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Roman55 [17]
4 years ago
14

Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation?

Mathematics
1 answer:
Alex73 [517]4 years ago
4 0
By completing the square. Using the formula (b/2)^2. The answer is 2(x+3)^2-21
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Solve using order of operations (9 + 33 – 6 ) ÷ 6 – 32
marusya05 [52]

Answer:

-26

Step-by-step explanation:

9+33-6

calculate the sum of the positive numbers

42-6

subtract the numbers

36 divided by 6-32

6-32

-26

5 0
3 years ago
Read 2 more answers
Divide 72 in the ratio 7:2.<br> show your work.
AVprozaik [17]
I think the answer is 3.5 cause when you divide it 7 go inside and 7 there's nothing you can multiply to get 7
5 0
4 years ago
Complete the statements about the series
AleksAgata [21]

Answer:

Ok, first in our series we can see two numbers in the Sigma, one bellow 0, and other above, 4.

This means that the value of k will go from 0 to 4, then all the numbers in the sum are:

(-1/2)^0 + (-1/2)^1 + (-1/2)^2 + (-1/2)^3 + (-1/2)^4

So we have 5 terms in our series.

b) to see the sign in each term, we must solve the powers, remember that:

(-1)^n is -1 if n is odd, and is equal to 1 if n is even, so we have:

(-1/2)^0 + (-1/2)^1 + (-1/2)^2 + (-1/2)^3 + (-1/2)^4

= 1 -1/2 + 1/4 - 1/8 + 1/16.

So the sign in each term of the series alternates.

4 0
3 years ago
Write the formula for an exponential function with initial value 300 and decay factor 0.73
postnew [5]

Answer: 300*0.73^x

Step-by-step explanation:

300 is the initial value and every time x goes up by 1, the value get multiplied by 0.73

when x=3

then the value would be 300*0.73*0.73*0.73 or 300*0.73^3

then for x amount of times the equation would be 300*(0.73 x times ) or 300*0.73^x

8 0
3 years ago
PlEase explain where the decimal and zero comes in for 4840/90?
Anika [276]

Answer:

Read my explanation

Step-by-step explanation:

Since they both end with a 0, you can just cancel it out. So you'd have 484/9.

The answer to that is 53.7777777777...

So the decimal would come before the 3 and after the 7.

I hope this helped and have a good rest of your day!

6 0
4 years ago
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