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viktelen [127]
3 years ago
12

Whats the best way to get my grade up fast​

Mathematics
2 answers:
Vesnalui [34]3 years ago
7 0

Answer:

Pay attention in class, dont mess what the wrong people, if you need help ask, study, and try your hardest

Step-by-step explanation:

Katarina [22]3 years ago
6 0

Answer:

Look up the answers or use a step by step calculator

Step-by-step explanation:

You might be interested in
Beginning one month after birth of their son, Noah, the Nelsons deposited $100 each month in an annuity for his college fund. Th
gizmo_the_mogwai [7]

Answer:

$100 * (1 + 6.8%/12)^216 + $100*(1+6.8%/12)^215 + ... + $100*(1+6.8%/12)^1  

Now note that  

x + x^2 + x^3 + ... + x^N = x ( 1 + x + ... + x^(N-1) )  

= x ( (x^N -1)/(x-1) )  

Here, x = 1+6.8%1 = 1.00566666 and N = 216, so  

$100 * ( 1.00566666 ( 1.00566666^216 -1) / 0.00566666 )  

= $ 42398.33  

The total interest earned is $42,398 - $21,600 = $20,798

Step-by-step explanation:

The generic formula used in this compound interest calculator is V = P(1+r/n)^(nt)

V = the future value of the investment

P = the principal investment amount

r = the annual interest rate

n = the number of times that interest is compounded per year

t = the number of years the money is invested for

8 0
3 years ago
Factorize the following:<br>5(3a + b)² +6 (3a +b) - 8​
zvonat [6]

Answer:

Step-by-step explanation:

Here, following formula will be used

(a+b)²= a²+b²+2ab

question

5(3a + b)² +6 (3a +b) - 8​

=> we will take out 3 as common number to make the term (3a+b) to fit formula requirement

=> 5x3 (a+b/3)²+6(3a+b)-8

=> 15(a²+b²/9+2xaxb/3)+18a+6b-8

here, we have expanded the formula

=> 15a²+15b²/9+15x2ab/3+18a+6b-8

=> 15a²+5b²/3+10ab+18a+6b-8

5 0
3 years ago
Read 2 more answers
Debby was packing up some of her old stuff into a box a box can hold 9 pounds but she only filled it up 8/10 full how much weigh
Vikentia [17]
Multiply pounds box can hold by percent full.

= 9 * 8/10
= (9*8)/10
= 72/10
= 7.2 pounds full

ANSWER: 7.2 pounds was in the box

Hope this helps! :)
4 0
3 years ago
The area of a circle is 47.39cm2. find the length of the radius rounded to 2 dp.
Tpy6a [65]

The length of the radius rounded to 2 decimal points is 3.88cm.

In geometry, the area enclosed by a circle of radius r is pie  πr^2.

How to round decimals?

Rounding decimals consists of rounding a decimal number to a certain number of decimal places, to save time and help us express really long numbers in shorter terms. There are certain rules to follow when rounding a decimal number. Put simply, if the last digit is less than 5, round the previous digit down. However, if it’s 5 or more than you should round the previous digit up. So, if the number you are about to round is followed by 5, 6, 7, 8, 9 round the number up. And if it is followed by 0, 1, 2, 3, 4 round the number down.

The area of circle is 47.39cm^2.

Putting it in the formula we get

47.39cm^2 = πr^2

r^2 = 47.39 / π

r^2 = 15.0847

r = 3.88 cm

Hence the length of the radius rounded to 2 decimal points is 3.88cm.

Learn more about circles here :

brainly.com/question/22275589

#SPJ4

5 0
2 years ago
The science department orders a new telescope and pays $253.87 after tax. The tax rate is 6% . What was the original price of th
mash [69]
The price after tax is £253.87 so to find the original price you have to deduct 6% but first you need to find 6%.

Easiest way to find 6% is by finding 10% or 2% or 1% / whatever you find easiest. For me it would be 1%

If you find 1 % you would then multiple it by 6 to give you 6%

10% is £25.38 (move the decimals 1 unit)
1% is £2.54 (move decimals 2 units)
Always round up

£2.54 X 6 = £15.24

£253.87 - £15.24 = £238.63
7 0
3 years ago
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