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lara [203]
3 years ago
8

Does anyone know ? what is the value of k

Mathematics
2 answers:
Goshia [24]3 years ago
8 0
Good answer is -1:) have a good day;)

blagie [28]3 years ago
8 0
10⁻³ * 10 * 10^(k) = 10⁻³

10 ⁻³ ⁺ ¹ ⁺ ^{k} = <span>10⁻³

</span>10 ⁻² ⁺ ^{k}= <span>10⁻³
</span>
Since the bases are the same, we can compare the powers.

-2 + k = -3

k = -3 + 2

k = 2 - 3

k = -1
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Answer:

A. 36%.

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Total number of pets = 24 + 18 + 5 + 3

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= 36%.

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Answer:

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Step-by-step explanation:

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Sonbull [250]

Answer:

x=\boxed{6.6}

\overline{\sf DE}=\boxed{13.2}\:\:\sf units

Step-by-step explanation:

<u>Geometric Mean Theorem - Altitude Rule</u>

The <u>altitude</u> drawn from the vertex of the right angle perpendicular to the hypotenuse separates the <u>hypotenuse</u> into <u>two segments</u>.  The ratio of one segment to the altitude is equal to the ratio of the altitude to the other segment:

\sf \dfrac{segment\:1}{altitude}=\dfrac{altitude}{segment\:2}

From inspection of the given diagram:

  • altitude = FD = 9
  • segment 1 = CD = 5
  • segment 2 = DE = 2x+3

\begin{aligned}\sf \dfrac{segment\:1}{altitude} & = \sf \dfrac{altitude}{segment\:2}\\\\\implies \dfrac{5}{9} & = \dfrac{9}{2x+3}\\\\5(2x+3) & = 81\\\\10x+15 & = 81\\\\10x & = 66\\\\ \implies x & = 6.6\end{aligned}

Substitute the found value of x into the expression for DE:

\begin{aligned}\sf \overline{DE} & = 2x+3\\\implies \sf \overline{DE} & = 2(6.6)+3\\& = 13.2+3\\& =16.2\:\: \sf units\end{aligned}

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2 years ago
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Suzanne bought a sweater at the sale price of $29.99. the original cost of the seater was $49.99. what percent represents the di
Nikitich [7]

Answer:

= 40%

Step-by-step explanation:

Original price = 100%

Discount = Op - Np = $49.99 - $29.99 = $20

If $49.99 = 100%

What about $20 = ?

= (20 x 100) ÷ 49.99

= 2000 ÷ 49.99

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3 years ago
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In the figure, use similar triangles and the fact that corresponding sides are proportional to find the missing length.​
Phoenix [80]

Answer:

  • <u><em>The missing length, x, is equal to 7 m.</em></u>

Explanation:

In the figure, the two triangles are similar because they show two pairs of congruent angles and one pair of different sides.

  • The two upper vertices are marked each with a line which indicates that they are congruent, i.e. they have the same measure.

  • Also, the small squares shown in each of the bases indicate that those two angles are right, i.e. they measure 90°.

  • Since the two sides adjacent to the right angles have different lengths, the triangles are not congruent but similar.

By similarity, you can state that the corresponding parts keep the same ratio. Thus:

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  • x = 7 m (simplify dividing by 3)

         Answer x = 7 m

5 0
4 years ago
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