can you please help me thank you!!!

Answer:

25 people were surveyed.

Step-by-step explanation:

Add up the frequency.

Explanation:

The period of a function measures how long a cycle takes. Think of tides on a beach. There's a regular pattern that can be predicted whether its high tide or low tide. Time is often the critical component with the period. Since choice D mentions time and the key term "repeat", this is why it's the answer.

The other values, while useful elsewhere, aren't going to tell us anything about the period. The initial value being 5 doesn't tell us when y = 5 shows up again, and if the function is repeating itself at this point or not. So info about choice A is not sufficient to determine the period. The same goes for choices B and C as well.

Answer:

44.44% chance he will not take the longest trail.

Step-by-step explanation:

The probability of the odds against Arjun taking the longest trail is 0.4444 or 44.44% if the probability of the Arjun will take the longest trail is 5/9

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happeing of the event.

Arjun is hiking from a mountain lodge to a nearby summit.

The probability that he will take the longest trail = 5/9

Let's suppose the probability of the odds against Arjun taking the longest trail = x

The sum of the two probabilities of the same event is 1, this is the addition rule of the probability.

By the rule of addtiion of the probability:

x + 5/9 = 1

x = 1 - 5/9   (subtract by 5/9 on both sides)

x = 4/9

x = 0.4444

x =44.44 %

Thus, the probability of the odds against Arjun taking the longest trail is 0.4444 or 44.44% if the probability that Arjun will take the longest trail is 5/9

Learn more about the probability here:

brainly.com/question/11234923

9514 1404 393

Answer:

  x = 65

Step-by-step explanation:

Label the two points where the diagonal lines intersect the baseline A and B, with A on the left.

Obtuse angle A is the sum of the remote interior angles 53° and 80°, so is 133°. Obtuse angle B is the sum of the remote interior angles 50° and 62°, so is 112°. Angle x° is the third interior angle of the small triangle, so is ...

  x° = 180° -(180° -133°) -(180° -112°) = 133° +112° -180° = 65°

x = 65

Answer:

A

Step-by-step explanation:

Answer:

a) 6, b) 8

Step-by-step explanation:

a) a+bc

=4+1.2

= 4+2

= 6

b) abc

=4.1.2

=4.2

=8

Answer:

Option D is correct

Step-by-step explanation:

Hope it is helpful....

Answer:

Option 4

Step-by-step explanation:

Let any two real number a and b (no matter +ve, -ve or 0). a ≥ b

The average of them will always lie in between them or be equal(if 0).

Let's prove : According to the statement,

a ≥ (a + b)/2 ≥ b

2a ≥ a + b ≥ 2b

2a ≥ a + b and a + b ≥ 2b

a ≥ b and a ≥ b, as we assumed.

Moreover, as the average exists in between a and b, we have the average (a + b)/2. Similarly, there exists one more average of (a + b)/2 and a or b, which definitely lie between a and b as (a + b)/2 lies there and smaller than a and b.

In the same order, we can have many average and the process would stop. This leads to infinite number between a and b.

Notice that we talked about all the numbers moreover there are many irrational(non-terminating like 9.898989.... etc numbers as well.

Option (4), infinite solutions.

Note: we solved for all the number (not specifically odd, even, natural, whole, integer, etc).

The true statement over the interval [-3, 0] is: B. average rate of change of function f is less than that of function g.

Over a given interval, the average rate of change of a function is found using the formula: change in y / change in x = f(b) - f(a) / b - a.

Average rate of change of function g over [-3, 0]:

a = -3, f(a) = 5

b = 0, f(b) = 14

Average rate of change = (14 - 5)/(0 - (-3)) = 3

Average rate of change of function f over [-3, 0]:

a = -3, f(a) = -4.5

b = 0, f(b) = 0

Average rate of change = (0 - (-4.5))/(0 - (-3)) = 1.5

Therefore, the correct answer is: B. average rate of change of function f is less than that of function g.

Learn more about average rate of change on:

https://brainly.com/question/11627203

#SPJ2

Answer:

26

Step-by-step explanation:

Substitute -4 for a and -2 for b

[tex]2a^{2} - 3ab+b^{2}-4a-b\\ 2(-4^{2} )- 3 (-4*-2)+-(2^{2})-4(-4)-2 \\32-24+4+16-2[/tex]

Answer:

Correct option is c, -15

Answer:

x = 10

Step-by-step explanation:

Answer:

E

Step-by-step explanation:

well, yes we know what coins there are and that they’re in jars right? but to find which jar is worth the most, we need to know how many coins are in each. she could have 300 pennies, 2 quarters, 4 dimes, and 7 nickels. we need more information to answer this question so E is the only correct option!

Answer:

yea

Step-by-step explanation:

x=13 so 13-9=4

Answer:

Step-by-step explanation:

Given quadratic equation is,

-32 = 2(x² + 10x)

-32 + 50 = 2(x² + 10x + 25)

18 = 2(x + 5)²

9 = (x + 5)²

± 3 = (x + 5)

x = -2 or x = -8

Answer:

For a general function f(x), the domain is the set of the possible values of x that we can input in the function.

The trick to find the domain is first to assume that the domain is the set of all real numbers, and then let's try to find the values of x that cause a problem in the function. (If the graph is cut in some value of x, such that it ends with an open or a closed point, then these values define the domain).

Such that one of these problems can be like x = 1 in the function:

g(x) = 1/(x - 1)

Because that value causes the denominator to be equal to zero, then the domain of that function will be the set of all real numbers except the value x = 1.

In this case, we have:

f(x) = x^2 - 4

There is no value of x that causes a problem for this function, then the domain is the sett of all real numbers.

Correct option D.

Answer:

6(3x - 4)

Step-by-step explanation:

From the question, we can deduce the following points;

- 6 is multiplied by 3x minus 4

Translating the word problem into an algebraic expression, we have;

6 * (3x - 4)

Answer:

(4,5)

Step-by-step explanation:

Use the midpoint formula

(( x1 + x2)/2, (y1 + y2)/2 )

Answer:

Answer Option B and C

Reason

Others are proportional.

A Non proportional relationship is a graph that does not pass through the origin.

Option A and D has point (0,0) which shows the origin and thus makes it Proportional.

Answer B and C

Answer: No solutions exist because the situation describes two lines that have the same slope and different y-intercepts.

Answer:

[tex]x=15[/tex]

Step-by-step explanation:

Pythagorean theorem: [tex]c^2 = a^2 + b^2[/tex], where c is the longest side (hypotenuse), a and b are the other sides of the right angled triangle.

In this question, c is labelled as [tex]x[/tex].

Therefore, we can use the theorem to find [tex]x[/tex].

[tex]x^2 = a^2+b^2[/tex]

So, substitute in the other sides and solve for [tex]x[/tex].

[tex]x^2 = (9)^2 + (12)^2\\x^2 = 81 + 144\\x^2 = 225\\x = 15[/tex]

We can see the answer is correct because it is meant to be the largest side and [tex]15> 12>9[/tex].

Answer:

71

Step-by-step explanation:

cumulative means all together

Answer:

x=5

Step-by-step explanation:

-x+6=1

-x=1-6

-x=-5

x=5

answer:

point D

step-by-step explanation:

=================================================

Explanation:

Start at the origin (0,0) which is where the x and y axis cross.

Move 4 units to the right, and then move five units down. You'll arrive at the location (4, -5) which is point D

You can think of the (x,y) coordinates as similar to latitude and longitude, or like an address.

Answer:

0.0623 ± ( 2.056 )( 0.0224 ) can be used to compute a 95% confidence interval for the slope of the population regression line of y on x

Step-by-step explanation:

Given the data in the question;

sample size n = 28

slope of the least squares regression line of y on x or sample estimate = 0.0623

standard error = 0.0224

95% confidence interval

level of significance ∝ = 1 - 95% = 1 - 0.95 = 0.05

degree of freedom df = n - 2 = 28 - 2 = 26

∴ the equation will be;

⇒ sample estimate ± ( t-test) ( standard error )

⇒ sample estimate ± ( [tex]t_{\alpha /2, df[/tex]) ( standard error )

⇒ sample estimate ± ( [tex]t_{0.05 /2, 26[/tex]) ( standard error )

⇒ sample estimate ± ( [tex]t_{0.025, 26[/tex]) ( standard error )

{ from t table; ( [tex]t_{0.025, 26[/tex]) = 2.055529 = 2.056

so we substitute

⇒ 0.0623 ± ( 2.056 )( 0.0224 )

Therefore, 0.0623 ± ( 2.056 )( 0.0224 ) can be used to compute a 95% confidence interval for the slope of the population regression line of y on x

Step-by-step explanation:

Centre of circle(h,k)=(1,-4)

radius of the circle(r)=2

Equation of the circle is,

(x-h)^2+(y-k)^2=r^2

(x-1)^2+(y+4)^2=2^2

x^2-2x+1+y^2+8y+16=4

x^2+y^2-2x+8y+13=0 is the req.equation of the circle.

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Answer:

164 hope it helps have a great day Mark me as

Answer:

24

Step-by-step explanation:

Answer: 25 units^2

Step-by-step explanation:

This is the correct answer

Answer:

(a) 160 Naira

(b) Undefined

Step-by-step explanation:

Given

Let:

[tex]y \to[/tex] cost of bag of rice

[tex]x \to[/tex] people demanding the bag

So, we have:

[tex]y\ = \frac{k}{\sqrt x} + c[/tex] ---- The variation

[tex]y = 100; x = 36[/tex]

[tex]y = 150; x = 144[/tex]

We have:

[tex]y\ = \frac{k}{\sqrt x} + c[/tex]

When: [tex]y = 100; x = 36[/tex]

[tex]100 = \frac{k}{\sqrt {36}} + c[/tex]

[tex]100 = \frac{k}{6} + c[/tex] -- (1)

When: [tex]y = 150; x = 144[/tex]

[tex]150 = \frac{k}{\sqrt {144}} + c[/tex]

[tex]150 = \frac{k}{12} + c[/tex]--- (2)

Subtract (1) from (2)

[tex]150 - 100 = \frac{k}{12} - \frac{k}{6} + c - c[/tex]

[tex]50 = \frac{k}{12} - \frac{k}{6}[/tex]

Multiply through by 12

[tex]600 = k - 2k[/tex]

[tex]600 = -k[/tex]

[tex]k = -600[/tex]

To solve for x, we have:

[tex]100 = \frac{k}{6} + c[/tex] -- (1)

This gives:

[tex]100 = \frac{-600}{6} + c[/tex]

[tex]100 = -100 + c[/tex]

[tex]c = 100 + 100[/tex]

[tex]c = 200[/tex]

So, the equation is:

[tex]y\ = \frac{k}{\sqrt x} + c[/tex]

[tex]y = -\frac{600}{\sqrt x} + 200[/tex]

Solving (1): y; when x = 225

We have:

[tex]y = -\frac{600}{\sqrt x} + 200[/tex]

[tex]y = -\frac{600}{\sqrt {225}} + 200[/tex]

[tex]y = -\frac{600}{15} + 200[/tex]

[tex]y = -40 + 200[/tex]

[tex]y = 160[/tex]

Solving (2): x; when x = 200

We have:

[tex]y = -\frac{600}{\sqrt x} + 200[/tex]

[tex]200 = -\frac{600}{\sqrt x} + 200[/tex]

Collect like terms

[tex]\frac{600}{\sqrt x} = 200 - 200[/tex]

[tex]\frac{600}{\sqrt x} =0[/tex]

Cross multiply

[tex]600 =0 * \sqrt x[/tex]

[tex]600 =0[/tex]

x is undefined