3 years ago

Find f(-3) if f(x)=x^2

Mathematics

2 answers:

Stells [14]3 years ago

6 0

Answer:

f(-3) = 9

Step-by-step explanation:

find f(-3) if f(x)=x^2

input -3 for x in the equation

f(-3 )= -3^2

f(-3 )= 9

dalvyx [7]3 years ago

4 0

Answer:

-3f=fx=x^²

(-3fsquaredx=3 ^squared)

Step-by-step explanation:

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The diagonal of a rectangular swimming pool measures 29 yards. If the length of the pool is 25 yards, which measurement is close

nirvana33 [79]

Answer:

Width of the pool = 15 yards

Step-by-step explanation:

Given that:

Length of diagonal of swimming pool = 29 yards

Length of the pool = 25 yards

Let,

w be the width.

This will form a right angled triangle where the diagonal will be hypotenuse.

Using Pythagorean theorem;

$(25)^2+(w)^2 = (29)^2\\625+w^2=841\\w^2= 841 - 625\\w^2 = 216$

Taking square root on both sides

$\sqrt{w^2}=\sqrt{216}\\w=14.70$

Rounding off to nearest whole number

w = 15 yards

Hence,

Width of the pool = 15 yards

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Lelechka [254]

Answer:

Step-by-step explanation:

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