All categories

3 years ago

the measures of two of the angles in a triangle are 126.7 and 19 degrees find the measures of the third angle

Mathematics

1 answer:

Dima020 [189]3 years ago

6 0

Angles in a triangle add up to 180
126.7+ 19= 145.7
180-145.7= 34.3 <--- answer

You might be interested in

HELP PLEASEE no links hellpp

bezimeni [28]

Answer:

B and E

Step-by-step explanation:

perpendicular sides mean they will equal 90 degrees... so all rectangles and squares are perpendicular- a 90 degree triangle also is perpendicular. The Equatorial and the Acute triangle do not have 90 degree angles

4 0

3 years ago

A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only

Nadusha1986 [10]

Answer:

The sample size required is, n = 502.

Step-by-step explanation:

The (1 - α)% confidence interval for population proportion is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p\cdot (1-\hat p)}{n}}$

The margin of error is:

$MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}$

Assume that 50% of the people would support this political candidate.

The margin of error is, MOE = 0.05.

The critical value of z for 97.5% confidence level is:

z = 2.24

Compute the sample size as follows:

$MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}$

$n=[\frac{z_{\alpha/2}\times \sqrt{\hat p(1-\hat p)}}{MOE}]^{2}$

$=[\frac{2.24\times \sqrt{0.50(1-0.50)}}{0.05}]^{2}\\\\=501.76\\\\\approx 502$

Thus, the sample size required is, n = 502.

4 0

3 years ago

Plzzzzz HELPPPPPPPPPPPPP

adoni [48]

Answer:

125 - 12 /3 = 125 - 4 = 121

Step-by-step explanation:

4 0

2 years ago

10z^2 -2z-2 10z 2 −2z−2

KatRina [158]

Two solutions were found :

z =(2-√-116)/-20=1/-10+i/10√ 29 = -0.1000-0.5385i

z =(2+√-116)/-20=1/-10-i/10√ 29 = -0.1000+0.5385i

Step-by-step explanation:

5 0

2 years ago

Suppose that the probability that an item produced by a certain machine will be defective is 0.1. Find the probability that a sa

sesenic [268]

Answer:

no it is really easy question to answered so do it your self

4 0

2 years ago