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pav-90 [236]
2 years ago
7

-2x^2+6x+7=2x-3 by quadratic formula

Mathematics
1 answer:
mash [69]2 years ago
8 0

Answer: There is no real solution because the discriminant is negative. Nevertheless, x is √6 + 1 or 1 - √6. However, these solutions are not real because the discriminant is negative.

Explanation: The square root of a negative number is not a real number.

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Which rate is equivalent to `72/9`? A. `8/1` B. `1/8` C. `8/2` D. `2/8`
Fed [463]

the answer is letter A. 8/1

4 0
3 years ago
What type of triangle is shown?
MAXImum [283]

Answer:

right triangle

Step-by-step explanation:

We know that the total angles of the triangle are 180 degrees:

(x) + (4x-10) + (2x+15) = 180

7x - 10 + 15 =180

7x + 5 = 180

7x = 180 - 5

7x = 175

x = 175÷ 5 = 25

Now we calculate each angle

x=25

4x-10= (4*25) -10=100-10=90

2x+15=(2*25)+15=50+15=65

Because we have a right angle, then the triangle is right triangle

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B5%7D%20%20-%203" id="TexFormula1" title=" \frac{1}{5} - 3" alt=" \frac{1}
denis-greek [22]
-14/5 , -2.8 and yeah
3 0
3 years ago
-8.3 + x = -12<br><br> I will give brainliest
Diano4ka-milaya [45]
The answer is X = -3.7
5 0
3 years ago
Read 2 more answers
Which represents the reference angle for 3pi/4?
inn [45]

Answer:

(c) Pi/4

Step-by-step explanation:

3pi/4 = (3 x 180) / 4 = 135 degrees

135 degrees is equivalent to (180 degrees - 135 degrees) 45 degrees

45 degrees = Pi/4

Therefore, the reference angle of 3pi/4 is Pi/4

Thus, the correct option is (c) Pi/4

8 0
3 years ago
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