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3 years ago

Write a function rule for the statement. The output is one more than twice the input.

Mathematics

1 answer:

Alina [70]3 years ago

5 0

Dur

1 more than 2 times input
input is x
1 more than twice x
1+2x
f(x)=2x+1

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If a person walks 1/3 mile in 1/5 minutes, how far will that person walk in one hour?

astra-53 [7]

1/15 miles because you’re basically multiplying the fractions i believe

7 0

3 years ago

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. Consumer Awareness In 1986, the average cost of a new midsize four-door sedan was $9000. In 1991, the average cost was $12,000

eduard

Answer-

$\boxed{\boxed{y=9000(1.0592)^x}}$

And cost of a car in the year 2000 will be $20134.18

Solution-

Let's assume,

x = number of years after 1986

y = average cost of sedan in dollar

The exponential model that will model the scenario will be in the form of,

$y=ab^x$

where a and b are constants

As given that, in 1986 average cost of sedan was $9000 and in 1991 average cost of sedan was $12000

So, the points (0, 9000) and (5, 12000) will satisfy or lie on the exponential curve.

Putting (0, 9000) in the equation,

$\Rightarrow 9000=ab^0$

$\Rightarrow a\times 1=9000$

$\Rightarrow a=9000$

Now, the equation becomes $y=9000b^x$

Putting (5, 12000) in this equation,

$\Rightarrow 12000=9000b^5$

$\Rightarrow b^5=\dfrac{12000}{9000}$

$\Rightarrow b=\sqrt[5]{\dfrac{4}{3}}$

$\Rightarrow b=1.0592$

Putting the values,

$y=9000(1.0592)^x$

As we have to calculate the cost of sedan in 2000, so putting x=14(as 2000-1986=14),

$y=9000(1.0592)^{14}=20134.18$

Therefore, cost of a car in the year 2000 will be $20134.18

8 0

3 years ago

Max made a journey of 700km partly by train and partly by bus.He started his journey at 8.00am. by train which travelled at 50km

masha68 [24]

I really don't know I'm not big on school subjects

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3 years ago

If y=2x what if y=5?

BartSMP [9]

Answer:

Step-by-step explanation:

2 x 5= 10

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3 years ago

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The perimeter of the rectangle above is:

Nonamiya [84]

Step-by-step explanation:

given,

length = 4x²

breadth/width = y²

we know,

perimeter = 2l + 2b

so,

2(4x²) + 2(y²)

→ 8x² + 2y²

option A is correct

hope this answer helps you dear...take care and may u have a great day ahead!

4 0

3 years ago