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3 years ago

Seven less than an unknown number

Mathematics

1 answer:

Sauron [17]3 years ago

7 0

Answer:

x-7

Step-by-step explanation:

unknown number = x

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Write 50,000 using power of ten, multiplication and an exponent

Nookie1986 [14]

Answer:

It's 5 x 10 power 4

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2 years ago

Find the distance between (-4,-3) and (-8,2)

Masja [62]

The distance (r) between any two points (a,b) and (c,d) is :—

$r = \sqrt{{(a - c)}^{2} + {(b - d)}^{2} }$

Putting the values,

$\sqrt{ {( - 4 + 8)}^{2} + {( - 3 - 2) }^{2} }$

$r = \sqrt{16 + 25}$

$r = \sqrt{41}$

The distance between the points is √41

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3 years ago

Write an exponential function to model the following situation.

xxTIMURxx [149]

Answer:

Part 1) The exponential function is $y=140,000(1.05)^x$

Part 2) $305,602\ people$

Step-by-step explanation:

Part 1) Write an exponential function

we know that

The exponential growth function is given by the formula

$y=a(1+r)^x$

where

y is the population

x is the number of years

a is the initial population

r is the rate of change

we have

$a=140,000\ people\\r=5\%=5/100=0.05$

substitute

$y=140,000(1+0.05)^x$

$y=140,000(1.05)^x$

Part 2) How much will the population be after 16 years?

For x=16 years

substitute the value of x in the exponential function

$y=140,000(1.05)^{16}=305,602\ people$

6 0

3 years ago

Due today Solve the equation.<br><br> 17n=−4 what does n equal

7nadin3 [17]

Answer:

17n=-4 ÷17

n=-0.235

Step-by-step explanation:

prove me wrong

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3 years ago

2/3(2x-4)=2x how do you work this please

bonufazy [111]

Answer:

x=-4

Step-by-step explanation:

4x/3-8/3=2x

4x-8=6x

2x=-8

x=-4

6 0

3 years ago

Seven less than an unknown number ​

Seven less than an unknown number