was worth a dollars on December 31, 2010 and was worth b dollars on December 31, 2011, then

b = a - (p% × a) = a(1-p%)

b/a = 1 - p%

p% = 1 - b/a = (a-b)/a

Let the worth of the car on December 31, 2012 be c

then

c = b - (b × p%) = b(1-p%)

Let the worth of the car on December 31, 2013 be d

then

d = c - (c × p%)

d = c(1-p%)

d = b(1-p%)(1-p%)

d = b(1-p%)^2

d = b(1- (a-b)/a)^2

d = b((a-a+b)/a)^2

d = b(b/a)^2 = b^3/a^2

The car's worth on December 31, 2013 =  b(b/a)^2 = b^3/a^2

4 0
3 years ago
There are four blood types, and not all are equally likely to be in blood banks. Records in a local blood bank show that, histor
zvonat [6]

Answer:

No, because all the expected frequencies must be higher than 5.

Step-by-step explanation:  

The chi-square test might be performed in those situations in which we need to know if a series of observations adjust or not to a theoretical function, such as the normal, Poisson, or binomial.

The chi-square test does not require the number of files to coincide with the number of columns in the table. It does not establish any restriction about the number of modalities per variable. However, the expected frequencies or counts should not be less than five.

In the exposed example, this unique rule is not accomplished, so the chi-square test can not be performed.  

 

3 0
3 years ago
Determine the possible side lengths of the third side of a triangle with known side lengths of 5 and 8.
andre [41]

Answer:

40

Step-by-step explanation:

8 times 5=40

8 0
3 years ago
Read 2 more answers
HELP!!!
kifflom [539]
Answer is -23

Explaination:

-9z is the same thing as -9 times x, and we need to use the inverse operation to isolate the variable. So we would divide -9 on both sides, -9 divided by -9 is 0 and -207 divided by -9 is 23.
3 0
2 years ago
Read 2 more answers
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