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Marrrta [24]
4 years ago
15

Help pls This question has two parts. For full credit, answer each part. When Jimmy and Shane went fishing, Shane caught 2 more

than three times the number of fish that Jimmy caught. Write an algebraic expression that represents how many fish Shane caught.
Use the expression you wrote above to determine how many fish Shane caught if Jimmy caught 2 fish.
Mathematics
1 answer:
natali 33 [55]4 years ago
6 0
I'm really sorry but I failed this never understood it sorry can't help
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For the matrices below. Find all (real) eigenvalues. <br><br> A= [7 9]<br> [0 9]
Jet001 [13]

Answer:

The answer is "9 and 7".

Step-by-step explanation:

Given:

A=\left[\begin{array}{cc}7&9\\0&9\end{array}\right]

Using formula:

|A-\lambda \cdot I|= 0\\\\

\to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]-\lambda \left[\begin{array}{cc}1&0\\0&1\end{array}\right] |=0\\\\\\ \to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]- \left[\begin{array}{cc}\lambda&0\\0&\lambda\end{array}\right] |=0\\\\\\\to|\left[\begin{array}{cc}7-\lambda &9\\0&9-\lambda\end{array}\right]|=0\\\\\\\to|(7-\lambda)(9-\lambda)|=0\\\\\to (7-\lambda)(9-\lambda)=0\\\\\to 7-\lambda=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9-\lambda=0\\\\

\to \lambda=7 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \lambda=9\\\\

8 0
4 years ago
I need help on knowing whether this is a solvable equation. Along with reasons why. HELP IF YOU CAN :))
leva [86]

To check if x = 9 is the solution, we need to replace every x with 9 and simplify

(3+x)/4 = 3

(3+9)/4 = 3

12/4 = 3

3 = 3

We get the same thing on both sides, so the last equation is a true equation. This means that the first equation is a true equation when x = 9. Therefore, the solution x = 9 is confirmed.

3 0
3 years ago
P = KT/V solve for k
IrinaK [193]

we have

P=\frac{KT}{V}

Solve for K means clear the variable K

so

Multiply both sides by V

PV=V\frac{KT}{V}

PV=KT

Divide both sides by T

PV/T=KT/T

K=PV/T

therefore

<u>the answer is</u>

K=PV/T

3 0
4 years ago
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