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Alex787 [66]
3 years ago
11

Given f(x) = | – 5 – 4x| ,find the following:

Mathematics
2 answers:
jasenka [17]3 years ago
6 0

Answer:

f(10) = 35 \\  \\ f( - 11) = 39 \\  \\ f(12) = 53 \\  \\ f(2) = 13

Step-by-step explanation:

f(x)  =  | - 5 - 4x|

To solve for the following substitute the value of x in the brackets into the above formula and solve for the value of x

<u>NB</u><u>:</u><u> </u> Absolute value of a negative number is the same number but positive.

So we have

f( - 10) =  | - 5 - 4( - 10)|  \\  =  | - 5 + 40|  = 35 \\  \\ f( - 11) =  | - 5 - 4( - 11)|  \\  =  | - 5 + 44|  = 39 \\  \\ f(12) =  | - 5 - 4(12)|  \\  =  | - 5 - 48|   \\  =  | - 53|  = 53 \\  \\ f(2) =  | - 5 - 4(2)|  \\  =  | - 5 - 8|  =  | - 13|  \\  = 13

Hope this helps you

mamaluj [8]3 years ago
6 0

Answer:

f(-10)=35

f(-11)=39

f(12)=53

f(2)=13

plz put brainliest

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Using the mean, median and mode we can assume that a good prediction for her height would be 55 inches.

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3 years ago
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=====================================

Explanation:

We can only have a right triangle if and only if a^2+b^2 = c^2 is a true equation. The 'c' is the longest side, aka hypotenuse. The legs 'a' and 'b' can be in any order you want.

-----------

For choice A,

a = 2

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c = sqrt(10)

So,

a^2+b^2 = 2^2+3^2 = 4+9 = 13

but

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-----------

Checking choice B

a = 3

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Square each equation

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We can see that

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which is exactly equal to c^2 above. This confirms the answer.

-----------

Let's check choice C

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a^2 = 25, b^2 = 64, c^2 = 144

So,

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3 years ago
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Step-by-step explanation:

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