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Semenov [28]
3 years ago
13

Help! 50 points Need it today

Mathematics
1 answer:
borishaifa [10]3 years ago
6 0

Step-by-step explanation:

I’m not positive about the models I’m bad at making models for my word problems but my explanation for the problem solving make sense

c I was confused so I didn’t even try to do it because I didn’t understand

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Find the equation of the line that is perpendicular to the given line and passes through the given point.
Solnce55 [7]

Answer:

y = 3x + 2

y = 6x – 3

y = 2/3x + 6

y = –1/3x – 4

y = 2x + 1

Correct answer:

y = 3x + 2

Explanation:

Convert the equation to slope intercept form to get y = –1/3x + 2.  The old slope is –1/3 and the new slope is 3.  Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b or 5 = 3(1) + b, so b = 2

So y = 3x + 2

7 0
3 years ago
The 5 players on the basketball team have a mean height of 141 cm. The heights of 4 of the players are listed below. The height
joja [24]

\frac{137+150+144+149+x}{5} =141

x=125

Therefore, the man is shorter than 141 centimeters.

7 0
3 years ago
Which relationships describe angles 1 and 2?
coldgirl [10]
Supplementary angles because because angle 1 + angle 2 = 180° so they form a line
6 0
3 years ago
Determine the 1-unit growth factor for f f. [We encourage you to write the expression that represents the value of the growth fa
timofeeve [1]

Answer: The complete question is found in the attachment

Step-by-step explanation:

a) To determine the 1-unit growth factor for <em>f</em>

= 2.1/1.75 = 1.2

b) To determine the 1-unit percent change for <em>f</em>

<em>=100 x 1-1.2/1 = 0.2 x 100= 20%</em>

<em>c) to determine the initial value of f</em>

<em>f(x)= abˣ , b =1.2   a=initial value</em>

<em>at (-1,2.1)</em>

<em>2.1= (1.2)⁻¹ x a</em>

<em>a = 2.1/(1.2)⁻¹ </em>

<em>a = 2.1 x 1.2 = 2.52</em>

<em />

<em>d) to determine the function formula for f</em>

<em>f(x)= abˣ = 2.52(1.2)ˣ</em>

6 0
3 years ago
Lindsey has 38 coins in her change purse that are either dimes or quarters. If b represents the number of quarters she​ has, wri
Yuki888 [10]
I believe it would be 38-n hope this helped.
6 0
3 years ago
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