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3 years ago

One type of insect is 0.0052 meters long. What is the lenght in scientific notation

Mathematics

1 answer:

Ket [755]3 years ago

8 0

Answer:

5.2 × $10^{-3}$

Step-by-step explanation:

a number in scientific notation is expressed as

a × $10^{n}$

where 1 ≤ a < 10 and n is an integer

write 0.0052 as a number between 1 and 10, that is 5.2

we have to the move the decimal point 3 places to the left to retain it's value

3 places left means n is - 3

0.0052 = 5.2 × $10^{-3}$

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155.5-5.5∙20.7 help me with this

Leto [7]

Answer:

41.65

Step-by-step explanation:

First do 5.5*20.7 because of PEMDAS or GERMDAS which is basically saying the order of how to solve expressions/equations

5.5*20.7=113.85

Then subtract 113.85 from 155.5

155.5-113.85=41.65

4 0

2 years ago

Read 2 more answers

g and Consider the following. f(x) = 4x2 + 5x − 18 (a) Find the instantaneous rate of change of the function at the value x = −4

Oduvanchick [21]

Answer:

a) $\frac{dy}{dx} = -27$ , b) $m = -27$

Step-by-step explanation:

a) The instantaneous rate of change is:

$\frac{dy}{dx} = 8\cdot x + 5$

$\frac{dy}{dx} = 8\cdot (-4)+5$

$\frac{dy}{dx} = -27$

b) The slope of the tangent line is equal to the instantaneous rate of change found previously.

$m = -27$

5 0

3 years ago

Jean transformed a point by using the rule (x,y) (x-6, y+8). The image point is (–4, 1). Which point is the pre-image?

lubasha [3.4K]

For this case we have the following transformation:
$(x, y) (x-6, y + 8)
$
Using the transformation we have that the image is:
$(-4, 1)
$
Therefore, making use of this information, we can find the coordinates of the pre-image
We have then:
$x-6 = -4
$
From here, we clear x:
$x = -4 + 6

x = 2$
On the other hand we have:
$y + 8 = 1
$
From here, we clear y:
$y = 1-8

y = -7$
The coordinates of the pre-image is:
$(x, y) = (2, -7)
$
Answer:
A point that is the pre-image is:
$(x, y) = (2, -7)$