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2 years ago

Y = 3x y = -x + 4 write the question in coordinate form

Mathematics

1 answer:

postnew [5]2 years ago

3 0

Answer:

(x,y) (1,3)

Step-by-step explanation:

3x=-x+4

+x +x

4x=4

*divide/simply*

x=1

y=3(1)

y=3✓

y=-1+4

y=3 ✓

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Help please show work

BARSIC [14]

Answer:

ok first you do the small one. 13 * 5 * 1/2 = 32.5 then you do 35 *1/2=17.5. you then divide 32.5/17.5=1.86

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Given that f(x)=2x/3 evaluate f^-1(6)

abruzzese [7]

Answer:

Step-by-step explanation:

we know by definition that

$f^{-1}(f(x))=x\\\\f^{-1}(\frac{2x}{3})=x\\\\f^{-1}(x)=ax\\\\f^{-1}(\frac{2x}{3})=a(\frac{2x}{3})=x\\\\f^{-1}(x)=\frac{3x}{2}$

so now we evaluate

$f^{-1}(6)=\frac{3*6}{2}\\\\=3*3\\\\f^{-1}(6)=9$

and if we want to do an extra step

$f^{-1}(f(6))=6\\\\f^{-1}(\frac{2*6}{3})=f^{-1}(4)=\frac{3*4}{2}=6$

which works.

4 0

2 years ago

It has been estimated that a student’s final grade in a course decreases by 5 points for every 2 days absent from class. If a st

enyata [817]

Answer:

10 points

Step-by-step explanation:

per 2 days you lose 5 points. To get to 4 days you multiply 2 by 2 and get 4 and 5 by 2 and get 10. So per 4 days he loses 10 points.

5 0

3 years ago

Simplify:<br> 3(8) ° . (3) -2

jek_recluse [69]

3 x 8 = 24

3 x -2 = -6

reply if you this was wrong or you needed a different answer pls >:(

3 0

3 years ago

Reduce to simplest form.<br> -7/12 + 3/8<br> (They are fractions)

denpristay [2]

Answer:

-5/24

Step-by-step explanation:

You first change -7/12 to -14/24, and 3/8 to 9/24 so they have the same denominator. You then do -14/24 + 9/24. That will be the same as the opposite of the answer to 14/24 - 9/24.

14/24 - 9/24 = 5/24

-5/24

4 0

3 years ago