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konstantin123 [22]
2 years ago
11

Can someone help please​

Mathematics
1 answer:
Andreyy892 years ago
8 0

Answer:

option a

Step-by-step explanation:

in figure 1: 4n+8 = 4×1=4+8=12

figure 2:4n+8 =4×2=8+8=16 and so on

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How many solutions does -3(2x + 6) = -6x - 18 have
viktelen [127]

Answer: 0=0 The input is an identity or it is true for all values

-3(2x+6)=-6x-18

(-3*2x)+(-3*6)=-6x-18

-6x+-18=-6x-18

0=0

5 0
2 years ago
How can we isolate the variable c
Vlada [557]

Well depending on the equation you look at both sides and eliminate everything from both using addition, subtraction, multiplication, and division.

Ex:

3c-4=7                                                                                                                                                    first add the 4 because you use the opposite type of operation so you add it to 7 which gives you:

3c=11                                                                                                                                          next you have to divide to get it alone

3c/3=11/3

which gives you

c=   3.66666666667

8 0
3 years ago
What is the equation, in standard form, of a parabola that models the values in the table? x~ -1 0 2
Inessa05 [86]
<h2>Steps</h2>
  • Standard Form Equation: f(x) = ax² + bx + c

So firstly, since (0,5) is one of our values we can plug it into the standard form equation to solve for the c variable (since 0 will cancel out the a and b variable):

5=a*0^2+b*0+c\\5=c

Now we know that the value of c is 5. Next, plug in (-1,12) into the standard form equation and simplify (remember to also plug in 5 for the c variable):

12=a*(-1)^2+b*(-1)+5\\12=a-b+5\\7=a-b

Next, plug (2,15) into the standard form equation and simplify:

15=a*2^2+b*2+5\\15=4a+2b+5\\10=4a+2b\\5=2a+b

Now, with our last two simplified equations we will create a system of equations:

7=a-b\\5=2a+b

Now, I will be using the elimination method with this system. With the system, add up the equations together and you will get:

12=3a

From here, we can solve for the a variable. With it, just divide both sides by 3:

4=a

Now that we know the value of a, plug it into either equation to solve for the b variable:

7=4-b\\3=-b\\-3=b\\\\5=2(4)+b\\5=8+b\\-3=b

<h2>Answer</h2>

Putting all of our obtained values together, your final answer is:

f(x)=4x^2-3x+5

8 0
2 years ago
A non-Newtonian liquid demonstrates properties of both a solid and a liquid. A recipe for a non-Newtonian liquid calls for 1 cup
Nadya [2.5K]
In total 15 cups of water
7 0
2 years ago
What is 42% of 75?<br> A. <br> 315<br> B. <br> 105<br> C. <br> 31.5<br> D. <br> 10.5
iragen [17]

Answer:

31.5

Step-by-step explanation:

42% of 75 is 31.5. The working is as follows :

<em>42</em><em> </em><em>÷</em><em> </em><em>100</em><em> </em><em>×</em><em> </em><em>75</em><em> </em><em>=</em><em> </em><em>31</em><em>.</em><em>5</em>

<em>You</em><em> </em><em>can</em><em> </em><em>also</em><em> </em><em>use</em><em> </em><em>the</em><em> </em><em>picture</em><em> </em><em>^</em><em>^</em>

7 0
3 years ago
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