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3 years ago

10

Morgan started the year with 615 in the Bank Eunice saving $25 per week Kendall started with 975 and is spending $15 per week th

en will they both have the same amount of money in the bank

2 answers:

maw [93]3 years ago

4 0

14.5 weeks answer is 15 weeks

AnnZ [28]3 years ago

3 0

It would take them 36 weeks to have the same amount in their accounts.

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21. Randy owns a computer store. In 1990, he sold 150 monitors. In 2000, he sold 900

lutik1710 [3]

Answer:

$y=75x+150$

Step-by-step explanation:

Let $y$ represent the number of monitors sold.

Given:

$x$ is the number of years since 1990.

So, for the year 1990, $x=0$ .

For the year 2000, 10 years passed. So, $x=10$ .

Now, monitors sold in 1990 are 150. So, at $x=0,y=150$

Monitors sold in 2000 are 900. So, at $x=10,y=900$

Thus, the two points are $(0,150)$ and $(10,900)$ .

The slope of a line with points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

For the points $(0,150)$ and $(10,900)$ , the slope is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\ m=\frac{900-150}{10-0}\\ m=75$

Now, the y-intercept is the point where $x=0$ . So, the point $(0,150)$ has $x$ value as 0.

So, the y-intercept is 150.

Equation of a line in slope-intercept form is given as:

$y=mx+b$

Where, $m$ is the slope and $b$ is the y intercept.

Here, $m=75$ and $b=150$ .

Therefore, the equation that represents the above data is given as:

$y=75x+150$

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3 years ago

How many axes of symmetry has a rhombus

Kitty [74]

Rhombus has 2 axes of symetry (they contain diagonals).

If rhombus is a square then has 4 axes of symetry.

3 0

3 years ago

PLEASE HELP 100 POINTS TO WHO HELPS ME

Misha Larkins [42]

Answer:

1. 13.65, 136.5, 1365

2. 57.14, 5.714, .5714

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Determine the amplitude (A), period (P), and phase shift (PS) of the function f(x)= 3sin(x-4)+9

Tpy6a [65]

ANSWER

D.
$A=3,P=2\pi,PS=(4,9)$

EXPLANATION

The given function is

$f(x) = 3 \sin(x - 4) + 9$

Comparing to the general form of a trigonometric sine function,

$f(x) = A \sin(Bx-C)+D$

$A=3$
The amplitude is absolute value of A

$|A| = |3| = 3$

$B=1$

The period is given by

$p = \frac{2\pi}{ B}$

$p = \frac{2\pi}{ 1} = 2\pi$

$C=4$

is a shift to the right of 4 units.

and

$D=9$

is an upward shift of 9 units

Therefore the phase shift is (4,9).

The correct answer is D

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3 years ago

Expand the Bionomial<br> (x+4)^4

nadezda [96]

(x + 4)^4 = x^4 + 16x^3 + 96x^2 + 256x + 256

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3 years ago