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3 years ago

HELP PLSSS I BEG UUUU

Mathematics

2 answers:

kati45 [8]3 years ago

5 0

It is the first one

asambeis [7]3 years ago

3 0

Answer:

You are correct, it is the first one.

Step-by-step explanation:

Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

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Use scalar multiplication to determine the coordinates of the vertices of the dilated figure. Then graph the pre-image and the i

Luba_88 [7]

Answer:

The coordinates of the vertices of the dilated figure are:

A' is (-2 , 4), B' is (4 , 8), C' is (4 , -2), D' is (-2 , -6) ⇒ the answer is (d)

Step-by-step explanation:

* Lets study the matrix of the dilation

- If we dilate any point by scale factor k we multiply the

coordinates of the point by k

- The matrix of the dilation by scale factor k is

$\left[\begin{array}{ccc}k&0\\0&k\end{array}\right]$

* Now lets solve the problem

- We will multiply the matrix of dilation by the matrix of the

vertices of the quadrilateral

- The dimension of the matrix of the dilation is 2×2 and the

dimension of the matrix of the vertices of the quadrilateral

is 2×4 then the dimension of the matrix of the image of the

quadrilateral is 2×4

∵ The scale factor is 2

∴ The matrix of dilation is $\left[\begin{array}{cc}2&0\\0&2\end{array}\right]$

∵ The matrix of the vertices of the quadrilateral is

$\left[\begin{array}{cccc}-1&2&2&-1\\2&4&-1&-3\end{array}\right]$

∴ The image of the quadrilateral is :

$\left[\begin{array}{cc}2&0\\0&2\end{array}\right]\left[\begin{array}{cccc}-1&2&2&-1\\2&4&-1&-3\end{array}\right]=$

$\left[\begin{array}{cccc}(2)(-1)+(0)(2)&(2)(2)+(0)(4)&(2)(2)+(0)(-1)&(2)(-1)+(0)(-3)\\(0)(-1)+(2)(2)&(0)(2)+(2)(4)&(0)(2)+(2)(-1)&(0)(-1)+(2)(-3)\end{array}\right]=$

$\left[\begin{array}{cccc}-2&4&4&-2\\4&8&-2&-6\end{array}\right]$

∴ The image of point A' is (-2 , 4)

∴ The image of point B' is (4 , 8)

∴ The image of point C' is (4 , -2)

∴ The image of point D' is (-2 , -6)

* The right answer is figure (d)

3 0

3 years ago

Can you help me its in a photo

nordsb [41]

629 x 82 will be 51578

4 0

3 years ago

Read 2 more answers

A combination lock has three wheels, each numbered 0-9, and the combination is set at 234. Is the combination a system of indepe

Vika [28.1K]

Answer:

Independent event

Step-by-step explanation:

Independent event is defined as events that will not influence each other. In this question, the combination lock has three separate wheels. Each wheel has one key out of 10 possible numbers. The key of the first wheel will not influence the number pool of second and third wheels. All of the wheels will have 10 possible numbers regardless. Therefore, the combined number is an independent event.

3 0

3 years ago

Y=-4(x-2)2+4<br> what is the x intercept

valentina_108 [34]

<h2>Solving for the x-intercepts of a Parabola given the Equation</h2><h3>Answer:</h3>

$x = 3$ and $x = 1$

<h3>Step-by-step explanation:</h3>

$x$ -intercepts are just the values $x$ when $y = 0$ .

Solving for $x$ :

$0 = -4(x -2)^2 +4 \\ -4(x -2)^2 +4 = 0 \\ -4(x -2)^2 = -4 \\ 4(x -2)^2 = 4 \\ (x-2)^2 = \frac{4}{4} \\ (x -2)^2 = 1 \\ x-2 = \pm \sqrt1 \\ x -2 = \pm 1 \\ x = \pm 1 +2$

Solving for the Positive Square Root:

$x = 1 +2 \\ x = 3$

Solving for the Negative Square Root:

$x = -1 +2 \\ x = 1$

3 0

3 years ago

If the zeros of a quadratic equation are -3<br> and 5, what would be the x-intercepts?

Whitepunk [10]

Answer:

To find the x-intercepts of a quadratic equation, let y = 0. Write down the new equation ax squared + bx + c = 0 and the quadratic formula that gives the solution as x = -b plus or minus the square root of (b squared - 4ac), all divided by 2a.

Step-by-step explanation:

Hope this helps.

6 0

2 years ago

Read 2 more answers