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mars1129 [50]
2 years ago
10

6) HELP plz ASAP the last one plz help

Mathematics
2 answers:
Andrei [34K]2 years ago
8 0

B. 16 rides

Dino= 4+ .80x

Unicorn= 12+ .30x

x=16

when you plug 16 in it would be

dino= 4+ .80(16)

=4+12.8

=16.8

unicorn= 12+ .30(16)

=12+4.8

=16.8

`>`

eduard2 years ago
4 0

Answer:

12

Step-by-step explanation:

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he mayor of a town has proposed a plan for the construction of an adjoining community. A political study took a sample of 160016
Diano4ka-milaya [45]

Answer:

2.60

Step-by-step explanation:

Given that:

n = 1600

\hat p = 0.34

P_o = 0.31

The test statistics can be computed as:

Z = \dfrac{\hat p - P_o}{\sqrt{ \dfrac{P_o\times (1-P_o) } {n} }}

Z = \dfrac{0.34-0.31}{\sqrt{ \dfrac{0.31 \times (1-0.31) } {1600} }}

Z = \dfrac{0.03}{\sqrt{ \dfrac{0.31 \times (0.69) } {1600} }}

Z = \dfrac{0.03}{\sqrt{ \dfrac{0.2139} {1600} }}

Z = 2.60

4 0
3 years ago
In the figure shown, what is the measure of angle x? (5 points) Triangle ABC has measure of angle BAC equal to 50 degrees, and t
kiruha [24]

Answer:

Answer is 115 degree

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The diameter of a particle of contamination (in micrometers) is modeled with the probability density function f(x)= 2/x^3 for x
natulia [17]

Answer:

a) 0.96

b) 0.016

c) 0.018

d) 0.982

e) x = 2

Step-by-step explanation:

We are given with the Probability density function f(x)= 2/x^3 where x > 1.

<em>Firstly we will calculate the general probability that of P(a < X < b) </em>

       P(a < X < b) =  \int_{a}^{b} \frac{2}{x^{3}} dx = 2\int_{a}^{b} x^{-3} dx

                            = 2[ \frac{x^{-3+1} }{-3+1}]^{b}_a   dx    { Because \int_{a}^{b} x^{n} dx = [ \frac{x^{n+1} }{n+1}]^{b}_a }

                            = 2[ \frac{x^{-2} }{-2}]^{b}_a = \frac{2}{-2} [ x^{-2} ]^{b}_a

                            = -1 [ b^{-2} - a^{-2}  ] = \frac{1}{a^{2} } - \frac{1}{b^{2} }

a) Now P(X < 5) = P(1 < X < 5)  {because x > 1 }

     Comparing with general probability we get,

     P(1 < X < 5) = \frac{1}{1^{2} } - \frac{1}{5^{2} } = 1 - \frac{1}{25} = 0.96 .

b) P(X > 8) = P(8 < X < ∞) = 1/8^{2} - 1/∞ = 1/64 - 0 = 0.016

c) P(6 < X < 10) = \frac{1}{6^{2} } - \frac{1}{10^{2} } = \frac{1}{36} - \frac{1}{100 } = 0.018 .

d) P(x < 6 or X > 10) = P(1 < X < 6) + P(10 < X < ∞)

                                = (\frac{1}{1^{2} } - \frac{1}{6^{2} }) + (1/10^{2} - 1/∞) = 1 - 1/36 + 1/100 + 0 = 0.982

e) We have to find x such that P(X < x) = 0.75 ;

               ⇒  P(1 < X < x) = 0.75

               ⇒  \frac{1}{1^{2} } - \frac{1}{x^{2} } = 0.75

               ⇒  \frac{1} {x^{2} } = 1 - 0.75 = 0.25

               ⇒  x^{2} = \frac{1}{0.25}   ⇒ x^{2} = 4 ⇒ x = 2  

Therefore, value of x such that P(X < x) = 0.75 is 2.

8 0
2 years ago
If triangle DEF is classified as equilateral, which statement must be true?
patriot [66]

Answer:

all three sides are congruent.

Step-by-step explanation:

it is equiangular.

sides are equal.

angles are equal.

all three sides are congruent.

6 0
2 years ago
Help me with this attachment please?
Volgvan

<u>Answer</u>

1st solution: a = 1

                   b = 3

2nd solution: a = 2

                      b = 6


<u>Explanation</u>

1st solution

                  <em>         1</em>

<em>                       333</em>

<em>                       333</em>

<em>                       333</em>

<em>                   </em><em><u>  +333</u></em>

<em>               </em><em><u>       1333</u></em>

2nd solution

<em>         2</em>

<em>    666</em>

<em>    666</em>

<em>    666</em>

<em><u> + 666</u></em>

<em><u> 2666</u></em>

4 0
3 years ago
Read 2 more answers
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