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My name is Ann [436]
3 years ago
10

The weight of a blue whale is about 200,000 kg, or 2 x 105 kg.

Mathematics
2 answers:
Mamont248 [21]3 years ago
8 0

Blue whales, about 80 feet in length and over 250,000 pounds in weight, are much bigger than whale sharks.

inna [77]3 years ago
3 0

Answer:

a 1,000 times more? I'm not sure I've never been good wirh math

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Which is the better buy on apples?
lesantik [10]

Answer: The 12.81 for 14 lbs of apples is the better buy.

Step-by-step explanation:

Find the unit price (the price of 1 lb of apples)

7.64/8 lbs = 0.955 per pound

12.81/14 lbs. = 0.915 per pound;

7 0
3 years ago
Find the x and y int of <br><br> p(x)=-x^4+x^3+7x^2-x-6<br><br> Pls show work and explain thx
elixir [45]

Answer:

165

Step-by-step explanation:

p(3)=81+27+7(9)-6

81+27+63-6=165

3 0
3 years ago
can someone explain scientific notation to me? i dont know if this would be a right question but i need it to be explained
Nikitich [7]

Answer:

In step by step explanation

Step-by-step explanation:

Move your decimal until you have one non-zero number left of your deciaml point the number of times you moved you decimal to the left will be the exponent you put attached to a ten.

8 0
3 years ago
7 pencils cost £5.95. <br> How much do 11 pencils cost?
yuradex [85]

Answer:

11 pencils cost £9.35.

Step-by-step explanation:

Given;

7 pencils = £5.95

1 pencil = 5.95 ÷ 7

= £0.85

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= £9.35

5 0
3 years ago
Read 2 more answers
(1−√(5))×(2−√(5)) <br><img src="https://tex.z-dn.net/?f=%281%20%2B%204%20%5Csqrt%7B10%7D%20%29%282%20-%20%20%5Csqrt%7B10%7D%20%2
Leviafan [203]
To simplify these expressions, you can either use a calculator (which I'm assuming your teacher doesn't want you to do) or FOIL (distribute).

The first one would be:

(1- \sqrt{5}) (2- \sqrt{5}) \newline =(1)(2)+(1)(- \sqrt{5} )+(- \sqrt{5})(2)+(- \sqrt{5})(- \sqrt{5}) \newline =2- \sqrt{5}-2 \sqrt{5}+5 \newline =7-3 \sqrt{5}

The second one would be:

(1+4 \sqrt{10})( 2- \sqrt{10}) \newline =(1)(2)+(1)(- \sqrt{10})+(4 \sqrt{10} )(2)  +(4 \sqrt{10})(- \sqrt{10}) \newline =2-\sqrt{10}+8 \sqrt{10} -40 \newline =-38+7 \sqrt{10}
3 0
3 years ago
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