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Andreyy89
3 years ago
8

Find the value of x. A 2 B 4.8 C 6 D 6.4

Mathematics
2 answers:
Alex17521 [72]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Δ DCA and Δ ABE are similar, thus the ratios of corresponding sides are equal, that is

\frac{CA}{BE} = \frac{DA}{AE} , substitute values

\frac{18}{10} = \frac{x+8}{8} ( cross- multiply )

10(x + 8) = 144 ( divide both sides by 10 )

x + 8 = 14.4 ( subtract 8 from both sides )

x = 6.4 → D

Gwar [14]3 years ago
5 0
A A A A A A A A A a a a a a a a a a a a
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Answer:

no real answer

Step-by-step explanation:

distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r

then we have 7-3r=-8-3r

from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.

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8 0
2 years ago
A new television set was recently purchased for the common room in a Residence Hall for $408.00 including tax. If the tax rate i
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399.84

Step-by-step explanation:

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6 0
3 years ago
Evaluate the expression 2b to the third power+ 5 when b=5
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1005

Step-by-step explanation:

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7 0
3 years ago
What is the value for y?<br> Enter your answer in the box.
lapo4ka [179]

Answer:

y = 14

Step-by-step explanation:

The sum of the angles in a triangle add to 180 degrees

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We know that 2x = 50 since they are the base angles of sides that have the same length, they must be the same

50 + 50 + 5y+10 =180

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110 + 5y =180

Subtract 110 from each side

110+5y-110 = 180-110

5y = 70

Divide each side by 5

5y/5 =70/5

y = 14

6 0
3 years ago
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