The sum of two-fifths of a number and three-tenths of the number.

Mathematics

2 answers:

Lena [83]2 years ago

6 0

Answer:

Seven out of ten

Step-by-step explanation:

enyata [817]2 years ago

6 0

Answer:

7/10

Step-by-step explanation:

2/5+3/10=4/10+3/10=7/10

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Select the correct answer from each drop-down menu.

slamgirl [31]

A coordinate system in geometry is a system that employs one or more integers. The coordinates of point H are (66, -19).

<h3>What are coordinates?</h3>

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.

The coordinates of point A are (-3, 9), and the coordinates of point B are (9, 5). Therefore, the difference between any two coordinates can be written as,

Difference

x ⇒ 9 - (-3) = 9 + 3 = 12

y ⇒ 5 - 9 = -4

Now, since the point are at equal distances, therefore, the difference in their coordinates will be the same as well,

The coordinates of point C are,

x = 9 + 12 = 21

y = 5 + (-4) = 1

The coordinates of point C are (21, 1).
The coordinates of point E are (39, -7).
The coordinates of point H are (66, -19).

Learn more about Coordinates:

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3 0

1 year ago

Please anyone help me with this question

nikklg [1K]

Answer:

8uv÷v²

but putting the value of u and v.

8×2×4 ÷ 4²

=64÷16

8 0

2 years ago

Find the derivative

zalisa [80]

First use the chain rule; take $y=\dfrac{x+5}{x^2+3}$ . Then

$\dfrac{\mathrm df}{\mathrm dx}=\dfrac{\mathrm df}{\mathrm dy}\cdot\dfrac{\mathrm dy}{\mathrm dx}$

By the power rule,

$f(x)=y^2\implies\dfrac{\mathrm df}{\mathrm dy}=2y=\dfrac{2(x+5)}{x^2+3}$

By the quotient rule,

$y=\dfrac{x+5}{x^2+3}\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{(x^2+3)\frac{\mathrm d(x+5)}{\mathrm dx}-(x+5)\frac{\mathrm d(x^2+3)}{\mathrm dx}}{(x^2+3)^2}$