3 years ago

Round your answer to the nearest hundredth. ? с А 3 70° B

Mathematics

1 answer:

Paladinen [302]3 years ago

4 0

I'd suggest getting a Texas Instruments TI-84 plus calculator or use des mos .com scientific

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Consider the matrix

DaniilM [7]

$\mathbf A=\begin{bmatrix}4&0&0\\1&3&0\\-4&5&-1\end{bmatrix}$

The characteristic polynomial is given by $\det(\mathbf A-\lambda\mathbf I)$ :

$\mathbf A-\lambda\mathbf I=\begin{bmatrix}4-\lambda&0&0\\1&3-\lambda&0\\-4&5&-1-\lambda\end{bmatrix}$

Compute the determinant by Laplace expansion along the first row:

$\det(\mathbf A-\lambda\mathbf I)=(4-\lambda)\begin{vmatrix}3-\lambda&0\\5&-1-\lambda\end{vmatrix}=(4-\lambda)(3-\lambda)(-1-\lambda)$

$\implies\det(\mathbf A-\lambda\mathbf I)=-\lambda^3+6\lambda^2-5\lambda-12$

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3 years ago

Surface Area 7th Grade Math

Shkiper50 [21]

Answer:

108

Step-by-step explanation:

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3 years ago

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bro I promise if someone reports this for no reason or send a malware link that i can scan ima hack u

ratelena [41]

Answer:

"hack you" lol answer is 22in

Step-by-step explanation:

the base of the pyramid is 100in^2

so the rest of the surface area is 440

formula for a triangle area is A=1/2bh

1 of the triangles is 110 440/4

110=1/2*10*h

110=5*h

h=22

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3 years ago

A plumber has a 40-foot piece of PVC pipe. How many 11/5 foot pieces can be cut from the 40 foot piece?

Lena [83]

Hello,

40 ÷ 11/5 = 40 × 5 / 11 ≈ 18

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4 years ago

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9-x/5=3 solve the folloswing equation for x

Debora [2.8K]

Answer:

x = 30

Step-by-step explanation:

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