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3 years ago

I need help i’m not good at math

Mathematics

1 answer:

trasher [3.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

to write in scientific notation, the number has to be less than 10 but more than one

so for the given number let’s say there’s a decimal at the end

49,010,000.

to move the decimal to the right of 4, we’re moving 7 places

that’s why once the number is

4.901

we write a x10^7 after because you have to move the decimal 7 places to the right to get it back to the original number

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W + 19 = 49 and W = 30 O True False

Illusion [34]

True because 30+19=49

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3 years ago

Read 2 more answers

Take pi to be 3.142 and write down all tge digitd given by your calculator. 21

cricket20 [7]

Answer:

3.3.14259265359 re-uccering

Step-by-step explanation:

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3 years ago

X-y<3 How I can solve this inequality?

Reil [10]

X-y<3
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3 years ago

Kenny's scores the first 5 times he played a video game are listed below. 38, 51, 64, 77, 90 Kenny's scores follow a pattern. If

gayaneshka [121]

Kenny's score on his 72nd game played is 961

Solution:

Given that the first 5 score of Kenny are listed below:

38, 51, 64, 77, 90

Kenny's scores follow a pattern

To find: Kenny's score on his 72nd game played

Let us first find the pattern followed

38, 51, 64, 77, 90

Find the difference between terms

51 - 38 = 13

64 - 51 = 13

77 - 64 = 13

90 - 77 = 13

So the difference between terms is constant

So the sequence is arithmetic sequence

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

The formula for nth term of arithmetic sequence is given as:

$a_n = a_1 + (n-1)d$

$a_n$ = the nᵗʰ term in the sequence

$a_1$ = the first term in the sequence

d = the common difference between terms

Here d = 13 and $a_1 = 38$

So we get,

$a_n = 38 + (n-1) \times 13$

To find the score of 72nd game, substitute n = 72

$a_{72} = 38 + (72-1) \times 13\\\\a_{72} = 38 + 71 \times 13\\\\a_{72} = 38 + 923\\\\a_{72} = 961$

Thus Kenny's score on his 72nd game played is 961

7 0

3 years ago

1) $400 interest is earned on a principal of $2,000 at a simple interest rate of 5%

Kitty [74]

Answer:

4 years

Step-by-step explanation:

I = $ 400

R = 5%

P =$ 2000

I = Prt

400 = 2000 * $\frac{5}{100}$ * t

400 = 20 * 5 * t

400 = 100 t

$\frac{400}{100}=t$

t = 4 years

3 0

3 years ago