Samantha walks a total of 2/3 mile to get to and from school each day . Find the total number of miles that Samantha walked to and from school over 5 days

Answer:

[tex] c = 25[/tex]

Step-by-step explanation:

Given :-

And we need to find out the value of c for which the given trinomial is a perfect square. On looking at the given expression all the terms are having positive signs before them .So we can rewrite it on the basis of ,

Identity :-

[tex]\implies (a+b)^2=a^2+b^2+2ab[/tex]

Let's try to set the equation on this Identity .

The firsr term is 9x² . We can write it as ,

[tex]\implies 9x^2=(3x)^2[/tex]

Hence the middle term here should contain 3 and 2 as their factors. Let's Break the middle term .

[tex]\implies 30x = 2.3x.5 [/tex]

Therefore in order to make the whole expression as perfect square 5² must be replaced by c . The expression would become ,

[tex]\implies 9x^2+30x + 5^2 \\\\\implies (3x)^2+2.3x.5 +5^2\\\\\implies (3x+5)^2[/tex]

Hence the value of c should be 25 .

Answer:

Step-by-step explanation:

14 MAY BE

Answer:

0.0939 = 9.39% probability that there will be exactly 4 sets of twins.

Step-by-step explanation:

For each birth, there is only two possible outcomes. Either it results in twins, or it does not. The probability of a birth resulting in twins is independent of any other birth. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The probability that a birth will result in twins is 0.017.

This means that [tex]p = 0.017[/tex]

120 births:

This means that [tex]n = 120[/tex]

The probability that there will be exactly 4 sets of twins is?

This is P(X = 4).

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 4) = C_{120,4}.(0.017)^{4}.(0.983)^{116} = 0.0939[/tex]

0.0939 = 9.39% probability that there will be exactly 4 sets of twins.

Answer:108.6

Step-by-step explanation:

9514 1404 393

Answer:

  3/2

Step-by-step explanation:

The scale factor is the ratio of corresponding side lengths.

  larger/smaller = (21/2)/7 = 21/14 = 3/2

The scale factor is 3/2.

Answer: (12,5)

Step-by-step explanation: For that class you can't do

The points (s, t) is inside the shaded region of the set of inequalities shown is, (3, 2)

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

All the inequalities are,

S < 10 - 0.33t

S < 12 - t

S > 5 - t

S > 0

t > 0

From option B;

Point = (3, 2) = (s, t)

Put s = 3 , t = 2, we get;

S < 10 - 0.33t

3 < 10 - 0.33 x 2

3 < 10 - 0.66

3 < 9.34

Hence, The points (s, t) is inside the shaded region of the set of inequalities shown is, (3, 2)

Learn more about the inequality visit:

https://brainly.com/question/25944814

#SPJ7

Answer:

sooo like my dude i dont actually dont know

Step-by-step explanation:

so my dude might be A dont fricking know fricking idiot lol bozo

Answer: i think C

Step-by-step explanation:

Answer: 0.023 is twenty-three thousandths written in standard form!

Answer: 0.023

Step-by-step explanation:

Answer:

[tex]y = 19000x \\ 19000 = 1 \times 19000 \\ 114000 = 6 \times 114000 \\ 133000 = 7 \times 19000[/tex]

As there are certain steps are there which describes, the definition of f x^m/n re, by  taking the mth root of a number is the same as taking the reciprocal of the exponent, and raising that reciprocality to the power of n is equivalent to raising the original number to the power of n/m.

Statements are sentences that expressage a fact, idea, or legal opinion. Statements do not ask questions, make requests or give speech act. They are also not utterances.

As there is a second step that follows,

2. This can also be written as x^(mn/m^2) = x^(n/m) which is the same as x to the power of (n/m)

3. This can also be written as x^(mn/m^2) = x^(n/m) which is the same as x to the power of (n/m)

4. The expression (x^(m/n))^(n/m) is the definition of x^mn, which is the mth root of x raised to the power of n. It makes sense because taking the mth root of a number is the same as taking the reciprocal of the exponent, and raising that reciprocal to the power of n is equivalent to raising the original number to the power of n/m.

Therefore, As a result, the complete definition of  x^m/n, are as follows in the above statement.

Learn more about the statement here:

https://brainly.com/question/2285414

#SPJ2

The complete statement was.

The expression (x^(m/n))^(n/m) is the definition of x^mn, which is the mth root of x raised to the power of n. It makes sense because taking the mth root of a number is the same as taking the reciprocal of the exponent, and raising that reciprocal to the power of n is equivalent to raising the original number to the power of n/m.

9514 1404 393

Answer:

  The correct answer choice is marked

Step-by-step explanation:

The distributive property can be used here.

  [tex]\displaystyle \frac{4y^6+8y^4}{2y^2}=\frac{4y^6}{2y^2}+\frac{8y^4}{2y^2}=2y^{6-2}+4y^{4-2}=\boxed{2y^4+4y^2}[/tex]

Answer:

Mei is correct because -9 is to the left of -3 on the number line. ( -9<-3)

Answer:

Mel is correct because -9 is to the left of -3 on the number line.

Step-by-step explanation:

This is because numbers on the left are less so -9 is less than -3.

Answer:

[tex]distance = \sqrt{ {( - 3 - ( - 3))}^{2} + {(4 - 0)}^{2} } \\ = \sqrt{16} \\ = 4 \: units[/tex]

Answer:

Step-by-step explanation:

C. 5 1/8 + 3/4 = h

Since Charlies heigh is 5 1/8 feet tall. It says Sahil is 3/4 foot taller then Charlie. So 5 1/8 + 3/4 = Sahil height

Answer:

A variable is anything that can change or be changed. In other words, it is any factor that can be manipulated, controlled for, or measured in an experiment.

There are three main variables: independent variable, dependent variable and controlled variables.

A relationship between two variables whereby a change in one coincides with a change in the other is referred to as causality.

Step-by-step explanation:

please mark this answer as brainliest

Answer:

d. Mail surveys to 1,000 subscribers randomly selected from those who have received the magazine for 5 years or more and 1,000 subscribers randomly selected from those who have received the magazine for 1 year or less.

Step-by-step explanation:

In the case of the publishers of the magazine, in order to avoid bias, they would adopt he approach mentioned in the above statement. That is, to consider both those that have recieved the magazine for the past five years or more as well as those who have recieve the magazine for the past one year or less.

This would help them to have a balanced outcome in the survey because all, would attend the the survey with a free mindset rather than baised mindset.

Answer:

ye?

Step-by-step explanation:

Answer:

#1: This system intersects in A:  ✔ zero  place(s).

#2: Which statement is true?  C: There are no solutions.

Step-by-step explanation:

I just did the assignment on EDGE2020 and it's 200% correct!  

Also, heart and rate if you found this answer helpful!! :) (P.S It makes me feel good to know I helped someone today!!)  :)  

This System of Quadratic equation is intersects at zero place.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The quadratic equation is,

- x² + x + 6 = 2x + 8

Now,

The quadratic equation is;

- x² + x + 6 = 2x + 8

x² + 2x - x + 8 - 6 = 0

x² + x + 2 = 0

So, The solution of the quadratic equation is solve as;

x = - 1 ± √1² - 4 × 1 × 2 / 2 × 1

x = -1 ± √1 - 8 / 2

x = - 1 ± √-7 / 2

x = - 1 ± √7i / 2

Clearly, It has no real solution do, it cannot cut at any point.

Therefore,

This System of Quadratic equation is intersects at zero place.

Learn more about the quadratic equation visit:

https://brainly.com/question/25841119

#SPJ2

Answer:

plz convert it i can't understand

Answer:

The variance is of 8

Step-by-step explanation:

To find the variance and the standard deviation, first we need to find the mean.

Mean:

Sum of all values divided by the number of values. So

[tex]M = \frac{78+72+68+73+75+69+74+73+72}{9} = 72.67[/tex]

The standard deviation is of 2.83

Variances:

Sum of the difference squared between each value and the mean, divided by the number of values. So

[tex]V = \frac{(78-72.67)^2+(72-72.67)^2+(68-72.67)^2+(73-72.67)^2+(75-72.67)^2+(69-72.67)^2+(74-72.67)^2+(73-72.67)^2+(72-72.67)^2}{9} = 8[/tex]

The variance is of 8

Standard deviation:

Square root of the variance. So

[tex]S = \sqrt{V} = \sqrt{8} = 2.83[/tex]

The standard deviation is of 2.83

Answer:

38 because the 5 tells the 7 to round up to 8

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

Angles EAB = 85 degrees

Step-by-step explanation:

This my answer with the working steps...

Answer:

(2,1)

6928ft

59.0813m

26 1/4m

Step-by-step explanation:

Area of a trapezoid = (a+b)*h/2 so (100+150)*80/2

= 10000

Area of a rectangle = l*w so 48*64

=3072

10000-3072 = 6928

The surface area of a square pyramid is A=a^2+2a√a^2/4+h^2 which is A=4^2+2(4)√(4)^2/4+(5)^2 which = 59.08

Volume of a rectangular prism is l*w*h so 3.5*1.25*6 = 26.25 which is equal to 26 1/4

Answer:

Option D "The graph on the left is..."

Step-by-step explanation:

because there's no graph that ever starts on 81 lol