please help me with this!!

Please Help Me With This!!

Answers

Answer 1

Explanation:

[tex]a_{5}=15\\a_{5}=\frac{a_{4}}{2}\\15=\frac{a_{4}}{2}\\a_{4}=30\\[/tex]

Each one is actually 1/2 of the one before so,

a5 = 15

a4 = 30

a3 = 60

a2 = 120

a1 = 240


Related Questions

Please help the image is below 22points

Answers

Answer: C

Step-by-step explanation:

-3 is least than -2

Answer:

D. Would be your answer :)

Step-by-step explanation:

i like your pfp, taiga is so cute ^^

Sydney simplifies the expression 2csc(-y) with the work below. What did she do wrong? 2csc(x+y)= 2/sin(x-y)
=2/cos x cos(-y)+sin xsin(-y)
=2/cos x cos y - sin xsin y
=2/cos( x +y)
= 2 sec (x + y)​

Answers

Answer:

We know that:

csc(x) = 1/sin(x)

Now we want to work with:

2csc(x+y)

The first step is:

2csc(x+y)= 2/sin(x-y)

This is correct so far.

Now we need to use the relation:

sin(a + b) = sin(a)*cos(b) + sin(b)*cos(a)

Then:

sin(x - y) = sin(x)*cos(-y) + sin(-y)*cos(x)

sin(x) is an odd function, then: sin(-y) = -sin(y)

and cos(x) is an even function, then:

cos(-y) = cos(y)

Then we get:

sin(x - y) = sin(x)*cos(y) - sin(y)*cos(x)

then:

2/sin(x-y) = 2/(sin(x)*cos(y) - sin(y)*cos(x))

Now let's look at what she did:

2/sin(x-y) = 2/(cos x cos(-y)+sin xsin(-y))

Here is her error, she replaced:

sin(x - y) by cos x cos(-y)+sin(x)sin(-y)

This relation is for the cosine function, not the sine one, so here is her mistake.

Answer:

[tex]sin(\alpha -\beta )\neq cos \alpha[/tex] [tex]cos\beta +sin\alpha[/tex] [tex]sin\beta[/tex]

Step-by-step explanation:

I just did the test

Can someone explain how to solve this?

Answers

9514 1404 393

Answer:

  (2/3)(e^t +1)^(3/2)

Step-by-step explanation:

Use the substitution ...

  u = e^t +1

Then du = e^t and you are finding the integral of ...

  ∫u^(1/2)·du

which you know by the power rule is ...

  (2/3)u^(3/2) = (2/3)(e^t +1)^(3/2)

4) Ray's music album had 15 rock songs, 8 karaokes, 12 hip hops, 10 pop songs,
15 lullabies, 13 jingles and 17 rap songs.
Mean:
Median :
Mode :
Range :

Answers

Answer:

Mean: 12.857

Median: 13

Mode: 15

Range: 9

Step-by-step explanation:

First, let's define what each of these terms mean.

Mean is the average of all the numbers in a set of data. Median is the number in the middle of a set of data after being put in ascending order. Mode is the number most frequently seen in a set of data. Range is the difference between the largest and the smallest number in a set of data.

First, let's go ahead and put all our terms in ascending order. It'll look like this: 8, 10, 12, 13, 15, 15, 17.

To find our mean, we'll add up all the terms and divide them by how many there are. First, we'll add up 8 + 10 + 12... and so on for a total of 90. Next, we'll divide 90 by 7 since there are 7 different terms in our set. 90 / 7 should roughly give you a mean of 12.857, but you can round it as needed.

Next, we'll find the median. The median is the number that is in the exact middle of a set once the terms are put in ascending order. Since, we put our terms in order already, we can see that the number in the middle of our set is 13, and I underlined it in the set to give you a visual!

Next, we'll find the mode. The mode is the number most frequently seen in our set of data. Since 15 is listed the most frequently (twice) it is our mode!

Finally, we'll find the range. The range is just the biggest number minus the smallest number. Our biggest number here is 17, and our smallest number here is 8. Just do 17 - 8 for a range of 9. Let me know if you have any other questions!

This graph shows a proportional relationship between lengths of each side of a regular polygon and the perimeter of the polygon what type of polygon is represented

Answers

The following relationship represents a quadrilateral, that’s my take.

Hi can someone help me out. This is due by the end of the day.​

Answers

4/10 = 2/x

simplify 4/10 into 2/5

2/5 = 2/x

now to prove it algebraically, cross multiply
2x = 10
x = 5

the answer is c

what is the range of 53, 63, 65, 66, 74, 81, 87?

Answers

Answer:

The range is 34!

Step-by-step explanation:

87-53=34

Answer:

34

Step-by-step explanation:

Hope this helps.

What is the fraction for 5copies of 1/5

Answers

Answer:

5 x 1/5 = 1 whole

The key word "of" means multiplication.

Hello pls help meeee last one i swear.

Answers

Answer:

0.006

Step-by-step explanation:

Answer:

0.006 inches of rain

Hope that helps

Which of the following shows the polynomial below written in descending
order?
5x3 - x + 9x + 4 + 3x11
*
Choice
А.
3x11 + 9x + 5x2 - x + 4
В.
4 + 3x11 + 9x + 5x3 - x
C.
3x11 + 9x - x + 4 + 5x3
D.
9x + 5x2 + 4 + 3x11 - x
Your answer

Answers

None of them?

If it was typed correctly, it should be
3x^11 + 5x^3 + 8x + 4

The price listed for 4 dinner plates at a home store is $23.88. What amount will Jane need to pay, if she decides to purchase 10 such dinner plates?

Answers

If you want to answer this, then you’ll first have to figure out how much money the one plate costs. So you would divide $23.88 by 4 and the number you get is how much they paid for one plate.

Next you would have to take the number you get from the division problem and multiply that by 10. That will give you your answer for how much she will need to pay.

Work:
$23.88 / 4 = 5.97
5.97 x 10 = 59.70

She needs to pay $59.70 for the plates.

( negative 9 - 6w) times 10

Answers

Answer:

-3(3+20w)

Step-by-step explanation:

Factor the expression

7. Expresar en notación científica las siguientes
cantidades:
A. 89500000000 mm

Answers

Answer:

8.95 × 10^7

¡Que tengas un hermoso día!

what is 5x + 9 - 2x - 7

Answers

Answer:
3x + 2

How I Found The Answer:
5x + 9 - 2x - 7
= 5x + 9 + -2 + -7
= (5x + -2x) + (9 + -7)
= 3x + 2

Consider the given figure.
Co
an
What information about this figure would be used as a step in a proof of the Pythagorean theorem?
showing that Acos - AABC
showing that ADC+DC2-AC2
showing that AABC - AACD - ACBD

Answers

Answer:

B. showing that AD^2 + DC^2 = AC^2

Step-by-step explanation:

Pythagorean theorem formula: a^2 + b^2 = c^2

^^^^thats all i know, i got the answer from my teacher tho lol

the product of two numbers is 342. if one number is 18, what is the other number.​

Answers

Answer:

19

Step-by-step explanation:

product is the answer of multiplying two numbers together

342/18=19

check

19x18=342

Hello! I’m struggling with this question just if someone could help me!

Answers

Answer: 44sq

Step-by-step explanation:

Trust me :)

4*5=20 cm2
3*6=18 cm2
(9-4-3)*(5-2)=6 cm2
20+18+6=44 cm2 is the area

Expand each expression and collect like terms. a. -3(2p - 3q)

Answers

Answer:

-6p+9q

Step-by-step explanation:

Multiply -3 with 2p and multiply -3 with 3q.

The price of Stock A at 9 A.M. was ​$12.95 Since​ then, the price has been increasing at the rate of ​$0.12 each hour. At noon the price of Stock B was ​$13.70. It begins to decrease at the rate of ​$0.13 each hour. If the two rates​ continue, in how many hours will the prices of the two stocks be the​ same?

Answers

Answer:

The prices of the two stocks will be the same in 1.56 hours.

Step-by-step explanation:

The price of Stock A at 9 A.M. was ​$12.95 Since​ then, the price has been increasing at the rate of ​$0.12 each hour.

This means that after x hours, the value of Stock A is:

[tex]S_{A}(x) = 12.95 + 0.12x[/tex]

After noon:

Noon is 3 hours after 9 AM, so

[tex]S_{A}(3) = 12.95 + 0.12*3 = 13.31[/tex]

So in x hours after noon, the value is given by:

[tex]S_{A}(x) = 13.31 + 0.12x[/tex]

At noon the price of Stock B was ​$13.70. It begins to decrease at the rate of ​$0.13 each hour.

This means that after x hours, the value of Stock B is:

[tex]S_{B}(x) = 13.70 - 0.13x[/tex]

In how many hours will the prices of the two stocks be the​ same?

This is x for which:

[tex]S_{A}(x) = S_{B}(x)[/tex]

[tex]13.31 + 0.12x = 13.70 - 0.13x[/tex]

[tex]0.25x = 0.39[/tex]

[tex]x = \frac{0.39}{0.25}[/tex]

[tex]x = 1.56[/tex]

The prices of the two stocks will be the same in 1.56 hours.

A 10-pound bag of wildflower seed covers 25 square feet. How many pounds of seed does it take to cover 1 square​ foot?

Answers

Answer:

0.4 pounds

Step-by-step explanation:

10 pounds / 25 square feet

to get the number of pounds per feet

10 / 25 = 0.4

so, your answer is 0.4 pounds per 1 square foot

explain how you can use multiplication to write a fraction that is equivalent to 3/5​

Answers

Answer: just multiple the numerator and denominator by the same number

Step-by-step explanation:

For f(x) = -4x + 2, find f(1).

Answers

9514 1404 393

Answer:

  f(1) = -2

Step-by-step explanation:

Put 1 where x is and do the arithmetic.

  f(1) = -4·1 +2

  f(1) = -4 +2

  f(1) = -2

Use elimination to solve the system
2x-y=10
8x+y=20
Please someone help I need help so bad I’m so scared I’m gonna fail this test I may get held back if I fail this test please help me

Answers

Use elimination to cancel y. Add both systems together:
2x + 8x - y + y = 10 + 20

Combine like terms:
10x = 30

Divide by 10:
x = 3

Plug x back in to solve for y:
2(3) - y = 10
6 - y = 10

Subtract 6:
-y = 4

Divide by -1:
y = -4


So your solution is x = 3 and y = -4 which is also written as (3, -4).

I need help understanding how to solve an equation like this I'm struggling bad​

Answers

Answer:

plot 1 on the y axis first, go up one point, to the right 3, then keep this pattern going

Step-by-step explanation:

next plug in x values (1/3x)

D= domain, which is located on the x axis

for this reason, substitute D values for x

Remember to simplify your answer (make improper fractions mixed numbers) 3 : 4. 5 ​

Answers

Answer:

1:1.5

Step-by-step explanation:

i dont know if thats the answer u want but ye

how far apart are (10,8) and (-6,8)?
HELP ME!!

Answers

Answer: 16 units

Since both Y Values are the same, look at the X values. 10 and -6. How far apart is 10 from -6? (10 - (-6) = 16)

16 units, good luck!

50 points! Correct answer will get brainliest. Random answers will be reported

Answers

Answer:

4, -8

Step-by-step explanation:

Answer: The answer is <-4, -8>

Step-by-step explanation:

What is 57 x 4?
Enter your answers in the boxes to complete the area model.

Answers

Answer:

200 + 28= 228

..................

The values of the numbers in the boxes is 57 x 4 = 200 + 28 = 228

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first number be represented as p

where the value of p = 57

Let the second number be represented as q

where the value of q = 4

And , A = 57 x 4

where the blank spaces in the boxes are by distributive property and

A = 57 x 4

( 50 + 7 ) 4 = ( 50 x 4 ) + ( 7 x 4 )

On simplifying the equation , we get

A = 200 + 28

A = 228

Therefore , the value of A is 228

Hence , the expression is A = 228

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ6

which expression is equivalent to (x2-7/5x-4) - (2x+9/5x-4)

Answers

Answer:

its b on edge 2020

Step-by-step explanation:

What is the area of the figure?
10 inches
8 inches
6 inches
16 inches

Answers

I’m pretty sure it’s 10 and 16
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