1. The first three terms and the last term of a finite arithmetic sequence are - 92,- 88. -
84, ...,12.Find the number of terms in the sequence.
A. 20
B. 25
C. 27
D. 30

Answers

Answer 1
Common difference = -88 - (-92)
= 4
First term = -92
Formula -> Tn = First term + (n-1)d

12 = -92 + (n-1)(4)
104 = 4n-4
108= 4n
n= 27

Hope this helps, and please award brainliest if you could!
Answer 2

The number of terms in the given arithmetic sequence is 27 so option (C) will be correct.

What is Arithmetic progression?

The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).

The arithmetic progression has wider use in mathematics for example sum of natural numbers.

Natural number = 1,2,3,4,5,6,7,8...

Now it has the same difference between any two consecutive terms d =2-1 = 3-2

Given the AP;

- 92,- 88, -84, ...,12.

First term (a) = -92

Common difference(d) = -88 + 92 = 4

The nth term or last term = 12

Nth term is given as ;

⇒ a + (n - 1)d

12 = -92 + (n - 1)4

n - 1 = 26

n = 27

Hence "The number of terms in the given arithmetic sequence is 27".

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Related Questions

Find the equation of the line shown

Answers

Answer:

Y = 1/2x + 1/2

Step-by-step explanation:

I'm not sure, but I think this is correct

Answer:

Slope intercept form;

y = mx + b

Where y is the independent variable and x is the dependent variable. 'm' represents the slope, and 'b' represents the y - intercept.

If we look at this graph:-

We can see that the line that intersects the y - axis is half of 1 which is 0.5, so that'll be our y-intercept.

It also rises one and goes over two so that'll be our slope.

To double check, we select two fixed points (1,1) and (3,2), we then divide the y-coordinates by the x-coordinates in the following order: (rise/run)

y2(second y-coordinate) - y1(first y-coordinate)

_____________________________________

x2(second x-coordinate) - x1(first x-coordinate)

2 - 1            1

_____ = ______, the slope is 1/2.

3 - 1            2

Now we format it in slope-intercept form:-

y = mx + b

y = 1/2x + 0.5

Where 1/2 is the slope, and 0.5 is the y-intercept

Rob deposits $1,000 in a savings account at New York State Bank that pays 1.4% interest, compounded monthly.
How much is in his account at the end of one year?
What is the APY for this account to the nearest hundredth of a percent?

Answers

Answer:

14

Step-by-step explanation:

p=$1000

rate percent=1.4%

time=one year

then

1.4/100*100=14

The amount of money in his account at the end of one year will be $1014.90. Then the APY for this account to the nearest hundredth of a percent will be 1.41%.

What is compound interest?

A loan or deposit's interest is computed using the starting principle and the interest payments from the ago decade as compound interest.

We know that the compound interest is given as

[tex]\rm A = P \left (1 + \dfrac{r}{n} \right )^{t \times n}[/tex]

Where A is the amount, P is the initial amount, r is the rate of interest, and t is the number of years.

Rob deposits $1,000 in a savings account at New York State Bank that pays 1.4% interest, compounded monthly.

The amount of money in his account at the end of one year will be

A = 1000 × [1 + 0.014 / 12]¹²

A = 1000 × 1.01409

A = $1014.09

The APY for this account to the nearest hundredth of a percent will be

APY = [(1 + r/n)ⁿ - 1] x 100

APY = [(1 + 0.014 / 12)¹² - 1] x 100

APY = 1.41%

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Round answer to the nearest cent
70% of $50

Answers

Answer:

$35

Step-by-step explanation:

You could just multiply

70 × .5

35

Multiply and verify the result when x=1,y=2
(Xy+xy^2 -1) (2x+3y)

Answers

Sub in the values of X and Y
(1 * 2 + 1 * 2^2 - 1) (2 * 1 + 3 * 2)
PEMDAS. Everything is in parentheses so on to exponents. We have one. 2^2 = 4 so,
(1 * 2 + 1 * 4 - 1) (2 * 1 + 3 * 2)
Next, multiplication and division left to right.
(2 + 4 - 1) (2 + 6)
Addition and subtraction left to right.
(5) (8) or 5 * 8
Start PEMDAS over with the rest now that we’re outside of the original parentheses. No parentheses to navigate, no exponents left, multiplication and division. 5 * 8 = 40

Answer: 40

Find the missing side length of the similar shapes.

Answers

Answer:

15

Step-by-step explanation:

because the sides 15, 25 are corresponding, sides 18, 30 are corresponding, 9 and x (unknown side) are corresponding.  here we discover that the ratio is 3:5 (15:25) and (18:30). so if the ratio of 9 to x is 3:5, the unknown side is 15.

D and E are the mid-points of the sides AB and AC of ΔABC and O is any point
on side BC. O is joined to A. If P and Q are the mid-points of OB and OC
respectively, then prove that DEQP is a parallelogram.

Answers

Check out the diagram below.

Since D and E are midpoints of AB and AC this means midsegment DE is parallel to side BC. Furthermore, it means DE is parallel to PQ because PQ is entirely on BC.

---------

Note how I drew a line from A to O. This forms two triangles ABO and ACO

For triangle ABO, segment DP is a midsegment because D and P are midpoints of AB and OB respectively. This means side DP is parallel to side AO. Keep this in mind as we'll use it later.

For triangle ACO, segment EQ is parallel to AO because EQ is a midsegment for similar reasons as already mentioned (E and Q are midpoints of AC and OC respectively). So this must mean that AO is parallel to EQ

Now chain the arguments together: if DP || AO and AO || EQ, then DP || EQ by the transitive property.

-----------

In short, we've proven two things

DE is parallel to PQDP is parallel to EQ

This is enough to conclude that DEQP is a parallelogram. By definition, a parallelogram has two pairs of opposite parallel sides.

Answer:

Points

Step-by-step explanation:

Determine the discriminant for the quadratic equation -3=x2+4x+1. Based on the
discriminant value, how many real number solutions does the equation have?
Discriminant = b2-4ac

Answers

Given -

x² + 4x + 1 = -3

To find -

the discriminant for the quadratic equation and to find how many real number solutions does the equation have. If it's discriminant = b² - 4ac

Concept applied -

As we know, Discriminant = - 4ac

A quadratic equation a+ bx + c = 0 has -

two distinct real roots, if b² - 4ac > 0 , two equal roots (i.e., coincident roots), if b²- 4ac = 0, and no real roots, if b² - 4ac < 0.

Solution -

Solving the quadratic equation to bring it in the form of ax² + bx + c = 0,

➛ x² + 4x + 1 = -3

➛ x² + 4x +3 + 1 = 0

x² + 4x + 4 = 0

Here,

a = 1, b = 4 and c = 4.

Putting the values in the the formula, b²- 4ac = 0.

➙ (4)²- 4(1)(4)

➙ 16- 16

0

As, b²- 4ac = 0 hence the quadratic equation will have two equal roots (i.e., coincident roots).

Answer:

1 aka b

Step-by-step explanation:

What is the range of this data set?

27,5,11,13,10,8,14,18,7
Help! Will mark brainliest! Promisw

Answers

Answer:

22

Step-by-step explanation:

Range is the highest value - the lowest value so in this case it's:

27-5 = 22

An equilateral triangle has a height of 7 square root 3 cm. Find the perimeter of the triangle.

Answers

Answer:

42

Step-by-step explanation:

Explanation in image

What is the area, in square inches, of the rectangle? Show your work!!

Answers

Answer:

[tex]\huge\boxed{\sf 7 \frac{13}{20} \ in. ^2}[/tex]

Step-by-step explanation:

Length of the rectangle = [tex]\displaystyle 2 \frac{1}{4} = \frac{9}{4} \ in.[/tex]

Width of the rectangle =  [tex]\displaystyle 3 \frac{2}{5} = \frac{17}{5} \ in.[/tex]

Area of the rectangle:

= Length × Width

[tex]\displaystyle = \frac{9}{4} \times \frac{17}{5} \\\\= \frac{9 \times 17}{4 \times 5} \\\\= \frac{153}{20} \\\\= 7 \frac{13}{20} \ in.^2\\\\\rule[225]{225}{2}[/tex]

Answer:

Above is the solution to the question

Malcolm has $638.54 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $159.50 today. Write and solve an inequality to solve for the least amount of money he needs to deposit to avoid a fee. (2 points)


638.54 + 159.50 − x ≥ 500; x ≥ $298.04

638.54 + 159.50 − x ≤ 500; x ≤ $298.04

638.54 − 159.50 + x ≥ 500; x ≥ $20.96

638.54 − 159.50 + x ≤ 500; x ≤ $20.96

Answers

Answer:

638.54 − 159.50 + x ≥ 500; x ≥ $20.96

list angles B,E,C, and D.

Answers

Step-by-step explanation:

Angles A and B form a linear pair, and are thus supplementary. Therefore, the measure of angle B is 180-105=75 degrees.

Angles E and F are a linear pair, and by the same logic, the measure of angle E is 70 degrees.

Since the sum of the measures of the angles in a triangle is 180 degrees, the measure of angle C is 180-75-70=35 degrees.

Since angles C and D are supplementary, the measure of angle D is 145 degrees.

Help please I need it asap

Answers

Answer:

<2 ~= < 4 - Vertical Angles Theorem

<2 ~= <8 - Alternate Exterior Angles

<4 ~= <8 - Corresponding Angles Theorem

line I || line m - Transitive Property

3
Justine and her friends went out for dinner Friday
night. The bill came to $76.96. If they split the bill
evenly and each person paid $19.24, how many
friends, including Justine, were at dinner?

Answers

Answer:

A total of four people

Step-by-step explanation:

Answer:

4

Step-by-step explanation

divide 19.24 from 76.96.

and that gives you how many friends

Marco made $50 for every 2 hours he works, how much will he make in 10 hours?

Answers

Answer:

$500

Step-by-step explanation:

if Marco gets $50 for every 2 hours and it say how much he'll have every 10 hours what your gonna do is multiply 10 by 50 so 10×50= 500 so Marco will make $500 every 10 hours

$250 will he make in 10 hours for the work that Marco has done.

What is multiplication?

When you take a single number and multiply it by several, you are multiplying. There are a number of distinct indications of amplification that people utilize. The "x" sign represents the most typical, however, other symbols like the "*" sign are also occasionally used.

The information that is provided is:

Marco made $50 for the two hours he is working for.

For one hour of the work that he is doing the amount that he will be paid is

= 50 / 2

$25

For working 10 hours Marco will earn

= 10*25

$250

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Hazel deposited $1,000 in her savings account. She earned 6.5% annual simple interest on the first $700 of her deposit and 3.5% simple interest on the remainder, How much interest did Hazel earn
after one year? (1 point)
O $45.00
O $51.00
O $56.00
O $65.00

Answers

Answer:

The answer is C. $56.00
Hazel earned $56.00 in interest after one year.

Step-by-step explanation:

700 x 6.5% =
700 x 0.065 = 45.5

300 x 3.5% =
300 x 0.035 = 10.5

45.5 + 10.5 = 56.00

Please help!! greatly appreciated

Answers

I think the answer is 43.988

Answer:

Today: Sunday, 11 October 2020

Hour: 22.20 WIB (Indonesian)

_________________________

D = 14 cm

π = 3,142

Circumference = π × D

Circumference = 3,142 × 14

Circumference = 43.988 cm

PLEASE HELP ME!!! SOLVE FOR X!!! THANKS!!!!! (look at pic)

Answers

Answer:

x = 698.771

step-by-step explanation:

[tex]\sf \rightarrow \log _{2x}\left(5^{\dfrac{3}{2}}\right)=\dfrac{1}{3}[/tex]

apply ln rules

[tex]\sf \rightarrow \dfrac{\ln \left(5^{\dfrac{3}{2}}\right)}{\ln \left(2x\right)}=\dfrac{1}{3}[/tex]

cross multiply

[tex]\sf \rightarrow \ln \left(5^{\dfrac{3}{2}}\right)\cdot \:3=\ln \left(2x\right)\cdot \:1[/tex]

simplify using calculator

[tex]\sf \rightarrow 7.24247 = ln(2x)[/tex]

shift sides

[tex]\sf \rightarrow e^{7.24247 }= 2x[/tex]

divide both sides by 2

[tex]\sf \rightarrow 698.771= x[/tex]

Answer:

[tex]x=698.771[/tex]

Step-by-step explanation:

[tex]log_{2x} (5\frac{3}{2})=\frac{1}{3}[/tex]

[tex](5\frac{3}{2})*3=In(2x)*1[/tex]

[tex]7.24247=In(2x)[/tex]

[tex]e^{7.24247}=2x[/tex]

÷ [tex]2[/tex]           ÷ [tex]2[/tex]

[tex]698.771=x[/tex]

Which number line shows the correct placement of 10%, 1/4, and 3/4?

Answers

Answer:

<-----10%-----1/4------3/4----->

The top left most answer (or A)

Step-by-step explanation:

Let's get all of these terms into the same representation. Meaning let's convert all of the numbers into either fraction or a decimal or percentage.

I find that fraction would be hard and so would percentage, lets try decimal.

1/4 = 0.25 as a decimal. (1/4 = 25/100 = 0.25) 3/4 = 0.75 (same manner as 1/4) Now for 10%. 10% in technical speaking is equal to 10/100 again which means it would be 0.10.

Okay so now they're all decimals let's put them in ascending order!

0.10, 0.25, 0.75. Yay! Now we can see on a number line the order would be

<-----10%-----1/4------3/4----->

I hope this helps!

RN means registered nurse. LP means licensed practical
nurse. What is the hourly pay for the LP? How much
more is the RN paid for a 40-hour work week than
the LPN?

Answers

Answer:

Answer: B. The law says you must write a new living will each time you re admitted to the hospital.

Explanation:

The law does not require that you make a new will whenever you are admitted to the hospital. Any existing will that has fulfilled the provisions of the law are biding unless the person decides to change the will of their own volition.

There is therefore no need to make a new will every time if there is already one in existence and the person is satisfied with it. The Registered Nurse should therefore correct this statement by the Licensed Practical Nurse.

An art teacher has 2 gallons of paint to pour into containers. If each container holds 1/3 gallon, how many containers can they fill?

Answers

Answer:

Six containers.

[tex]2 \div \frac{1}{3} = 6[/tex]

A flagpole is 12 feet tall. Its shadow is 14 ft long. How far is it from the top of the
flagpole to the end of its shadow?

Answers

Answer:

Step-by-step explanation:

AC = length of flagpole = 12 ft

AB = length of shadow = 14 ft

BC = length from the top of the flagpole to the end of the shadow = x ft

Use Pythagorean theorem to find the length of x,

x² = AC² + BC²

   = 12² + 14²

  = 144 + 196

  = 340

x = √340

x = 18.4 ft

Christopher plays quarterback for a
neighborhood football team. During
his team's first game, he executed
60 plays, 42 of which were successful.
What percent of Christopher's plays
were successful?

Answers

Answer:

70%

Step-by-step explanation:

[tex]42\div60[/tex]

Calculate

[tex]\frac{42}{60}[/tex]

Cross out the common factor

[tex]\frac{7}{10}[/tex]

Multiply a number to both the numerator and the denominator

[tex]\frac{7}{10}\times\frac{10}{10}[/tex]

Write as a single fraction

[tex]\frac{7\times10}{10\times10}[/tex]

Calculate the product or quotient

[tex]\frac{70}{10\times10}[/tex]

Calculate the product or quotient

[tex]\frac{70}{100}[/tex]

Rewrite a fraction with denominator equals 100 to a percentage

[tex]70[/tex]%

I hope this helps you

:)

Can y’all please help me I really need a lot of help

Answers

please mark me the brainlist

i think C took this math class and got an A

Consider the system of equations.
2.+y=0
- 3x + 4y= 22
How do you solve the system of equations with Cramer's rule?
Drag a value or determinant expression into each box to correctly
solve the system using Cramer's rule.

Answers

Answer: See the attached image belowSolutions are x = -2 and y = 4

I've arranged the tiles into the correct positions, and wrote in the final result for each x and y.

The basic idea is to divide determinants as the vertical bars indicate (they aren't absolute value bars).

In each denominator is the determinant of the matrix [tex]\begin{bmatrix}2 & 1\\-3 & 4\end{bmatrix}[/tex] which are the coefficients of the left hand side of each original equation given to you.

-------------

The numerators are a slight variation of this matrix. The x determinant will have you replace the first column with 0 & 22 getting [tex]\begin{bmatrix}0 & 1\\22 & 4\end{bmatrix}[/tex] which helps figure out the x solution. The y solution is similar as well, but we replace the y column instead of the x column. So that explains the [tex]\begin{bmatrix}2 & 0\\-3 & 22\end{bmatrix}[/tex]

After you have the proper determinants set up, you just evaluate each determinant using the formula

[tex]\begin{vmatrix}a & b\\ c & d\end{vmatrix} = a*d - b*c[/tex]

and then simplify the results.

A quadrilateral can be partitioned into two triangles. What is the sum of the angles of a quadrilateral?​

Answers

Answer:

360°

Step-by-step explanation:

Each of the two triangles have 3 angles that add up to 180°.

So,

180° + 180° = 360°

The sum of the angles of a quadrilateral is 360°

find the first six terms of the geometric sequence-1, -3, -9, _, _, _

Answers

Hey there!

A geometric sequence is where we use multiplication or division to get to the next term.

In this case, we use multiplication (we multiply every term by 3)

So we have

-1, -3, -9, -27, -81, -243...

Steps:

Since we multiply every term by 3, we multiply -9 times 3. then we multiply the product of 9 & 3 times 3, and so on...

Hope everything is clear.

Let me know if you have any questions; if oyu do, kindly comment below my answer.

#LearningDoesn'tEnd

[tex]\rule{200}{2}[/tex]

absolute value of 3 ​

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

For example, the absolute value of 3 is 3, and the absolute value of −3 is also 3. The absolute value of a number may be thought of as its distance from zero.

Hope this helps and good luck!

please give me brainliest!

Question 12 of 12 Use the volume formula to find the volume of the prism. A. 18 cubic units B. 4 1/2 cubic units C. 9 cubic units D. 7 cubic units

Answers

Answer:

C. 9 cubic units

Step-by-step explanation:

The formula for the volume of a prism is V=Bh, where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 4 and the width is 3/2 (1 1/2 = 3/2). The area A of a rectangle with length l and width w is A=lw

so the area of the base is 4 x 3/2 which is 6

then we multiply that by the height (3/2) to get 9.

i hope this helped :)

Alma was making soup, her recipe called for 24 potatoes, 15 carrots, and 4 stalks of celery.How many onions should she add, if it needs to be the same amount as the average of the potatoes and carrots?

Answers

Answer:

10

Step-by-step explanation:

Answer:

19.5

Step-by-step explanation:

First, we have to find the average of the pottoes and carrots. To do this we divide the sum of the potatoes and carrots by 2.

24+15=39

39/2=19.5

Alma will need 19.5 onions.

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