All categories

3 years ago

"solve each system by graphing"

Mathematics

1 answer:

garik1379 [7]3 years ago

3 0

Put them into y=mx+b
y=1/3x -1
y=2/3x-4
Graph them. Where they touch is your answer. No touch? No solution. Same line? Infinite solutions.
Second set: Same thing.
Solution to first set is (9,2)

You might be interested in

6/7 Find the slope of the line.

Feliz [49]

The slope, if you have a graph, is the angle the line is going down so look at this graph:

6 0

3 years ago

Read 2 more answers

A 2000-gallon metal tank to store hazardous materials was bought 15 years ago at cost of $100,000. What will a 5,000-gallon tank

harkovskaia [24]

Answer:

The value is $P_o = \$ 561958.9$

Step-by-step explanation:

From the question we are told that

The capacity of the metal tank is $C = 2000 \ gallon$

The duration usage is $t = 15\ years \ ago$

The cost of 2000-gallon tank 15 years ago is $P = \$100,000$

The capacity of the second tank considered is $C_1 = 5,000$

The power sizing exponent is $e = 0.57$

The initial construction cost index is $u_1 = 180$

The new construction after 15 years cost index is $u_2 =600$

Equation for the power sizing exponent is mathematically represented as

$\frac{P_n}{P} = [\frac{C_1}{C} ]^{e}$

=> Here $P_n$ is the cost of 5,000-gallon tank as at 15 years ago

$P_n = [\frac{5000}{2000} ] ^{0.57} * 100000$

$P_n = \$168587.7$

Equation for the cost index exponent is mathematically represented as

$\frac{P_o}{P_n} = \frac{u_2}{u_1}$

Here $P_o$ is the cost of 5,000-gallon tank today

$\frac{P_o}{168587.7} = \frac{600}{180}$

=> $P_o = \frac{600}{180} * 168587.7$

=> $P_o = \$ 561958.9$

8 0

4 years ago

Hey I need help with please show your work <br><br> Thank you.

cupoosta [38]

Not my work but I did give you the answer, have a nice day!

6 0

2 years ago

Read 2 more answers

F(x)=-x2+1 what’s f(2) ?

crimeas [40]

Answer:

f(2)= 5

Step-by-step explanation:

Given f(x) = -x² + 1

f(2) = -2² + 1 = 4 + 1 = 5

f(2) means the value of x = 2

Hence we substitute the value of X into f(x) = -x² + 1

5 0

3 years ago

How does f(x) = 3x change over the interval x = 4 to x = 5

Lorico [155]

Answer:

Step-by-step explanation:

average rate of change=

f(b)-f(a)/(b-a)

3(5)-3(4)/(5-4)=3

8 0

3 years ago