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3 years ago

11

How many 4-digit palindromes contain both the digits 1 and 2

1 answer:

guapka [62]3 years ago

3 0

4 digit palindromes must be of form abba, so being required that you use both numbers, you only have two: 1221 and 2112

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A triangle has a perimeter of 18 inches. If one side has length 8 inches, find the length of the shortest side if the other leng

aalyn [17]

$a,b,c-\ sides\ of\ triangle\\\\a+b+c=18\ inches\\\\a=8inch\\\\\frac{b}{c}=\frac{2}{3}\\\\3b=2c\ \ --->b=\frac{2c}{3}\\\\8+\frac{2c}{3}+c=18\ |*3\\\\24+2c+3c=54\\\\5c=54-24\\\\5c=30\\\\c=\frac{30}{5}=6\\\\Length\ of\ shorter\ side\ is\ equal\ to\ 6\ inches.$

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3 years ago

Explain whether the points (-13,4), (-7,3), (-1,2), (5,1). (11,0), (17, -1) represent the set of all the solutions for the

Nataly [62]

Answer:

ohh this is little bit hard

Step-by-step explanation:

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3 years ago

Pamela's boss rewards her hard work by telling her she is receiving a 12% raise. Pamela had been earning $15 per hour. After the

Maksim231197 [3]

It should be 16.8,
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2 years ago

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Tan(42)= x over 16<br> I need the answer and how ya got it pleasee

xz_007 [3.2K]

Answer:

14.40646471 =x

Step-by-step explanation:

tan (42) = x/16

Multiply each side by 16

16 tan 42 = x/16 *16

16 tan 42 = x

16 * .900404044 = x

14.40646471 =x

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3 years ago

If the sum of a term of an ap is 2n square + 5n then find the 4th term

zlopas [31]

Answer:

19

Step-by-step explanation

Let the sum of n terms of A.P. = Sn

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3 years ago

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