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Doss [256]
2 years ago
15

PLEASE HELP! SO CONFUSED! 25 POINTS!!

Mathematics
1 answer:
MrRa [10]2 years ago
7 0

Answer:

D

Step-by-step explanation:

(f • g)(x)

= f(x) × g(x)

= (x + 4)(3x² - 7)

each term in the second factor is multiplied by each term in the first factor , that is

x(3x² - 7) + 4(3x² - 7) ← distribute both parenthesis

= 3x³ - 7x + 12x² - 28

= 3x³ + 12x² - 7x - 28 ← in standard form

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Given the angles in the diagram, what is the angle measurement of the missing angle?
Eva8 [605]

Answer:

150*

Step-by-step explanation:

Using the formula (n -2) x 180* we find that there is 4 sides (n) and in put it and simplify to make (2)x180*. From there we calculate there is 360* in this polygon, and subtract the degrees already provided.  360-210=150

5 0
3 years ago
Read 2 more answers
Brainliest to best PLEASE!!
jeka57 [31]

Step-by-step explanation:

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3 years ago
What is the coefficient in the expression 15y + 5
dalvyx [7]

Answer:

15

Step-by-step explanation:

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8 0
2 years ago
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12 ÷ 75 = 0.16.

So she runs 0.16 miles per minute.

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5 0
3 years ago
I really need the answers for these I don't understand this
Yuri [45]
I tryed my best to figure out what all of the numbers were. if i got any wrong then please tell me and i will put the right answer in the comments.

1) 3/5= 5/x   (cross multiply)
     3x=5(5)
     3x=25
       x= 25/3 -or- 8.33

2) 2/4=x/12<span>   (cross multiply</span><span>)
</span> 2(12)=4x
     24=4x
       6=x
3) 10/x=5/9<span>   (cross multiply</span><span>)
   10(9)=5x
       90=5x
       18=x
4) 5/5=x/18</span><span>   (cross multiply</span><span>)
 5(18)=18x
     90=18x
       5=x</span>
8 0
3 years ago
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