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3 years ago

Please help me I'm so done with math

Mathematics

1 answer:

Wewaii [24]3 years ago

7 0

This problem is easy the correct choice for it will be B.

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Nick paid 2.94 in sales tax on an item that cost $42.00 at the rate how much he pay in sales tax on an item that cost $58.00 bef

ruslelena [56]

$2.93/$42= about 7% tax
$58*7%= $<span>4.06 in tax</span>

4 0

3 years ago

Find an equation of the plane with x-intercept a, y-intercept b, and z-intercept c. What is the distance between the origin and

Elenna [48]

Answer:

The equation is:

(1/a)x + (1/b)y + (1/c)z = 1

Step-by-step explanation:

The direction vector between the points (a, 0, 0) and (0, b, 0) is given as:

<0 - a, b - 0, 0 - 0>

<-a, b, 0> .....................(1)

The direction vector between (0, 0, c) and (0, b, 0) is given as:

<0 - 0, b - 0, 0 - c>

= <0, b, -c> .....................(2)

To obtain the direction vector that is normal to the surface of the plane, we take the cross product of (1) and (2).

Doing this, we have:

<-a, b, 0> × <0, b, -c> = <-bc, -ac, -ab>

To find the scalar equation of the plane we can use any of the points that we know. Using (0, b, 0), we have:

(-bc)x + (-ac)y + (-ab)z = (-bc)0 + (-ac)b + (-ab)0

(bc)x + (ac)y + (ab)z = (ac)b

Dividing both sides by abc, we have:

(1/a)x + (1/b)y + (1/c)z = 1

3 0

3 years ago

The parabola x = y2 - 9 opens:

asambeis [7]

Answer:

To the RIGHT

Step-by-step explanation:

The parabola will open right if the y^2 is positive and will open left if the y^2 is negative.

3 0

3 years ago

Read 2 more answers

You want to rent movies online, The new service charges a sign up fee of $10, Then,

gavmur [86]

Answer:

y=12x+10 or f(x)=12x+10

Step-by-step explanation:

If it costs $12 per month to rent as many movies as you want, then that can be represented as 12x

Since $10 is a flat fee and doesn't change, this gets added seperately to 12x

Thus, the final equation is y=12x+10 or f(x)=12x+10

Hope this helped!

3 0

3 years ago

Read 2 more answers

Marisa wants to buy a home in Atlanta with a 30-year mortgage that has an annual interest rate of 4.9%. The house she wants is $

Lady bird [3.3K]

Given :

Marisa wants to buy a home in Atlanta with a 30-year mortgage that has an annual interest rate of 4.9%.

The house she wants is $250,000 and she will make a $55,000 down payment and borrow the remainder.

To Find :

What is Marisa's monthly mortgage payment to the nearest dollar.

Solution :

Money remains, m = $( 250000 - 55000 ) = $195000 .

Total price after interest, T = m( 1 + rt )

T = 195000×( 1 + 0.049×1)

T = $204555

Monthly payment,

$M = \dfrac{m}{12}\\\\M = \dfrac{204555}{12}\\\\M =\$ 17046.25$

Therefore, monthly payment is $17046.25 .

Hence, this is the required solution.

3 0

3 years ago