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3 years ago

12

If three sides of one triangle are congruent to three sides of a second triangle, then the two triangles are congruent. this the

_____ congruence postulate.

1 answer:

Leokris [45]3 years ago

6 0

SSS, or side side side postulate

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Help on thisi please

SVETLANKA909090 [29]

Answer:

False for both

Step-by-step explanation:

Neither of these images are symmetrical vertically nor horizontally.

4 0

2 years ago

Read 2 more answers

May I please receive help?

mario62 [17]

Answer:

it depends on the choices

Step-by-step explanation:

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2 years ago

The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, So

tatyana61 [14]

Answer:

The probability that at least 13 flights arrive late is 2.5196 $\times 10^{-6}$ .

Step-by-step explanation:

We are given that Southwest Air had the best rate with 80 % of its flights arriving on time.

A test is conducted by randomly selecting 18 Southwest flights and observing whether they arrive on time.

The above situation can be represented through binomial distribution;

$P(X = x) = \binom{n}{r}\times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,.........$

where, n = number of trials (samples) taken = 18 Southwest flights

r = number of success = at least 13 flights arrive late

p = probability of success which in our question is probability that

flights arrive late, i.e. p = 1 - 0.80 = 20%

Let X = <u><em>Number of flights that arrive late</em></u>.

So, X ~ Binom(n = 18, p = 0.20)

Now, the probability that at least 13 flights arrive late is given by = P(X $\geq$ 13)

P(X $\geq$ 13) = P(X = 13) + P(X = 14) + P(X = 15) + P(X = 16) + P(X = 17) + P(X = 18)

= $\binom{18}{13}\times 0.20^{13} \times (1-0.20)^{18-13}+ \binom{18}{14}\times 0.20^{14} \times (1-0.20)^{18-14}+ \binom{18}{15}\times 0.20^{15} \times (1-0.20)^{18-15}+ \binom{18}{16}\times 0.20^{16} \times (1-0.20)^{18-16}+ \binom{18}{17}\times 0.20^{17} \times (1-0.20)^{18-17}+ \binom{18}{18}\times 0.20^{18} \times (1-0.20)^{18-18}$

= $\binom{18}{13}\times 0.20^{13} \times 0.80^{5}+ \binom{18}{14}\times 0.20^{14} \times 0.80^{4}+ \binom{18}{15}\times 0.20^{15} \times 0.80^{3}+ \binom{18}{16}\times 0.20^{16} \times 0.80^{2}+ \binom{18}{17}\times 0.20^{17} \times 0.80^{1}+ \binom{18}{18}\times 0.20^{18} \times 0.80^{0}$

= 2.5196 $\times 10^{-6}$ .

7 0

3 years ago

(-2, 6) and (4, -6) slope

Jobisdone [24]

slope formula:

(y2-y1)/(x2-x1)

(-6-6)/(4-(-2))

-12/6=

-2

SLOPE: -2

5 0

2 years ago

Is the point (3,2) a solution for x > 4

mixer [17]

Answer:

No

Step-by-step explanation:

Put the x-value into the inequality and see if it is true:

3 > 4 . . . . NOT TRUE

No, (3, 2) is not a solution for x > 4.

6 0

3 years ago