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2 years ago

Solve the following system of equations by using the substitution method.

1 answer:

8 0

There appears to be a typing error in the second equation.

Still the answer is (7,10) because it is the only ordered pair that works for the first equation.

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X=7^y how can you rewrite this equation in y = form ?

Anuta_ua [19.1K]

Answer:

y = lnx / ln 7.

Step-by-step explanation:

x = 7^y

Take logarithms of both sides:

ln x = ln 7^y

ln x = y ln 7 ( because ln a^b = b ln a. One of the Laws of Logarithms).

y = lnx / ln 7.

6 0

2 years ago

What type of transformation transforms (a,b) to (-a,b)

Ugo [173]

Sus subsistíais ve. D s s d d s d f

4 0

2 years ago

Two communication mask 2km apart and directly north and south of each other. Ubi 's home is 500 m from one and directly east. Ho

pochemuha

Answer: $2061.55\ m$

Step-by-step explanation:

Given

The two communication mask are 2 km apart

Ubi's home is 500 m east of one of the mask

Suppose its distance from the other's is x

From the figure, we can write

$\Rightarrow x^2=2000^2+500^2\\\Rightarrow x^2=4\times 10^6+25\times 10^4\\\Rightarrow x=2061.55\ m\ \text{or}\ 2.061\ km$

7 0

2 years ago

Find the circumstances of the circle. Use pi = 3.14

Dvinal [7]

Answer:3.14r^2

Step-by-step explanation:

if you are asking circumference then using circumference formula

circumference(c)=pi*r^2

=3.14r^2

5 0

3 years ago

A research analyst for a car rental agency found that the probability distribution function for the age of the rental car (in ye

alexdok [17]

Answer:

10 years

Step-by-step explanation:

Given

Decline from (0,h) to (10,0)

See attachment for graph

Required

Determine the age when height = 0

The function of the graph is represented as: (age, height)

So, we need to read from the graph the corresponding value of age (on the x-axis) when height = 0 (i.e. the y-axis)

From the attached graph;

$age = 10$ when $height = 0$

<em>Hence, the age of the car is 10 years</em>

4 0

2 years ago