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Butoxors [25]
3 years ago
6

How many total hours did the girls spend cleaning their home

Mathematics
2 answers:
solmaris [256]3 years ago
7 0

Answer:

it should be 12

Step-by-step explanation:

because 3x4=12

ANTONII [103]3 years ago
7 0

Answer: 12

Step-by-step explanation: each girl spent 3 hours cleaning, their was 4 girls so 4 x 3 = 12

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Which expression is equal to...
salantis [7]
The answer is the one that has a denominator of X-5 :)
3 0
2 years ago
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y = -16x2 + 32x - 10 This parabola has x-intercepts, representing the times when the dolphin's height above water is feet.
Lina20 [59]
Answer: This parabola has 0.3875 x-intercepts,
<span>representing the times when the dolphin's height above water is </span>
0 feet.

The x-intercept is the point where the graph crosses the x-axis, which is when the value is y=0. 
The calculation for y=0 would be
<span>Y = -16x2 + 32x - 10
</span><span>0 = -16x2 + 32x - 10
</span>-8x2 + 16x - 5=0

-b +-√(b^2-4ac)  /2a=
-16 +-√(16^2-4(-8)(-5))  /2(-8) =
-16+- √(256-160/ -16 =
-16+- √(96/ -16 =
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6 0
3 years ago
Read 2 more answers
Please explain this to me.
Nutka1998 [239]

Answer:

  • The value of x is 12 units.

Step-by-step explanation:

<u>We know that:</u>

  • Formula: h² = a² + b²

<u>Let's solve using Pythagoras theorem.</u>

  • => 13² = 5² + x²
  • => 169 = 25 + x²
  • => 169 - 25 = x²
  • => 144 = x²
  • => √x² = √144
  • => x = √144
  • => x = 12

Hence, the value of x is 12 units.

3 0
2 years ago
Each marker weighs 10 g There are 8 markers in a pack. How much do all the markers weigh?
Ilya [14]
80 g 10 times 8 is 80 so the answer should be 80g
8 0
3 years ago
Estimate
Taya2010 [7]
126/10 would mean that from the original number, the decimal point is at 126.0 so when it is divided by 10, it will move over one placement, making it 12.6... I would estimate that your answer is C. 12.6
5 0
3 years ago
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