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Dmitriy789 [7]
3 years ago
14

Which of the following describes graphing y ≥ |x| - 4? Translate y = |x| down 4 units and shade inside the V. Translate y = |x|

up 4 units and shade inside the V. Translate y = |x| left 4 units and shade inside the V. Translate y = |x| right 4 units and shade inside the V.
Mathematics
1 answer:
Andru [333]3 years ago
6 0

Answer:

Translate y = |x| down 4 units and shade inside the V.

Step-by-step explanation:

We want to graph the inequality

y \geqslant  |x|  - 4

We first need to graph the corresponding absolute value equation.

y =  |x|  - 4

We graph the parent absolute value function,

y =  |x|

and shift 4 units down.

We then test the origin:

0 \geqslant  |0|  - 4 \\ 0 \geqslant  - 4

This is true.

Therefore we shade inside the V shape.

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Probability of drawing a face card =
4 suits x 3 = 12
\frac{12}{52}  =  \frac{3}{13}
Probability of drawing a black card =
\frac{26}{52}  =  \frac{1}{2}
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Hamal has a new part time job bagging groceries after school. The equation y=10x+50 show the relationship between his hours of w
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Step-by-step explanation:

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Last digit (unit digit) of 2^2014
Drupady [299]

Answer:

4

Step-by-step explanation:

Let's find a pattern.

2^0=1

2^1=2

2^2=4

2^3=8

2^4=16

2^5=32

2^6=64

2^7=128

2^8=256

So starting after power of 0, the pattern begins at power=1. The pattern is 2,4,8,6 for the units digit. Since the pattern repeats in 4, then we shall divide the power in question by 4 seeking it's remainder.

Remainder=1 implies unit digit is 2 (see 2^1=2)

Remainder=2 implies unit digit is 4 (see 2^2=4)

Remainder=3 implies unit digit is 8 (see 2^3=8)

Remainder=0 implies unit digit is 6 (see 2^4=16)

2014/4 = 503 + 2/4

So remainder=2 implies unit digit is 4.

7 0
2 years ago
A 3-column table with 6 rows. Column 1 is labeled Number Rolled with entries 1, 2, 3, 4, 5, 6. Column 2 is labeled Observed Freq
alisha [4.7K]

Answer:

1/5, 2/15

Step-by-step explanation:

All the probabilities are the Observed Frequencies/Total Rolls = Observed Frequencies/60

That means A is 12/60 = 1/5

That also means B is 8/60 = 2/15

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Given points A(-1, -2) and B(2, 4) where AP: BP=1:2, find the locus of point P.​
koban [17]

Answer:

x^2 + 4x + y^2 +8y  =  0

Step-by-step explanation:

Given

A = (-1,-2)

B = (2,4)

AP:BP = 1 : 2

Required

The locus of P

AP:BP = 1 : 2

Express as fraction

\frac{AP}{BP} = \frac{1}{2}

Cross multiply

2AP = BP

Calculate AP and BP using the following distance formula:

d = \sqrt{(x - x_1)^2 + (y - y_1)^2}

So, we have:

2 * \sqrt{(x - -1)^2 + (y - -2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}

2 * \sqrt{(x +1)^2 + (y +2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}

Take square of both sides

4 * [(x +1)^2 + (y +2)^2] = (x - 2)^2 + (y - 4)^2

Evaluate all squares

4 * [x^2 + 2x + 1 + y^2 +4y + 4] = x^2 - 4x + 4 + y^2 - 8y + 16

Collect and evaluate like terms

4 * [x^2 + 2x + y^2 +4y + 5] = x^2 - 4x + y^2 - 8y + 20

Open brackets

4x^2 + 8x + 4y^2 +16y + 20 = x^2 - 4x + y^2 - 8y + 20

Collect like terms

4x^2 - x^2 + 8x + 4x + 4y^2 -y^2 +16y + 8y  + 20 - 20 =  0

3x^2 + 12x + 3y^2 +24y  =  0

Divide through by 3

x^2 + 4x + y^2 +8y  =  0

3 0
3 years ago
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