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4 years ago

Please Answer if you can!

2 answers:

8 0

1.
$4500 \times 7\% \\ = 4500 \times \dfrac{7}{100} \\ = 315$
36 months = 3 years
$315 \times 3 = 945$
Answer is B.

2.
$420 + 360 = 780 \\ 780 \times 106\% \\ = 780 \times \dfrac{106}{100} \\ = 826.8$
Answer is B.

3. Answer is C.

4.
$1 + 1 = 2 \\ 2 \times 108\% \\ = 2 \times \frac{108}{100} \\ = 2.16$
Answer is D.

5.
$50 \times 105\% \\ = 50 \times \frac{105}{100} \\ = 52.5$
Answer is A.

Hope this helps. - M

sveticcg [70]4 years ago

6 0

for 1 i got $945.

For 2 i got $826.80.

For 3 i got c.

For 4 i got $2.16.

For 5 i got $52.50

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x2 + y2 − 4x + 12y − 20 = 0 (x − 6)2 + (y − 4)2 = 56 x2 + y2 + 6x − 8y − 10 = 0 (x − 2)2 + (y + 6)2 = 60 3x2 + 3y2 + 12x + 18y −

snow_tiger [21]

For this case, what we must do is fill squares in all the expressions until we find the correct result.
We have then:

x2 + y2 − 4x + 12y − 20 = 0 x2 + y2 − 4x + 12y = 20
x2 − 4x + y2 + 12y = 20
x2 − 4x + (12/2)^2 + y2 + 12y + (-4/2)^2 = 20 + (12/2)^2 + (-4/2)^2
x2 − 4x + (6)^2 + y2 + 12y + (-2)^2 = 20 + (6)^2 + (-2)^2
x2 − 4x + 36 + y2 + 12y + 4 = 20 + 36 + 4
(x − 2)2 + (y + 6)2 = 60

3x2 + 3y2 + 12x + 18y − 15 = 0
x2 + y2 + 4x + 6y − 5 = 0
x2 + y2 + 4x + 6y = 5
x2 + 4x + (4/2)^2 + y2 + 6y + (6/2)^2 = 5 + (4/2)^2 + (6/2)^2
x2 + 4x + (2)^2 + y2 + 6y + (3)^2 = 5 + (2)^2 + (3)^2
x2 + 4x + 4 + y2 + 6y + 9 = 5 + 4 + 9
(x + 2)2 + (y + 3)2 = 18

2x2 + 2y2 − 24x − 16y − 8 = 0
x2 + y2 − 12x − 8y − 4 = 0
x2 + y2 − 12x − 8y = 4
x2 − 12x + (-12/2)^2 + y2 − 8y + (-8/2)^2 = 4 + (-12/2)^2 + (-8/2)^2
x2 − 12x + (-6)^2 + y2 − 8y + (-4)^2 = 4 + (-6)^2 + (-4)^2
x2 − 12x + 36 + y2 − 8y + 16 = 4 + 36 + 16
(x − 6)2 + (y − 4)2 = 56

x2 + y2 + 2x − 12y − 9 = 0
x2 + y2 + 2x - 12y = 9
x2 + 2x + y2 - 12y = 9
x2 + 2x + (2/2)^2 + y2 - 12y + (-12/2)^2 = 9 + (2/2)^2 + (-12/2)^2
x2 + 2x + (1)^2 + y2 - 12y + (-6)^2 = 9 + (1)^2 + (-6)^2
x2 + 2x + 1 + y2 - 12y + 36 = 9 + 1 + 36
(x + 1)2 + (y − 6)2 = 46

7 0

4 years ago

What is the solution set for - 4x + 10 = 5(x + 11)? HELPPPPPPP

Scorpion4ik [409]

Answer:

-5

Step-by-step explanation:

-4x +10 =5(x +11)

-4x +10 =5x +55

-4x - 5x =55 - 10

-9x =45

x=-45 :9

x=-5

7 0

3 years ago

Please help me. I need to find what W is

cluponka [151]

Answer:

Step-by-step explanation:

w+13- $\frac{2w}{3}$ =16

w · $\frac{3}{3}$ - $\frac{2w}{3}$ +13=16

$\frac{w}{3}$ +13=16

$\frac{w}{3}$ =3

w=9

6 0

3 years ago

Solve each equation you must use

n200080 [17]

1) The solution for m² - 5m - 14 = 0 are x=7 and x=-2.

2)The solution for b² - 4b + 4 = 0 is x=2.

Step-by-step explanation:

The general form of quadratic equation is ax²+bx+c = 0

where

a is the coefficient of x².
b is the coefficient of x.
c is the constant term.

To find the roots :

Sum of the roots = b
Product of the roots = c

1) The given quadratic equation is m² - 5m - 14 = 0.

From the above equation, it can be determined that b = -5 and c = -14

The roots are -7 and 2.

Sum of the roots = -7+2 = -5
Product of the roots = -7 $\times$ 2 = -14

The solution is given by (x-7) (x+2) = 0.

Therefore, the solutions are x=7 and x= -2.

2) The given quadratic equation is b² - 4b + 4 = 0.

From the above equation, it can be determined that b = -4 and c = 4

The roots are -2 and -2.

Sum of the roots = -2-2 = -4
Product of the roots = -2 $\times$ -2 = 4

The solution is given by (x-2) (x-2) = 0.

Therefore, the solution is x=2.

5 0

3 years ago

What is the percent increase from 126 points to 48 points

svetoff [14.1K]

48-126=-78
-78/126= -0.619047619
-0.619047619x100=61.9047619%
This can be rounded to 62%

Hope this helps :)

6 0

3 years ago