Help! Help! I need to study for tomorrow's math exam. Plz also explain how u got ur answer

Answer:

y = x + 3

y = 3x²

y = [tex]3^{x}[/tex]

Step-by-step explanation:

Relationship1

y = x + 3

y = (0) + 3 = 3

y = (1) + 3 = 4

y = (2) + 3 = 5

Relationship 2

y = 3x²

y = 3(0)² = 0

y = 3(1)² = 3

y = 3(2)² = 3(4) = 12

Relationship 3

y = [tex]3^{x}[/tex]

y = [tex]3^{0}=1[/tex]

y = [tex]3^{1}=3[/tex]

y = [tex]3^{2}=9[/tex]

Answer:

(x + 12)(x + 2)

Step-by-step explanation:

In order to factorize, we first have to break the term in the middle into two terms which add up to 14 and and multiply to 24.

For this, let's take a look at the factor pairs of 24. We have (1, 24), (2,12), (3, 8), (4, 6).

note that the 2nd pair works. 2 + 12 = 14, 2*12 = 24.

And now we rewrite the expression.

x^2 + 14x + 24

= x^2 + 12x + 2x + 24

Take out common factors as below

= x(x + 12) + 2(x + 12)

Note that (x+12) is a common factor in the 2 added expressions. So we take it out.

= (x+12)(x+2)

Done!!! Hope it helps, and if it does, please mark me brainliest...

There are 13 shoppers aged 20 or older. Calculated by summing frequencies of age groups 20-24 through 35-39. Answer: (c) 13.

Of course, I'm happy to help! To find out how many shoppers are at least 20 years old, we need to add up the frequencies of the age groups that are 20 years old and older. Here are the steps:

1. Identify the age groups that are 20 years old and older.

2. Add up the frequencies (the number of shoppers) for those age groups.

Let's assume the histogram provides age groups in 5-year intervals, starting from 0 to 4 years old, then 5 to 9 years old, and so on.

Let's look at the age groups that are at least 20 years old:

1. 20-24 years old

2. 25-29 years old

3. 30-34 years old

4. 35-39 years old

5. 40-44 years old

We add up the frequencies for these age groups:

1. Frequency for 20-24 years old: 5

2. Frequency for 25-29 years old: 4

3. Frequency for 30-34 years old: 3

4. Frequency for 35-39 years old: 1

5. Frequency for 40-44 years old: 0 (since it's not specified in the histogram, we assume it's 0)

Adding these frequencies together:

5 + 4 + 3 + 1 + 0 = 13

So, there are 13 shoppers who are at least 20 years old.

The answer is (c) 13.

Answer:

translated left by 2 units

Step-by-step explanation:

Given y = f(x) then

y = f(x ± a) represents a horizontal translation of a units

• If + a then a shift of a units to the left

• If - a then a shift of a units to the right

Hence

g(x) is the graph of f(x) translated 2 units to the left

The function g(x) = (x+2)^2 + 1 is a transformation of the function f(x) = x^2 + 1. It represents a translation of the graph of f(x) to the left by 2 units.

The function g(x) = (x+2)^2 + 1 is a transformation of the function f(x) = x^2 + 1. Particularly, it's a horizontal shift, not a compression or stretching of the graph. By comparing coefficients, we infer that the +2 inside the parentheses on g(x) represents a shift of the graph of f(x) to the left by 2 units. This is because the rules of transformations dictate that h(x) = (x - h)^2, where h represents a shift to the right, and h(x) = (x + h)^2 represents a shift to the left. Therefore, the correct statement is that the graph of g(x) is translated left 2 units compared to the graph of f(x).

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Answer:

28

Step-by-step explanation:

Using PEMDAS (or something similar) start off with the exponent.

5^2 would equal 25 since it is multiplying 5 by itself.

Then, you would add 3 to 25 making the answer 28.

For this case we must find the value of the following expression:

[tex]3 + 5 ^ 2 =[/tex]

We have that, replacing in a calculator:

[tex]5 ^ 2 = 5 * 5 = 25[/tex]

Rewriting the expression we have:

[tex]3 + 25 =[/tex]

Equal signs are added and the same sign is placed:

[tex]3 + 25 = 28[/tex]

Answer:

[tex]3 + 5 ^ 2 = 28[/tex]

Subtract x from both sides

2x + 3 - x = -4

Simplify 2x + 3 - x to x + 3

x + 3 = -4

Subtract 3 from both sides

x = -4 - 3

Simplify -4 - 3 to -7

x = -7

2x+3=x-4

2x-x= -4-3

x= -7

Check answer by using substitution method

2(-7)+3= -7-4

-14+3=-11

-11=-11

Answer is x=-7

Answer:

12 days

Step-by-step explanation:

Jogging: 6,12,18,24,....

Swimming: 4,8,12,16,20

Looking at the list, the first number in common is 12

The occur together every 12 days

Answer:

Where are the answer choices?

Step-by-step explanation:

Answer:

C: f(x) = (x - 5)(x + 1)

Step-by-step explanation:

Answer:

D) y = -2x -3

Step-by-step explanation:

1. Create a slope-intercept equation: y = -5, m = -2, x = 1

y = mx + d -> y = -2x + d -> -5 = -2(1) + d

Solve: -5 = -2 + d --> d = -3

So, the y-intercept is -3. Putting that into our equation gives us y = -2x -3

ANSWER

The car moves at 32 mi/hr

EXPLANATION

This question is asking us to determine how fast is a train that makes 330 mile trip in 4 hours.

This is the same as calculating the speed of the train:

Speed = distance covered/time taken

The distance covered is 330 mile

The time taken is 4 hours.

Speed =330/4 =82.5 mi/hr

Answer:25%

Step-by-step explanation:

Because 2 is only a quarter of 8 and 25%=quarter from 100%

Answer:

25%

Step-by-step explanation:

Answer:

The short leg is 7 because half of 14 is 7 and the hypotenuse is always twice as long as the shortest one.

The required short leg is 7inches.

Given that,

Hypotenuse = 14 inches,

In triangle 30-60-90

We have to determine,

By using figure find the short leg.

According to the question,

A 30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º.

The triangle is special because its side lengths are always in the ratio of 1: √3:2.

The 30-60-90 triangle rule is for finding the the lengths of two sides when one side is given.

The shorter side is opposite the 30 degree angle, the longer side is opposite the 60 degree angle, and the hypotenuse is opposite the 90 degree angle.

Therefore,

The hypotenuse is always twice as long as the shortest one.

Where, Hypotenuse = 14inches

Then,

[tex]Hypotenuse = 2 \times short \ leg \\\\14 = 2 \times short \ leg\\\\short\ leg = \dfrac{14}{2}\\\\short \ leg = 7[/tex]

Hence, The required short leg is 7inches.

To know more about Pythagoras theorem click the link given below.

https://brainly.com/question/22698523

Answer:

20h=225

Step-by-step explanation:

Answer:

20h=225

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Use the formula for the volume of a cylinder.

[tex]V=\pi r^2h[/tex]

Plug in the height, the radius, and 3.14 for [tex]\pi[/tex].

[tex]V=3.14(15^2)(5) \\ \\ V=3.14(225)(5) \\ \\ V=3.14*1125 \\ \\ V=3532.5[/tex]

If you round that number you'll get [tex]V=3533[/tex].

So the answer is answer choice C.

Answer: This series would have no last term. The general form of the infinite geometric series is a1+a1r+a1r2+a1r3+... , where a1 is the first term and r is the common ratio.

Step-by-step explanation:

Answer:

[tex]S_{\infty}=\frac{80}{3}[/tex]

Step-by-step explanation:

The sum of an infinite geometric series is given by:

[tex]S_{\infty}=\frac{a}{1-r}[/tex],

The given geometric series is

[tex]\sum_{n=1}^{\infty}32(-\frac{1}{5})^{n-1}[/tex]

The constant ratio for this series is

[tex]r=-\frac{1}{5}[/tex]

The first term of the series is [tex]a=32(-\frac{1}{5})^{1-1}=32[/tex]

The sum to infinity is [tex]S_{\infty}=\frac{32}{1--\frac{1}{5}}[/tex]

[tex]\implies S_{\infty}=\frac{32}{\frac{6}{5}}=\frac{80}{3}[/tex]

Answer: C. Mode

Step-by-step explanation:

Qualitative data applies to observable data such as reoccurring patterns (mode)

Quantitative data applies to numbers and numerical calculations (Mean, Median)

Mode is the best way to analyze qualitative data as it makes the analysis easier.

Mode is the most frequently occurring value in the data.

Qualitative data is the descriptive and conceptual findings collected through questionnaires, interviews, or observation. Analyzing qualitative data allows us to explore ideas.

For example

Each child’s gender

His or her favorite color

Whether he or she owns at least one pet

How he or she gets to and from school

In order to analyze the above data,  Mode is the best method because the mode is the most frequently occurring value in data and one can easily analyze the data.

Therefore,  Mode is the best way to analyze qualitative data.

To get more about mode refer:

https://brainly.com/question/14532771

Answer:  C) 11 + 13 + 15 + 17 + ...

Step-by-step explanation:

[tex]\sum\limits^\infty_3 {2x+5}\\\\2(3) + 5\quad +\quad 2(4) + 5\quad +\quad 2(5)+5\quad +\quad 2(6)+5\quad +...\implies 2(\infty)+5\\\\=11\qquad +\qquad 13\qquad \quad +\qquad 15\qquad \quad +\qquad 17\qquad +...[/tex]

Answer

90 degrees , it's a right angled triangle

Step-by-step explanation:

180 - 65 - 25 = 90

The sum of all the interior angles of a triangle equals 180 degrees

a right angled triangle has one 90 degree angle and two different angles

Answer:

The measurement of the third angle is 90 degrees

Step-by-step explanation:

There are 180 degrees in a triangle.

180 - 65 = 115 - 25 = 90

It is a right angled triangle

When a company looks to have someone outside the company do work it is called out sourcing.

The answer is C.

Answer:

The answer is C.

Step-by-step explanation:

Answer:

a. 0.25

b. 0.4

c. 0.66 repeating

d. 0.75

Step-by-step explanation:

a. 1/4 is equal to one quarter which is 0.25

b. 2/5 is equal to 4/10 which equals 0.40 or 0.4

c. 2/3 is 0.6666666 and goes on forever so we would call that a repeating decimal

d. 3/4 is equal to three quarters which would be 0.75

i hope this helps :)

1/4=0.25 2/5=0.4 2/3=0.666666666666667 3/4=0.75

Answer:

See below  

Step-by-step explanation:

This question is about estimation of volumes. Think of a 2 L bottle of pop or a 2 L carton of milk. Could its contents fit inside

Answer:

478 people

Step-by-step explanation:

All you need to do for this problem is simply multiply 239 by 2. If the first 6 rows are 239 people, and so are the next 6, that's all you need to do.

239*2=478

Answer:

y=1 + [tex]\frac{4x}{5}[/tex]

x=-[tex]\frac{5}{4}[/tex] + [tex]\frac{5y}{4}[/tex]

Answer:

Choices are:

p>30

p<30

p=30

not enough information to tell

Answer is p>30

Step-by-step explanation:

Since there are more boys than girls, there must be at least 9 boys.  Plug into equation:  (b+8) represents number of students.  If they each have at least 2 pencils we would use 2(b+8).  Plugging in  9 for the boys we have: 2(9+8)=?

2(17)=34.  So with the minimum number of boys there would be at least 34 pencils, so the answer is p>30

Final answer:

By calculating that p equals 2 times the sum of boys and girls, and that there are at least 9 boys, we find that p (the total number of pencils) must be greater than 30.

Explanation:

To compare the expressions p and 30, let us first define p as the total number of pencils. Since there must be more boys than girls and there are 8 girls, let b represent the number of boys. We can say that b > 8, since there are more boys than girls.

It's also given that each student has at least 2 pencils. Therefore, the minimum total number of pencils p can be calculated by multiplying the total number of students by 2.

This gives us p = 2(b + 8). Because b > 8, let's substitute the minimum number for boys (9), so p = 2(9 + 8) = 34.

Therefore, p > 30.

Answer:

Step-by-step explanation:

(2x-6)(2x-5)

2(x-3)(2x-5)

^ fully factored

x-3=0       2x-5=0

x=3          2x=5

                 x=5/2

Answer:

B

Step-by-step explanation:

It looks like w = 0 which is the value of the x intercept.

If that is so, there was 2500 dollars in the safe to being with.

answer b//////////////////

Answer:

$0.75

Step-by-step explanation:

$0.35+$0.40=$0.75

Answer:

Step-by-step explanation:

.75 cents

Answer:

E = 3(62)

E = 3(36)

E = 108

Answer:

1. same standard deviation, different means

2. same mean, different standard deviation

3. median is higher than the mean

4. mean is higher than the median

Step-by-step explanation:

Answer:

The slope of line parallel to 2x-y = 18 will be 2.

Step-by-step explanation:

Given  

The equation of a line : 2x – y = 18

The standard form of an equation of a line in slope-intercept form is:

y=mx+c

So, we will have to convert the given equation in the standard form.

2x-y=18

-y=-2x+18

-y= -(2x-18)

y=2x-18

The coefficient of x in this form is the slope of the line.

So,

m_1=2

We know that slopes of two parallel lines are equal so if the given line has slope 2, all the lines parallel to this line have slope 2..

For this case, we have by definition, if two lines are parallel then their slopes are equal:

[tex]m_ {1} = m_ {2}[/tex]

We have the following equation:[tex]2x-y = 18[/tex]

We rewrite the equation of the form:

[tex]y = mx + b\\2x-18 = y\\y = 2x-18[/tex]

Thus, a parallel line will have a slope [tex]m_ {2} = 2[/tex]

Answer:

[tex]m_ {2} = 2[/tex]