Ask question

Ask question

All categories

Zielflug [23.3K]

3 years ago

15

Help!!!!!!!!!! Please!!!!!!!

1 answer:

alukav5142 [94]3 years ago

3 0

Answer:

Collin mistake is step 1

correct answer $\frac{3x - 3}{x^{2} -3x}$

Step-by-step explanation:

You might be interested in

Amanda is selling cupcakes to raise money for charity. On the first day, she sells 12 cupcakes for a total of $64.68. On the sec

shusha [124]

Answer:

(B) is the best estimate because the exact answer would be 167.09

Step-by-step explanation:

BRAINLIEST PLEASE!

5 0

4 years ago

What transformation maps quadrilateral EFGH to quadrilateral QRSP?

sashaice [31]

The markings indicate the figures are congruent. The orientation of both figures is clockwise, so no reflection is involved. The direction of QR appears to be 90° counterclockwise from the direction of EF, It appears as though the center of rotation is somewhere in the triangle EGS.

The transformation appears to be a 90° CCW rotation.

6 0

3 years ago

Read 2 more answers

A jumping spider's movement is modeled by a parabola. The spider makes a single jump from the origin and reaches a maximum heigh

aleksklad [387]

The spider's movement is an illustration of a parabola.

The equation of a parabola is: $\mathbf{y = -\frac{1}{160}(x - 40) + 10}$
The focus of a parabola is: (40,-30)
The axis of symmetry is: $\mathbf{x = 40}$
The directrix is: $\mathbf{y = 50}$

<u>(a) The equation</u>

The spider passes through the origin.

So, we have:

$\mathbf{(x,y) = (0,0)}$

The spider jumps to a maximum height of 10mm, midway 80mm.

So, the vertex is:

$\mathbf{(h,k) = (40,10)}$

The equation of a parabola is:

$\mathbf{y = a(x - h)^2 + k}$

So, we have:

$\mathbf{0 = a(0 - 40)^2 + 10}$

Subtract 10 from both sides

$\mathbf{a(0 - 40)^2 =- 10}$

$\mathbf{1600a =- 10}$

Solve for a

$\mathbf{a =- \frac{1}{160}}$

Substitute $\mathbf{a =- \frac{1}{160}}$ and $\mathbf{(h,k) = (40,10)}$ in $\mathbf{(h,k) = (40,10)}$

$\mathbf{y = -\frac{1}{160}(x - 40) + 10}$

<u>(b) The focus, directrix and the axis of symmetry</u>

The focus of a parabola is:

$\mathbf{Focus= (h, k + p)}$

Where:

$\mathbf{p = \frac{1}{4a}}$

So, we have:

$\mathbf{p = \frac{1}{4 \times -1/160}}$

$\mathbf{p = -\frac{160}{4}}$

$\mathbf{p = -40}$

So, we have:

$\mathbf{Focus = (40,10-40)}$

$\mathbf{Focus = (40,-30)}$

The axis of symmetry is:

$\mathbf{x = h}$

So, we have:

$\mathbf{x = 40}$

The directrix is:

$\mathbf{y = k - p}$

$\mathbf{y = 10 + 40}$

$\mathbf{y = 50}$

Read more about parabolas at:

brainly.com/question/25237745

4 0

3 years ago

The ratio of the number of boys to the number of girls in a school is 5 : 7. If there are 600 students in the school, how many a

enot [183]

Answer:

350 of the students are girls.

Step-by-step explanation:

5+7 = 12

600/12 = 50

50 x 7 = 350

4 0

3 years ago

Fill in the blanks below regarding the end behavior of g(x) = -3x - 1. (3 pts each) On the left, the graph On the right, the gra

OLEGan [10]

Step-by-step explanation:

<u>Step 1: Determine the end behavior</u>

The <em>left side </em>of the graph goes to positive infinity in the y direction but negative infinity in the x direction.

$x$ → -∞

$f(x)$ → ∞

The <em>right side</em> of the graph goes to negative infinity in the y direction but positivie infinity in the x direction.

$x$ → ∞

$f(x)$ → -∞

4 0

2 years ago