Is this right? Trying to get all my work done please hurry!!

Mandarinka [93]

$8a+2b+7c=4\ \ \ \ |-7c\\\\8a+2b=4-7c\ \ \ \ |-4\\\\8a+2b-4=-7c\\\\\boxed{-7c=8a/-2b-4}$

5 0

3 years ago

1. Using the letters in the word FABRIC, find the number of permutations that can be formed using 2 letters at a time. Show your

Lisa [10]

1. Each letter is paired with each of the other letters to produce all the permutations of 2 letters. There are 6×5 = 30 of them.

FA FB FR FI FC .. A.F AB AR AI AC .. BF BA BR BI BC .. RF RA RB RI RC .. IF IA IB IR IC .. CF CA CB CR CI

2. The linear regression function of a graphing calculator can be used to find the line of best fit. Generally, this involves entering the given coordinates and invoking the appropriate regression calculation.

... calories ≈ 13.9×(fat grams) + 191.3

7 0

3 years ago

You borrow $30,000 to buy a new car. The simple interest

bagirrra123 [75]

Answer:

I think you have a typo in the interest rate. If you want to calculate the interest on $30000 at 2% interest per year after 5 years, the answer is $3,000. If you want to calculate the interest on $30000 at 5% interest per year after 5 years, the answer is $7500.

Step-by-step explanation:

I think you have a typo in the interest rate. If you want to calculate the interest on $30000 at 2% interest per year after 5 years, this is the correct answer:

The formula we'll use for this is the simple interest formula, or:

P= I × r × t

Where...

P equals the principal amount, which is $30000.00.

r equals interest rate, which in this case is 2% per year, or in decimal form, 2/100=0.02.

t equals time involved, which would be 5 years.

To find the simple interest, we multiply 30000 × 0.02 × 5 to get that the interest is: $3000.00

Now, if you want to calculate the interest on $30000 at 5% interest per year after 5 years, this is the correct answer:

The formula we'll use for this is the simple interest formula, or:

P= I × r × t

Where...

P equals the principal amount, which is $30000.00.

r equals interest rate, which in this case is 5% per year, or in decimal form, 5/100=0.05.

t equals time involved, which would be 5 years.

To find the simple interest, we multiply 30000 × 0.05 × 5 to get that the interest is $7500.00.

hope this helped! will you pls give a "thanks" and/or leave a brainllest since I had to do two different equations? :)

7 0

4 years ago

28= Square root 2(9.8)h. H?

taurus [48]

Answer:

Step-by-step explanation:

8 0

3 years ago

The size of a white tablet is 0.000005 m and that of a red tablet is 0.0000275 m.Find their ratios and Compare their sizes

raketka [301]

A ratio will just be trying to find whole number versions of these decimals and then compare them side by side (always divide the larger number by the smaller number).

Therefore:

$\frac{0.0000275}{0.000005}=5.5=\frac{5.5}{1}$

However, this isn't a proper ratio. <em>Generally</em>, ratios are whole numbers. Since it's 5.5, we can easily make this a whole number by multiplying it by 2. Keep in mind though, what we do to one number we do to the other! So:

$\frac{2}{2}(\frac{5.5}{1})=\frac{2*5.5}{2*1}=\frac{11}{2}$ , technically this is a better format since it's whole numbers, but it gives you the ratio (11:2) which is a bit tougher to interpret than (5.5:1)

Therefore, the ratio we'll use is 5.5:1 for simplicity's sake:

From this ratio, we can see that the red tablet is 5.5x the size of the white tablet.

Hope this helps! :)

7 0

2 years ago