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Alexxandr [17]
3 years ago
8

Whats (2x+4)(-x-4)? plz help me on this question

Mathematics
1 answer:
pentagon [3]3 years ago
3 0

Answer:

-2x^{2}-12x-16

Step-by-step explanation:

(2x+4)(-x-4)

-2x^{2}-12x-16

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PLS DO BOTH PROBELMS
bezimeni [28]

<em>1.) </em><em>510 miles</em>

<em>Take the values you have been given which is 153 miles and 3 gallons of gas </em>

<em>Now divide 153 by 3 to find put the Miles per gallon (MPG)</em>

<em>153/3=51</em>

<em>now take 51 and multiply it by 10</em>

<em>51x10=</em><em>510</em>

<em>2.) </em><em>$16 per yard of plywood</em>

<em>Let's take the values we have been given </em>

<em>3/4 of a yard of plywood and $12 for it</em>

<em>Now let's divide it </em>

12/ 3/4=$16

7 0
3 years ago
The ratio of boys to girls at a movie is 3:4 . If there are 16 girls ​, how many boys are at the​ movie?
Annette [7]

Answer:

12 boys

Step-by-step explanation:

  1. Set up a proportion: \frac{3}{4} = \frac{x}{16}  
  2. Cross multiply, then divide: 3 × 16 = 48, 48 ÷ 4 = 12

I hope this helps!

8 0
3 years ago
Read 2 more answers
Which linear function has the same y-intercept as the one that is represented by the graph?
konstantin123 [22]
Click the link for the answer




8 0
3 years ago
What is 9+3/4x=7/8x-10 <br><br> Write in least common multiple of denominator.
Dafna11 [192]

LCM(4, 8) = 8

\dfrac{3}{4}=\dfrac{3\cdot2}{4\cdot2}=\dfrac{6}{8}

9+\dfrac{3}{4}x=\dfrac{7}{8}x-10\ \ \ \ |-9\\\\\dfrac{6}{8}x=\dfrac{7}{8}x-19\ \ \ \ |-\dfrac{7}{8}x\\\\-\dfrac{1}{8}x=-19\ \ \ \ |\cdot(-8)\\\\x=152

8 0
4 years ago
20 POINTS<br><br> Which of the following tables does NOT represent a function?
pashok25 [27]

Answer:

C.

Step-by-step explanation:

In a function, one x-value must have just one y-value assigned to it. So in short, C is the only table that does not represent a function because it has two values of Y (-3, and -1) for one value of x (1).

7 0
2 years ago
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