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koban [17]
4 years ago
11

determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither. 3x-4y=-5 8x+6y=-5 show full w

ork please and thank you
Mathematics
2 answers:
vivado [14]4 years ago
7 0
3x - 4y = -5
4y = 3x + 5
y = (3/4)x + 5/4

8x + 6y = -5
6y = -8x - 5
y = -(8/6)x - 5/6
y = -(4/3)x - 5/6

Because the slopes are negative reciprocals, the lines are perpendicular.
Nataly [62]4 years ago
3 0
What are the solutions of the equation x4 – 5x2 – 14 = 0? Use factoring to solve.
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Answer:

Lauren is 19. Lauren's grandmother is 61.

Step-by-step explanation:

19 * 3 = 57

57 + 4 =61

19 + 61 = 80

7 0
3 years ago
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Are these ratios equivalent?<br> 12 cards to 72 animals, 11 marbles to 66 marbles
Dmitrij [34]
yes

72/12 = 6
66/11 = 6

6 = 6
8 0
3 years ago
HURRY I NEED HELP SOON
Juliette [100K]

Answer:

(Sorry in advance if its wrong so don't get mad) but I think its d

Step-by-step explanation:

8 0
4 years ago
The aspect ratio (the ratio of screen width to
stira [4]

Answer:

Width = 36in

Size = 42.02

Step-by-step explanation:

Given

x \to width

y \to height

x : y = 16 : 9

Required

The size of screen of height 20,6in

First, we calculate the width using the following equivalent ratios

16: 9 = x : 20.6

Express as fraction

\frac{16}{ 9} = \frac{x }{ 20.6}

Solve for x

x = 20.6 * \frac{16}{ 9}

x = 36.62

Hence:

Width = 36in --- approximated

So, we have:

x = 36.62

y =20.6

The size (diagonal) is then calculated using:

Size = \sqrt{x^2 + y^2

Size = \sqrt{36.62^2 + 20.6^2

Size = \sqrt{1765.3844

Size = 42.02

Size =42in --- approximated

8 0
3 years ago
In the figure CD is the perpendicular bisector of AB . If the length of AC is 2x and the length of BC is 3x - 5 . The value of x
Dennis_Churaev [7]

Answer

Find out the value of x .

To proof

SAS congurence property

In this property two sides and one angle of the two triangles are equal.

in the Δ ADC and ΔBDC

(1) CD = CD (common side of both the triangle)

(2) ∠CDA = ∠ CDB = 90 °

( ∠CDA +∠ CDB = 180 ° (Linear pair)

as given in the diagram

∠CDA  = 90°

∠ CDB = 180 ° - 90°

∠ CDB = 90°)

(3) AD = DB (as shown in the diagram)

Δ ADC ≅ ΔBDC

by using the SAS congurence property .

AC = BC

(Corresponding sides of the congurent triangle)

As given

the length of AC is 2x and the length of BC is 3x - 5 .

2x = 3x - 5

3x -2x =5

x = 5

The value of x is 5 .

Hence proved


7 0
3 years ago
Read 2 more answers
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