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3 years ago

The temperature is 8° F. As a cold front move in, the temperature drops

Mathematics

1 answer:

Sergio039 [100]3 years ago

6 0

-10 F

Subtract 6 from 8 three times for each hour, and you get -10 F.

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SOMEBODY HELP ME WITH THESE PLEASE! I really need the help like NOW PLS!

snow_lady [41]

93. $g(n) = n - 4$
$f(n) = 2n^2 - 5n$

then $g(n) +f(n) = (n-4) + (2n^2 - 5n)$
                                $= n - 4 + 2n^2 - 5n$
                                $= 2n^2 -5n + n - 4$
                                $= 2n^2 - 4n -4$

95. $f(n) = -n+3$
      $g(n) = n^3 + 3n$
Then $f(n) . g(n) = (-n+3) . (n^3 + 3n)$
                                 $= -n^4 + 3n^3 - 3n^2 + 9n$

97. $f(x) = 3x+1$
$g(x) = 2x$
For finding f(g(x)) we will plugin value of g(x) in place of x in f(x).
$f(g(x)) = 3*(2x) + 1$
                  $= 6x + 1$

99. $f(n) = n - 3$
$g(n) = 2n^2 - 3n$

$g(-7) = 2*(-7)^2 - 3 * (-7) = 2* 49 + 21 = 98 + 21 = 119$
$f(g(-7)) = 119 - 3 = 116$

4 0

4 years ago

Please just help me fill in the blanks

Vesna [10]

Answer:

Complementary Angles: equal 90 degrees

Supplementary Angles: equals 360 degrees

Step-by-step explanation:

Complementary Angles:

65+25=90

78+12=90

43+47=90

Supplementary Angles:

54+306=360

113+247=360

148+212=360

88+272=360

Hope this helps

7 0

4 years ago

Read 2 more answers

PLEASE HELP!! :(

LenaWriter [7]

They would all make triangles.
The triangle inequality rule states that the sum of the lengths of each pair of sides must be greater than or equal to the third side.
If you test the two smaller lengths and it works than the other lengths will work.
27+36>45
10+24>26
18+22>28
20+21>31
28+45>53

3 0

3 years ago

Read 2 more answers

Someone help and please make sure the answer is right

ELEN [110]

Answer:

Its right

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is 15x^2+14x-8 factored