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3 years ago

A line contains the points (-4, 1) and (4, 6). What is the slope of the line?

Mathematics

1 answer:

Leno4ka [110]3 years ago

5 0

Answer:

m=5/8

Step-by-step explanation:

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Kate can read 12 pages in 8 minutes. How many minutes will it take her to read 30 pages? Write a proportion to this problem.

Shtirlitz [24]

Answer:

12/8 = 30/x ... x =20minutes

Step-by-step explanation:

3 0

3 years ago

Find the 8th term of the G.P 9,3,1,

son4ous [18]

Answer:

a=9 , d=6 n=8

a+(n-1)d = an

9+(8-1)6 = an

9+7×6 = an

9+42 = an

51 = an

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3 years ago

Help! I'm not sure how to set this up. Here is the question; Faye paid $16.00 for a pair of shorts that were 20% off. What was t

IrinaVladis [17]

80/100*n=16

80n=1600

n=1600/80=160/8=20

---------------------------------------

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6 0

4 years ago

Read 2 more answers

What is the side length, in inches, of the pets

tatiyna

Candy draws a square design with a side length of x inches for the window at the pet shop. She takes the design to the printer and asks for a sign that has an area of 16x2 – 40x + 25 square inches. What is the side length, in inches, of the pet shop sign?

Answer:

the length of the sign is $4x-5$ inches

Step-by-step explanation:

Given

Area of the square of design = $16x^{2} -40x+25$

First we find the roots of equation $16x^{2} -40x+25=0$

The roots of the quadratic equation $ax^{2} +bx^{2} +c=0$ are given by

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

where $a=16, b=-40, c=25$

$x=\frac{40\pm\sqrt{(-40)^2-4\times 16\times 25}}{2\times 16}$

$x=\frac{40\pm\sqrt{1600-1600}}{32}$

$x=\frac{40\pm\sqrt{0}}{32}$

$x=\frac{40}{32}$

$x=\frac{5}{4}$

$4x=5\\4x-5=0$

That is, the factors of the polynomial $16x^{2} -40x+25$ are $4x-5$ and $4x-5$ .

So, Area of the square design = $16x^{2} -40x+25$ = $(4x-5)^{2}$

Area of a square = Length^2

Thus, the length of the sign is $4x-5$ inches

7 0

3 years ago

2. The absolute value of -8 is 8.

liraira [26]

2. The absolute value of -8 is 8. True
3. An isosceles triangle has three congruent sides.
Nope. It has two

4. The cosine is the ratio between the length of the opposite leg to the length of the hypotenuse.
I have no idea.

5. The boiling point of water is 212°C.
true

6.
The expression 28xyz has 4 terms.
true

7.
Shapes that have the same size and shape are said to be similar.
false

8.
The points where the sides of a polygon meet are called the vertexes.
true

9. A heptagon is a seven-sided polygon.
true (hexagon)

10.
An acute angle has more than 90° but less than 180°.
true

8 0

3 years ago