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3 years ago

What is 2 2/5 as a decimal?

Mathematics

2 answers:

AlladinOne [14]3 years ago

7 0

the correct answer is 2.40

xxTIMURxx [149]3 years ago

7 0

$2 \frac{2}{5}=2.4=240%$

Hope this helps!

Thanks!

-Charlie

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Can someone help with #3 and show your work !!

ioda

If s represents the number of songs Kim downloads, her expenses for a month must satisfy the inequality
5.00 + 0.58·s ≤ 13.00

To solve this, subtract 5.00 to get the s-term by itself, then divide by the coefficient of s.
0.58·s ≤ 8.00
s ≤ 8.00/0.58 ≈ 13.79
The number of songs must be an integer, so we conclude Kim can download 13 songs, but not 14 songs.

Kim can download 13 songs without exceeding her budget.

8 0

3 years ago

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What is the GCF of 8x3y2 + 20x2y4?

ArbitrLikvidat [17]

8x^3y^2 = 4x^2y^2 (2x)
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3 years ago

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A sphere has a volume of 36π in3. What is the radius of the sphere?

amm1812

Answer:

r = 3 inches

Step-by-step explanation:

The formula for the volume of a sphere is the following:

V = (4π/3)r^3

You know the volume so plug that in for V:

36π = (4π/3)r^3

27 = r^3 (multiply by 3/4π to get r^3 by itself)

r = 3 (you take the cube root of r and 27 to get the value of r)

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3 years ago

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In the triangle below, 4/5 represents which ratio?

ASHA 777 [7]

Answer:
sin (C)

Explanation:
In a right-angled triangle, special trig functions can be applied. These functions are as follows:
sin (theta) = $\frac{opposite}{hypotenuse}$

cos (theta) = $\frac{adjacent}{hypotenuse}$

tan (theta) = $\frac{opposite}{adjacent}$ 

Now, let's check the triangle we have:
We have two options:
First option:
5 is the hypotenuse of the triangle
4 is the side adjacent to angle B
Therefore, we can apply the cos function:
cos (B) = $\frac{4}{5}$ 

Second option:
5 is the hypotenuse of the triangle
4 is the side opposite to angle C
Therefore, we can apply the sin function:
sin (C) = $\frac{4}{5}$

Among the two options, the second one is the one found in the choices. Therefore, it will be the correct one.

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3 years ago

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Please i have 15 minutes

TEA [102]

Answer:

$x = \dfrac{-\log 7}{\log 7 - \log 2}$