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forsale [732]
3 years ago
9

FIND EQUATION OF LINE

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

Y=4x-9

Step-by-step explanation:

Take two points; (0,-9) and (2,-1)

The slope will be: (-1-(-9))÷(2-0)

And it equals 4

A point (2,-1)

y-y1=m(x-x1)

Y-(-1)=4(x-2)

Y+1=4x-8

Y=4x-9

Hope it helps

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x = 1/2m

Step-by-step explanation:

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Evaluate the function when x = -3
Marta_Voda [28]

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10

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f(-3)=-2(-3)+4=6+4=10

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Find the percent of the area under the density curve where x is more than 3. <br>​
Gekata [30.6K]

Answer:

The percent of the area under the density curve where x is more that 3 is 25 %.

Step-by-step explanation:

Since the density curve is a linear function, the area under the curve can be calculated by the geometric formula for a triangle, defined by the following expression:

A = \frac{1}{2}\cdot (x_{f} - x_{o})\cdot  (y_{f}-y_{o}) (1)

Where:

A - Area, in square units.

x_{f} - x_{o} - Base of the triangle, in units.

y_{f} - y_{o} - Height of the triangle, in units.

The percent of the area is the ratio of triangle areas under the density curve multiplied by 100 per cent, that is:

x = \frac{\frac{1}{2}\cdot (5-3)\cdot (0.25) }{\frac{1}{2}\cdot (5-1)\cdot (0.5) }\times 100\,\%

x = 25\,\%

The percent of the area under the density curve where x is more that 3 is 25 %.

7 0
3 years ago
I need help with math!!! time is running out!!! will mark brainliest!!!
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Answer A. (x<1)

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Answer A.

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What amount of money do you have if you have 5 pennies, 13 nickels, 14 dimes, 2 quarters, and one 5 dollar bill?
BartSMP [9]

Answer:

$7.60

Step-by-step explanation:

  • Penny = $0.01
  • Nickel = $0.05
  • Dime = $0.10
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( 5 × 0.01 ) + ( 13 × 0.05 ) + ( 14 × 0.10 ) + ( 2 × 0.25 ) + 5

                -<em>The 5 at the end represents the </em><u><em>one</em></u><em> five dollar bill.</em>

Simplified: (solve what is in the parenthesis)

0.05 + 0.65 + 1.4 + 0.50 + 5 = $7.60

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3 years ago
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