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notsponge [240]
3 years ago
15

Write an expression that can be used to find 4x275 using mental math and properties of numbers

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0
(4x200) + (4x70) + (4x5)
 
Distributive property of multiplication
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Which dimensions cannot create a triangle?
zavuch27 [327]
Angles that create a triangle always add up to 180. 

To find sides that create triangles, we have to use the Triangle Inequality Theorem.
It's where side A + B will <em>always</em> be greater than side C
and B + C will always be greater than side A
<em>and</em> A + C will always be greater than side B.

So let's check all of these answers and pick the one that's incorrect.

A.
10 + 25 + 145 = 180?
Correct!

B. 
9 + 15 > 9?
Correct!
15 + 9 > 9?
Correct!
9 + 9 > 15?
Correct!

C. 
40 + 70 + 60 = 180?
Incorrect! 40 + 70 + 60 = 175 which is less than 180.

The answer is three angles measuring 40 m, 70 m, and 60 m.

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
7 0
3 years ago
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What is the product?
Brut [27]

Answer:

9.33

Step-by-step explanation:

12.44=311/25

(3/4)×(311/25)=(3×311/4×25)=933/100=9.33

3 0
3 years ago
Point B (-5, 5) is reflected over the x-axis. Where is B'?
stich3 [128]

Answer:

(-5, -5)

Step-by-step explanation:

8 0
2 years ago
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Solve for n<br> 3n + 2 - 2n + 5 = 17<br> (Combine like terms then solve.)
elixir [45]

Answer:

n+7=17

n=17-7

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Step-by-step explanation:

3 0
3 years ago
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Help me with this please
Reika [66]

Answer:

$2,459.21

Step-by-step explanation:

(see attached for reference)

recall that the formula for compound interest is:

A = P [ 1 + (r/n)^ (nt) ]

where,

A = Final amount ( we are asked to find this)

P = principal amount = given as $2,340

r = Annual Interest Rate = given as 5% = 0.05

n = number of times compounded in a year = 4 (compounded quarterly)

t= time = 1 year

Substituting the values into the equation,

A = P [ 1 + (r/n)^ (nt) ]

A = 2,340 [ 1 + (0.05/4)^ (4·1) ]

A = $2,459.21

6 0
3 years ago
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