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Solnce55 [7]
3 years ago
10

Jenna calculated several numbers in her calculator. The result displayed -1.7E-4 on the calculator screen. Which equivalent numb

er(s) does this represent? Select all that apply.
1. -1.7 x 10^-4
2. 1.7 x 10^-4
3. 0.00017
4. -0.00017
5. -1,700
Mathematics
2 answers:
Tems11 [23]3 years ago
8 0

Answer:

1 and 4.

Step-by-step explanation:

That would be -1.7 * 10^-4.

Also it can be written as -0.00017.

bekas [8.4K]3 years ago
7 0

Answer:

1, 4

Step-by-step explanation:

e is the exponent of the number, therefore it is the number which 10 is raised by, so -4.

Which means -1.7 will be multipled by 10 raised to the -4 power, so 1 is obviously correct.

Additionally, This is in scientific form. You can also write this in standard form in decimals, 10^-4 means it is 4 decimal places ahead the original number so you can move the decimal point back 4 places and add 0s, you will see that -0.00017 is also in fact correct.

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39.98× 0.5 is approximately equal to
avanturin [10]

Answer:

20

Step-by-step explanation:

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3 years ago
47.76 divided by 4.8
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6 0
3 years ago
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Which is equivalent to sin^-1(tan(pi/4)) ? Give your answer in radians.
aleksklad [387]
We are to find the value of sin^{-1}(tan( \frac{ \pi }{4}))

First we evaluate tan(π/4). The value of tan(π/4) is 1. 

So, 

sin^{-1}(tan( \frac{ \pi }{4})) =sin^{-1} (1)

sin(π/2) = 1
So,
sin^{-1}(1)= \frac{ \pi }{2}

Thus, we can write:

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So, the answer to this question is π/2 radians.
6 0
3 years ago
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A mirror is in the shape of an isosceles right triangle and has a hypotenuse length of seven times the square root of two. What
frez [133]

The length of one of the legs  of an isosceles right triangle and has a hypotenuse length of seven times the square root of two is 7 units.

<h3>What is an Isosceles triangle?</h3>

Isosceles triangles are triangles that has two of it sides equal to each other. The base angles of an isosceles triangle are equal.

The  isosceles triangle is also a right angle triangle. The hypotenuse is the longest side of a right angle triangle.

Therefore,

hypotenuse = 7(√2)

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Therefore, using Pythagoras theorem

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learn more on isosceles triangle here: brainly.com/question/10412877

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