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steposvetlana [31]
3 years ago
10

Halp me again plez . . . . . . . . . . .

Mathematics
2 answers:
Katena32 [7]3 years ago
6 0

Answer:

B?

good luckkkkkkkkkkkk

Alika [10]3 years ago
4 0

Cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

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What is the correct answer in significant figures for the calculation of a volume (in mL) with measured numbers 28.58 / 16 X 8.0
juin [17]

Answer: 0.2223mL

Step-by-step explanation:

Since the maximum significant figure in question is 4sf, our answer will be converted to 4sf.

Calculating 28.58/16×8.02 = 0.222377

= 0.2223mL to 4 significant figures

4 0
3 years ago
A person who is 1.5 meters tall casts a shadow that is 8 meters long. The distance along the ground from the person (N) to the f
Elena-2011 [213]
AA Theorem: To show two triangles are similar, it is sufficient to show that two angles of one triangle are congruent (equal) to two angles of the other triangle. All three triangles have a right angle and they all share the common angle at point S.

Flagpole is 32 meters from point S: so 1.5/8 = x/32 where x is FG
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48 = 8x
x = 6 meters

building is a total of 240 meters from point S, so: 1.5/8 = x / 240 where x is BD
cross-multiply: 240 • 1.5 = 8x
360 = 8x
<span>x = 45 meters</span>
7 0
3 years ago
Help guys pls 22x²+13x+1​
myrzilka [38]

Answer:

(11x+1)(2x+1)

8 0
3 years ago
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#8 Tessa has a plan for a set of stairs made of concrete, as shown. Each stair is 1 point the same width and height and is talle
Afina-wow [57]

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Step-by-step explanation:

6 0
2 years ago
(x 4 - 81) (x - 3) . write answers in descending power of x. (division)
Zinaida [17]

Answer:

  x^3+3x^2+9x+27

Step-by-step explanation:

\dfrac{x^4-81}{x-3}=\dfrac{(x^2-9)(x^2+9)}{x-3}=\dfrac{(x-3)(x+3)(x^2+9)}{(x-3)}\\\\=(x+3)(x^2+9)=x^3+3x^2+9x+27

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The factoring of the difference of squares is used (twice):

  a² -b² = (a -b)(a +b)

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3 years ago
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