if the nth term of a sequence is
45 -9n what is the 8th term?​

Answers

Answer 1

Answer:

- 27

Step-by-step explanation:

To find the 8 th term substitute n = 8 into the formula, that is

a₈ = 45 - 9(8) = 45 - 72 = - 27


Related Questions

Find the sum of the integers from -6 to 57.

Answers

51

Step-by-step explanation:

57 + (-6)=51

since 6 is negative you subtract 6 from 57

What is the probability a King is chosen? Express your answer as a fraction, in simplest form.
A(1/52
B(1/13
C(1/4
D(4/13

Answers

Answer:

1/13

Step-by-step explanation:

In a deck of 52 cards, there are 4 kings

P(king) = number of kings / total cards

P (king) = 4/52

             = 1/13

Describe the graph of y+3x^2 and compare it with the graph of y=x^2

Answers

Answer:

y = 3x^2 is compressed by 3.

As y = x^2 is the parent graph, you can see how big a difference 3 makes.

Hope this helps!

(Red: y = 3x^2)

(Blue: y = x^2)

The transformation for the given function is vertical compression or stretch.

The given functions are y=3x² and y=x².

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

The graph for the given functions can be determined as follows

To find the transformation, compare the expression to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Horizontal Shift: None

Vertical Shift: None

Reflection about the x-axis: None

Reflection about the y-axis: None

Vertical Compression or Stretch: Compressed

Therefore, the transformation for the given function is vertical compression or stretch.

To learn more about the function visit:

https://brainly.com/question/28303908.

#SPJ5

When the equation 2x+15−−−−−−√−x=0 is solved correctly, the solutions are x=−3 and x=5.
Which, if any, of the solutions are not valid?
A) The solution x=−3 is not valid.
B) The solution x=5 is not valid.
C) Neither solution is valid.
D) Both solutions are valid.

Answers

B x=5 is not valid Bc that would =10

3) $1,470 at 5% compounded
semiannually for 4 years

Answers

Answer:

29400

Step-by-step explanation:

Im pretty sure

WILL GIVE BRAINLIEST

Answers

Answer:

10/3

Step-by-step explanation:

6 length is 2 height.

So 10(6+4) length is 10/3 height

Answer:

x = 10/3

Step-by-step explanation:

These two triangles are similar by AA similarity, as they share angle A, and both have right angles.

Not we can set up a ratio:

6/(6+4) = 2/x

6/10 = 2/x

3/5 = 2/x

Multiply both sides by 5x,

3x = 10

Divide both sides by 3:

x = 10/3

2 Points
Choose the number below that represents the digit in the tens place of the
number 184
A. 8

B. 4

C. 1

D. 10

Answers

The answer is A because 4 is obviously ones than after ones is tens and 8 is in that place , Hope this little explanation helps

Add the polynomials.

(x2−11x+6)+(x2+5)

Answers

Answer:

[tex] \boxed{2 {x}^{2} - 11x + 11} [/tex]

Step-by-step explanation:

[tex] = > ( {x}^{2} - 11x + 6) + ( {x}^{2} + 5) \\ \\ = > {x}^{2} - 11x + 6 + {x}^{2} + 5 \\ \\ = > {x}^{2} + {x}^{2} - 11x + 6 + 5 \\ \\ = > 2 {x}^{2} - 11x + 11[/tex]

Answer:

2x^2 - 11x +11

Step-by-step explanation:

combine like terms

Classify the real number.
-8
[mark all correct answers]
nts
a. Rational
b. Integers
c. Whole
d. Natural
e. Irrational
72

Answers

Answer:

a,c

Step-by-step explanation:

Lucia surveyed the students in her class and made a dot plot of the results. What question could Lucia have asked?

Answers

Answer:

How many days do you exercise in a week?

Step-by-step explanation:

The topic is students' weekly exercise so the question has to be about that. also, there are up to 7 days worth of data and there a 7 days in a week. so she most likely asked the question, "How many days do you exercise in a week?".

Which of the trigonometric expressions represent an inverse function?

Answers

Answer:

the second one:

tan-1(xdegree)

Step-by-step explanation:

Slope of the line that passes through (2,1) and (8,4), please!

Answers

Answer:

Slope is 1/2

Step-by-step explanation:

Slope Formula: [tex]\frac{y_{1}-y_{2}}{x_{1}-x_{2}} \\[/tex]

Plug in points: [tex]\frac{4-1}{8-2} =\frac{3}{6}=\frac{1}{2}[/tex]

\frac{(2_1-4_{2}) ^{4} } {2}

I will give you brainliest

Answers

Answer:

I think the answer is 8

Step-by-step explanation:

Please help! 19 points! Brainliest to best answer! Solve for the following equation step by step and justify your steps when using an exponential property. [tex]7x^4=\frac{7^2*7^3}{7^3^x}[/tex]

Answers

Answer:

ummm i dont know but try 16 35/21

Step-by-step explanation:

Answer: x^4 /7^3x-6

Step-by-step explanation:

7x^4 * 7^5 / 7^3x

7x^4 * 1 / 7^3x-5

Reduce expression with 7

x^4 * 1 / 7^3x-6

= x^4 / 7^3x-6

For 20 points

Please Help it is due today and I I don't get how to find the height. I am a 7th grader and it is a 6th grade work for the whole class. I didn't even do this in 6th grade it is hard

Please Help

Answers

Answer:

The height of trapezoid is 7km.

Step-by-step explanation:

Given that the area of trapezoid formula is A = 1/2×(a+b)×h where a and b represents the length and h is the height. By substituing the values, you are able to find the height :

[tex]area = \frac{1}{2} \times (a + b) \times h[/tex]

Let a = 4km,

Let b = 8km,

Let area = 42km²,

[tex]42 = \frac{1}{2} \times (4 + 8) \times h[/tex]

[tex]42 = \frac{1}{2} \times 12 \times h[/tex]

[tex]42 = 6 \times h[/tex]

[tex]6h = 42[/tex]

[tex]h = 7 \: km[/tex]

Answer: 7km

Step-by-step explanation:

 

Any one know this pls explain how u figured it out

Answers

Answer:

x=236

Step-by-step explanation:

44+80+x=360

x=solve it

the math question is attached below
and please explain how you got the answer

Answers

Answer:

[tex]20\pi units^3[/tex]

Step-by-step explanation:

Answer:

V = 62.8 units³

Step-by-step explanation:

Once the area of a circle is:

[tex]A=\pi r^2[/tex]

The volume of a cylinder is:

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

where [tex]h[/tex] is the height of the cylinder.

Once, [tex]r=2 \text{ and } h=5[/tex]

[tex]V=3.14 \cdot 2^2 \cdot 5\\V=3.14 \cdot 20\\V=62.8 \text{ units cubed}[/tex]

HELP IMPORTANT In one U.S.​ city, the taxi cost is $2 plus $0.50 per mile. If you are traveling from the​ airport, there is an additional charge of $6.00 for tolls. How far can you travel from the airport by taxi for ​$38.00​?

Answers

Answer:

60 miles

Step-by-step explanation:

f(x) = 2 + 0,5 * m + 6

38 = 2 + 0,5 * m + 6

38 = 8 + 0,5 * m

30 = 0,5 * m

m = 60 miles

The math question is attached below.
FOR 13+POINTS

Answers

Answer:

91.7

Step-by-step explanation:

V = π x r² x h

V = π x 2² x (8-0.7)

V = π x 4 x 7.3

V = 91.73

Thomas has 4 blocks colored blue, red ,green and yellow. How many different ways can he combine them on a shelf?

Answers

64 different possibilities are there

Simplify the expression completely:

4x^2+2x-42/4x /(x-3)

Answers

Answer:

(x (8 x^2 - 20 x + -33))/(2 (x - 3))

Step-by-step explanation:

Simplify the following:

4 x^2 + 2 x - (42 x)/(4 (x - 3))

The gcd of 42 and 4 is 2, so 42/4 = (2×21)/(2×2) = 2/2×21/2 = 21/2:

4 x^2 + 2 x - x/(x - 3) 21/2

Put each term in 4 x^2 + 2 x - (21 x)/(2 (x - 3)) over the common denominator 2 (x - 3): 4 x^2 + 2 x - (21 x)/(2 (x - 3)) = (8 (x - 3) x^2)/(2 (x - 3)) + (4 (x - 3) x)/(2 (x - 3)) - (21 x)/(2 (x - 3)):

(8 x^2 (x - 3))/(2 (x - 3)) + (4 x (x - 3))/(2 (x - 3)) - (21 x)/(2 (x - 3))

(8 (x - 3) x^2)/(2 (x - 3)) + (4 (x - 3) x)/(2 (x - 3)) - (21 x)/(2 (x - 3)) = (8 (x - 3) x^2 + 4 (x - 3) x - 21 x)/(2 (x - 3)):

(8 x^2 (x - 3) + 4 x (x - 3) - 21 x)/(2 (x - 3))

Factor x out of 8 (x - 3) x^2 + 4 (x - 3) x - 21 x, resulting in x (8 (x - 3) x^(2 - 1) + 4 (x - 3) - 21):

(x (8 x^(2 - 1) (x - 3) + 4 (x - 3) - 21))/(2 (x - 3))

2 - 1 = 1:

(x (8 x (x - 3) + 4 (x - 3) - 21))/(2 (x - 3))

8 x (x - 3) = 8 x^2 - 24 x:

(x (8 x^2 - 24 x + 4 (x - 3) - 21))/(2 (x - 3))

4 (x - 3) = 4 x - 12:

(x (4 x - 12 + 8 x^2 - 24 x - 21))/(2 (x - 3))

Grouping like terms, 8 x^2 + 4 x - 24 x - 21 - 12 = 8 x^2 + (-24 x + 4 x) + (-12 - 21):

(x (8 x^2 + (-24 x + 4 x) + (-12 - 21)))/(2 (x - 3))

4 x - 24 x = -20 x:

(x (8 x^2 + -20 x + (-12 - 21)))/(2 (x - 3))

-12 - 21 = -33:

Answer: (x (8 x^2 - 20 x + -33))/(2 (x - 3))

Simplify the following expression:

2x − 2y + 5z − 2x − y + 3z

x − 3y + 8z
2x − 2y + 8z
3y + 8z
−3y + 8z

Answers

Answer:

-3y+8z

Step-by-step explanation:

Here we want to combine all the like terms together to simplify the expression:

2x-2y+5z-2x-y+3z=\\ 2x-2x-2y-y+5z+3z=\\ -3y+8z

Answer:

a

Step-by-step explanation:

URGENT!!!! What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x - 2)?

Answers

Answer:

[tex]x=4[/tex]

Step-by-step explanation:

[tex]1.5(x + 4) - 3 = 4.5(x - 2)[/tex]

[tex]1.5x+6-3=4.5x-9[/tex]

[tex]1.5x+3=4.5x-9[/tex]

[tex]3+9=4.5x-1.5x[/tex]

[tex]12=3x[/tex]

[tex]x=4[/tex]

Answer:

[tex]x = 4[/tex]

Step-by-step explanation:

[tex]1.5(x + 4) - 3 = 4.5(x - 2) \\ 1.5x + 6 - 3 =4.5x - 9 \\ 6 - 3 + 9 = 4.5x - 1.5x \\ 12 = 3x \\ \frac{12}{3} = \frac{3x}{3} \\ x = 4[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Please help me answer this question.

Answers

Answer: 5 miles

Step-by-step explanation:

Hi can I please get some help please thank you please please I need it WILL MARK AS BRAINLIEST !!!

Answers

Answer: D

Step-by-step explanation:

A and C are linear equations therefore we can eliminate them.

We are left betwen C and D.

C.

x²=25

x=5, x=-5

For C, we can eliminate because when you solve for x, you get 2 linear equations. You may see the x² and think it's linear, but when you solve it, you get 2 linear equations.

We are left with D. Even if you graph it and it doesn't look like a parabola or quadratic, it is still a quadratic equaiton. The 1/ makes it split both ways.

PLEASE HELP WILL GIVE BRAINLIEST AND 20 POINTS

add these fractions and select the simplified answer

m+n/6mn + m-n/2mn
or
[tex]\frac{m+n}{6mn} + \frac{m-n}{2mn}[/tex]

Answers

Answer:

2m-n / 3mn

Step-by-step explanation:

combine the fractions by finding a common denominator
3(m-n) (m+n) / 6mn= (m-n)(m+n)/2mn

what is the difference between the greatest and least amount of juice? could you please tell me how to do it

Answers

Answer:

More juice.

Step-by-step explanation:

The difference between the greatest and least amount of juice is that there is more juice in one cup. If this is not the answer you were looking for, please let me know, and I am sorry for the inconvienience.

Zeke goes to a skate shop with his friend Tristan. Tristan buys a helmet that costs $28.75. Zeke finds a helmet that is [tex]\frac{3}{5}[/tex] of the cost of Tristan's helmet. If Zeke gives the cashier a $20 bill, how much change will he receive.

Answers

Answer: $2.75

Step-by-step explanation:

Zeke's helmet cost 3/5 x 28.75 = 17.25

Change = 20 - 17.25 = 2.75

Answer:

2.75

Step-by-step explanation:

PLZZ HURRY

q1)
Simplify. 6(5p^3 − 6p)

Answers

Answer:

30p^3−36p

Step-by-step explanation:

6(5p^3−6p)

=(6)(5p^3+−6p)

=(6)(5p^3)+(6)(−6p)

=30p3−36p

Answer:

30p^3−36p

Step-by-step explanation:

6(5p^3−6p)

(6)(5p^3+−6p)

(6)(5p^3)+(6)(−6p)

=30p^3−36p

This is not copied i did the work!

Which expression is equivalent to the given expression?
(12g^2h^7)(3g^-2h^-4)

Answers

Answer:

B

Step-by-step explanation:

(12g²h⁷)(3g⁻²h⁻⁴) = 12 * 3 * g²⁺⁽⁻²⁾ * h⁷⁺⁽⁻⁴⁾

                            = 36 * g⁰ * h³

                            = 36 * 1 * h³

                            = 36h³

Any variable or constant to the power of zero is 1

a⁰ = 1 ;    12⁰ = 1  ;   (-5)⁰ = 1

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