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goldfiish [28.3K]
4 years ago
7

What is the volume of a cube that has a diagonal of 12.8 inches

Mathematics
1 answer:
Digiron [165]4 years ago
5 0
The volume should be 403.6 in³
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Find the point, M, that divides segment AB into a ratio of 4:7 if A is at (-33,0) and B is at (0, 44).
Amanda [17]

Answer:

(-21, 16)  

Step-by-step explanation:

A is at (-33, 0) and B is at (0, 44),

A point that divides the line segment in a ratio of 4:7 also divides the differences of the x-and y-coordinates in the same ratio.

If we divide each distance into 11 equal parts and choose a length 4/11  of the distance, the other part will be 7/11 of the distance. The two parts will be in a ratio of 4:7.

For the x-coordinate,

x₂ - x₁ = 0 - (-33) = 0 + 33 = 33

(4/11) × 33 = 12

-33 + 12 = -21

The x-coordinate of M is (-21, 0).

For the y-coordinate,

y₂ - y₁ = 44 - 0 = 44

(4/11) × 44 = 16

0 + 16 = 16

The y-coordinate of M is (0, 16).

The coordinates of M are then (-21, 16).

The diagram below shows the point M that divides AB in a 4/7 ratio.

5 0
4 years ago
How to find the missing angle of a triangle using trig when you only know 1?
Sedbober [7]
If you have

2 KNOWN sides & 1 Angle ;
Use Cosine Rule

If you have 3 KNOWN sides,
Also Cosine Rule

If you have

2 KNOWN angles & 1 side,
Use SINE rule

If it's a right-angled triangle, use SOH CAH TOA

Hopefully this helps





3 0
3 years ago
<img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E%7B3%7D%2B3x%5E%7B2%7D-6x-8" id="TexFormula1" title="f(x)=x^{3}+3x^{2}-6x-8" al
seropon [69]

Answer:

Research mo sa goole diba tama

Step-by-step explanation:

Diba ma tig nan

5 0
3 years ago
What does the numerator of a fraction tell you about where to place it on a number line?
bixtya [17]
Is there a fraction or a number line to explain you question?☺
5 0
3 years ago
If f(x)=4x^2+1 and g(x)=x^2-5 find (f-g)(x)<br> A. 3x^2+6<br> B. 3x^2-4<br> C. 5x^2-4<br> D. 5x^2-6
nikklg [1K]

Answer:

It's A  3x^2 + 6.

Step-by-step explanation:

(f-g)(x) = f(x) - g(x)

= 4x^2 + 1 - (x^2 - 5)

= 4x^2 - x^2 + 1 + 5

= 3x^2 + 6.

4 0
3 years ago
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