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ycow [4]
3 years ago
15

Determine whether the given value is a solution of the equation.

Mathematics
1 answer:
nlexa [21]3 years ago
5 0

Answer:

16 is not the solution to the equation

Step-by-step explanation:

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Correct answer will be marked brainliest<br><br>find the value of x<br>4x + 2 = 8​
amid [387]

Answer:  x = 6/4

Step-by-step explanation:  

4x + 2 = 8

4x = 6

x = 6/4 or 1 1/2

Hope this helped :)

3 0
3 years ago
Read 2 more answers
$700 is invested at 4% per annum. How long will it take for the amount to reach $784?​
Blababa [14]

Answer:

3yrs

Step-by-step explanation:

Given parameters:

Capital = $700

Percentage interest  = 4% per annum

Unknown:

Time it will take for amount to be  = $784

Solution:

To find the simple interest on an amount;

        I = \frac{PRT}{100}

P is the principal

R is the rate

T is the time

I is the interest

    Insert the parameters:

        I  = \frac{700x 4 x T}{100}

        I = 28T

So;

   At the end of the duration:

       Principal + Interest  = Amount

          700+28T = 784

                   28T = 784 - 700

                   28T = 84

                       T = 3yrs

5 0
2 years ago
Milk is a good source of many vitamins that can help us stay healthy. FDA recommends that the average vitamin A concentration fo
Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

df=n-1=28-1=27

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450

6 0
3 years ago
4x2 + 4x - 2y2 +3y, when x is equal to -2 and y is equal to 3?
ladessa [460]

Answer

-1

Step-by-step explanation:

Just plug in the numbers.

5 0
3 years ago
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2)1694 what is the answer​
8_murik_8 [283]

Answer:

0.00118063754

is right...

Step-by-step explanation:

5 0
3 years ago
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