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2 years ago

Simplify 6.4×0.25×16/0.8×0.5 leaving your answer in standard form

Mathematics

2 answers:

Oliga [24]2 years ago

5 0

Answer:

Answer is 16

Step-by-step explanation:

(6.4)(0.25)(16)

0.8

(0.5)

(1.6)(16)

0.8

(0.5)

25.6

0.8

(0.5)

=(32)(0.5)

=16

saveliy_v [14]2 years ago

3 0

Answer:16 is the answer that’s it

Step-by-step explanation:

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What are the domain and range of this function y=(x+3)^2 -5

n200080 [17]

Answer: Choice A

Note: the range should be $[-5, \infty)$ . See explanation below.

===================================================

We can plug in any real number for x to get some output for y. The domain is the set of all real numbers in which we say $(-\infty, \infty)$ which is interval notation. It represents the interval from negative infinity to positive infinity.

The range is the set of possible outputs. The smallest output possible is y = -5 which occurs at the vertex (3,-5). We can get this y value or larger. So we can describe the range as the set of y values such that $y \ge -5$ and that translates to the interval notation $[-5, \infty)$ .

The square bracket says "include this endpoint" while the curved parenthesis says to exclude the endpoint. Your teacher mistakenly wrote $(-5, \infty)$ for choice A, when they should have written $[-5, \infty)$

I think either your teacher made a typo or somehow the formatting messed up. Either way, choice A is the closest to the answer.

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3 years ago

Read 2 more answers

Find parametric equations for the line through point P(-4,5,2) in the direction of the vector (-6,6,-5)

tigry1 [53]

The vector v (-6, 6, -5) points in the direction of itself, so we start there.

We can capture all points on the line through the origin and the point (-6, 6, -5) by scaling v by an arbitrary real number t.

The line through point P and pointing in the same direction as v is parallel to the other line that passes through the origin. Then the line we want can be obtained by translating the line through the origin by a vector p that points to (-4, 5, 2), so the vector equation for this line is

r (t ) = p + t v

r (t ) = (-4, 5, 2) + t (-6, 6, -5)

r (t ) = (-4 - 6t, 5 + 6t, 2 - 5t )

To get the parametric equations, simply take out the components:

x (t ) = -4 - 6t

y (t ) = 5 + 6t

z (t ) = 2 - 5t

4 0

3 years ago

Sketch one cycle of the cosine function y= cos 2θ

Liula [17]

Based on function transformations, the graph of y= cos(2θ), is the same as the graph of y= cos(θ), with a component B of 2, in which case, it means the period is the only thing that differs

well the period for this function will then be $\bf \cfrac{2\pi }{B}\iff \cfrac{2\pi }{2}\implies \pi$

so, the graph of is, the same as y= cos(θ), just shrunk by half horizontally

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3 years ago

Is the following statement TRUE or FALSE? Select the best choice from the following to justify your

ale4655 [162]

Answer:

$first \: answer \: is \: true$

5 0

3 years ago

Easy one - giving brainly if correct - show work.

Maksim231197 [3]

Answer:

a = 9.6 b = 11.2

Step-by-step explanation:

10 percent of 8 is .8

8 + (8 x .1) = 8.8

8.8 + .8 = 9.6

She will be paid 9.6 dollars after 1 full year of working, because working for one year is 12 months, and thats 10 percent of 8 twice. You can also put that as 20 percent of 8, aka 1.6

When you do 8+1.6 it equals 9.6

For the second part, that is 24 months, so 10 percent of 8 4 times. .8+.8+.8+.8 = 3.2

8+3.2 = 11.2

She will be paid 11.2 dollars after 2 full years of working.

Your answer isnt wrong, I dont know why your teacher is saying it is.

4 0

2 years ago

Simplify 6.4×0.25×16/0.8×0.5 leaving your answer in standard form​

Simplify 6.4×0.25×16/0.8×0.5 leaving your answer in standard form