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docker41 [41]
3 years ago
15

Subtract 4x^2 - 5x + 1 - (2x^2 + 9x - 6)​

Mathematics
2 answers:
HACTEHA [7]3 years ago
6 0

Answer:

4x^{2}-16x+7

Step-by-step explanation:

hope this helps

frez [133]3 years ago
6 0
First you should distribute the negative. then after that just combine like terms.
answer: 2x^2 - 14x + 7
look at image for more

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Triangle ABC is congruent to the Triangle DEF , EF=X^2 -7 , BC = 4X-2 ,Find the value of X? help guys
11111nata11111 [884]

Answer:

x=5

Step-by-step explanation:

Congruent triangles mean they have the same side lengths, so the equation here is x^2-7=4x-2. Then, solve the quadratic equation:

x^2-7=4x-2

x^2-4x-5=0

(x-5)(x+1)=0

x=5,-1

Since a side of a triangle can't be negative, the answer is 5.

6 0
3 years ago
Need help with this please and thanks
lesantik [10]

Answer:

It is A

Step-by-step explanation:

If you look at it ecch one is moving by 4. -

5+4= -1

-1+4=3

7+4=11

3 0
3 years ago
Read 2 more answers
2. Two angles have a common vertex but no common side. How can you tell whether the angles are vertical angles?
Maksim231197 [3]

Explanation:

The angles are <em>vertical angles</em> if the opposites of the rays forming one of the angles are the rays forming the other angle.

More formally, if V is the common vertex, and ...

  • R is a point on one of the rays forming Angle 1
  • S is a point on the ray that is the opposite of ray VR
  • T is a point on the other ray forming Angle 1
  • U is a point on the ray that is the opposite of ray VT

Then angle RVT and angle SVU are vertical angles.

___

Another way to say this is that points R, V, S are collinear, as are points T, V, U, and the two angles of interest are RVT and SVU.

If the above conditions cannot be met, then the angles are not vertical angles.

7 0
4 years ago
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to
kipiarov [429]

Answer:

Step-by-step explanation:

(score - mean)/stand dev = z score

(120 - 100) / 15 = 1.33 z score = .9082

5 0
3 years ago
Use pictures or word to explain how you can find the sum for 3+5+2
fomenos
3 plus 5 plus 2 is 10 because if you add 3 plus 5, it equals to 8 and 8+2 equals to 10.
6 0
3 years ago
Read 2 more answers
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