3 years ago

Please help pic is included

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

The answer to Ur ? is -2

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a rectangles perimeter and area have the same numerical value. the width of the rectangle is 9 units . what is the length of the

attashe74 [19]

Answer:

Step-by-step explanation:

let the length of rectangle=l units

width=9

p=2(l+9)

area=9l

9l=2(l+9)

9l=2l+18

7l=18

l=18/7 units

5 0

3 years ago

Ezra deposited $30 in a savings account earning 10% interest, compounded annually.

lyudmila [28]

Answer:

$36.00

Step-by-step explanation:

10% of 30 is 6. Add that to the original amount

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3 years ago

15% a football originally priced at $18.00

lesantik [10]

Answer:

2.7

Step-by-step explanation:

15% of 18.00 is 2.7

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3 years ago

If you drive for 3hrs at 60mph and then for 2 hrs at 70mph how far will you travel

Phantasy [73]

60 miles per hour
distance=rate times time
first part
rate=60mph
time=3h
distance=60mph times 3h=180 miles

part 2
time=2 hours
rate=70mph
distance=70mph times 2h=140miles

total is 180mi+140mi=320miles

5 0

3 years ago

Read 2 more answers

Find f(5) for f(x)=1/9(3)^x

mina [271]

We know: 9 = 3²

Therefore $\dfrac{1}{9}=\dfrac{1}{3^2}$

We know the property:

$\dfrac{a^n}{a^m}=a^{n-m}$

Therefore $\dfrac{1}{9}\cdot3^x=\dfrac{3^x}{3^2}=3^{x-2}$

We must find f(5). Put x = 5 to the equation of the function:

$f(5)=3^{5-2}=3^3=3\cdot3\cdot3=27$

<h3>Answer: f(5) = 27.</h3>

7 0

3 years ago