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2 years ago

Solve for x: x squared minus 4 x minus 9 = 29.

2 answers:

3 0

Answer:Use the quadratic formula to find the solutions. Substitute the values a=1 , b=−4 , and c=−38 into the quadratic formula and solve for x .

step by step:

Move 29 29 to the left side of the equation by subtracting it from both sides. Subtract 29 29 from −9 - 9 .

I am Lyosha [343]2 years ago

3 0

X=-2.1 is the correct answer

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Let A (10, 11, 12, 13 and B (a, b, c, d) Let g be a function from A to B defined by f(10, a), (11,a), (12, b), (13,b)) What is t

Irina-Kira [14]

Answer:

d does not have an inverse image

Step-by-step explanation:

From the question we are told that

The first set is A (10, 11, 12, 13 )

The second set is B (a, b, c, d)

The function that from A to B is f(10, a), (11,a), (12, b), (13,b))

Generally for a function defined by (x,y), y is the image of x while x is the inverse image of y

Now considering the function we are given and the value d we see that and inverse image is not defined for d in the function

hence d does not have an inverse image

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3 years ago

Convert the measurement. HELP ME ASAP

alex41 [277]

Answer:

1800 cm

Step-by-step explanation:

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2 years ago

Which inequality is true

yarga [219]

The inequality that is true is 7π > 21

<h3>How to determine the inequality that is true?</h3>

To do this, we simply test the given inequalities (starting from the first)

The first inequality is represented as

7π > 21

Divide both sides of the inequality by 7

So, we have:

7π/7 > 21/7

Evaluate the quotient of 21 and 7

So, we have:

7π/7 > 3

Evaluate the quotient of 7π and 7

So, we have:

π > 3

The above inequality is true.

This is so because π = 3.14 and 3.14 > 3

Hence, the inequality that is true is 7π > 21

Read more about inequality at

brainly.com/question/24372553

#SPJ1

6 0

1 year ago

A= [1, 3; 2, 1], B=[3, 6; -1, 1]. Find AB & BA if possible

steposvetlana [31]

Answer:

$AB\Rightarrow \quad \begin{bmatrix}0 & 9\\ 5 & 13\end{bmatrix}\\BA\Rightarrow \quad \begin{bmatrix}15 & 15\\ 1 & -2\end{bmatrix}$

Step-by-step explanation:

For two matrix P and Q, the product, say PQ is defined when:

The number of columns of P = The number of rows of Q

Since A is a 2×2 matrix and B is also a 2×2 matrix

Thus both AB and BA are possible.

So AB is:

$AB\Rightarrow\begin{bmatrix}1 & 3\\ 2 & 1\end{bmatrix}\begin{bmatrix}3 & 6\\ -1 & 1\end{bmatrix}\\AB\Rightarrow\quad \begin{bmatrix}3\times 1+3\times (-1) & 6\times 1+3\times 1\\3\times 2+1\times (-1) & 6\times 2+1\times 1\end{bmatrix}\\AB\Rightarrow \quad \begin{bmatrix}0 & 9\\ 5 & 13\end{bmatrix}$

BA is:

$BA\Rightarrow\begin{bmatrix}3 & 6\\ -1 & 1\end{bmatrix}\begin{bmatrix}1 & 3\\ 2 & 1\end{bmatrix}\\BA\Rightarrow\quad \begin{bmatrix}3\times 1+6\times 2 & 3\times 3+6\times 1\\(-1)\times 1+1\times 2 & (-1)\times 3+1\times 1\end{bmatrix}\\BA\Rightarrow \quad \begin{bmatrix}15 & 15\\ 1 & -2\end{bmatrix}$

8 0

3 years ago

Are the two lines parallel, perpendicular, or neither?

RideAnS [48]

Graph 1 neither

Graph 2 neither

Graph 3 perpendicular

Graph 4 parallel

5 0

2 years ago