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3 years ago

10

I need the surface area again plz

1 answer:

kolezko [41]3 years ago

8 0

Answer:

31

Step-by-step explanation:

A=2(wl+hl+hw)

l -Length

w-Width

h-Height

A=2(wl+hl+hw)=2·(1·2+4.5·2+4.5·1)=31

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14. Of the 400 students in the 8th grade, four-

In-s [12.5K]

Answer:

8 or 9

Step-by-step explanation:

So, you first need to take 4/5 of 400 (320). Then, you can count by 75s for a bit

75students; 2chaperones

150; 4

225; 6

300; 8

now, you have 20 students left over...since one chaperone would watch about 37 kids, you can either divide the remaining kids up among the other chaperones, or you can add one more chaperone to watch the 20 kids. i don't know what the teacher wants, so either 8 or 9 chaperones

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3 years ago

Read 2 more answers

Please.<br>solve the system of equations

Talja [164]

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (3,2)

Equation form:

x = 3

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3 years ago

A population of fish in a lake is 14000 in 2010. The population decreases 6% annually. What is the population in 2019

kodGreya [7K]

Answer:

8022.

Step-by-step explanation:

Let x be the number of years after 2010.

We have been given a population of fish in a lake is 14000 in 2010. The population decreases 6% annually.

We can see that population of fish is the lake is decreasing exponentially as it is decreasing 6% annually.

Since we know that an exponential function is in form: $y=a*b^x$ , where,

a = Initial value,

b = For decrease or decay b is in form (1-r) where r represents decay rate in decimal form.

Let us convert our given decay rate in decimal form.

$6\5=\frac{6}{100}=0.06$

Upon substituting our given values in exponential form of function we will get the population of fish in the lake after x years as:

$y=14,000*(1-0.06)^x$

$y=14,000*(0.94)^x$

Let us find x by subtracting 2010 from 2019.

$x=2019-2010=9$

Upon substituting x=9 in our function we will get,

$y=14,000*(0.94)^9$

$y=14,000*0.5729948022286167$

$y=8021.927\approx 8022$

Therefore, the population of fish in 2019 will be 8022.

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3 years ago

Ok this is a long one, so any help would mean the world, even if you only do part of it.

jeka94

It’s shehshdhshhshshshhs

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3 years ago

Jose needs to enclose a rectangular section of his yard. The perimeter of the section is 27 feet, and the area is 35 square foot

Ratling [72]

A = 35 sq ft
<span>L = 10 ft </span>
<span>W = 3.5 ft</span>

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3 years ago