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agasfer [191]
3 years ago
13

Bro i can’t fail this real talk i need help please i’ll give u a brainliest for your help please

Mathematics
2 answers:
Aliun [14]3 years ago
8 0

Answer:

58.6

Step-by-step explanation:

pi*r^2*h/3 is the formula to find a cone's volume

3.14*2^2*14/3 is 58.613 (3 repeating)

round to the nearest tenth

marin [14]3 years ago
5 0

Answer:

33.4933333333, rounded, 33.5x^{3}

4/3x3.14x2x2x2=33.4933333333

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Use slope formula to find the missing coordinate.<br><br> (r, 1) and (5, -7) Slope = 8/3
Lena [83]

Answer:

r=8

Step-by-step explanation:

The formula for slope is

m = (y2-y1)/ (x2-x1)

Substitute in what we know.

8/3 = (-7-1)/(5-r)

Simplify

8/3 = -8/(5-r)

We can use cross products to help us solve.

8 * (5-r) = 3 * (-8)

divide each side by 8

8/8 * (5-r) = 3 * (-8)/8

5-r = -3

Subtract 5 from each side

5-r-5 = -3-5

-r = -8

Multiply by -1

r = 8

3 0
3 years ago
What is the equation of a line perpendicular to why=2x-6 that passes through (5,4)
almond37 [142]

Answer:

y = ½(13- x)

Step-by-step explanation:

Step 1. Find the<em> slope (m₁) of the original line </em>

The equation for the original line is

      y = 2x - 6

slope = m₁ = 2

Step 2. Find the <em>slope (m₂) of the perpendicular line </em>

m₂ = -1/m₁     Substitute the value of m₁

m₂ = -1/2

Step 3. Find the <em>equation for the perpendicular line</em>

y = mx + b     Substitute the value of m₂

y = -½x + b

The line passes through (5, 4).  

4 = -½(5) + b     Add 5/2 to each side

4 = -5/2 + b     Add 2 to each side

b = 13/2  

y = -½x + 13/2

y = ½(13 – x)  

In the image, below, the red line is the graph of your original equation.

The blue line passing through (5, 4) is the perpendicular line.

4 0
3 years ago
Need this quickly!! im not good in math so .
oksano4ka [1.4K]
In algebra, symbols are used to represent numbers. Example: 5x=20 or 4x=24
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3 years ago
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viktelen [127]

Answer: 12 - c

Step-by-step explanation:

Really, the expression is 96/8 - c

where 96/8 means The number of questions each child would have gotten if the grandma was fair, and - c means the amount of cookies fewer Cindy received.  Simplifying this, makes the expression 12 - c.

Hope it helps <3

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3 years ago
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gayaneshka [121]

Answer:

It's between C and D. I would say it's D.

Step-by-step explanation:

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