3 years ago

Need help on numbers 10 and 11 please!! sos

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

5 0

Volume of prism B=800*6³/8³
=800*27/64
=25*27/2
=575/2
=287.5 cm³

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7x+5/9 (Simplify your answer. Use integers or fractions for any numbers in the expression.)

Black_prince [1.1K]

nothing can be further simplify in this problem

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2 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

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3 years ago

Jenna is having her birthday party at the ice cream palace. The ice cream party palace charges 2.49 for each ice cream cone

valentina_108 [34]

Answer:

No answer

Step-by-step explanation:

You seemed to have not pisted the whole question. if you need to find the cost of a certain number of cones, use this equation.

Y=2.49x

Let Y equal the total cost

Let x equal the number of cones

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Read 2 more answers

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True [87]

The answer is 7.8
Hope this helps!

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#3 is < , =, =
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9L= 9,000ml
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2 years ago