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adoni [48]
3 years ago
9

Can you answer this please

Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0

Answer:

DE = 15 cm, AB = 6 cm

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal.

(a)

\frac{DE}{BC} = \frac{CE}{AC} , substitute values

\frac{DE}{5} = \frac{24}{8} = 3 ( multiply both sides by 5 to clear the fraction )

DE = 15 cm

(b)

\frac{AB}{CD} = \frac{AC}{CE} , substitute values

\frac{AB}{18} = \frac{8}{24} ( cross- multiply )

24AB = 144 ( divide both sides by 24 )

AB = 6 cm

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gayaneshka [121]

Answer:

B.

Step-by-step explanation:

A parameter is a summary measure computed to describe a characteristic of the population  and it involves the measurement  of all in the population numerically/quantitatively. e.g  Average of all the values measured in the population

A statistic is a measurement based on sample observations.

Examples of statistics constructed from a random sample : [ X_{1}.....X_{n}

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5 0
3 years ago
decide whether enough information is given to prove that the triangle is congruent using the SAS congruence theorem. if so, writ
Paladinen [302]

Answer:

Step-by-step explanation:

Given:

ΔCAD and ΔCBD

∠A ≅∠B (Angle)

AD ≅BD (Side)

From the graph we see that

CD≅CD (Side)

because of reflexive propriety ( a line segment is congruent with itself)

If you put in order those congruencies we have SSA witch does NOT prove congruence.

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8 0
3 years ago
How many solutions does the system have? y=-5x-1 y=-5x+7
vesna_86 [32]

Answer:

Step-by-step explanation:

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y = -5x - 1......slope here is -5 and y int is -1

y = -5x + 7....slope here is -5 and y int is 7

learn these....it really helps

if the slopes are the same, but the y int different, there is no solution because ur lines are parallel

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8 0
3 years ago
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kolbaska11 [484]

Answer:

B. TH

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TH  is an element in the sample space for first rolling a die and then tossing a coin.

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8 0
3 years ago
What is 45% of 36 feet
marta [7]
100% of 36 ft= 36 ft
50% of 36 ft= 18 ft
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4 0
3 years ago
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