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pychu [463]
4 years ago
12

The points A(12,7), B(12,−3), C(−2,−3), and D(−2,7) form rectangle ABCD. Which point is halfway between A and B? CLEAR CHECK (12

,0) (12,5) (12,2) (12,−2)
Mathematics
1 answer:
Flura [38]4 years ago
4 0
We have that
coordinates  are
<span>A(12,7), B(12,−3), C(−2,−3), and D(−2,7) 
</span>
i use the formula of midpoint <span>between A and B
</span>Xm=(x1+x2)/2    Ym=(y1+y2)/2
A(12,7) B(12,−3)
Xm=(12+12)/2=12
Ym=(7+(-3))/2=2

the point  (12,2)   <span>is halfway between A and B</span>
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What is the best estimate for the product of 289 and 7
LUCKY_DIMON [66]

The best estimate would be the product of 290*10, which is 2,900. So if you were to multiply 289 and 7, the answer would be somewhere around 2,900.

I hope this helped!

5 0
3 years ago
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PLZZZZ I NEEED HELP!!!<br><br><br> I said please
Kamila [148]

Step-by-step explanation:

Angle 128 ° + Angle Y = 180 °

Y = 180 - 128

= 52 °

5x + 3 + Y = 180

5x + 3 + 52 = 180

5x + 55 = 180

5x = 180 - 55

5x = 125 °

x = 125 ÷ 5

x = 25

4 0
3 years ago
How do i simplify this?
Law Incorporation [45]

Answer:

k = 8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

-84 = -2(2 + 5k)

<u>Step 2: Solve for </u><em><u>k</u></em>

  1. Divide -2 on both sides:                    42 = 2 + 5k
  2. Isolate <em>k</em> term:                                    40 = 5k
  3. Isolate <em>k</em>:                                             8 = k
  4. Rewrite:                                              k = 8

<u>Step 3: Check</u>

<em>Plug in k into the original equation to verify it's a solution.</em>

  1. Substitute in <em>k</em>:                    -84 = -2(2 + 5(8))
  2. Multiply:                               -84 = -2(2 + 40)
  3. Add:                                     -84 = -2(42)
  4. Multiply:                               -84 = -84

Here we see that -84 does indeed equal -84.

∴ k = 8 is the solution to the equation.

5 0
3 years ago
Muffins cost $3.00 per dozen.
GenaCL600 [577]

Answer:

I agree with both of them

Step-by-step explanation:

A dozen is 12 muffins. Therefore, you pay $3.00 for 12 muffins.

We know that you pay $3.00 for 12 muffins we need to find out how much EACH muffin cost. For that we need to divide $3.00 by 12 which is 0.25.

Now we need to know how much it will cost us for 16 muffins. We use our equation 16*0.25 which is 4. Elena said she will pay 4 so she is right.

Andre said he will buy 8 muffins so we use our equation again 8*0.25 which is 2. He said he will pay 2 so he is right.

5 0
3 years ago
2. 3x + 2y = 22<br> 5x – 2y = 42
hammer [34]

Step-by-step explanation:

3x+2y=22

5x-2y=42

by adding both equation

8x. =64

x=64/8=8

substituting x in the 1st equation

we get,

3*8+2y=22

24+2y=22

2y=22-24

y=-2/2=-1

therefore,

x=8

y=-1

6 0
3 years ago
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