Retake on #7 Sorry that I don't do this in the first place

Sally must have at least $200 in her savings account to avoid a

xxMikexx [17]

Answer:

675$

Step-by-step explanation:

got it right

7 0

3 years ago

Write the quadratic function f(x) = x2 - 2x - 8 in factored form.

Ronch [10]

Answer:

Hello,

answer C

Step-by-step explanation:

$f(x)=x^2+2x-8\\\\=x^2-4x+2x-8\\\\=x(x-4)+2(x-4)\\\\=(x-4)(x+2)\\\\Answer\ C$

7 0

3 years ago

This is for trigonometry

Ilya [14]

a) x-intercepts (where it passes through the x-axis) are: 0.05, 0.745, 0.8, 1.45, 1.55, 2.2

The x-intercepts represent when height = 0 and y-intercepts represent when time = 0

b) The graph is positive when height is positive: [0.05, 0.745] U [0.8, 1.45] U [1.55, 2.2]

c) The graph is negative when height is negative: [0, 0.05] U [0.745, 0.8] U [1.45, 1.55] U [2.2, ∞)

d) The average rate of change is the slope (rise/run) between the coordinates when x = 0.75 (y = -5) and when x = 1.125 (y = 1.7).

slope = $\frac{1.7 - (-5)}{1.125 - 0}$ = $\frac{6.7}{1.125}$ = 6

8 0

3 years ago

Write three fractions equivalent to \frac{9}{15}

Aleks [24]

(a) On scaling up by a factor of 2 , the equivalent fraction is 18/30.

(b) On scaling up by a factor of 3 , the equivalent fraction is 27/45.

(c) On scaling down by a factor of 3 , the equivalent fraction is 3/5 .

In the question ,

a fraction 9/15 is given ,

Part(a)

to scale up the fraction by a factor of 2 , we multiply the numerator and denominator by 2 .

On multiplying , we get

9/15 = (9*2)/(15*2) = 18/30 .

Part(c)

to scale up the fraction by a factor of 3 , we multiply the numerator and denominator by 3 .

On multiplying , we get

9/15 = (9*3)/(15*3) = 27/45 .

Part(c)

to scale down the fraction by a factor of 3 , we divide the denominator and numerator by 3 .

On dividing , we get

9/15 = (9/3)/(15/3) = 3/5 .

Therefore , (a) On scaling up by a factor of 2 , the equivalent fraction is 18/30.

(b) On scaling up by a factor of 3 , the equivalent fraction is 27/45.

(c) On scaling down by a factor of 3 , the equivalent fraction is 3/5 .

The given question is incomplete , the complete question is

Write three fractions equivalent to 9/15 .

Scale the numerator and denominator up for the first two and down for the third.

(a) Scale up by: __ Equivalent fraction: __

(b) Scale up by: __ Equivalent fraction: __

(c) Scale down by: __ Equivalent fraction: __

Learn more about Equivalent Fraction here

brainly.com/question/10864405

#SPJ1

7 0

1 year ago

What is the image of the point (-8,3)(−8,3) after a rotation of 270^{\circ}270

mel-nik [20]

Given:

The point is (-8,3).

To find:

The image of the given point after a rotation of 270 degrees counterclockwise about the origin.

Solution:

If a point is rotated 270 degrees counterclockwise about the origin, then the rule of rotation is:

$(x,y)\to (y,-x)$

Using this rule, we get

$(-8,3)\to (3,-(-8))$

$(-8,3)\to (3,8)$

Therefore, the image of the given point after a rotation of 270 degrees counterclockwise about the origin is (3,8).

3 0

3 years ago

Retake on #7Sorry that I don't do this in the first place