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Katen [24]
3 years ago
9

Help with these algebra 2 questions

Mathematics
2 answers:
monitta3 years ago
6 0

Given\;:\sqrt{-18} - \sqrt{-32}

we know that i² = -1

\implies\sqrt{18}i - \sqrt{32}i\\

\implies 3\sqrt{2}i - 4\sqrt{2}i

\implies -i\sqrt{2}

SOVA2 [1]3 years ago
4 0

Answer:

#3 is the answer


Step-by-step explanation:


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In which of the following do you expect the correlation coefficient to be negative?
gavmur [86]

Answer: A????????????

Step-by-step explanation:

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4 0
3 years ago
Write the expression as a single natural logarithm. 3ln3 + 3lnc
WARRIOR [948]
Using the rules of logarithms, you can change it to 

ln(3^{3}) + ln(c^{3}) = 

ln(27c^{3})

This is because when you have a factor in front of a logarithm, that turns into an exponent, and when you add logarithms, you multiply the factors inside of the logarithm.  

So your final answer is D.
5 0
4 years ago
⎧
d1i1m1o1n [39]

<u>Given</u>:

The given expression to find the nth term of the sequence is d(n)=d(n-1) \cdot (-5)

The first term of the sequence is d(1)=8

We need to determine the third term of the sequence.

<u>Second term:</u>

The second term of the sequence can be determined by substituting n = 2 in the nth term of the sequence.

Thus, we have;

d(2)=d(2-1) \cdot (-5)

d(2)=d(1) \cdot (-5)

d(2)=8 \cdot (-5)

d(2)=-40

Thus, the second term of the sequence is -40.

<u>Third term:</u>

The third term of the sequence can be determined by substituting n = 3 in the nth term of the sequence.

Thus, we have;

d(3)=d(3-1) \cdot (-5)

d(3)=-40 \cdot (-5)

d(3)=120

Thus, the third term of the sequence is 120.

7 0
3 years ago
Read 2 more answers
PLEASE HELP!! DUE!!<br> The square pyramid has a volume of 225 cubic inches. What is the value of x?
xeze [42]

Volume of square pyramid=lwh/3=225 in³.

l=w=Xin.

h=x/5in.

x³/15=225

x=15in.

3 0
3 years ago
Read 2 more answers
By what number should I multiply 1 1/4 by to obtain 3/4(fractions)
Reptile [31]
1 1/4x = 3/4
5/4x = 3/4
x = (3/4) / (5/4)
x = 3/4 * 4/5
x = 12/20 which reduces to 3/5

check..
1 1/4 * 3/5 =
5/4 * 3/5 =
15/20 reduces to 3/4 

so u would multiply 1 1/4 by 3/5 to get 3/4
7 0
3 years ago
Read 2 more answers
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