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Archy [21]
4 years ago
13

Does anyone know this ?

Mathematics
2 answers:
vodomira [7]4 years ago
5 0

Answer:

Always

Step-by-step explanation:

If the irrational parts of the numbers have zero sum, the sum is rational. If not, the sum is irrational. It is true, for example, for 2 7, 3. It is false, for example, for3+2 5,−2 5 .

Kryger [21]4 years ago
4 0

Answer:

always

Step-by-step explanation:

Rational numbers can be expressed as a fraction of two integers. So, adding two rationals is the same as adding two such fractions.

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-2(x+1)=-3 what does x equal<br> Using distributive property
Luda [366]

Answer:

X=1/2

Step-by-step explanation:

-2x1/2=-1

-2x1=-2

-1+-2=-3

4 0
4 years ago
Read 2 more answers
Name 2 same side interior angles
Leokris [45]

Answer:

Transversal and Consecutive

7 0
3 years ago
Mariel went to Macy's .she bought a coat for159.90.mariel presented the casher with a coupon that was 25 percent off .Calculate
weeeeeb [17]

Answer: Discount = $39.98

Step-by-step explanation:

Given coupon discount of 25% off

Discount will be 25% of cost of the coat

Cost of the coat = $159.90

Discount = 25/100 × 159.90

= $39.975

Approximately $39.98

4 0
3 years ago
7.4.PS-6
Sedaia [141]

Answer:

The area of the given polygon is:

  • <u>232 cm^2</u>

Step-by-step explanation:

To find the area of the polygon in the picture, you can divide the polygon in three rectangles: a 3 cm by 14 cm, a 5 cm by 14 cm rectangle, and the last rectangle must have a base of 12 cm (20 cm - 3 cm - 5 cm), and a height of 10 cm (14 cm - 4 cm). We can calculate the area of the rectangles with the formula below:

  • Area of a rectangle = Base * height

Now, we're gonna replace the measurements in the formula.

<em>First rectangle:</em>

  • Area of a rectangle = 3 cm * 14 cm
  • <u>Area of a rectangle = 42 cm^2</u>

<em>Second rectangle:</em>

  • Area of a rectangle = 5 cm * 14 cm
  • <u>Area of a rectangle = 70 cm^2</u>

<em>Third rectangle:</em>

  • Area of a rectangle = 12 cm * 10 cm
  • <u>Area of a rectangle = 120 cm^2</u>

By last, we must add the area of the rectangles:

  • Area of the polygon = 42 cm^2 + 70 cm^2 + 120 cm^2
  • <u>Area of the polygon = 232 cm^2</u>

As you can see, <em><u>the area of the polygon in the picture is 232 cm^2</u></em>.

5 0
3 years ago
Jacob bought a ring for $17, a necklace for $32, and a bracelet for $53. He paid $9.18 in tax for the purchase. What percent of
natali 33 [55]

Answer:

9%

Step-by-step :

9.18 divided by 102 which is the total for everything he bought is .09 which is 9%

5 0
3 years ago
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