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melisa1 [442]
3 years ago
15

Solve the equation by compleeting the square x^2 + 8 = 4x

Mathematics
1 answer:
bulgar [2K]3 years ago
3 0
The solution set is -8,0. Hope this helps!
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Jax has a weekly math test. His scores on the last 5 tests are 78,92,86,94,95. What score does he need to have an average of 90
lara [203]

Answer:

x = 95

Step-by-step explanation:

Given that,

Jax scores on the last 5 tests are 78,92,86,94,95.

We need to find the score he need to have an average of 90.

The formula for average of few number is given by :

Average = sum of observations/total no of observation

Let he score x in test 6. So,

90=\dfrac{78+92+86+94+95+x}{6}\\\\90=\dfrac{445+x}{6}\\\\540=445+x\\\\x=95

So, he must score 95 in the next test so that its average is 90.

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3 years ago
Help please urgent!!!!!!!<br><br>​
Inessa05 [86]

Step-by-step explanation:

i hope it's helpful......

3 0
3 years ago
I... I did it... Thanks-
umka21 [38]

Answer:

YAYYYYYY!!!!!!

Step-by-step explanation:

Congrats?? Lol

8 0
4 years ago
Read 2 more answers
8 - 2x &lt; 18 Which number line best represents the solution set for the inqeuality below
brilliants [131]

solution

here,8-2x < 18

- 2x < 18-8

- 2x <10

x <10÷ -2

x< -5

4 0
3 years ago
Oscar has received a $4,000 gift and is looking for a bank to start a savings account. Which option would be the best for him at
Brut [27]

Here is the complete question

A nominal interest rate of 5%

A real interest rate of 5%

A real interest rate of 3%

A nominal interest rate of 3%

Answer:

A real interest rate of 5%

Step-by-step explanation:

A real interest rate of 5% is the best option for oscar. The nominal rate of interest is a type of interest rate that shows the increase in in percentage of money without the depreciation discount that is usually caused by inflation or the payment of tax.

The real rate of interest shows the real increase in the money that has been paid for an investment. This is after inflation has been discounted and all forms of taxes have been paid.

So oscar should invest his $4000 on a savings account whose real interest rate is 5% per year

6 0
4 years ago
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