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dsp73
3 years ago
11

Can someone help me out

Mathematics
1 answer:
madam [21]3 years ago
3 0

the first part isn't 90, it's 180.

the whole circle is 360, half of 360 is 180


an acute angle is any angle less than 90 degrees.

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Explanation:

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What is the value of b2 - 4ac for the following equation?<br><br> 2x2 + 3x = -1
andreyandreev [35.5K]
The value of b^2-4ac is known as the discriminant of a quadratic function, and can tell you how many roots exist of this function depending on what it is equal to.

Start by moving the -1 to the other side, as we need this function to equal zero.

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b^2-4ac
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9 - 8
1

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7 0
3 years ago
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I need help ASAP please. It's a contest
igor_vitrenko [27]

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Your friend attempted to factor an expression as shown. Find the error in your friends work. Then factor the expression correctl
loris [4]

Answer:

Third step is incorrect. The correct factored form is (x-1)(2x-5).

Step-by-step explanation:

The given expression is

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We need to find the factored form of this expression.

Step 1: Given

2x^2-7x+5

Step 2: Splitting the middle term method, the middle term can be written as (-5x-2x).

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Step 3: Taking out common factors from each parenthesis.

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Step 4: Taking out common factors.

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Therefore, the third step is incorrect. The correct factored form is (x-1)(2x-5).

3 0
3 years ago
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