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Afina-wow [57]
3 years ago
11

Evaluate the expression when x=10, y=−2, and z=−5. −x2+6z/y=

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
8 0

- (10)2 + 6(-5)/(-2)

- 20 + -30/-2

- 20 + 16

4 ( I think)

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When the function below is graphed, how many x-intercepts does it have?y = 4x2 - 12x + 9?
Sladkaya [172]
Only x-intercept because if you want to know about x-intercepts so y will be zero (y=0)
then 0 =4x^2 -12x + 9
0=(2x-3)(2x-3)
0=2x-3
so x=3/2 that is x-intercept
7 0
3 years ago
Read 2 more answers
Use natural logarithms to solve the equation. Round to the nearest thousandth. 6e4x - 2 = 3
frosja888 [35]
6 · e^(4x - 2) = 3
     e^(4x - 2) = .5
 ln e^(4x - 2) = ln (.5)
          4x - 2 = ln (.5)
               4x  = ln (.5) + 2
                 x  = (ln (.5) + 2)/4
                 x = 0.3267
                 x ≈ 0.327

Answer: B

6 0
3 years ago
Plz answer seriously and you will get 15 points and possibly a brainliest.
irina1246 [14]

Just saying, this angle is a 45 degree angle.  

and the X on both is   '-1'

I think?

hope this helps. im not good at math..- :)

8 0
3 years ago
Please I need help
solong [7]

9514 1404 393

Answer:

  (c)  27x^11 +51x^7 +9x^6 -60x^5 +17x^2 -20

Step-by-step explanation:

As with many multiple-choice questions, you only need to look at something that will discriminate the correct answer from the wrong one.

The highest-degree product term is the product of the highest-degree terms in the factors:

  (3x^5)(9x^6) = 27x^11

This matches choice C only.

_____

In case you're interested in actually performing the rest of the multiplication, the distributive property applies.

  (1 +3x^5)(17x^2 +9x^6 -20)

  = 1(17x^2 +9x^6 -20) +3x^5(17x^2 +9x^6 -20)

  = 17x^2 +9x^6 -20 +51x^7 +27x^11 -60x^5

Writing these terms in order of decreasing exponents gives ...

  = 27x^11 +51x^7 +9x^6 -60x^5 +17x^2 -20

7 0
3 years ago
Use prime factorization to find the least common multiple of 54 and 36​
irinina [24]
Answer: 108


Explanation:

GCF(36,54) = 18
LCM(36,54) = ( 36 × 54) / 18
LCM(36,54) = 1944 / 18
LCM(36,54) = 108
6 0
2 years ago
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