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Sedbober [7]
3 years ago
10

Find the area of the triangle

Mathematics
2 answers:
Lunna [17]3 years ago
8 0

Answer:

Area of the triangle=

\frac{1}{2}  \times 20 \times 33 \\ 330 {feet}^{2}

GrogVix [38]3 years ago
3 0

Answer:

330 feet squared

Step-by-step explanation:

Hope this helps :)

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2x^2 -8x + 1 = 0 solving using quadratic formula round to the nearest 10
Mazyrski [523]

Answer:

x=0.129171

x=3.87083

Step-by-step explanation:

5 0
3 years ago
Assume that 8​% of people are​ left-handed. We select 6 people at random. ​a) How many lefties do you​ expect? ​b) With what sta
klemol [59]

Answer:

a) 0.48

b) 0.6645

c) 12.5

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are left-handed, or they are not. The probabilities of each person being left-handed are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

The number of trials expected to find r sucesses is given by

N = \frac{r}{p}

In this problem we have that:

Assume that 8​% of people are​ left-handed. We select 6 people at random. ​

This means that p = 0.08, n = 6

a) How many lefties do you​ expect?

E(X) = np = 6*0.08 = 0.48

​b) With what standard​ deviation?

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{6*0.08*0.92} = 0.6645

​c) If we keep picking people until we find a​ lefty, how long do you expect it will​ take?

Number of trials to find 1 success. So

N = \frac{r}{p} = \frac{1}{0.08} = 12.5

4 0
3 years ago
Need answer ASAP giving points
dalvyx [7]

Answer:

-  \frac{11}{12}

Step-by-step explanation:

\frac{ \frac{5}{8}  +  \frac{3}{4} }{ \frac{ - 2}{3} -  \frac{5}{6}  }  =  \frac{ \frac{5}{8}  +  \frac{6}{8} }{ \frac{ - 4}{6}  -  \frac{5}{6} }  \\  \\  =  \frac{ \frac{5 + 6}{8} }{ \frac{ - 4 - 5}{6} }  \\  \\  =  \frac{ \frac{11}{8} }{ -  \frac{9}{6} }  \\  \\  =  \frac{11}{8}  \div ( -  \frac{9}{6} ) \\  \\  =  \frac{11}{8}  \times ( -  \frac{6}{9} ) \\  \\  =  \frac{11}{8}  \times ( -  \frac{2}{3} ) \\  \\  =  \frac{11}{4}  \times ( -  \frac{1}{3} ) \\  \\  =  -  \frac{11}{12}

8 0
3 years ago
A circle is divided into 6 equal parts. what is the total angle measure of 1 part?
Rus_ich [418]

Answer:

dis \: is \: easy \\ angle \: in \: a \: circle = 360 \\ the \: angle \: is \: divided \: into \: six \: part \\ divide \: the \: 360 \: by \: 6 \\  \frac{360}{6}  = 60 \\ therefore \: the \: angle \: of \: one \: part \: \\  = 60 \: degree

7 0
3 years ago
PLS HELP ME ;;;-;;;
Mandarinka [93]

Answer:

X=11

Step-by-step explanation:

9x+6= (3x+2)+(70)

Simplify: 6x+6=72

6x+6=72

6x=66

x=11

5 0
3 years ago
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