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Mama L [17]
3 years ago
8

ALGEBRA Evaluate the expression if x = –8, y = 7, and z = –11.

Mathematics
1 answer:
____ [38]3 years ago
7 0

Answer:

If you simply want to know how to answer this type of question you just take what the exponents equal and plug them into the equation you are given

Step-by-step explanation:

y+x+z

7-8-11=-12

hope this helped :)

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Solve by completing the square <br><br> 3x^2-7x-1
docker41 [41]

Answer:

x=\frac{7+\sqrt{61}}{6},\:x=\frac{7-\sqrt{61}}{6}

Step-by-step explanation:

a=3,\:b=-7,\:c=-1:\quad x_{1,\:2}=\frac{-\left(-7\right)\pm \sqrt{\left(-7\right)^2-4\cdot \:3\left(-1\right)}}{2\cdot \:3}

x=\frac{7+\sqrt{61}}{6},\:x=\frac{7-\sqrt{61}}{6}

3 0
3 years ago
Helpp !! I Dont Understand This !
makvit [3.9K]
How to solve shaded regions on a trapezoid is simple.
First find the area of the whole trapezoid, or W but it already gives us that as 21.66 in squared.
Next, find the area of the non shaded region, or NS.
3.8*4.6=17.48 in
Lastly, subtract the NS from the W.
21.66 -17.48 = 
NS= 17.48 in squared.
W= 21.66 in squared.
S= 4.18 in squared.
 
The answer is B- 4.18 in Squared








4 0
4 years ago
Miguel drove for 8 hours at a constant rate he drove a total of 424 miles.
statuscvo [17]

Answer:

Miguel has a greater unit rate than Donna because 53 mph is greater than 48 mph

Step-by-step explanation:


3 0
3 years ago
For what real values of $c$ is $x^2 - 8x + c$ the square of a binomial?
nikklg [1K]

Value of c is 16 for which equation  f(x) = x^2-8x+c  is a square of binomial !

<u>Step-by-step explanation:</u>

Here we meed to find the value of c for which equation f(x) = x^2-8x+c or ,  f(x) = x^2-8x+c is a square of a binomial . Let's find out:

We know that

⇒ (x-a)^2 = x^2-2(a)(x)+a^2   ..........(1)

Let's simplify given equation in question

⇒ f(x) = x^2-8x+c

⇒ f(x) = x^2-2(4)x+c

Comparing this equation with (1) we get :

a=4 , c=a^2

⇒ c=a^2

⇒ c=4^2

⇒ c=16

Therefore , Value of c is 16 for which equation  f(x) = x^2-8x+c  is a square of binomial !

5 0
3 years ago
−3, −1, 0, 3<br><br> Which pair of numbers has a sum of 0
Artemon [7]
-3 and 3 are equal to 0
3 0
3 years ago
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