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3 years ago

-1/4×3/5×-2/5 what dose this Equal

Mathematics

1 answer:

Makovka662 [10]3 years ago

6 0

Answer:

0.06

Step-by-step explanation:

Just type it into your calculator. For me its easier to not try and do it in your head. Plus you'll always have a calculator with you if you have a phone.

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A symbol used to represent an unknown value or quantity

bixtya [17]

Variables represent unknowns. They are often letters (like x) but can also be other symbols like Greek numerics.

Hope this helps!!

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3 years ago

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-7(7x+8)≤287 please help its urgent

weqwewe [10]

X is great her than or equal to 7

8 0

3 years ago

What percent of 96 is 36

Stells [14]

If you divide 36 by 96, you get 0.375.
That get's you %37.5!

Divide 36 by 96, then divide the answer by 100

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3 years ago

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Which describes the cross section of a square prism that passes through vertices A, B, and C?

expeople1 [14]

Answer:

In triangle ABC one side equal $8\sqrt{2}$ and two sides equal $4\sqrt{13}$

Step-by-step explanation:

We are given a prism whose base is square with sides 8 in and height 12 in.

If we take cross section through vertices A, B and C

We will get a cross section as triangle.

In triangle ABC, sides are AB, BC and AC

AB is diagonal of top square whose side 8 in.

$AB=\sqrt{8^2+8^2}=8\sqrt{2}$

AC is face diagonal of front face.

$AC=\sqrt{8^2+12^2}=4\sqrt{13}$

BC is face diagonal of right face.

$BC=\sqrt{8^2+12^2}=4\sqrt{13}$

AC=BC≠AB

Hence, In triangle ABC one side equal $8\sqrt{2}$ and two side equal $4\sqrt{13}$

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3 years ago

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For what values of the numbers a and b does the function below have maximum value f(1) = 4? (Round the answers to three decimal

Georgia [21]

F (x) = $a x e^{b x^{2} }$
f ` (x) = $a( e^{b x^{2} } +x e ^{b x^{2} } *2 b x )=a e ^{b x^{2} } (1+2b x^{2} )$
f ( 1 ) = 4
f ` ( 1 ) = 0
$4 = a e ^{b} \\ a e ^{b} (1 + 2 b ) = 0 \\ 4 ( 1 + 2 b )= 0
$
b = -1/2
$4=a e ^{-1/2} = \frac{a}{ \sqrt{e} } \\ a = 4 \sqrt{e}$
Answer: a = 4√e, b = -1/2

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3 years ago