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3 years ago

Find the slope of a line through (-8,1) and(7,-1)

Mathematics

1 answer:

zlopas [31]3 years ago

4 0

Slope = (-1 -1)/(7 +8) = -2/15

answer
slope = -2/15

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Graphing how can graphing help solve a problem involving ratios

Alexandra [31]

If you have a ratio like 1 yard for 3 feet you can graph that to get a better understanding of size

4 0

4 years ago

A segment of length 94 cm has been rotated d degrees around a center 0. What is the length of the rotated segment? How do you kn

Gekata [30.6K]

Answer:

Length of rotated segment = 94 cm

Step-by-step explanation:

Rotation is transformation of a figure or a segment about a center which rotates the figure or segment about the center with the angle of rotation.

Rotation is that type of transformation in which the image and pre-image are congruent. This means that rotation has no effect on shape and size of figure or segment and thus, the shape and size of the figure or segment remains same after rotation.

It is given that a segment of length 94 cm is rotated $d$ degrees around a center $O$ .

The rotation will have no effect on size of the segment as stated above.

Thus, the segment after rotation will still measure 94 cm.

8 0

4 years ago

The radius of a cylindrical gift box is (2x+3) inches. The height of the gift box is three times the radius. What is the surfa

Feliz [49]

The formula for surface area of a cylinder is:2 $A=2\pi rh + 2\pi r^{2}$
So, to solve this, we plug in what we know and solve
$A=2\pi (2x + 3)(3(2x + 3)) + 2\pi (2x + 3)^{2}$
$A=6\pi (4x^{2}+12x+9) + 2\pi (4x^{2}+12x+9)$
$A=24x^{2}\pi+72x\pi+54\pi + 8x^{2}\pi+24x\pi+18\pi$
$A=32x^{2}\pi+96x\pi+70\pi$
This is as far as we can go, because we do not know the value of x. If we did, we could solve for the surface area

3 0

3 years ago

if a pizza with a diameter of 12 inches costs $10.99, based on area, how much should a 15-inch pizza cost

Mashutka [201]

$10.99/12=A
then
A*15=$pizza cost

4 0

3 years ago

CAN YOU HELP WITH THIS ONE QUESTION , JUST TRYING TO GET BACK ON HONOR ROLL !

Ivanshal [37]

Answer:

B. TRUE.

(3, 2) is the intersection point of the graphs of

x + y = 5 and x - y = 1.

Step-by-step explanation:

Option B is TRUE because intersection point should satisfy both the equation

and in option be it comes true.

i.e x = 3 and y = 2 we have

3 + 2 = 5 and 3 - 2 = 1

5 = 5 and 1 = 1

Hence TRUE

(3, 2) is the intersection point of the graphs of

3x + 2y = 5 and 3x - 2y = 1.

i.e x = 3 and y = 2 we have

3×3 + 2×2 = 5 and 3×3 - 2×2 = 1

13 ≠ 5 and 5 ≠ 1

Hence FALSE

(5, 1) is the intersection point of the graphs of

3x + 2y = 5 and 3x - 2y = 1.

i.e x = 5 and y = 1 we have

3×5 + 2×3 = 5 and 3×5 - 2×3 = 1

21 ≠ 5 and 9 ≠ 1

Hence FALSE

(5, 1) is the intersection point of the graphs of

x + y = 5 and x - y = 1.

i.e x = 5 and y = 1 we have

5 + 1 = 5 and 5 - 1 = 1

6 ≠ 5 and 4 ≠ 1

Hence FALSE

6 0

3 years ago