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dolphi86 [110]
3 years ago
6

An attic floor is shaped like a triangle with a height of n yd and a base of 6 yd. Which expression represents the area of the f

loor?
1. n + 6

2. 3n

3. 3n/2

4. 6n
Mathematics
1 answer:
Gwar [14]3 years ago
7 0
I think it is 2..... i am not really sure
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Flower bed has the shape of a rectangle 24 ft long and 9 ft wide what is the area in square yards
natali 33 [55]
The answer is 24 square yards
24ft=8yd
9ft=3yd
So 8*3=24 square yard

Hope this helps
6 0
3 years ago
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What are the solution(s) to the quadratic equation 50 – x2 = 0?
Paraphin [41]

Answer:

No real solution

Step-by-step explanation:

There is no perfect squares in 50

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3 years ago
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Suppose that the trace of a 2×2 matrix a is tr(a)=15 and the determinant is det(a)=50. find the eigenvalues of
IrinaK [193]
Recall that the characteristic polynomial of a 2x2 matrix \mathbf A=\begin{bmatrix}a&b\\c&d\end{bmatrix} is

\det(\mathbf A-\lambda\mathbf I)=\begin{vmatrix}a-\lambda&b\\c&d-\lambda\end{vmatrix}=(a-\lambda)(d-\lambda)-bc=\lambda^2-(a+d)\lambda+(ad-bc)

but \det(\mathbf A)=ad-bc and \mathrm{tr}(\mathbf A)=a+d, so the characteristic polynomial for \mathbf A is

\lambda^2-\mathrm{tr}(\mathbf A)\lambda+\det(\mathbf A)

We're given that the trace is 15 and determinant is 50, so the characteristic polynomial for the matrix in question is

\lambda^2-15\lambda+50

and the eigenvalues are those \lambda for which the characteristic polynomial evaluates to 0.

\lambda^2-15\lambda+50=(\lambda-5)(\lambda-10)=0\implies\lambda=5,\lambda=10
5 0
3 years ago
Order the numbers from least to greatest: -7/8, 7/4, -15/2, and -13/16
Svetach [21]
<span>7/4=1.75 
23/12=1.92 
11/6=1.83 
5/3=1.67 
1 5/6= 11/2=0.5 
17/42=0.40 
16/21=0.76 
5/7=0.71 

so least to greatest: 17/42, 1 5/6, 5/7, 16/21, 5/3, 7/4, 11/6, 23/12</span><span>
</span>
4 0
3 years ago
Which algebraic equation best represents the verbal sentence shown?
Korolek [52]
7n + 12= 20 so option C
4 0
3 years ago
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