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Aleksandr [31]
3 years ago
13

4x2 + 8x – 9 = 0 complet the square

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
The answer is 1/8. That is the answer for this question.
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15 of 15 Find the size of the final unknown interior angle in a polygon whose other interior angles are: 162°, 115°, 125°, 148°
alexandr1967 [171]

Answer: 147 Degrees

Step-by-step explanation

The size of the final unknown interior angle in a polygon is 147 degrees.

Given that,

The other interior angles are 162°, 115°, 120°, 148° and 85°.

We assume that there is an equation (2n - 4) 90.

Here n be 7.

Based on the above information, the calculation is as follows:

= (2n - 4) 90

= ((2) (7) - 4) 90

= 10 (90)

= 900

Now the size of the unknown interior angle is  

= 900-(162+125+148+105+98+115)

= 900 - 753

= 147°

Therefore we can conclude that the size of the final unknown interior angle in a polygon is 147 degrees.

6 0
2 years ago
The original price of a jacket was 72.50$ Maria used a coupon for 20% off to buy the jacket. How much did she pay before tax?
Afina-wow [57]

Answer: Maria payed $58.00 for her jacket BEFORE tax.

Step-by-step explanation:

To find the answer to this question, we must first multiply 72.50 by 0.20. After doing so, we get 14.5 (this is the sale money). Finally, we subtract $72.50-14.5 to get out answer, 58 dollars.

3 0
3 years ago
Estimate the quotient for 5,738 divided by 21
soldier1979 [14.2K]

Answer:

its 273 rounded but say 270

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If you could show the steps that would be great​
zvonat [6]

Answer:

24x + 8

Step-by-step explanation:

4 + 16 - 12(1 + 2x)

Solve

Show steps

__________________

We have a dilemma here, there is a variable and constant numbers in this equation. No fear, this is when like terms comes into play, where you can only combine two numbers that have the same ending, whether it be variables, exponents, e.t.c.

Distribute :

4 + 16 - 12(1 + 2x)

4 + 16 - (12(1) + 12(2x))

4 + 16 - 12 + 24x

Use PEMDAS (Add left to right) :

4 + 16 - 12 + 24x

20 - 12 + 24x

8 + 24x

24x + 8

4 0
2 years ago
Read 2 more answers
Please solve this ..................​
AlladinOne [14]

Answer:

Step-by-step explanation:

√20=√5*2*2

√20=2√5

4 0
3 years ago
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