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erastova [34]
3 years ago
8

A, O and B lie on a straight line segment.

Mathematics
2 answers:
Helga [31]3 years ago
6 0
180 is the degrees a straight line segment is. This means that
4x + 3x + 2x = 180.
Since these all have the same variable (x), then you can add the coefficients. (4,3,2)
9x = 180
180/9 = x

X = 20

Dafna1 [17]3 years ago
6 0

Answer:

The value of x is 20°

Step-by-step explanation:

Here, For a given Straight Line

We know that, The Straight angle is an angle equal to 180°

So,

4x + 3x + 2x = 180°

9x = 180°

Divide by 9 from both side

9x/9 = 180°/9

x = 20°

Thus, The value of x is 20°

<h3><u>FOR</u><u> </u><u>VERIFICATION</u><u> </u><u>ONLY</u><u>:</u></h3>

<u>4x + 3x + 2x = 180°</u>

9x = 180°

95(20°) = 180°

180° = 180°

Hence, L.H.S = R.H.S

<u>-TheUnknownScientist</u>

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Step-by-step explanation:

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If she had an increase of 50%, the answer is 6 out of 10 shots.

4 0
3 years ago
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Tanya [424]

Answer:

98%  Confidencce Interval is ( 3030.6, 7467.4 )

Step-by-step explanation:

Given that:

Sample size n_1 = 71

Sample size n_2 = 31

Sample mean \overline x_1 = 41628

Sample mean x_2 = 36,379

Population standard deviation \sigma_1 = 4934

Population standard deviation \sigma_2 = 4180

At 98% confidence interval level, the level of significcance = 1 - 0.98 = 0.02

Critical value at z_{0.02/2} = 2.33

The Margin of Error = z \times \sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma^2_2}{n_2} }

= 2.33 \times \sqrt{\dfrac{4934^2}{71}+\dfrac{4180^2}{31} }

= 2.33 \times \sqrt{\dfrac{24344356}{71}+\dfrac{17472400}{31} }

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The Lower limit = ( \overline x_1 - \overline x_2) - (Margin \ of \ error)

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The upper limit = ( \overline x_1 - \overline x_2) + (Margin \ of \ error)

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Step-by-step explanation:

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<u>Answer:</u>

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<u>Solution:</u>

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