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Ulleksa [173]
3 years ago
12

72 POINTS I NEED HELP 3RD GRADE MATH!!!! 10 11/12 + 7 1/4

Mathematics
1 answer:
dalvyx [7]3 years ago
6 0

Answer:

As a decimal your answer would be 18.1666666667

Step-by-step explanation:

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Factorise 16x2 + 4y2 + 9z2 – 16xy + 12yz – 24zx using standard algebraic identities.​
Zigmanuir [339]

Step-by-step explanation:

16x2 + 4y2 + 9z2 – 16xy + 12yz – 24zx

(-4x)²+(2y)²+(3z)²+2(-4x)(2y)+2(2y)(3z)+2(-4x)(3z)

So,

(-4x+2y+3z)²

or

(-4x+2y+3z).(-4x+2y+3z)

4 0
3 years ago
WILL MAKE BRAINLIEST <br><br> write the slope intercept form of the equation of each line
Anastasy [175]

Answer:

15. C

16. A

Step-by-step explanation:

Good luck brotha!

4 0
3 years ago
Demarco paid $3.19 per gallon both times that he stopped for gas on a weekend trip. He bought 12.53 gallons of gas the first tim
Anon25 [30]
You didn't include the options, so whichever one looks like x=(12.53+11.86)3.19 or something similar. You need to add the amount of gallons he bought, then multiply them by the cost per gallon, which will most likely be set equal to a variable. 
7 0
4 years ago
Read 2 more answers
Can anyone please help me with this?
AnnyKZ [126]

Answer:

m∠QPT = 110°

Step-by-step explanation:

1. We can use exterior angle theorem to find m∠QPT. Exterior Angle Theorem states that the exterior angle of a triangle is equal to the sum of the two remote angles in that same triangle.

  • This means that 6x + 20 = x + 40 + 4x - 5. Then, we can plug in the value of x into 6x + 20 and find the measure of ∠QPT.

2. (Solving)

Step 1: Combine like terms.

  • 6x + 20 = (x+4x)+(40-5)
  • 6x + 20 = 5x + 35

Step 2: Subtract 20 from both sides.

  • 6x + 20 - 20 = 5x + 35 - 20
  • 6x = 5x +15

Step 3: Subtract 5x from both sides.

  • 6x - 5x = 5x +15 - 5x
  • x = 15

Step 4: Check if solution is correct.

  • 6(15)+20=(15)+40+4(15)-5
  • 90 + 20 = 15 + 40 + 60 - 5
  • 110 = 55 + 60 - 5
  • 110 = 115 - 5
  • 110 = 110

3. Now, let's plug in 15 for 6x + 20:

  • 6(15)+20
  • 90+20
  • 110

Therefore, m∠QPT = 110°.

7 0
3 years ago
Read 2 more answers
What is the elapsed time between 3:40 AM and 2 PM?
UNO [17]
<span>10 hrs 20 mins just count and when you get to 12, go back to 1 but make sure you change it to either PM or AM</span><span />
5 0
3 years ago
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