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4 years ago

Plsss help me !!! 10 points giving for answer

Mathematics

2 answers:

horsena [70]4 years ago

6 0

Answer:

Step-by-step explanation:

each one can be multiplied by 4 to get the cost

Alja [10]4 years ago

6 0

The answer is the letter D (and I only got 5 points)

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the terms in the sequence increase by the same amount each time ? ? 17 ? ? 29 a)work out the missing terms b)work out in terms o

JulijaS [17]

Answer:

The missing terms are 9,13,21 and 25

The nth term is 4n + 5

Step-by-step explanation:

From the arrangement, we can see that 17 is the third term while 29 is the 6th term

Now is this sequence arithmetic or geometric?

Since it increases by the same amount each time, then it is an arithmetic sequence.

Mathematically the third term in an arithmetic sequence with first term a and common difference d is ;

a + 2d = 17 •••••(i)

While for the sixth term, we have

a + 5d = 29 ••••••(ii)

The equations are obtainable for the nth term of an arithmetic sequence which can be written as;

Tn = a + (n-1)d

where a is the first term, n is the term number and d is the common difference

Now solving both equations simultaneously;

We can subtract equation i from ii

Thus;

5d-2d = 29-17

3d= 12

d = 12/3 = 4

we can substitute the value of d in any of the equations to get a

let’s use 1

That would be;

a + 2d= 17

a + 2(4) = 17

a + 8 = 17

a = 17-8

a = 9

Now the first term is 9

Second would be 9 + 4 = 13

Fourth would be 3rd + d = 17 + 4 = 21

Fifth would be 4th + d = 21 + 4 = 25

So the sequence now correctly arranged would be;

9,13,17,21,25,29

where 9,13,21 and 25 are the missing terms

b. Mathematically the nth term of the sequence is

a + (n-1)d

let’s substitute the values of a and d , we have

9 +(n-1)4

9 + 4n-4

4n + 5

8 0

3 years ago

Find the approximate value of √191 to the nearest tenth. What 2 numbers does it fall between when placed on a number line?

meriva

The approximate value of √191 to the nearest tenth is 13.8 and the two numbers that should fall on the number line is between 13-13.5.

Given that,

The square root of √191.

So, the approximate value of √191 is

$= \sqrt{191} \\\\= 13.82\\\\$

= 13.8

It shows that the two numbers that should fall between at the time when place on the number line is between 13-13.5.

Therefore we can conclude that the approximate value of √191 to the nearest tenth is 13.8 and the two numbers that should fall on the number line are between 13-13.5.

Learn more about the number line here: brainly.com/question/16191404

7 0

3 years ago

What is the sale price of the vacuum cleaner?

leonid [27]

Answer:

95.99

Step-by-step explanation:

8.97 / 44.86

.19995 --> 19.995 % discount

119.99 x .19995 = 23.9926 off of price

119.99 - 23.9926 = $95.99

8 0

4 years ago

Identify the percent of change as an increase or a decrease.

icang [17]

Answer:

30% decrease

Step-by-step explanation:

50 - 35 / 50

= 15/50

= 3/10

= 30% (decrease as value is lower than original)

3 0

3 years ago

Read 2 more answers

Answer for a,b,and c PLEASE!!!

Mekhanik [1.2K]

A: Yes
B: .5, 1, 1.5
C: d=t/ 6 2/3 - or somthing like that

8 0

3 years ago

Read 2 more answers