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PolarNik [594]
3 years ago
7

help quick! if BC is parallel to DE, then all of the following are equivalent to each other except...

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0
Answer is letter c. (CE/AC)
horrorfan [7]3 years ago
7 0

Answer:

Option 3 is correct.

Step-by-step explanation:

Given ΔABC~ΔADE

If BC||DE, then we have to tell that which option is not equivalent.

If two triangles are similar then the corresponding sides of two triangles are in same proportion.

⇒ \frac{AD}{AB}=\frac{DE}{BC}=\frac{AE}{AC}

CE side is not the part of any of triangle ABC and ADE which includes in option 3.

Hence, \frac{CE}{AC} is not equivalent to rest three fraction.

Option 3 is correct.

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Find the functional values g (-3), g (0), and g (5) for the compound function.
Zinaida [17]

Answer:

g(-3)=7

g(0)=7

g(5)=\dfrac15

Step-by-step explanation:

g(x) =\begin{cases}7 & \text{if } x \leq 0 \\ \\\dfrac{1}{x} & \text{if } x > 0\end{cases}

This means:

  • when x is equal to zero or less than zero, g(x) will always be 7.
  • when x is more than zero, g(x) is \frac{1}{x}

\implies g(-3)=7

\implies g(0)=7

\implies g(5)=\dfrac15

5 0
2 years ago
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Math Homework help please!
Setler [38]
The answer should be (exact number- 93/10) (decimal form- 9.3) (mixed number- 9 3/10)
sorry if i’m incorrect
5 0
3 years ago
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Pls help
KATRIN_1 [288]

Answer:

169.04 in² (nearest hundredth)

Step-by-step explanation:

Surface area of a cone = \pir² + \pirl

(where r = radius of the base and l = slant height)

Given slant height l = 10 and surface area = 188.5

Surface area  = \pir² + \pirl

188.5 = \pir² + 10\pir

\pir² + 10\pir - 188.5 = 0

r = \frac{-10\pi +\sqrt{(10\pi )^2-(4\times\pi \times-188.5)} }{2\pi } = 4.219621117...

Volume of a cone = (1/3)\pir²h

(where r = radius of the base and h = height)

We need to find an expression for h in terms of l using Pythagoras' Theorem a² + b² = c², where a = radius, b = height and c = slant height

r² + h² = l²

h² = l² - r²

h = √(l² - r²)

Therefore, substituting found expression for h:

volume of a cone = (1/3)\pir²√(l² - r²)

Given slant height l = 10 and r = 4.219621117...

volume = 169.0431969... = 169.04 in² (nearest hundredth)

5 0
2 years ago
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How can I solve this?
jok3333 [9.3K]

The 3 inside angles need to equal 180 degrees.

Angle K is given as 48 degrees.

Angle M would be 90 degrees.

Angle J = 180 - 90 - 48 = 42

Angle J = 42 degrees

3 0
3 years ago
Is 3 1/2 cups more or less than 1 liter? Note: 1 cup is about 236.6 milliliters
Evgesh-ka [11]
Less by far because 3.5 cups would be less than half

6 0
4 years ago
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