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3 years ago

For what value k the pair of linear equations 4x-3y=9 and 2x+ky=11 has no solution

Mathematics

1 answer:

yarga [219]3 years ago

8 0

Answer: k=-3/2

Step-by-step explanation:

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How would i simplify this expression

algol [13]

Answer:

-5 times-5 times-5

Step-by-step explanation:

4 0

3 years ago

What is the range of the given function? To bill customers for water usage, one city converts the number of gallons used into un

DedPeter [7]

The question is incomplete. The complete question is :

To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by the equation g = 748u, where g is the total number of gallons of water used and u is the number of units. Determine which statements about the relationship are true. Check all that apply.

g is the dependent variable.

u is the dependent variable.

g is the independent variable.

u is the independent variable.

The variables cannot be labeled without a table of values.

The variables cannot be labeled since any value can be selected for either

Solution :

Given equation :

g = 748 u

Here, g = total number of gallons of water used

u = number of units

Customers uses the number of units of water.

The unit of water is independent of the total number of gallons of water used.

So the number of units u is an independent variable.

But the value of gallons of water depends on the number of units that is used.

Therefore, number of gallons of water g is a dependent variable.

Thus, we can say that :

g is dependent variable
u is independent variable

7 0

3 years ago

Jonathan, a college business student wants to study how many pages of notes fellow classmates took during a semester for a finan

Naya [18.7K]

Answer:

I just woke up and broke my right knee

8 0

3 years ago

Choose the definition for the function. please help me

fredd [130]

9514 1404 393

Answer:

Step-by-step explanation:

It is usually sufficient to look at one section of the graph to answer a question like this. Often the best choice is the section that has a solid dot at the end of the curve. Here, that is the right section.

The left end of the right section is at x=-2, so that part of the function is defined for x ≥ -2. The line to the right has a positive slope, so the coefficient of x will be positive.

Only one answer choice has a positive x-coefficient for x ≥ -2.

$\textbf{A. }\begin{cases}-x-2&\text{if }x$

7 0

3 years ago

Read 2 more answers

4. What percent of 20 is 5?

Sladkaya [172]

Answer:

25%

Step-by-step explanation:

5 x 4 = 20 and 4 x 25% is 100%

7 0

3 years ago