3 years ago

How do you tell if the equation 2y=8 is linear; How do you graph it?

1 answer:

3 0

Solve for y and then graph it on a graphing calculator or since it doesn’t have a exponent you know it’s just a line because it would be the like y=4 which is a horizontal line at 4

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Subtract five from three times a number and the result is equal to the number plus five. find the number.

allsm [11]

3(x)-5=x+5
3x=-5+5+x
3x=x
0=x
because 3x=x is basically would make each part into 0 which would end up the same.

6 0

3 years ago

Cd+de=ef+de by the

meriva

Is this chemistry, their are many apps online that do you it automatically for u

3 0

3 years ago

For what value(s) of k is the linear system consistent? (Enter your answers as a comma-separated list.)

AleksAgata [21]

Answer:

Step-by-step explanation:

Given

$6x_1-9x_2=8$

$9x_1+kx_2=-1$

The given system is $AX=B$ can be represented by

$\begin{bmatrix}6 &-9 \\ 9 & k\end{bmatrix}\begin{bmatrix}x_1\\ x_2\end{bmatrix}=\begin{bmatrix}8\\ -1\end{bmatrix}$

The given system is consistent when determinant of A is not equal to zero

$|A|$

$|A|=6k-(-81)=6k+81$

$k\neq \frac{-27}{2}$

i.e. system is consistent for all value of k except $k=\frac{-27}{2}$

$R-\frac{-27}{2}$

4 0

3 years ago

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6. How many 4 digit odd numbers can be formed if no digit can be repeated?

ale4655 [162]

1, 3, 5, 7, 9 are the possible digits

meaning you have 5! possible combinations or 120 combinations

6 0

2 years ago

Suppose corn chips cost 28.5 cents per ounce. If a bag costs $3.75, how many ounces are in the bag of chips? Round to the neares

ki77a [65]

13.16oz are in the bag because $3.75÷$0.285 is 13.16oz

7 0

3 years ago

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