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Doss [256]
3 years ago
7

Please answer this correctly

Mathematics
1 answer:
nikklg [1K]3 years ago
4 0

Answer:

5 cm

Step-by-step explanation:

Use lenght times wight times height

So, you need to do 4 times 4 times ________ is 80

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Are the lengths of the side of the square and perimeter of the square related proportionally? Why or why not
telo118 [61]

Answer:

They are proportional

Step-by-step explanation:

becaue the length of one of the square's sides is 1/4 the perimeter

8 0
3 years ago
Which statement best describes f(x)= -2 √x-7 +1 –6 is in the domain of f(x) but not in the range of f(x). –6 is not in the domai
Archy [21]

Answer:

B. -6 does not belong to the domain but belongs to the range of f(x).

Step-by-step explanation:

We have the function, f(x)=-2\sqrt{x-7}+1.

So, the domain of the function is obtained when x-7\geq 0 i.e. x\geq 7

That is, the domain is {x | x≥ 7}.

Now as we have,

x\geq 7 → x-7\geq 0 → \sqrt{x-7} \geq 0 → -2\sqrt{x-7} \leq 0 → -2\sqrt{x-7}+1 \leq 1.

That is, f(x)\leq 1

Thus, the range of the function f(x) is {y | y≤ 1}.

Thus, we can see that,

-6 does not belong to the domain but belongs to the range of f(x).

5 0
3 years ago
A drinking straw has a circumference of 30 mm and a height of 210 mm.
dexar [7]
I think the straw can hold about 15000 mm^3.
3 0
3 years ago
Use the formula A = P(1 + r)" to solve.
Llana [10]

Answer:

Rate = 0.45 or 45%.

Step-by-step explanation:

20184 = 9600(1 + r)^2

(1 + r)^2 = 20184/9600 = 2.1025

Taking square roots of both sides:

1 + r = 1.45

r = 1.45 - 1 = 0.45.

7 0
2 years ago
A blue whale has a length of 28578 mm. What is the length of a blue whale in km? Show work.
vitfil [10]

move the decimal to the left 6 times and you'll get .028578

7 0
3 years ago
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