3 years ago

Find answers to 7 and 8 I don't know what to do for them

Mathematics

1 answer:

mel-nik [20]3 years ago

4 0

It might mean something like f(x) = 1/2 on 7. Something like that?

You might be interested in

Can someone help me answer this?

mart [117]

Answer:

x = 40 , y = 70

Step-by-step explanation:

y = 70°

x° = 180° - 2 × 70° = 40°

5 0

3 years ago

Read 2 more answers

Please help :( Im desperate

ki77a [65]

Answer:

(2,4)

Step-by-step explanation:

When graphed the lines intersect at point (2,4) which is the solution.

8 0

2 years ago

How do you solve each system of equations?

stiv31 [10]

Answer:

$x=1,y=3,z=1$

Step-by-step explanation:

$4x-4y+4z=-4$

$4x=-4+4y-4z$

$x=-1+y-z$

Substitute $x=-1+y-z$ into second equation:

$4\left(-1+y-z\right)+y-2z=5$

$-4+4y-4z+y-2z=5$

$5y-6z-4=5$

$y=\frac{6z+9}{5}$

Substitute $x=-1+y-z$ and $y=\frac{6z+9}{5}$ into the third equation:

$\frac{-41z-54}{5}+3=-16$

$-41z-54=-95$

$z=1$

Substitute $z=1$ into $y=\frac{6z+9}{5}$ :

$y=3$

Plug in y and z values into $x=-1+y-z$ :

$x=1$

4 0

3 years ago

Ellen Newman has an income of $18,150 and claims 5 exemptions. The amount allowed for each exemption is $1,000. Her state tax is

Vanyuwa [196]

State tax is computed by first subtracting the amount of exemptions (5*$1000=$5000) from annual income and then multiplying it by the state tax.

($18150-$5000)*5%= $657.50

3 0

3 years ago

17.5% commission 1,500

snow_tiger [21]

Answer:

i think you have to take the

17.5

------ × 1500

100

Step-by-step explanation:

i guess.

3 0

3 years ago