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Arisa [49]
3 years ago
14

Help please.

Mathematics
1 answer:
Nataliya [291]3 years ago
4 0

Answer:

B is the correct answer

Step-by-step explanation:

You have to do 6b- 1b 5b

-2a+5a= 3a

9

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After 2 years, a certain car is worth $16600. When it is 9 years old, the same car is then worth
Lubov Fominskaja [6]

The linear function that describes the situation is:

y = -950x + 18500.

  • The slope of -950 means that the price of the car decays $950 per year.
  • The y-intercept of 18500 means that the initial value of the car is of $18,500.
  • The x-intercept of 19.47 means that the value of car is of $0 after 19.47 years.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem, in 7 years, the price of the car decays by $6,650, hence the slope is given by:

m = -6650/7 = -950.

The slope of -950 means that the price of the car decays $950 per year.

Then, the equation is:

y = -950x + b.

After 2 years, a certain car is worth $16600, hence when x = 2, y = 16600, and:

16600 = -950(2) + b

b = 18500.

The equation is:

y = -950x + 18500.

The y-intercept of 18500 means that the initial value of the car is of $18,500.

The x-intercept is found when y = 0, hence:

-950x + 18500 = 0.

x = 18500/950

x = 19.47.

The x-intercept of 19.47 means that the value of car is of $0 after 19.47 years.

More can be learned about linear functions at brainly.com/question/24808124

8 0
2 years ago
Convert the polar representation of this complex number into its rectangular form: z=4(cos120 + isin 120)
Yakvenalex [24]

Answer:

The answer is D

Step-by-step explanation:

took the test

8 0
3 years ago
Can someone plz help me with this one problem plz!!!
kondor19780726 [428]

Answer:

<h2><em><u>25 square inches </u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

Parallel sides of the trapezium = 3in, 7in

Height of the trapezium = 5in

<em><u>Therefore</u></em><em><u>, </u></em>

Area of the trapezium

=  \frac{1}{2}  \times sum \: of \: parallel \: sides \times height

=  \frac{1}{2}  \times (7 + 3)in \times 5in

=  \frac{1}{2}  \times 10in \times 5in

= 5in × 5in

=  {25in}^{2}

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>Area</u></em><em><u> </u></em><em><u>if</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>trapezium</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>25</u></em><em><u> </u></em><em><u>square</u></em><em><u> </u></em><em><u>inches</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>

8 0
3 years ago
Please help this is due in 12 mins !!!?!?
MakcuM [25]
Answer: 3p = 1/2
( p + p + p ) = 1/2
8 0
3 years ago
Evaluate 6C3. <br><br> 18<br> 20<br> 60<br> 120
melomori [17]

Answer:

Step-by-step explanation:

nC_{r}=\frac{n!}{r!(n-r)!}\\\\6C_{3}=\frac{6!}{3!(6-3)!}\\\\=\frac{6!}{3!(6-3)!}==\frac{6!}{3!3!}\\=\frac{6*5*4*3!}{3!3!}\\\\=\frac{6*5*4}{3!}\\\\=\frac{6*5*4}{3*2*1}\\\\ =5*4=20

4 0
3 years ago
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