Yes, It forms two right angle triangles (which are the same) because AD is the same length to DB and AC is the same length to BC. right angle triangles meet a line at 90° and thus CD must be perpendicular to AB.
Hope this helps.
She had a 20% increase.
40*0.20=8
40+8=48
You’re welcome and I hope you stay safe.
Answer:
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Step-by-step explanation:
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You need to use the quadratic formula for this question.
In your equation, a is 1, b is 6, and c is 4. (I couldn't find a plus minus sign, so that's what the +- means, sorry if there's confusion.)
Sub those into the quadratic formula, and
For the first answer, we should get
x1=-0.7639, when you add the √6^2-4(1)(4)
For the second answer, we get
x2=-5.2361 when we subtract the √6^2-4(1)(4)
Therefore, the x values that make this equation equal to 0 should be approximately -0.7639 and -5.2361.
The more specific answers are
x1= -3+√5 and x2=-3-√5.