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4 years ago

I need to know this one

Mathematics

1 answer:

larisa86 [58]4 years ago

7 0

I'm pretty sure it's reflection about the y axis, and then reflection about the x axis?

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Dharma and Jorge are looking at cell phone plans. A

riadik2000 [5.3K]

Answer:

Dharma and Jorge should purchase a group plan.

They could save $9.55

Step-by-step explanation:

A group plan will cost an average of $135.95 per month.

An individual plan will cost an average of $72.75 per month.

Two individual plans will cost an average of

$\$72.75\cdot 2=\$145.50$

per month.

Since $145.50 > $135.95, Dharma and Jorge should purchase a group plan.

They could save

$\$145.50-\$135.95=\$9.55$

4 0

3 years ago

6a. In King County the sales tax is 9.5%. What is the total tax collected (tax ONLY) on a purchase of $222.00? I WILL GIVE YOU B

soldier1979 [14.2K]

Answer:

21.09

Step-by-step explanation:

7 0

3 years ago

Write an equation of a line in point-slope and slope intercept form that passes through the point (1, -8) and is perpendicular t

prisoha [69]

Answer:

11y-2x= -90

Step-by-step explanation:

for the point (1,-8)

x=1 and y= -8

for the equation,

2x -4y= -11

x= -1/m

m= -1/x

x = -1/ (-11/2 )

m= 2/11

so for the equation,

y-y1= m(x- x1)

y- -8=2/11(x-1)

11(y+8)= 2(x-1)

11y +88= 2x-2

11y-2x= -90

3 0

3 years ago

Hat is the value of x in the equation 3 x minus 4 y equals 65, when y equals 4?

kobusy [5.1K]

Answer:

16.3 repeating

Step-by-step explanation:

3x-4(4)=65

3x-16=65

3x=65-16

3x=49

x=49/3

x=16.3 repeating

8 0

3 years ago

Find the distance between (3,-3) and (2,7)

yarga [219]

Answer:

$\sqrt{101} = D$

Step-by-step explanation:

Method #1

We can draw a <em>right triangle</em> on the graph upon where the points are located and use the Pythagorean Theorem:

${a}^{2} + {b}^{2} = {c}^{2}$

${1}^{2} + {10}^{2} = {c}^{2}$

$1 + 100 = {c}^{2}$

$101 = {c}^{2}$

$\sqrt{101} = c$

* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

_______________________________________________

Method #2

Or, we can use the Distance Formula:

$\sqrt{[-x_1 + x_2]^{2} + [-y_1 + y_2]^{2}} = D$

[2, 7] [3, −3]

$\sqrt{[-3 + 2]^{2} + [3 + 7]^{2}} = D$

$\sqrt{[-1]^{2} + 10^{2}} = D$

$\sqrt{1 + 100} = D$

$\sqrt{101} = D$

** You see? It does not matter which method you choose, as long as you are doing the work correctly.

I am delighted to assist you anytime.

5 0

3 years ago