Jacob did the following calculations, please explain the error if any. (2-3i)2 = (2-3i)(2-3i) = 4-6i-6i+9i2 = 9i2-12i+4

Answer:

Y=0

Step-by-step explanation:

The x axis is the same making the line a horizontal line. A horizontal line has a slope of 0

Answer:

i cant see anything

Step-by-step explanation:

Answer:

h=9/8 or 1.125 but since yo said round it's 1.13

Step-by-step explanation:

Answer:

3.25

Step-by-step explanation:

divide then add 3

Answer:

3 1/4 or 13/4

Step-by-step explanation:

Answer:

Mode and mean

Step-by-step explanation:

The measure of central tendency that can be determined by just looking at the  box plot is : MEDIAN but the other measures of central tendencies. that cannot be determined  accurately by just looking at the box plot . are MODE  and MEAN

This simply because of how a box plot is created ( it makes it easier to determine the median value other than other central tendencies )

Step-by-step explanation:

8)

describe y in terms of x

y=5+x

so now replace y with terms of x

5+x+3x=37

4x=32

x=8

y=13

9)

do the same here

x=y+1

2y+x=19

2y+y+1=19

3y=18

x=6

y=7

Answer: all real numbers

Step-by-step explanation: ur welcome luv

Answer:

Can you put the question please, so we could answer it

Step-by-step explanation:

Answer:

OMG! Thank you mate..... :D

Answer:

????? I am only in first grade

Step-by-step explanation:

???????

Answer:

0.7

Step-by-step explanation:

Answer:

thirty two quarters and three dimes

Given:

The center of the circle is at (0,0).

The circle passes through the point A(4,-3).

To find:

The radius and the equation of the circle.

Solution:

Distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

The radius of the circle is the distance between the points (0,0) and (4,-3).

[tex]r=\sqrt{(4-0)^2+(-3-0)^2}[/tex]

[tex]r=\sqrt{(4)^2+(-3)^2}[/tex]

[tex]r=\sqrt{16+9}[/tex]

[tex]r=\sqrt{25}[/tex]

[tex]r=5[/tex]

So, the radius of the circle is 5 units.

The standard form of a circle is

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where, (h,k) is center of circle and r is the radius.

Putting h=0, k=0, r=5, we get

[tex](x-0)^2+(y-0)^2=5^2[/tex]

[tex]x^2+y^2=25[/tex]

Therefore, the radius of the circle is 5 units and the equation of the circle is [tex]x^2+y^2=25[/tex].

Answer:

{11,60,62} could not represent the sides of a right triangle

Answer:

1/16 is your answer :)

Answer:

The rate of change in the table is 78 students per year

Step-by-step explanation:

Here, we want to get the rate of change of the function

Mathematically, we can get this by using the formula;

m = (y2-y1)/(x2-x1)

(x1,y1) and (x2,y2) are points we are to select from the table

Let us select the point (4,704) and (17,1718) from the table

The slope is thus;

m = (1718-704)/(17-4) = 78 students per year

Answer:

the answer will be 24x−56

Step-by-step explanation:

have a nice day !!

Answer:

Here you go Hope it helps!!

Step-by-step explanation:

Answer:

They Intersect at (-2,-8)

Step-by-step explanation:

This is a system of equation problem that I solved with graphing, if you need me to go into detail on how I did it or If you want me show how  to solve it how the question is asking, just let me know

Answer:

d= 90 degrees

e= 27 degrees

f= 153 degrees

Step-by-step explanation:

yes

Answer:

-3-5x

Step-by-step explanation:

4+(-7)-10x+5x

4-7-10x+5x

Answer:

−5−3

Step-by-step explanation:

Simplify

Subtract the numbers

4−7−10+5

−3−10+5

Combine like terms

−3−10+5

−3−5

Rearrange terms

−3−5

−5−3

Solution

−5−3

Answer:

Part A: B) 3

Part B: $40

4. -1

7. 5x + 6y

8. Part A: y = 20x

8. Part B: $300

9. e > 12000 pounds

Step-by-step explanation:

Part A: x = 5t + 5

20 = 5t +5

15 = 5t

t = 3

Part B: x = 5t + 5

x = 5(7) + 5

x = 35 +5

x = 40

4. 24 - 5^2

24 - (5*5)

24 - 25 = -1

7. 2x + 4y + 5 + 2y - 5 + 3x

2x + 3x = 5x

4y + 2y = 6y

5 + (-5) = 0

5x + 6y

8. Part A:

Total = y

Lawns = x

Amount = $20

so y = 20x

8. Part B:

y = 20x

y = 20(15)

y = 300

9. The elephant weighs more than 12000 pounds

Elephant = e

More than =  >

Pounds = 12000

e > 12000 pounds

Answer:

Option D

Step-by-step explanation:

the height of the first rectangle ( 30 ) over the height of the other rectangle     ( 3 )  is 30/3 and equals 10

the length of the first rectangle ( 60 ) over the length of the second rectangle  ( 6 )  is 60/6 and equals 10

the ratio of the sides of both rectangles are equivalent therefore the are similar

Answer: The interest rate was 9%.

Step-by-step explanation:

If principal amount P is invested at the rate of r percent with simple interest(I) for t years, the formula to find rate :

[tex]R=\dfrac{I\times100}{P\times t}[/tex]

As per given,

P = $ 500, I = $45, t = 1 year

Substitute values in formula , we get

[tex]R=\dfrac{45\times100}{500\times1}\\\\\Rightarrow R=9\%[/tex]

Hence,  The interest rate was 9%.

Answer:

II

Step-by-step explanation:

In Quad I b(y) is positive and in Quad III a(x) is negative so (-,+)

x is negative and y is positive in Quadrant II

9514 1404 393

Answer:

  54°, 54°, 72°

Step-by-step explanation:

Your ratios total 3+3+4 = 10 units, so each unit must stand for 180°/10 = 18°.

Then the angles are found by multiplying the ratio values by 18°.

  3 : 3 : 4 = 54° : 54° : 72°

Answer:

30 percent increase

Step-by-step explanation:

Answer:

triangle b

Step-by-step explanation:

triangle b has the same dimensions and corresponding angles. which means it is a rigid transformation which is what a translation is

Answer:

Triangle b

Step-by-step explanation:

Answer: $25

Step-by-step explanation:

20% = 0.20

125 x 0.20 = 25

$125 + $25 = $150 (the entire bill)

Answer:

20%/100 × 125 = 25

$125+25=50

hope it helps