i need help im gonna fail

Answer:

110

Step-by-step explanation:

90 + 10

Answer:

first one

Step-by-step explanation:

Answer:

N = 4

Step-by-step explanation:

Answer:

1407 and 30 minutes

Step-by-step explanation:

one day 58d 15h 30m

58 days x 24 hours = 1392

1392+15 hours = 1407

Answer:

the answer is 60° I think

Answer:

3 cm

Step-by-step explanation:

First, we have to understand what happens if two shapes are similar. When two shapes are similar, the angles are equal in both. This means the sides will be in the same ratio from one shape to another.

[tex]\frac{7.2}{t}=\frac{9.6}{4}[/tex]

Using the equation above, we can find t. We use cross multiplication (ad = bc)

7.2 * 4 = 9.6t

9.6t = 28.8

t = 3 cm

Answer:

160m squared

Step-by-step explanation:

Answer:

You can try using flash cards or use quizlet

Answer:

By studying practice quizzes in that chapter and reviewing past work.

Step-by-step explanation:

hope this helped!

Answer:

(-1,0) and (3,0)

Step-by-step explanation:

The x-intercepts are the points where the graph crosses the x-axis. (-1,0) and (3,0)

Answer:

the last one is correct if see the commas

Step-by-step explanation:

plz mark me as a brainliest

Answer:

81.5% of 1-mile long roadways with potholes numbering between 22 and 52

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean of 42, standard deviation of 10.

The normal distribution is symmetric, so 50% of the measures are below the mean and 50% are above the mean

Approximate percentage of 1-mile long roadways with potholes numbering between 22 and 52:

22 = 42 - 2*10

So 22 is two standard deviations below the mean. Of the 50% of the measures that are below the mean, 95% are between two standard deviations below the mean(22) and the mean(42).

52 = 42 + 10

So 42 is one standard deviation above the mean. Of the 50% of the measures that are above the mean, 60% are between the mean(42) and one standard deviation above the mean(52).

In the desired interval, the percentage is:

[tex]P = 0.5*0.95 + 0.5*0.68 = 0.815[/tex]

81.5% of 1-mile long roadways with potholes numbering between 22 and 52

Answer:

The angle between [tex](2,2,4)[/tex] and [tex](2,-1,1)[/tex] is 60º.

Step-by-step explanation:

From linear algebra, we can determine the angle between both vectors by definition of dot point:

[tex]\cos \theta = \frac{\vec u\bullet \vec v}{\|\vec u\|\cdot \| \vec v\|}[/tex] (1)

Where:

[tex]\vec u[/tex], [tex]\vec v[/tex] - Vectors.

[tex]\|\vec u\|[/tex], [tex]\|\vec v\|[/tex] - Norms of vectors.

[tex]\theta[/tex] - Angle between vectors, measured in sexagesimal degrees.

If we know that [tex]\vec u = (2,2,4)[/tex] and [tex]\vec v = (2,-1,1)[/tex], then angle between vectors is:

[tex]\|\vec u\| = \sqrt{\vec u\bullet \vec u}[/tex] (2)

[tex]\|\vec u\| = \sqrt{2^{2}+2^{2}+4^{2}}[/tex]

[tex]\|\vec u\| \approx 4.899[/tex]

[tex]\|\vec v\| = \sqrt{\vec v\bullet \vec v}[/tex] (3)

[tex]\|\vec v\| = \sqrt{2^{2}+(-1)^{2}+1^{2}}[/tex]

[tex]\|\vec v\| \approx 2.450[/tex]

[tex]\vec u \bullet \vec v = (2,2,4)\bullet (2,-1,1)[/tex]

[tex]\vec u \bullet \vec v = 4-2+4[/tex]

[tex]\vec u \bullet \vec v = 6[/tex]

[tex]\cos \theta = \frac{6}{(4.899)\cdot (2.450)}[/tex]

[tex]\cos \theta = 0.5[/tex]

[tex]\theta = 60^{\circ}[/tex]

The angle between [tex](2,2,4)[/tex] and [tex](2,-1,1)[/tex] is 60º.

Answer:

6 is my slope

Step-by-step explanation:

1-1

12 - 6 = 6 and that is my answer

Answer:

8

Step-by-step explanation:

8 Because it is 8 jumps on a number line from 0.

Answer:

8

Step-by-step explanation:

I hope this helps!

Answer:

c

Step-by-step explanation:

Answer:

This anwer is A

Step-by-step explanation:

Tell me if im wrong thank you!

Im like 90% sure

Answer:

Step-by-step explanation:

From the given information:

              Passed          Failed        Total

Male            17                   6            23

Female        34                 12            46

Total             51                 18             69

[tex]P(male | fail) = \dfrac{P(male \cap fail)}{ P(fail)}[/tex]

[tex]P(male | fail) = \dfrac{\dfrac{6}{69} }{\dfrac{18}{69}}[/tex]

[tex]P(male| fail) = \dfrac{1}{3}[/tex]

[tex]P(male | fail) = 0.333[/tex]

[tex]P(male) = \dfrac{23}{69}[/tex]

[tex]P(male) = \dfrac {1}{3}[/tex]

[tex]P(male) = 0.333[/tex]

The two results are equal:

So the events are dependent.

answer:

its correct as long as he subtracts 4 after that.

Step-by-step explanation:

That is because if you only subtract part of the first number, the answer will be wrong. and the question is also written a bit wierd.

Answer: $4,664

Step-by-step explanation:

Direct Variation can be set up as a proportion:

[tex]\dfrac{\text{Property Tax}}{\text{Assessed Valuation}}:\dfrac{1590}{81,000}=\dfrac{x}{237,600}[/tex]

Cross Multiply:               x = 4664

Step-by-step explanation:

[tex]Answer: $4,664

Step-by-step explanation:

Direct Variation can be set up as a proportion:

\dfrac{\text{Property Tax}}{\text{Assessed Valuation}}:\dfrac{1590}{81,000}=\dfrac{x}{237,600}Assessed ValuationProperty Tax:81,0001590=237,600x

Cross Multiply:               x = 4664

[/tex]

Answer:

1,-2

1,1

2,-1

these ate after multiplying all the vertices by 1/5

Answer: B) 2&3

Step-by-step explanation:

7/3 is 2.33333 repeating which in a complete fraction is 2 1/3.

On a number line, your answer would between 2 and 3.

Answer:

3 packs of water because its one one cent less then the other question

.25>.26

Step-by-step explanation:

Answer: True

Step-by-step explanation:

(1) 100% - 9% = 91% = .91

(2) .91 x 17,000 = 15470

(3) 17,000 - 15,470 = 1'530

Answer:

466.8490566

Step-by-step explanation:

use your calculator

Answer:

P = 37 lmk if u want me to explain how ;=;

Step-by-step explanation:

Answer:

-16r -2

Step-by-step explanation:

plz brainliest :)

do you want an explanation?

Answer:

86%

Step-by-step explanation:

88 times 5 = 440

78 + 86 + 96 + 94 = 354

440 - 354 = 86

Answer:

The probability that a call lasts less than 4 minutes  

 P(X<4) = P(Z<-1.25) = 0.1056

Step-by-step explanation:

Step(i):-

Given mean of the population = 6.5 minutes

Given standard deviation of the Population = 2 minutes

Let 'X' be the random variable in normal distribution

Given X = 4

[tex]Z= \frac{x-mean}{S.D} = \frac{4-6.5}{2} = -1.25[/tex]

Step(ii):-

The probability that a call lasts less than 4 minutes

P(X<4) = P(Z<-1.25)

           = 1-P(z>1.25)

          = 1 - ( 0.5 +A(1.25)

         = 1-0.5 - A(1.25)

       = 0.5 - 0.3944    ( from normal table)

       = 0.1056

Final answer:-

The probability that a call lasts less than 4 minutes  

 P(X<4) = P(Z<-1.25) = 0.1056