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Temka [501]
3 years ago
11

What is the difference between (-10)² & -10²? What are the values for each expression?

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:

they are the same .the answer is 20 positive  .

Step-by-step explanation:

10 to the power of 2 is 20 and - + - =+ . is you add them together its 40 .

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Phantasy [73]

Answer:

ΔABC≅ΔDEC by AAS

Step-by-step explanation:

You can use the AAS method of congruency.

Since you already have <BAC and <EDC congruent to eachother, and sides BC and EC congruent to each other, you only need that one remaining angle in between. <ACB can be proven congruent to <DCE by the Vertical Angles Theorem, and that gives you the AAS you need to prove that these two triangles are congruent

Hope this helped.

5 0
2 years ago
$10,788 per dozen, find for EACH computer (a) dollar markup, (b) percent markup on cost, and (c) percent markup on selling price
swat32
It’s A dollar markup
5 0
3 years ago
Can someone help me ​
algol [13]

Answer:

A)310.18g/mol

B)84.9947g/mol

C)108.01 g/mol

d)159.7g /mole(Approx)

e)Coc12 g/mol

f) A1(OH)3 g/mol

g)83.9949 g/mol

h)197.9 g/mol

i)18.01529 g/mol

Step-by-step explanation:

Hope u happy with my answer...

please mark me as brainlest

7 0
3 years ago
Three more than four times a number is 15
vodka [1.7K]
You can model this with the equation 4x+3=15 since it is a number (x) times 4 with 3 added and equals 15.
Subtract 3 from both sides
4x=12
Divide both sides by 4
x=3
7 0
3 years ago
Read 2 more answers
I need help with this
mr_godi [17]
Area of each piece of paper = 8 1/2 x 11 = 17/2 x 11 = 187/2

The greatest number of possible pieces of paper = [1000 ÷ 187/2] = [1000 x 2/187] = [2000/187] = 10
4 0
3 years ago
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