3 years ago

Which expression is equivalent to SquareRoot -80

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

Answer:

4√5i

i represents imaginary number

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F(x) = 8 – 3x<br>Evaluate f(9)

Readme [11.4K]

F(x) = 8 - 3x

f(9) = 8 - 3(9)
= 8 - 27
= -19

hope this helps!

5 0

2 years ago

I need help with finding out both of the answers to these questions.

Semmy [17]

Answer:

6). unknown side is 6.23m

7). angle is 26.58 degrees

Step-by-step explanation:

you must use the Pythagoras theorem formula to find the unknown side if you have only two sides

7 0

3 years ago

Read 2 more answers

Given point A (3, 8) and point B (-5, 1). Find the following: a.) The coordinates of the midpoint of segment AB. Write your answ

ss7ja [257]

Answer:

Mid point:

$= ( \frac{3 + - 5}{2} , \: \frac{1 + 8}{2} ) \\ = ( - 1, \: 4.5)$

distance:

$= \sqrt{ {( - 5 - 3)}^{2} + {(1 - 8)}^{2} } \\ = \sqrt{64 + 49} \\ = \sqrt{113} \\ = 10.6 \: units$

slope:

$= \frac{1 - 8}{ - 5 - 3} \\ = \frac{ - 7}{ - 8} \\ = \frac{7}{8}$

8 0

3 years ago

If f(x)=2x-3/5 , which of the following is the inverse of f(x)?

grigory [225]

Answer:

(5x+3)/2

Step-by-step explanation:

f(x)=(2x-3)/5

f(x)=y

y=(2x-3)/5

interchanging role of x and y

x=(2y-3)/5

5x=2y-3

5x+3=2y

y=(5x+3)/2

the inverse if f(x) = (5x+3)/2

5 0

3 years ago

Your work or words should justify your answer (explain how you know). As a math teacher, Josie frequently makes photocopies of f

Doss [256]

Answer:

Yes, because by dividing x by his equivalent y, you find a constant of proportionality being 10.

x / y = 10

Step-by-step explanation:

20 / 2 = 10

50 / 5 =10

60 / 6 = 10

70 / 7 = 10

7 0

2 years ago