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Inessa05 [86]
3 years ago
7

Find the slope and y-intercept of y=8x-7

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
5 0

\bf \begin{array}{|c|ll}\cline{1-1}\textit{slope-intercept form}\\\cline{1-1}\\y=\stackrel{slope}{m}x+\stackrel{y-intercept}{b}\\\\\cline{1-1}\end{array}~\hspace{2em} y=\stackrel{slope}{8}x\stackrel{y-intercept}{-7}~~\begin{cases}m=8\\y-intercept = (0, -7)\end{cases}

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There are 7 days in 1 week. How many days are there<br> in 4 weeks?
otez555 [7]

Answer:

28 days

Step-by-step explanation:

You multiply 7 by 4 for find the number of days in 4 weeks, since 1 week is 7 days: 7 × 4 = 28.

Hope this helps!

8 0
2 years ago
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A quadrilateral WXYZ has vertices W(3, −5), X(1, −3), Y(−1, −5), and Z(1, −7).
xxTIMURxx [149]

Therefore, the required vertices after rotation are W'(5,3), X'(3,1),Y'(5,-1) and Z'(7,1).

4 0
3 years ago
Given a cube with a volume of 36 cm3, what is the volume of a square pyramid that can fit perfectly inside the cube?
LUCKY_DIMON [66]
Hope you know that formula for volume of a cube is area of base time height 
and volume of a square pyramid is area of base time height divide 3 
- so in this your exercise case we know that area of cube is 36 cm^3 what is area of base time height 
- so this mean that the volume of a square pyramide what can fit perfectly inside the cube will be equal 36/3 = 12 cm^3
5 0
3 years ago
Read 2 more answers
What is the slope of this line?
dalvyx [7]

\bf 6x-2y+22 = 0\implies 6x-2y=-22\implies -2y=-6x-22 \\\\\\ y=\cfrac{-6x-22}{-2}\implies y = \cfrac{-6x}{-2}-\cfrac{22}{-2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{3}x+11\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

6 0
2 years ago
A rectangular piece of land to be developed as a memorial park has an area of 75 m^2. The length of the lot is three times the w
Lelechka [254]

Let length = l

width = w

length = 3 times width = 3w

Area of the land = 75 sq. m

Area = length × width = 3w×w = 75

3w²=75

w²=25

w=5 m

length = 3×15 = 15m

Now lets make the figure with the path of width x meters

(Refer the attached figure for easy understanding)

The inner length is the length of the rectangle reduced by x meters on either side due to the path

that is 15-x-x = 15-2x

the inner width is the width reduced by x meters in either side

= 5-x-x = 5-2x

Now lets calculate the inner area = inner length × inner width

(15-2x)×(5-2x)

= 75-30x-10x+4x^{2}

= 75-40x+4x^{2} sq. m

Now the function to calculate the cost

f(x) is given by $3.00 × area of the inner land

f(x) = 3 × {75-40x+4x²)

= 225-120x+12x²

or

= 12x²-120x+225

5 0
3 years ago
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