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Leni [432]
3 years ago
11

Can you please help me with my math homework

Mathematics
1 answer:
Tamiku [17]3 years ago
4 0

Collinear points are points on the same line, with this in mind:

A is true

B is false

C is true

D is false

E is true

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A rectangular prism has a base of 18 cm by 15 cm and a diagonal of 25 cm. Identify its height. Round to the nearest tenth. HELP
jok3333 [9.3K]

Answer:

8.7 cm

Step-by-step explanation:

You know the relationship between the diagonal of a rectangular prism and the sides as d^2 = x^2 + y^2 + z^2 where x, y and z are the three dimensions of the prism. from your data, 25^2 =18^2 + 15^2 + z^2 or z^2 = 25^2 -18^2 - 15^2. With some simple calculation you getz^2 = 625 - 324 - 225 = 76, or z= 8.7178....

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3 years ago
I have a math project i need help with!?!?
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5 0
4 years ago
Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers o
tresset_1 [31]
ANSWER
13 {x}^{3}  - 2 {x}^{2}  + 3x + 13

EXPLANATION

The first polynomial is
5 {x}^{3}  + 3 {x}^{2}  - 5x + 4


The second polynomial is
8 {x}^{3}  - 5 {x}^{2}  + 8x + 9


If we add the two polynomials we obtain,



(5 {x}^{3}  + 3 {x}^{2}  - 5x + 4) + (8 {x}^{3}  - 5 {x}^{2}  + 8x + 9)


Next we group like terms to obtain,


5 {x}^{3} + 8 {x}^{3}+ 3 {x}^{2}  -5 {x}^{2}   - 5x  + 8x + 9 + 4



We simplify the to obtain,


13{x}^{3} -2{x}^{2}    + 3x + 13

This is the sum of the two polynomials in descending powers of
x


Descending means from the highest power to the least.
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Montano1993 [528]
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Which property is best to use when determining the strength of an ionic bond in a solid?
Shtirlitz [24]
I think the best property to use is electronegativity since that is how much it attracts/wants electrons.  The larger the difference in electronegativity is between two atoms, the stronger the ionic bond will be.  This is also why two atoms need to have a minimum difference between the electronegativity to be considered ionic and not covalent.
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3 years ago
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