Refer to the attachment and answer these questions.
( 1 ). Find the first counting number 'x' in group n.
( 2 ). Find the sum S of all counting numbers in group n.
Please also show your work too so others and I can understand. Thanks in advance!

Answer:

Hope it will help you.....

Step-by-step explanation:

my answer is

P=(4,8,12,16,20)

Q=(5,10,15,20)

The set for P and Q will be {4, 8, 12, 16, 20} and {5, 10, 15, 20}, respectively.

Sets are groups of clearly specified components. The number of items in a finite set is denoted by a curly bracket.

P = {x:x is a multiple of 4, x ≤ 20}

Then the set for P is given as,

P = 5 {4, 8, 12, 16, 20}

Q = (x:x is a multiple of 5, x ≤ 20 } ​

Then the set for Q is given as,

Q = 4 {5, 10, 15, 20}

More about the sets link is given below.

https://brainly.com/question/8053622

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Answer: y=-8

Step-by-step explanation:

If the slope is zero that means that the line does not go up (or have any rise) and therefore must be a horizontal line. Since it passes through the point (3,-8), the equation has to be y=-8.

The independent variable, x, represents the number of questions Riley answered correctly, and the dependent variable is the score, because the score depends on the number of questions Riley answered correctly. A function relating these variables is R(x) = [3x] So R(23) = [69], meaning 23 correct answers will give a score of 69.

In an experiment, there are two (2) main types of variables and these include:

An independent variable can be defined as the variable that is being manipulated by an experimenter or researcher. This ultimately implies that, it is typically considered to be the cause in an experiment and represented by x.

In this scenario, we can infer and logically deduce that the independent variable, x, represents the number of questions Riley answered correctly, and the dependent variable is the score, because the score depends on the number of questions Riley answered correctly. A function relating these variables is R(x) = [3x] So R(23) = [69], meaning 23 correct answers will give a score of 69.

Read more on independent variable here: https://brainly.com/question/82796

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Complete Question:

Riley's math teacher said that each question answered correctly on a test would be worth 3 points. Answer the questions below regarding the relationship between the number of questions correct and the score on the test.

The independent variable, x, represents the ______, and the dependent variable is the ______, because the ______ depends on the

A function relating these variables is R(x) = [] So R(23) = [], meaning 23

Answer:

2x =12

x = 12/2

x= 6

I hope I helped you‌^_^

Answer:

y = 1/2

Step-by-step explanation:

Y+3/5 = 1 1/10

Subtract 3/5 from both sides.

y = 1/2

2(10v - 5) + 5v + 5v =

= 20v - 10 + 5v + 5v =

= 20v + 5v + 5v - 10 = 30v - 10 ← the end

Answer:

hope this helps you

have a great

Answer:

The choose first.

[tex] h = \frac{SA - 2B}{P} [/tex]

Step-by-step explanation:

[tex]SA = Ph + 2B \\ \\ Ph = SA - 2B \\ \\ h = \frac{SA - 2B}{P} [/tex]

I hope I helped you^_^

Answer:

$180

Step-by-step explanation:

Interest for 1 year = 10% of $300

Interest for 6 years

= (10% × 6) of $300

= 60% of $300

= (60/100) × $300

= 60 × $3

= $180

So, he will earn $180 as interest in 6 years.

Answer:

y=1/3x+7

Step-by-step explanation:

1. The given equation is y=1/3x-6 and it has to be parallel passing through (-12,3), so you just plug in the x and y values into the equation y=mx+b with 1/3 as the slope since its parallel (meaning the slope is the same for both eqts)

2. 3=1/3(-12)+b

3. 3=-4+b

4. 7=b

5. So, the equation is y=1/3x+7

Answer:

2

Step-by-step explanation:

2x(5+4)=(_x5)+(_x4)

lets start with 2x(5+4)

(5+4)=9

so we are left with 2x9

2x9=18

so now we have 18=(_x5)+(_x4)

lets try 2 for the blank spaces

18=(2x5)+(2x4)

2x5=10

2x4=8

10+8=18

2x(5+4)=(2x5)+(2x4)

It worked! Hope this helps :)

Answer:

Both blanks equal 2.

Step-by-step explanation:

2*5=10

2*4=8

10+8=18

9*2=18

Answer:

Part 5.1.1:

[tex]\displaystyle \cos 2A = \frac{7}{8}[/tex]

Part 5.1.2:

[tex]\displaystyle \cos A = \frac{\sqrt{15}}{4}[/tex]

Step-by-step explanation:

We are given that:

[tex]\displaystyle \sin 2A = \frac{\sqrt{15}}{8}[/tex]

Part 5.1.1

Recall that:

[tex]\displaystyle \sin^2 \theta + \cos^2 \theta = 1[/tex]

Let θ = 2A. Hence:

[tex]\displaystyle \sin ^2 2A + \cos ^2 2A = 1[/tex]

Square the original equation:

[tex]\displaystyle \sin^2 2A = \frac{15}{64}[/tex]

Hence:

[tex]\displaystyle \left(\frac{15}{64}\right) + \cos ^2 2A = 1[/tex]

Subtract:

[tex]\displaystyle \cos ^2 2A = \frac{49}{64}[/tex]

Take the square root of both sides:

[tex]\displaystyle \cos 2A = \pm\sqrt{\frac{49}{64}}[/tex]

Since 0° ≤ 2A ≤ 90°, cos(2A) must be positive. Hence:

[tex]\displaystyle \cos 2A = \frac{7}{8}[/tex]

Part 5.1.2

Recall that:

[tex]\displaystyle \begin{aligned} \cos 2\theta &= \cos^2 \theta - \sin^2 \theta \\ &= 1- 2\sin^2\theta \\ &= 2\cos^2\theta - 1\end{aligned}[/tex]

We can use the third form. Substitute:

[tex]\displaystyle \left(\frac{7}{8}\right) = 2\cos^2 A - 1[/tex]

Solve for cosine:

[tex]\displaystyle \begin{aligned} \frac{15}{8} &= 2\cos^2 A\\ \\ \cos^2 A &= \frac{15}{16} \\ \\ \cos A& = \pm\sqrt{\frac{15}{16}} \\ \\ \Rightarrow \cos A &= \frac{\sqrt{15}}{4}\end{aligned}[/tex]

In conclusion:

[tex]\displaystyle \cos A = \frac{\sqrt{15}}{4}[/tex]

(Note that since 0° ≤ 2A ≤ 90°, 0° ≤ A ≤ 45°. Hence, cos(A) must be positive.)

Answer:

[tex]\frac{5k -6}{10}[/tex]

Answer:

1/5k + 3/5

Step-by-step explanation:

2/5 * 2/2 = 4/10

4/10k + 1/10k = 5/10k = 1/2k

1/2k + 3/5

Answer:

729x/64

Step-by-step explanation:

Expression: x *(3/2)⁶

Using order of operations (PEMDAS), we solve for the exponent first. So, 3^6 is 729 and 2^6 is 64. Multiple everything together to get 729x/64

Answer:

? is 8

Step-by-step explanation:

The total of the line is 14 and you have KL of your answer which is 6. All you have to do to get JK is subtract 6 from 14.

14 - 6 = 8

15x + 57 ≥ 129

15x ≥ 129 - 57

15x ≥ 72

x ≥ 24/5

x ≥ 4.8

Answer:

[tex]x \geqslant 4.8[/tex]

Step-by-step explanation:

[tex]15x \: \: \: \: + \: 57 \geqslant 129 \\ or \: 15x \geqslant 129 - 57 \\ or \: x \geqslant 72 \div 15 \\ or \: x \geqslant 4.8 \\ [/tex]

Answer:

Its 48 °

Since its a triangle, the total angle will be 180°

So,

x° + 42°+90°=180°(90° as one angle in triangle is 90°)

x°=180°-90°-42°

x°=48°

Answer: 48º c:

Step-by-step explanation:  So basically the angle at the top, lets call it A, is 42º. And the angle at the bottom right, is a right angle, which is 90º. We know this by the square at the angle. If we call this angle B, then through the fact that triangles will always have a combined angle measuremnt of 180º, we can do a + b + x = 180, which will be 42 + 90 = 132, 180 - 132 = 48 :)

Answer: $16.3

Step-by-step explanation: 8.15 * 2 (because there are 2 pound) = 16.3

Answer: it should be 16.30

Step-by-step explanation:

The following correct answer is c.

This I because when you translate using this, you first start with the point (0,0), translate that point down 3 (-3 means down three when outside parenthesis) and translate it to the right 4 units (this shown in a paraptosis, and when you move to the right you say -4, but if you move to the left you say +4)

Lets find out slope

[tex]\\ \sf\longmapsto \dfrac{19-0}{0-(-5)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{19}{5}[/tex]

Now

[tex]\\ \sf\longmapsto y=mx+b[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{19}{5}x+19[/tex]

[tex] - \frac{10}{3} - ( - \frac{7}{5} ) = - \frac{10}{3} + \frac{7}{5} = - \frac{50}{15} + \frac{21}{15} = \\ \\ = \frac{ - 50 + 21}{15} = \frac{ - (50 - 21)}{15} = \frac{ - 29}{15} = - 1 \frac{14}{15} [/tex]

5/7=        -----------

           0.714285

Convert the fraction to a decimal by dividing the numerator by the denominator.

6/10= 0.6

Convert the fraction to a decimal by dividing the numerator by the denominator.

16/20= 0.8

Convert the fraction to a decimal by dividing the numerator by the denominator.

9/10= 0.9

Convert the fraction to a decimal by dividing the numerator by the denominator.  

Answer:

[tex]x > 4[/tex]

Step-by-step explanation:

X is greater than 4

Answer:

C

Step-by-step explanation:

I think this could be it since u have to multiple

64x2.3 Which would be 147.2 but then round up would get u 147

Answer:

17

Step-by-step explanation:

17-38 8 im like hey whats up hello

Answer:

x = 13

Step-by-step explanation:

A linear pair of angles sum to 180° , then

2x + 9 + 10x + 15 = 180 , that is

12x + 24 = 180 ( subtract 24 from both sides )

12x = 156 ( divide both sides by 12 )

x = 13

Since the area of B is 9 times the area of A, we know that the sides of B are √9= 3 times the length of the sides of A.

That's how.