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3 years ago

Identify the segments that are parallel, if any, if ∠ADH≅∠ECK.

Mathematics

1 answer:

Dafna1 [17]3 years ago

3 0

9514 1404 393

Answer:

C. none of these

Step-by-step explanation:

The given information tells us ΔACD is isosceles, but gives no information about any lines that might conceivably be parallel.

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What are the first four terms of the sequence an=n2+4

Igoryamba

Step-by-step explanation:

Given formula

an = n² + 4

Now the first four terms of the sequence are

a1 = 1² + 4 = 5

a2 = 2² + 4 = 4 + 4 = 8

a3 = 3² + 4 = 9 + 4 = 13

a4 = 4² + 4 = 16 + 4 = 20

The terms are

5 , 8 , 13 and 20.

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3 years ago

Three runners recorded their times for the 40-yard dash

egoroff_w [7]

Answer:

The fastest runner is Alana because she had the least mean running time. The most consistent runner is Lorena because she had the least interquartile range value.

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3 years ago

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99x78<br> 123x56<br> 98x172<br> 38x900

yanalaym [24]

Answer:

99x78=7722

123x56=6888

98x172=16856

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Step-by-step explanation:

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2 years ago

Solve for x: x5 + x4 − 7x3 − 7x2 − 144x − 144 = 0

motikmotik

$x^5 + x^4 - 7x^3 - 7x^2 -144x - 144 = 0 \\x^4(x+1)-7x^2(x+1)-144(x+1)=0\\(x^4-7x^2-144)(x+1)=0\\\\x+1=0\Rightarrow x=-1\\\\x^4-7x^2-144=0\\x^4-16x^2+9x^2-144=0\\x^2(x^2-16)+9(x^2-16)=0\\(x^2+9)(x^2-16)=0\\(x^2+9)(x-4)(x+4)=0\\\\x^2+9=0\vee x-4=0 \vee x+4=0\\x=4 \vee x=-4\\\\x\in\{-4,-1,4\}$

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3 years ago

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Someone help me?????

ziro4ka [17]

Step-by-step explanation:

4. b 612 (72/100) x 850)

5. c. 275 (33/100) x 835

6. b. 39% (3.24 - 2.85) x100%)

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3 years ago