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lubasha [3.4K]
3 years ago
14

What is the value of the expression 2/4^-3?

Mathematics
1 answer:
Kisachek [45]3 years ago
5 0
\frac{2}{4^-3} \\ \\  \frac{2}{ \frac{1}{4^3} } \\ \\  \frac{2}{ \frac{1}{64} } \\ \\ 2 \times 64 \\ \\ 128 \\ \\ Answer: \fbox {128}
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A hiker at the top of a mountain spots his car back in the parking lot at the
mart [117]
<h2>Answer:</h2><h2>The angle of depression from the hiker to his car, Θ = 56.39 degrees</h2>

Step-by-step explanation:

A hiker at the top of a mountain spots his car back in the parking lot at the

bottom of the trail.  If the trail is 632 meters long and the mountain is 420

meters tall,

opposite side = 632 m

adjacent side = 420 m

Angle of depression, Θ = arctan (\frac{opposite}{adjacent} )

= arctan (\frac{632}{420} )

Θ = 56.39 degrees

3 0
3 years ago
suppose 8 out of every 20 students are absent from school less than 5 days a year predict how many students would be absent from
Liula [17]
40,000 divided by 20 = 500
500 x 12 (which was 20-8)= 6,000
6,000 students
4 0
3 years ago
Pick the numerical expression for: 2 minus b<br> A.2 - b<br> B.b-2<br> C. 2 X b<br> D.b : 2
Ivanshal [37]
I think the answer would be A
3 0
3 years ago
Counted a total of 40 white cars and yellow cars there were 9 times as many as white cars as yellow cars. how many white cars di
Law Incorporation [45]
Let W = number of white cars, and Y = number of yellow cars.
There were 9 times as many white cars as yellow cars. This means that the number of white cars was 9 times more than the number of yellow cars. This can be translated by the expression:
9Y = W
The person counted  40 cars in total:
W + Y = 40

So we get the system:
\left \{ {{W+Y=40} \atop {9Y=W}} \right.

In the first equation, we multiply by 9:
9W + 9Y = 360
In the second equation:
9Y= W
W-9Y = 0

Then we add the first with the second equation:
9W + 9Y + W - 9Y = 360
10 W = 360
W = 36

So He counted 36 white cars.

Hope this Helps! :)

8 0
3 years ago
Verify the equation below with each of the values listed for z to find a solution . 3-2z=1/10
ziro4ka [17]

3-2z=\frac{1}{10} \\30-20z=1\\-20z=-29 \\z=\frac{-29}{-20} \Longrightarrow z=\boxed{1.45}

8 0
3 years ago
Read 2 more answers
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