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klasskru [66]
3 years ago
7

Please please help me out

Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer:

26.6 m

Step-by-step explanation:

Given the figures are similar

linear ratio = a : b

area ratio = a² : b²

here

area ratio = 16 : 25, then

linear ratio = 4 : 5 ( square root of both area ratio parts )

let the perimeter of the larger figure be x, then by proportion

\frac{4}{21.3} = \frac{5}{x} ( cross- multiply )

4x = 106.5 ( divide both sides by 4 )

x ≈ 26.6

Hence perimeter of larger figure is approximately 26.6 m

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Determine the solubility for cuc2o4(s) in pure water. Ksp for is 2. 9 × 10^-8
Elena-2011 [213]

Based on the elements and charges in Copper (II) Oxalate, CuC₂O₄(s), the solubility in pure water is 1.7 x 10⁻⁴ M.

<h3>What is the solubility of Copper (II) Oxalate in pure water?</h3>

The solubility equilibrium (Ksp) is 2.9 x 10⁻⁸ so the solubility can be found as:

Ksp = [Cu²⁺] [C₂O₄²⁻]

Solving gives:

2.9 x 10⁻⁸ = S x S

S² = 2.9 x 10⁻⁸

S = 1.7 x 10⁻⁴ M

Find out more on solubility at brainly.com/question/23659342.

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3 0
2 years ago
Line segment GH is divided by point J in the ratio of 1:4. Endpoint G is at (7,5) and point J is at (10, 14).
wlad13 [49]

Answer:

(x2 , y2) = (22,50)

Step-by-step explanation:

Given:

m1 : m2 = 1:4

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(x2 , y2)

Computation:

X = (m1x2 + m2x1) / (m1+m2)

10 = [(1)(x2) + (4)(7)]/(1+4)

10 = [x2 + 28]/5

22 = x2

Y = (m1y2 + m2y1) / (m1+m2)

14 = [(1)(y2) + (4)(5)]/(1+4)

14 = [y2 + 20]/5

70 = y2 + 20

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7 0
3 years ago
−x=5<br> x =<br><br><br><br> wut is thi$
Vlada [557]

Answer:

x = -5

Step-by-step explanation:

-x = 5

*-1   *-1

-x * -1 = x

5 * -1 = -5

x = -5

5 0
3 years ago
Find the angle measure.<br><br> PLEASE EXPLAIN I NEED TO SHOW MY WORK
oksian1 [2.3K]

Answer:

135

Step-by-step explanation:

Because the two vertical lines are parallel

that answer your question?

3 0
3 years ago
Angles M and N are complementary. The measure of M is 27°. What is mN?
finlep [7]

Answer:

A. 63 degrees

Step-by-step explanation:

Complementary angles are angles that add up to 90 degrees. You can make an equation to solve for angle N:

27 + x = 90

rearrange the equation:

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4 0
2 years ago
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