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Natasha_Volkova [10]
3 years ago
11

Find the value of x.

Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

x= 42

Step-by-step explanation:

(2x +1)°= 85° (vert. opp. ∠s)

2x +1= 85

2x= 85 -1 <em> </em><em>(</em><em>bring</em><em> </em><em>constant</em><em> </em><em>to</em><em> </em><em>1</em><em> </em><em>side</em><em>)</em>

2x= 84 <em>(</em><em>simplify</em><em>)</em>

x= 84 ÷2

x= 42

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Three numbers are in the ratio 5 :3 : 2. If the sum of their squares is 5472, find the three numbers
jasenka [17]

Answer:

60  36   24

Step-by-step explanation:

5             3            2

25x +9x + 4x =   5472

38x  = 5472

x =  144

25(144) = 3,600         9(144) = 1,296           4(144) = 576

  60²  = 3,600                   36²= 1,296               24² = 576

3,600 + 1,296+576 =  5,472

7 0
3 years ago
Segment AB falis on line 6x + 3y = 9. Segment CD falls on line 4x + 2y = 8. What is true about segments AB and CD?
Illusion [34]

Answer:

Hence, the correct option is;

They are parallel because they have the same slope of -2

Step-by-step explanation:

Here we have;

AB falls on the line 6x + 3y = 9..........................(1)

CD falls on the line 4x + 2y = 8..........................(2)

Therefore, for equation (1),

3y = 9 - 6x which gives;

y = -2x + 3

for equation (2),

2y = 8 - 4x which gives;

y = -2x + 4

The equation of a straight line is y = m·x + c

Where:

m = Slope

c = Intercept

Hence, since, by comparison to the equation of a straight line, both lines have the same slope of -2, but different intercept, we have that both lines are parallel

Hence, the correct option is;

They are parallel because they have the same slope of -2.

5 0
3 years ago
Please help this is due today
alexira [117]

Answer:

AC=18

BD=6

Step-by-step explanation:

5 0
3 years ago
4) 22 is what percent of 146?<br> A) 0.12%<br> B) 15.1%<br> C) 828.8% D) 8.3%
olga2289 [7]

Answer: the answer is b

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is 0.42 repeating as a fraction
VashaNatasha [74]

0.42=21/50 so the answer is 21/50


8 0
4 years ago
Read 2 more answers
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