Can you help me find the missing number I have an exam tomorrow and I really need to know the answer

(2/3)^ =16/81

Find the answer for ^

Two conditions under which we can assume that the sample means follow a normal distribution are as follows:

1). If the sample size is large​ enough, n greater than or equals 30, the sampling distribution is approximately normal regardless of the shape of the population.

2). In order to be considered a normal distribution, a data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean.

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If the function is vertically stretched by 4, the resulting function will be g(x) = 4(2)^x

Exponential function is written in standard form as y=  ab^x

where

a is the base

x is the exponent

Given the following exponential function f(x) = 2^x. If the function is vertically stretched by 4, the resulting function will be g(x) = 4(2)^x

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Answer:

The side splitter theorem.

Step-by-step explanation:

You have a pair of parallel lines intersecting a triangle.

Answer:

2

Step-by-step explanation:

3/4=6/8

(6/8)/(3/8)=2

Answer:

I think it's C

Step-by-step explanation:

Hope it helps

In the function, the thing that is represented is the area of the walkway along the length of the flower patch.

From the information given, Sam created function A to represent the total area taken up by the flower patch and walkway by multiplying the functions modeling the new total length and width.

Therefore, the thing that is represented is the area of the walkway along the length of the flower patch.

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Answer:

Step-by-step explanation:

The compound inequality that represents the given graph is x < -2 or x ≥ 4. The correct option is B. x < -2 or x ≥ 4

From the question, we are to write the compound inequality that represents the given graph

In the graph, we have

x < -2

or

x ≥ 4

Hence, the compound inequality that represents the given graph is x < -2 or x ≥ 4. The correct option is B. x < -2 or x ≥ 4

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Answer:

2

Step-by-step explanation:

By the triangle proportionality theorem,

[tex] \frac{12}{2y - 1} = \frac{4y - 4}{1} \\ \\ 12 = (2y - 1)(4y - 4) \\ \\ 12 = 8 {y}^{2} - 12y + 4 \\ \\ 8 {y}^{2} - 12y - 8 =0 \\ \\2 {y}^{2} - 3 y - 2 = 0 \\ \\ (2y + 1)(y - 2) = 0[/tex]

From this, we know that y = -1/2 or 2.

However, as distance must be positive, we disregard the negative case, giving us y = 2.

Answer:

Step-by-step explanation:

ΔABC ≅ ΔDEF

The length AB = 28 and the length of DE = 7. Since these are corresponding sides, we know that DEF= 1/4 (ΔABC)

So, since ΔABC = 160, we know that ΔDEF will be 1/4 of that, meaning that ΔDEF is 40.

ΔDEF = 40cm²

Answer:

10 cm2

Step-by-step explanation:

The ratio per side is 28/7 = 4

When two similar figures have a ratio of 4:1, the difference between their areas is:

[tex](4)^{2} :(1)^{2}[/tex]

[tex]16:1[/tex]

That is, the dimension of the area of the largest figure is 16 times larger than the smallest figure.

So for this case:

the area of the larger figure is

ΔABC = 160 sq.cm

Then the area of the minor figure is:

ΔDEF= 160/16 = 10 sq.cm

Hope this helps

Answer:

15

Step-by-step explanation:

→ Write the ratio of men to days to hours

30 : 12 : 8

→ Write the new proportion

24 : x : 8

→ Find the multiple between 30 and 24

1.25

→ Multiply by 12

12 × 1.25 = 15

The setup boxes in the synthetic division are (b)

The dividend is given as:

x^3 + 4x^2 + x - 6

The divisor is given as:

x - 2

Set the divisor to 0

x - 2 = 0

Solve for x

x = 2

Remove the variables in the dividend

1 + 4 + 1 - 6

Remove the arithmetic signs

1  4  1 - 6

So, the setup is:

2 | 1  4  1 - 6

Hence, the setup boxes are (b)

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Answer:

It is not a function

Step-by-step explanation:

A function refers to a set of points/lines with this characteristic:

Each Y value has only one corresponding X value.

Meaning one X value cannot have multiple Y Values.

In this case, the X value of 2 has 2 different Y values, making it not a function.

The easiest way to find the slope of a line given in standard form is to put it into slope-intercept form.

Slope-intercept form: y = mx + b

---m is the slope, b is the y-intercept

10x + 5y = 4

5y = -10x + 4

y = -2x + 4/5

The slope of the line is -2.

Hope this helps!

Because we can't divide by zero, csc(θ) is undefined when θ = 0°, so the correct option is A.

First, remember that:

[tex]csc(\theta) = 1/sin(\theta)[/tex]

And also remember that we can't divide by zero.

Then the function csc(θ) is undefined for the values of θ such that sin(θ) = 0.

We know that sin(0°) = 0.

Then csc(0°) is undefined. This means that the correct option is the first one.

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Answer:

[tex]\frac{(20x+12)}{2}[/tex] and [tex]\sqrt{100x^2+36}[/tex]

Step-by-step explanation:

The expression 2(5x + 3) equals 10x + 6

One other way to get 10x + 6

[tex]\frac{(20x+12)}{2}[/tex]

finally, you could do:

[tex]\sqrt{100x^2+36}[/tex]

The solution to the system of equation graphed is (-1, -3)

Given the system of equations graphed on the plane expressed as:

f(x) = 3x

g(x) = 4x + 1

Equate

f(x) = g(x)

3x = 4x + 1

3x - 4x = 1

-x = 1

x = -1

Determine the value of y

y = 3x

y = 3(-1)

y = -3

Hence the solution to the system of equation graphed is (-1, -3)

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At the end of week 3, plant 1 is 0.6 inches taller than plant 2.

For plant 1, the height (in inches) equation as a function of the number of weeks is:

[tex]h_1(w) = 2.5 + \frac{4}{10}*w[/tex]

The height for w = 3 is:

[tex]h_1(3) = 2.5 + \frac{4}{10}*3 = 3.7[/tex]

So the height at the end of week 3 is 3.7 inches.

For plant 2 the equation is:

[tex]h_2(w) = 2.5 + \frac{1}{5}*w[/tex]

The height for w = 3.

[tex]h_2(3) = 2.5 + \frac{1}{5}*3 = 3.1[/tex]

So the height at the end of week 3 is 3.1 inches.

The difference is:

3.7 in - 3.1 in = 0.6 in

At the end of week 3, plant 1 is 0.6 inches taller than plant 2.

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Answer:

y=2/3(x-3)^2+1

Step-by-step explanation:

The parent function of a parabola is y=x^2:

The transformation of this graph shows the parabola is shifted to the right 3 and up 1 so we apply that to our equation y=(x-3)^2+1

to solve the stretch factor:

y=a(x-3)^2+1

we can see when x=0 y=7 so we use this set

7=a(0-3)^2+1

7=a(-3)^2+1

-1            -1

6=9a

divide by 9

a=2/3

Answer:

4.47

Step-by-step explanation:

4^2+b^2=6^2

16+b^2=36

-16. -16

√b^2=√20

b=4.47

Answer:

Distance on the graph is representing the distance from Michelle's home. On her morning jog, Michelle ran to the end of her street, turned around and jogged at a slower pace back home.

Answer:

cheeseburger costs $1.25

Step-by-step explanation:

let x be the cost of a cheeseburger and y the cost of chilli and set up 2 simultaneous equations, that is

12x + 4y = 19.4 → (1)

8x + 6y = 16.6 → (2)

multiplying (1) by 6 and (2) by - 4 and adding the result will eliminate y

72x + 24y = 116.4 → (3)

- 32x - 24y = - 66.4 → (4)

add (3) and (4) term by term to eliminate y

40x + 0 = 50

40x = 50 ( divide both sides by 40 )

x = 1.25

the cost of a cheeseburger is $1.25

Answer:

The answer will be the 3rd option, 12.8

Step-by-step explanation:

I'm gonna assume that since you copy and pasted the question, the equation is actually s - 0.2t^2

Now we just need to substitute the values with their respective ones.

20 - 0.2(6)^2

Now we just have to solve :)

20 - 0.2(6)^2

= 12.8

So the answer will be the 3rd option, 12.8

Hope this helped! :D

The height of the wall from the question is 13.27ft

The theorem states that the square of the longest side is equal to the sum of square of other two sides.

From the given question

Hypotenuse (ladder length) = 15ft

Adjacent = 7feet

Required

Height of the wall H

According to the theorem

15² = 7² + H²

H² = 225 - 49

H² = 176

H = 13.27feet

Hence the height of the wall from the question is 13.27ft

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The first quartile of the data set is 28.

From the question, we are to determine the first quartile of the given data set

The first quartile or lower quartile, (Q1), is the value under which 25% of data points are found when they are arranged in increasing order.

The given data set is

14,28,33,42,53,81,97

In the given data set, the first quartile is 28.

Hence, the first quartile of the data set is 28

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Two points that lie on the graph of f^-1(x) are (7, -1) and (6,1)

The table of values is given as:

x       f(x)

-1       7

1        6

3       5

4      1

6    -1

Swap the points to determine the inverse function f^-1(x)

x       f^-1(x)

7       -1

6        1

5       3

1        4

-1      6

The points from the above table are (7, -1) and (6,1)

Hence, two points that lie on the graph of f^-1(x) are (7, -1) and (6,1)

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Answer:

1/6

Step-by-step explanation:

Answer:1\6

Step-by-step explanation: