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velikii [3]
3 years ago
6

Find the perimeter of the triangle. A) 20 B) 51 C) 12 + 74 D) 12 + 47

Mathematics
2 answers:
masya89 [10]3 years ago
7 0
D i know i’ve done it
zysi [14]3 years ago
3 0
The answer of the question is D
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What does it mean when the point on a number line is open?
Aleks [24]
It means that value is not counted. it’s there but you don’t include it
3 0
3 years ago
I just need to know the answer to B.
sleet_krkn [62]

Answer:

24%

Step-by-step explanation:

45 + 37 + 52 + 94 + 72 = 300

72/300 = 0.24 x 100

= 24%

7 0
3 years ago
According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.
UNO [17]

Answer:

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

Step-by-step explanation:

We are given that according to a study done by Wake field Research, the proportion of Americans who can order a meal in a foreign language is 0.47.

Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.

<em>Let </em>\hat p<em> = sample proportion of Americans who can order a meal in a foreign language</em>

The z-score probability distribution for sample proportion is given by;

          Z = \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion

p = population proportion of Americans who can order a meal in a foreign language = 0.47

n = sample of Americans = 200

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is given by = P( \hat p > 0.50)

  P( \hat p > 0.06) = P( \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } > \frac{0.5-0.47}{\sqrt{\frac{0.5(1-0.5)}{200} } } ) = P(Z > 0.85) = 1 - P(Z \leq 0.85)

                                                               = 1 - 0.80234 = <u>0.19766</u>

<em>Now, in the z table the P(Z  </em>\leq <em>x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 0.85 in the z table which has an area of 0.80234.</em>

Therefore, probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

4 0
3 years ago
A point has the coordinates (0, k).
Lemur [1.5K]
**Answer**:
The Reflection across y axis
Step-by-Step Explanation:
A reflection across the y axis with x Coordinate of 0 will stay 0 and also does
Not change the y Coordinate of k

~ hope this helps
3 0
2 years ago
Read 2 more answers
suppose you invest $700 in a savings account that pays 4.2% annual interest compounded continuously. how much money will be in t
Elina [12.6K]

Answer:

847

Step-by-step explanation:

700 ÷100 = 7

7× 4.2 = 29.4

29.4×5 =147

500+147

7 0
3 years ago
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