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Dafna1 [17]
3 years ago
5

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

o the line: 2x-4y = -11
Mathematics
1 answer:
prisoha [69]3 years ago
3 0

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

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Write the number 31 in tens and ones. 2 tens ? Ones
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Tens = 3
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3 years ago
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You start at (0, -1). You move left 3 units and right 6 units. Where do you end?
Lana71 [14]
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8 0
2 years ago
In the triangle below, 21 = 35 and 23 = 100°.<br> 1<br> 3<br> What is the measure of angle 2?
Luda [366]

Answer: Angle 2: 45°

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5 0
3 years ago
Jude says that the volume of a square pyramid with base edges of 9.7 in and a height of 9 in is equal to the volume of a cylinde
earnstyle [38]

Answer:

The correct option is;

Yes, his calculations are correct and the volumes for figures are equal

Step-by-step explanation:

The volume, V, of a square  (of side s) pyramid of height h = \frac{1}{3} \times s^2 \times h

Where:

s = 9.7 inches

h = 9 inches

We have;

V = \frac{1}{3} \times 9.7^2 \times 9 = \frac{1}{3} \times 94.09 \times 9 = \frac{1}{3} \times 846.81 = 282.27 \approx 282 \ in^3

The volume, V_c, of a cylinder of radius r = Base area × Height, h = (π×r²)×h

Where:

Base area = π×r²

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Therefore, Jude is correct.

4 0
3 years ago
A number, one fourth of that number, and 1/5 of that number are added. The result is 58. What is the original number?
sergij07 [2.7K]
X + 1/4x + 1/5x = 58
20/20x + 5/20x + 4/20x = 58
29/20x = 58
x = 58 * 20/29
x = 1160/29 = 40 <== the original number
5 0
3 years ago
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