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3 years ago

PLEASE HURRY :,) WILL GIVE BRAINLEST

Mathematics

2 answers:

GrogVix [38]3 years ago

7 0

B. (-40, -30) because point r is at that point which is a distance of 20 units from point Q.

Afina-wow [57]3 years ago

4 0

-40, x and -30, y it’s prolly wrong but I’m only doing this cause I’m bored

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2. A company's manager estimated that the cost C, in dollars, of producing n items is = 7n + 350. The company

Vanyuwa [196]

Answer:

Step-by-step explanation:

the answer is d because you have to multiply the 7 x 12 than do n>84 which is your answer because you cant do anything with it.

4 0

3 years ago

I need to know the answer ASAP thank you

ElenaW [278]

Answer:

Step-by-step explanation:

3 0

3 years ago

What is the surface area of this right triangular prism ? round your answer to the nearest tenth.

velikii [3]

Answer:

78 m^2 Unless I got some of the measurements wrong, kinda hard to see them.

Step-by-step explanation:

The surface area will be the sum of the area of each face. so lets see, there is the base (in this orientation) which is a 8x3 rectangle it looks like.

then two trianglular sides with both having a base of 8 and height of 3

then two "roof" pieceswhich are rectangles again, one side of 3 and the other 5.

Now we add each face up.

rectangular base = 3x8 = 24

2 triangular sides = 2(.5*8*3) = 24

2 rectangular roof pieces = 2(5*3) = 30

Now add it all up

24+24+30 = 78

5 0

3 years ago

Read 2 more answers

What are the zeros of the quadratic function?<br> y = x^2 - 2x - 15

Pie

Answer:

$x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}$

Step-by-step explanation:

$-> 0=2x^2-2x-15$

-zeros means the solution aka x intercept, meaning y=0

$x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:2\left(-15\right)}}{2\cdot \:2}$

=> according to quadratic formula

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

where $ax^2+bx+c=0$

=> $x_{1,\:2}=\frac{-\left(-2\right)\pm \:2\sqrt{31}}{2\cdot \:2}$

simplify

$x_1=\frac{-\left(-2\right)+2\sqrt{31}}{2\cdot \:2},\:x_2=\frac{-\left(-2\right)-2\sqrt{31}}{2\cdot \:2}$

$x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}$

Cannot simplify farther

3 0

3 years ago

Tonya paid $20 for a skirt that was markdown 50% what was the original price of the skirt

iren [92.7K]

I'm guessing the original price of the skirt was $40 because 40/2=20.

Hope this helps

4 0

3 years ago