reflection of -2,4 1,2 -2,1 across x axis

Answer:

110°

Step-by-step explanation:

Since all angles on a straight line add upto 180°,

Angle 1 + Angle 2 = 180

Angle 1 + 70 = 180

Angle 1 = 180 -70

Angle 1 = 110°

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Answer:

1/4, -1/8, 1/16

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

Let x be the numerator

Let y be the denominator

1st equation:

(x-1) / (y-1) = 1/2

By simplifying the equation, 2(x-1) = y-1

y = 2(x-1) + 1

2nd equation:

(x+1) / (y+1) = 2/3

By simplifying the equation, 3(x+1) = 2(y+1)

3x + 3 = 2y + 2

2y = 3x + 1

y = (3x + 1) / 2

Substituting the value of y from the 1st equation to the 2nd equation:

1st equation: y = 2(x-1) + 1

2nd equation: y = (3x + 1) / 2

2(x-1) + 1 = (3x+1) / 2

x = 3

After finding the value of x, let's find y using the 2nd equation:

y = (3x + 1) / 2

y = [(3)(3) + 1] / 2

y = 5

Alternatively, we may also find the value of x using the first equation, and the result is still the same:

y = 2(x-1) + 1

y = 2(3-1) + 1

y = 5

CHECKING TIME!!!

Substituting the values of x and y:

Let x be the numerator, x = 3

Let y be the denominator, y = 5

1st equation: (x-1) / (y-1) = 1/2

(3-1) / (5-1) = 1/2

2/4 = 1/2

By simplification, 1/2 = 1/2

2nd equation:

(x+1) / (y+1) = 2/3

(3+1) / (5+1) = 2/3

4/6 = 2/3

By simplification, 2/3 = 2/3

Answer:

$5 per pound of grapes

Step-by-step explanation:

Because 2/5 a pound of grapes cost $2 you would add another $2 for 4/5 pound of grapes. Then, you would divide 2 by 1/2 to get $1.

So 1 pound of grapes = $5

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The cost of per pound of grapes is $5.

A number juggling activity is determined by consolidating operands with one math administrator. The built-in functions ADD, SUBTRACT, DIVIDE, and MULTIPLY can also be used to specify arithmetic operations.

Both the plus sign and the minus sign can be used as operators with prefixes or infixes. Only infix operators can be used to represent all other arithmetic operators.

Given cost of 2/5 pound of grapes is $2

2/5p = 2

where p = pound

p = (2 x 5)/2

1p = 5

1 pound = $5

Therefore the 1 pound of grapes cost $5.

Learn more about arithmetic operations;

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Answer:

[tex]5 {}^{125} \div 5 {}^{124} = \\ 5 {}^{125} - {}^{124} = \\ = 5 {}^{1} [/tex]

Answer:

5¹²⁵ ÷ 5¹²⁴

=5¹²⁵-¹²⁴

=5¹

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Division of 34 by 3 :

and remainder = 1

Answer:

(-1, -3) is in Quarter III on the coordinate grid.

If you want to find the reflection of it from the x-axis, the answer is (-1, 3) in Quarter II. But if you want to find the reflection of it from the y-axis, the answer is (1, -3) in Quarter IV.

Answer:

13.125 inches

Step-by-step explanation:

5/8*21=13.125

Answer:

0.45oz or honey

Step-by-step explanation:

5.40/12

Answer:

42.25 cm & 58 cm,16.9 & 23.2 cm, 25.35 & 34.8 cm could be the distances on Allyson's map.

Step-by-step explanation:

Answer:

4 = 60     5 =  120     6 = 120     7 = 60

Step-by-step explanation:

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

Answer:

h(-4) = -1

h(-1) = -1

h(0) = 2

Step-by-step explanation:

h(-4) = -1 because -4<-1 and from the instructions if x < -1, it is -1

h(-1) = -1 because -1 = -1

h(0) = 2 because if 1<x<2 than we have to solute this -(x-1)^2 + 3

in this we have to replace x with 0

-(0-1)^2 + 3= -(-1)^2 + 3 = -1 +3 = 2

hope it will help you ;)

Answer:

6719.1535

Step-by-step explanation:

take 65.2345 times 103.on a calculator and you get 6719.1535

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Using identity :

the Above term can be written as :

Answer:

X = 50

Step-by-step explanation:

Both equations TOGETHER equal 180 degrees so you write the equation:

2x + 30 + x = 180

(combine X's. Subtract 30 from both sides):

3x = 150

(divide both sides by 3)

X = 50

Answer:

16 children would be left out in this arrangement​

Step-by-step explanation:

Total number of children in a school = 500

For P.T. Drill number of rows = number of columns =x

The number of children who will be left out = 500−x^2  .

The square root of 500 gives remainder as 16 that means, the square of 22 is less than 500 by 16

To make it a perfect square = 500−16=484 Therefore, number of children left will be 16

= 16 children would be left out in this arrangement​

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Answer:

what’s the question?

Step-by-step explanation:

I linear pair are supplementary angles that are the adjacent angles when two lines cross. angle1 + angle7 = 180

Answer:

x=7,x=-2

Step-by-step explanation:

x^2-5x-14=0

x^2-7x+2x-14=0

x(x-7)+2(x-7)=0

(x-7)(x+2)=0

x=7;x=-2

Answer:

= 7

= − 2

Step-by-step explanation:

hope this helps you sorry if it does not

Answer:

The better buy is the box of 7 pencils each costing .09 versus .10 for the box of 11 pencils.

7/.063=9 cents per pencil

11/1.10=10 cents per pencil

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Answer:

981.3

Step-by-step explanation:

Answer:

Sally has 1 muffin on the counter and she finds another muffin in the oven and she adds up how many muffins she has and she gets 2

Step-by-step explanation:

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Answer:

1 + 1 = 2

Explanation:

Take a quick look at an addition chart, and you'll see that 1 + 1 = 2. Why is this? This is because when you add one and one you get two.

Answer:

Width= 36 Length=78

Step-by-step explanation:

width= w

length = 2w+6

perimeter = 2(l+w)

228=2(2w+6+w)

228 = 2(3w+6)

228=6w+12

216 =6w

w=36

width= w=36 ft

length = 2w+6 = 2(36)+6=78 feet

Answer:

The sum of a positive integer and a negative integer always being negative is FALSE. Say were adding these two integers together, one of which is postive and the other negative: -5 + 12

-5 + 12 is equal to 7, which is NOT a negative integer.