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Evgen [1.6K]
3 years ago
10

Round 61.621 to the nearest centimeter.

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0
The answer would be 62.
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I’ve been having trouble with these all week!
Kobotan [32]

Answer:


Step-by-step explanation:

so you will move constant to the right side and change the sign. 72x=223-7

then you will subtract the numbers 72x=223-7 and that will give you 72=216

then you will divide both sides by 72  and that will give you

  1. x=3 .
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3 years ago
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For the given line segment, write the equation of the perpendicular bisector.
Jlenok [28]

Answer:

D) y = -4/5x – 47/10

Step-by-step explanation:

Step 1. Find the <em>midpoint of the segmen</em>t.

The two end points are (-6, -4) and (-2, 1).

The midpoint is at the average of the coordinates.

(xₚ, yₚ) = ((x₁ + x₂)/2, (y₁ + y₂)/2)

(xₚ, yₚ) = ((-6 - 2)/2, (-4 + 1)/2)

(xₚ, yₚ) = (-8/2, -3/2)

(xₚ, yₚ) = (-4, -3/2)

===============

Step 2. Find the <em>slope (m₁) of the segment</em>

m₁ = (y₂ - y₁)/(x₂ - x₁)

m₁ = (1 - (-4))/(-2 - (-6))

m₁ = (1 + 4)/(-2 + 6)

m₁ = 5/4

===============

Step 3. Find the <em>slope (m₂) of the perpendicular bisector </em>

m₂ = -1/m₁

m₂ = -4/5

====================

Step 4. Find the <em>intercept of the perpendicular bisector</em>

y = mx + b

y = -(4/5)x + b

The line passes through (-4, -3/2).

-3/2 = -(4/5)(-4) + b

-3/2 = 16/5 + b      Multiply each side by 10

 -15 = 32 + 10 b    Subtract 32 from each side

 -47 = 10b             Divide each side by 10

    b = -47/10

===============

Step 5. Write the <em>equation for the perpendicular bisector</em>

y = -4/5x – 47/10

The graph shows the midpoint of your segment at (-4, -3/2) and the perpendicular bisector passing through the midpoint and (0, -47/10).

4 0
3 years ago
How do you do percent
Veronika [31]
Take the decimal and multiply it by 100.
7 0
3 years ago
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at an amusement park there are 5150 moon shoes and 3041 cactus plants there are a total of 10881 prizes how many hats are at the
Mariana [72]
Easy. 8 hats because no one likes hats anymore.
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3 years ago
7.5t = ? kg what is t here and also the answer of it​
Nataliya [291]

Answer:

7500 kg

Step-by-step explanation:

t = tonnes

\because \: 1 \: t = 1000 \: kg \\  \therefore \: 7.5 \: t = 7.5 \times 1000 = 7500 \: kg

5 0
3 years ago
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