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Cerrena [4.2K]
3 years ago
9

Which of the following expressions is 8x + 16 not equivalent

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
5 0

10x-2x-20+4 is incorrect

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Factor the polynomial 8k^2 +80k +200
blondinia [14]
<h3>Solution:</h3>

8 {k}^{2}  + 80k + 200 \\  = 8( {k}^{2}  + 10k + 25) \\  = 8  [{k}^{2}  + 2(k)(5) +  ({5})^{2} ] \\  = 8( k + 5) ^{2}

<h3>Answer:</h3>

8( k + 5) ^{2}

<h3>Hope it helps..</h3>

ray4918 here to help

6 0
2 years ago
Alexis recieved an 85,89,92on three tests.How many points does she need to score on her next test in order to have an average of
Vladimir [108]
94

(85+89+92+x)/4 = 90

(266+x)/4 = 90
(Multiply by 4 on each side to get rid of it)

266+x=360
(subtract 266 from each side)

x = 94


5 0
3 years ago
Read 2 more answers
What is the surface area? I need help help
yarga [219]

Surface Area=2400

Step-by-step explanation:

To find the surface area we need to use this formula: Surface Area=6a^2

Where a is the side lengths that are being provided by the cube, now we plug in 20 as a into the formula.

Surface Area=6(20)^2

Surface Area=6(400)

Surface Area=2,400

Hope I helped, have a nice day :)

4 0
3 years ago
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A rally car race course covers 515.97 miles. The winning car completed the course in 6.5 hours. What was the average speed of th
evablogger [386]

Answer:

79.38 miles per hour

Step-by-step explanation:

average speed =  miles covered / hours

= 515.97 / 6.5

=  79.38

4 0
3 years ago
Read 2 more answers
Rational numbers to -17/10
enyata [817]

Answer:

-17/10 is 1.7 is a rational number

Step-by-step explanation:

In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number. ... Moreover, any repeating or terminating decimal represents a rational number.

6 0
3 years ago
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