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3 years ago

WORTH 50 POINTS NEED HELP FAST

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

First a reflection in the y-axis

Then a translation of 3 units upwards.

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What was the amount of the initial deposit that started this<br> savings account?

Nataly_w [17]

Answer:

Step-by-step explanation:

12) The amount of the initial deposit is $1000

13) the slope is (y2 - y1)/(x2 - x1)

Slope = (4000 - 3000)/(6 - 4)

Slope = 1000/2 = 500

The y intercept is the value of y when x is zero. Therefore,

y intercept = 1000.

14) The equation of a straight line represented in the slope intercept form is

y = mx + c

Where

m represents slope

c represents intercept

Therefore the equation is

y = 500x + 1000

15) The slope represents rate of change in the amount saved with respect to time in months.

4 0

4 years ago

Question 1

slamgirl [31]

Answer:

i) $500 at 5% simple interest for two years. Interest = 550 - 500 = $50

ii) $500 at 3% compounded monthly for 2 years.

Interest = 530.88 - 500 = $30.88

Step-by-step explanation:

i) $500 at 5% simple interest for two years.

Initial amount, P = $ 500

Rate of interest, r = 0.05

Time in years, t = 2

Therefore Final amount A = P(1 + rt) = 500(1 + (0.05 $\times$ 2) ) = $550

Therefore Interest = 550 - 500 = $50

ii) $500 at 3% compounded monthly for 2 years

Initial or Principal Amount, P = $500

Rate of interest, r =0.03

number of conversions, m = 12

Time in years, t = 3

Therefore final amount, $A = P(1 + \frac{r}{m}) ^{mt} = 500( 1 + \frac{0.03}{12} )^{(12\times2)} = 500( 1 + \frac{0.03}{12} )^{24}$ = $530.88

Therefore Interest = 530.88 - 500 = $30.88

6 0

3 years ago

If x^2=20 what is the value of x will give brainliest for answer

Schach [20]

Answer:

x² - 20 = 0

Using the quadratic formula

$x = \frac{ - b± \sqrt{( {b})^{2} - 4ac } }{2a}$

a = 1 b = 0 c = -20

So we have

$x = \frac{ - 0 ± \sqrt{ {0}^{2} - 4(1)( -20)} }{2(1)} \\ \\ x = \frac{± \sqrt{80} }{2} \\ \\ x = \frac{±4 \sqrt{5} }{2} \\ \\ \\ x = ±2 \sqrt{5} \\ \\ \\ x = 2 \sqrt{5} \: \: \: or \: \: \: x = - 2 \sqrt{5}$

Hope this helps you.

8 0

3 years ago

What is an identity element of addition

timama [110]

Answer:

Step-by-step explanation:

0 is the identity element under addition for the real numbers.

3 0

3 years ago

Twice the quotient of b and 24

Blizzard [7]

Equation: B/24 · 2. I hope that helps!

7 0

3 years ago