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Paraphin [41]
2 years ago
11

Please help me find the value of x with all the work

Mathematics
2 answers:
lutik1710 [3]2 years ago
7 0
X=21 lmk if you need the work shown
iVinArrow [24]2 years ago
4 0

Answer:

x = 21

Step-by-step explanation:

the angles 5x - 35 and 3x + 7 are vertical angles and congruent, thus

5x - 35 = 3x + 7 ( subtract 3x from both sides )

2x - 35 = 7 ( add 35 to both sides )

2x = 42 ( divide both sides by 2 )

x = 21

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What is the margin of error for a sample statistic for a population with a standard deviation of 5.75?
IRISSAK [1]

Answer:

Margin of error =z-score value for chosen confidence level×population standard deviation

Assuming a 95% confidence level , then

z=1.96

standard deviation=5.75

Margin of error= 1.96×5.75=11.27

7 0
2 years ago
Read 2 more answers
Do the following measurements form a triangle? True or false <br><br> 24°, 30° , 126°
Aleks04 [339]

Answer:

True

Step-by-step explanation:

The sum of measures of these three angles of any triangle is invariably equal to the straight angle, also expressed as 180 °.

24+30+126=180

6 0
2 years ago
How do I do this please help
Umnica [9.8K]

Answer:

wrong as his calculation was incorrect at initial level itself when he found the result of the division

Step-by-step explanation:

Andre said

3 ÷ \frac{2}{3}

=3 \times \frac{3}{2}

=\frac{3 \times 3}{2}

=\frac{9}{2}

but andre calculated it as

=4\tfrac{1}{3}

=\frac{4 \times 3 + 1}{3}

=\frac{13}{3}

Hence his calculation was incorrect at initial level itself

4 0
3 years ago
Help guys pls asap!!!
saveliy_v [14]
2 sorry if i’m wrong
7 0
2 years ago
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Idk what this is can you help me? :(
Flura [38]

Answer:

9

Step-by-step explanation:

If you add 9 to both sides, you will isolate the 'x' term.

hope this helps :)

5 0
3 years ago
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