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Nina [5.8K]
4 years ago
13

What is the value of x? (giving brainliest and thanks to all!)

Mathematics
1 answer:
andrezito [222]4 years ago
3 0

Answer:

x = 12

Step-by-step explanation:

Given a line parallel to a side of the triangle and it intersects the other 2 sides then it divides those sides proportionally, that is

\frac{x}{24} = \frac{5}{10} ( cross- multiply )

10x = 120 ( divide both sides by 10 )

x = 12

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olasank [31]
Hola!

Q. A regular Hexagon has reflection symmetry : True!

Because,
A shape has reflection symmetry only when it has one or more lines of symmetry.

A line of symmetry is a line that passes through a figure such that it splits the figure into two congruent halves.

[ refer the attachment. ]

hope it helps!

6 0
4 years ago
2x - 2 <4 solve for x
Shkiper50 [21]

Answer:

X < 3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which expression shows the quotiet of n and 4
nirvana33 [79]

Answer: 4n or 4 x n or 4 * n

Step-by-step explanation:

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3 years ago
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According to a poll, 76% of California adults (385 out of 506 surveyed) feel that education is one of the top issues facing Cali
lina2011 [118]

Answer:

The error bound is 3.125%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

A sample of 506 California adults.. This means that n = 506.

76% of California adults (385 out of 506 surveyed) feel that education is one of the top issues facing California. This means that \pi = 0.76

We wish to construct a 90% confidence interval

So \alpha = 0.10, z is the value of Z that has a pvalue of 1 - \frac{0.10}{2} = 0.95, so z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.76 - 1.645\sqrt{\frac{0.76*0.24}{506}} = 0.7288

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.76 + 1.645\sqrt{\frac{0.76*0.24}{506}} = 0.7913

The error bound of the confidence interval is the division by 2 of the subtraction of the upper limit by the lower limit. So:

EBM = \frac{0.7913 - 0.7288}{2} = 0.03125

The error bound is 3.125%.

3 0
3 years ago
a bag contains 5white and 3red identical balls.if the balls are drawn at random after the other without replacement. what is the
astra-53 [7]

Answer:

2/7

Step-by-step explanation:

5 0
3 years ago
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