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Andrej [43]
3 years ago
10

20 points answer if you know the answer!!!

Mathematics
2 answers:
ivolga24 [154]3 years ago
8 0
Pretty sure its D. you need to divide 60.5 by 69 
Sergio [31]3 years ago
4 0
I believe that answer a is the correct answer.
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The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge length find the volume of the right
evablogger [386]

Answer:

try base time height as that is the way to find the volume and then whatever measurements it is so if it is meters then divide from 100 etc..

Step-by-step explanation:

5 0
3 years ago
Find an m > 0 such that the the equation x^4−(3m+2)x^2+m^2=0 has four real solutions that form an arithmetic sequence.
Aleonysh [2.5K]

Answer:

The value of m is 6.

Step-by-step explanation:

Here, the given equation,

x^4-(3m+2)x^2+m^2=0

x^4+0x^3-(3m+2)x^2+0x+m^2=0

Let the roots of the equation are a-3b, a-b, a+b and a + 3b, ( they must be form an AP )

Thus, we can write,

a-3b+a-b+a+b+a+3b=\frac{\text{coefficient of }x^3}{\text{coefficient of }x^4}

=\frac{0}{1}=0

\implies a=0----(1)

(-3b)(-b)+(-b)(b)+(b)(3b)+(3b)(-3b)+(-b)(3b)+(-3b)(b)=\frac{\text{coefficient of }x^2}{\text{coefficient of }x^4}}

=\frac{-3m-2}{1}

3b^2-b^2+3b^2-9b^2-3b^2-3b^2=-3m-2

-10b^2=-3m-2

\implies b^2=\frac{3m+2}{10}-----(2)

(-3b)(-b)(b)(3b)=\frac{\text{Constant term}}{\text{coefficient of}x^4}= m^2

9b^4=m^2

9(\frac{3m+2}{10})^2=m^2

9(\frac{9m^2+4+12m}{100})=m^2

81m^2+36+108m=100m^2

-19m^2+108m+36=0

19m^2-108m-36=0

19m^2-114m+6m-36=0

19m(m-6)+6(m-6)=0

(19m+6)(m-6)=0

\implies m=-\frac{6}{19}\text{ or }m=6

But m > 0,

Hence, the value of m is 6.

4 0
3 years ago
A girl gave her cousin $2.15 in nicels and dimes . Altogether, she gave her cousin 28 coins . How many of them were dimes? How m
mart [117]

Answer: 15 dimes and 13 nickels

Step-by-step explanation:

7 0
3 years ago
What is the percent of decrease of 90 to 72
vodomira [7]
You lose 20%.
 
if it were going up to 72 to 90 it would be a 25% increase
4 0
3 years ago
Read 2 more answers
Deanna was solving the following equation, 5(x + 2) - 4 = 16.
zaharov [31]

Answer:

Add 4 to each side

Step-by-step explanation:

7 0
3 years ago
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