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alekssr [168]
3 years ago
12

I REALLY need help. I don't understand this at all and I need to pass. I suck at geometry.

Mathematics
2 answers:
Lisa [10]3 years ago
8 0
Answer: A=27\pi
ser-zykov [4K]3 years ago
3 0
Either as aforementioned above, or use \bf \textit{Area of a Ring}\\\\
A=\pi (R^2-r^2)\qquad 
\begin{cases}
R=\textit{longer radius}\\
r=\textit{shorter radius}
\end{cases}
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What is the completely factored from of 9x2+24x+16
dezoksy [38]

Answer:

(3x+4)(3x+4) is factor of given expression.

B is correct.

Step-by-step explanation:

We are given an expression 9x^2+24x+16

Formula: a^2+2ab+b^2=(a+b)^2

First we write each term as perfect square as formula.

\Rightarrow 9x^2+24x+16

\Rightarrow (3x)^2+2\cdot 3x\cdot 4+4^2

Using formula , a=3x and b=4

\therefore (3x)^2+2\cdot 3x\cdot 4+4^2=(3x+4)^2

Now we write same number two times.

Hence, (3x+4)(3x+4) is factor of given expression.

3 0
3 years ago
5 more than 3 times a number w
Mila [183]
3 times w+5

3xW+5 ......
5 0
3 years ago
Which is the inverse of this matrix? A. B. C. D. E. The matrix is noninvertible.
kvasek [131]

Answer:

A.

-19 9 7

[15 -7 6 ]

-2  1  1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A. Slope is 3.5, and (-3, 2) is on the line.
Shkiper50 [21]

Answer:

b = 12.5

Step-by-step explanation:

2=3.5(-3)+b

2=-10.5+b (you add 10.5 on both sides)

b= 12.5

6 0
3 years ago
What is the base 5 representation of the number 465^8
andreev551 [17]

Answer  

Option C : 2214(5)

Solution


The given number is 465 in base 8. To convert this number to base 5,we need to convert this number to base 10, then only we can compute the number in base 5


Step1 : Convert 465 to the base 8 to base 10


4 x 82=256


6 x 81=48


5 x 80=5


Adding 256 + 48+ 5 = 309(10)


Step2 : Convert 309(10) to base 5  

5 | 309  

5 | 61 |4


5 | 12 | 1


5 | 2  | 2


5 | 0  | 2



Therefore Answer = 2214(5 )

4 0
4 years ago
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