MATHEMATICS HIGH SCHOOL

Which of the following is true of a rectangle?It is also a square.
The sum of its angle measures is 360°.
It has four congruent angles.
It has four congruent sides.

Answers

Answer 1
Answer: the first one, it is also square 
Answer 2
Answer:

Answer:

first one and third one

Step-by-step explanation:

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Line j passes through points (-6,1) and (-3,6) .line m is parallel to line j and passes through point (15,-1). what is the equation of line m ?
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Vector AB has an initial point (4,3) and terminal point (-5,1). Determine the coordinates of the terminal point of AC if AC = -2ABA. (-9,-2)
B. (18,4)
C. (22,7)
D. (-4,-3)

Answers

Let's assume

point C=(x,y)

we are given

A=(4,3)

B=(-5,1)

now, we can find vector AB

AB=(-5,1)-(4,3)

AB=(-9,-2)

now, we can find AC

AC=(x,y)-(4,3)

AC=((x-4) , (y-3))

now, we are given

AC=-2AB

now, we can plug values

and we get

((x-4) , (y-3))=-2(-9,-2)

((x-4) , (y-3))=(18,4)

now, we can equate them equal

and then we can solve for x and y

x-4=18

x=22

y-3=4

y=7

so, point C is (22,7).........Answer
(22,7) I Took the quiz and that the answer

Rick needs to be at school at 8:15 A.M. It takes him 20 minutes to walk to school.At what time dose he need to leave to get to school on time?

Answers

Rick needs to leave at 7:55am to get to school on time.

7:55am is 20 minutes before 8:15am.

Sally has twice as many dimes as nickels. The total value is $3.50 how many nickels and dimes does she have?

Answers

d=2n
.05n+.1d=3.5
I multiplied the nickels and dimes by these values because that is their actual monetary value 
.05n=3.5-.1d
multiply everything by 20
n=70-2d
d/2=70-2d
.5d+2d=70 
2.5d=70
d=28 
n=14 
so there are 28 dimes and 14 nickels 
checking this answer 
28 dimes = $2.8
14 nickels = .70
2.8+.7=3.5
2n=d
nickel is 0,05 dollars     dime is 0.1 dollars
0.05(n)+0.1(2n)=3.5
0.25n=3.5
n=14
d=2(14)=28
hope u can understand

A worker has a gross wage of $560 per week and deductions of ; $180 loan repayments, $145.60 tax,

Answers

Gross wage = 560
loan repayments = 180
tax = 145.60

Net gross wage = 560 - [ 180+145.60 ]
                          = 560 - 325.6
                          = 234.4

How do you put (2001,17.60) and (2002,18.75) in slope intercept form?

Answers

So first you have to find slope, which is m.
m = (y2-y1)/(x2-x1)
m = (18.72 - 17.60) / (2002 - 2001)
m = 1,12/1
m = 1

Now you know what slope is, you take slope intercept form, and put in m and either of the x,y values given to find b. I'm going to use the first set of (2001,17.60) for x and y.

y = mx + b
17.60 = 1(2001) + b
17.60 - 2001 = b
-1983.4 = b

Now take the slope intercept formula again and just input m and b for your answer:

y = x - 1983.4

The designer also programs a bird with a path that can be modeled by a quadratic function. The bird starts at the vertex of the path at (0, 20) and passes through the point (10, 8). What is the slope of the line that represents the turtle's path?

Answers

Answer:

-1.2

Step-by-step explanation:

Given that the designer also programs a bird with a path that can be modeled by a quadratic function.

The bird starts at the vertex of the path at (0, 20) and passes through the point (10, 8).

If we treat this curve as line joining these two points then we can find the slope by the formula

Slope = change in y coordinate/change in x coordinate

Here the points given are

(0,20) and (10,8)

Change in y coordinate = 8-20 = -12\nChange in x coordinate = 10-0 = 10\nSlope = -1.2

Slope of the line that represents the turtle's path

=-1.2

Answer: 0.8

Step-by-step explanation: i got it right on edg

second part to the question is

h= 0

k= 20

a= -0.12

third part is letter B
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