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Olegator [25]
3 years ago
6

Forensic scientists use the equation h=2.6f+47.2 to estimate the height h of a woman given the length in centimeters of her femu

r bone.
a.) Suppose the equation has a margin of error +/- 3 centimeters. Write an inequality to represent the height of a woman given the length of her femur bone.
​
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
3 0

Answer:

try google

Step-by-step explanation:

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A company offers four plans for customers who want to rent DVDs and video games. The cost of the plans can be modeled by a linea
Luba_88 [7]
To solve this, we are going to use the slope formula, and the point slope formula.
Slope formula: m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}
where
m is the slope.
(x_{1},y_{1})  are the coordinates of the first point.
(x_{2},y_{2})  are the coordinates of the first point.
Point-slope formula: y-y_{1}=m(x-x_{1})

Plan A. Coordinates of the first point: (1,14) (number of discs, cost). Coordinates of the second point: (2,17). Lets replace those values in our slope formula:
m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}
m= \frac{17-14}{2-1}
m=3
Now that we have the slope, we can use the point slope formula:
y-y_{1}=m(x-x_{1})
y-14=3(x-1)
y-14=3x-3
y=3x+11
Remember that in a linear equation of the form y=mx+b, m is the slope and b is the y-intercept. In our model the y-intercept is the membership fee.
Since b=11 in our linear equation, we can conclude that the membership fee is $11

Plan B. Coordinates of the first point (1,12). Coordinates of the second point (2,16).
m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}
m= \frac{16-12}{2-1}
m=4
y-y_{1}=m(x-x_{1})
y-12=4(x-1)
y-12=4x-4
y=4x+8
Membership fee: $8

Plan C. Coordinates of the first point: (1,10). Coordinates of the second point: (2,15).
m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}
m= \frac{15-10}{2-1}
m=5
y-y_{1}=m(x-x_{1})
y-10=5(x-1)
y-10=5x-5
y=5x+5
Membership fee: $5

Part D. Coordinates of the first point: (1,12). Coordinates of the second point (2,21).
m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}
m= \frac{21-12}{2-1}
m=9
y-y_{1}=m(x-x_{1})
y-12=9(x-1)
y-12=9x-9
y=9x+3
Membership fee: $3

We can conclude that the plan that has the smallest one-time membership is <span>Plan D.</span> 


6 0
3 years ago
Read 2 more answers
Answer quick plsssssssssss
Deffense [45]

Answer:

$64

Step-by-step explanation:

Let the pay of Bella be x and Glen be y.

ATQ, 7x-5y=46 and 6x+5y=188, x=18, y=16.

Glen earned 4*16=64 bucks on Friday.

5 0
3 years ago
If f(x) = 4x + 12x and g(x) = 5x - 1, find (f + g)(x).
egoroff_w [7]

Answer:

= 21x - 1

Step-by-step explanation:

= (4x + 12x) + (5x - 1)

= 4x + 12x + 5x - 1

= 16x + 5x - 1

= 21x - 1

3 0
3 years ago
What is the probability of choosing a burrito with cheese and a taco or wrap with salsa??
torisob [31]

Step-by-step explanation:

50/50 chance of choosing one or the other because there is only two options

6 0
3 years ago
In a right triangle, if a = 8 and c = 17, what is the correct setup to find the value of b?
salantis [7]

Answer:

b =15

Step-by-step explanation:

We can use Pythagoras theorem to find b:

a^{2}+b^{2} = c^{2}

8^{2} + b^{2} = 17^{2}

64 + b^{2} = 289

64 + 225 = 289

64 + 15^{2} = 289

b = 15

hope this helps :) and sorry if not right

7 0
3 years ago
Read 2 more answers
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