How to expand 6x(x-2y)

Answer:

OK so... I know the answer to x(4)+4x(3)+5x(2)-4x-4 =     -4

The part i don't understand is the f(x)=k=1 part.

Step-by-step explanation:

So overall the only answer I know is -4 Sry i couldn't help more.

Brainliest?

Answer:

(2/5)*b+1 = -11 // + 11

(2/5)*b+1+11 = 0

2/5*b+12 = 0 // - 12

2/5*b = -12 // : 2/5

b = -12/2/5

b = -30

b = -30

Step-by-step explanation:

hope this helped :)

Step-by-step explanation: First: Multiply 2/5 by 2. 5x2=10. 10 then turns into o a whole number +1=11.

10+1=11

Answer:

50

Step-by-step explanation:

because 50 pints

Answer:

50

Step-by-step explanation:

Step-by-step explanation:

the value of 1³ is 1* 1*1 = 1

Hope it will help :)

8k - 6 = 10k + 6

K= -6

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    8*k-6-(10*k+6)=0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  -2k - 12  =   -2 • (k + 6)

Equation at the end of step

1

:

STEP

2

:

Equations which are never true:

2.1      Solve :    -2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2      Solve  :    k+6 = 0

Subtract  6  from both sides of the equation :

   Which gives k = -6

Answer: K = -6

Step-by-step explanation:

When you add or subtract on one side, you have to do the same to the other side. You also have to get all the numbers with vairables on one side, and the ones without on the other side.

When you have a positive number, if you want to bring it to the other side, you have to subtract it. For example, if you want to bring 8k from the left side onto the right side, you have to subtract 8k from a number on the right side.

For this equation, lets bring all the numbers with vairables onto one side, and the ones without vairables on the other side. The ones with vairables will be on the left, and the numbers without will be on the right.

To bring 10k from the right side to the left, we have to subtract 10k from 8k. 8k - 10k = -2k.

Now we have to bring the -6 from the left side onto the right side. Since -6 is a negative number, we have to make it into a positive number to swap it to the other side. So it because 6. We add 6 to -6, and 6 to 6. The leaves the left side to be -2k, and the right side to be 12.

Now we have to divide. 12 ÷ -2 = -6. Therefore, k = -6. I hope this helps, and good luck on whatever you're doing :D

Answer: You should get 0.68 back

Step-by-step explanation: I just did a test and got 100%

Answer:

3 $0.16 = $0.48

or

4 $0.25 = $1.00 hope this helps

Step-by-step explanation:

Answer: f(3)

Step-by-step explanation:

First find the formula for the rate of change by taking the derivative of 2^x. Let f(x) equal some hypothetical y-value, then take the natural log of both sides.

[tex]y=2^x\\\ln(y)=x \ln(2)[/tex]

Implicitly differentiate the left side and take the derivative of the right side

[tex]\frac{y'}{y} =\ln(2)[/tex]

Multiply both sides by 'y' which was defined as 2^x

[tex]y'=\ln(2)*2^x[/tex]

Plug in x = 2 and x = 3 to see which slope is larger

[tex]y'=\ln(2)*2^2=4\ln(2)\\y'=\ln(2)*2^3=8\ln(2)[/tex]

Answer:

9040

10215.20

Step-by-step explanation:

compound interest that compounds yearly works as follows

PV(1+i)^n

just plug in the numbers

8000(1.13)^1= 9040

8000(1.13)^2=10215.20

Answer:

31 as it has only 2 factors which is 1 and 31

Answer:

B

Step-by-step explanation:

Answer: 36

Step-by-step explanation:

I'm not sure if this is 100% right this question was kinda messing with my brain , but if it's like asking how much she had in the 4 games all you had to do was add 9+9+9+9 or to make it easier you can just multiply 9 times 4 but I hope this is right.  

Answer:

it's A

Step-by-step explanation:

look at the bolded line, it's after 4.4 which would mean z> 4.4

Answer:

A

Step-by-step explanation:

so we have a less than sign, which immediately tells us this going to be going left as 4.4 is greater. and obviously since the number is 4.4, the graph will have targeted that number. Hope this helps!

Answer:

Bbc

Step-by-step explanation:

Answer:

A square is always a rectangle

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

abshxhdbxbjsbxbsbxnd

Answer:

60 cents for 1 pound

Step-by-step explanation:

2 pounds = $1.20

1 pound =  60 cents

Answer:

many solutions

Step-by-step explanation:

3×2k=????

3×5=??

6×k=??

6×4=??

then put all those together in a 2 step equation and then add 9 to the answer

The equation 3(2k-5)=6(k-4)+9 has infinitely many solutions.

Two or more expressions with an Equal sign is called as Equation.

3(2k-5)=6(k-4)+9

In the given equation k is the variable

Now apply distributive property to the RHS and LHS wherever it is required

6k-15=6k-24+9

6k-15=6k-15

Shift all terms to one side

6k-15-6k+15=0

0=0

Hence the equation 3(2k-5)=6(k-4)+9 has infinitely many solutions.

To learn more on Equation:

https://brainly.com/question/10413253

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Answer:

neat

Step-by-step explanation:

Answer: M is the coefficient

Step-by-step explanation:

Answer:

[tex]21.79 + c \leq 25[/tex]

Joshua can spend up to 3.21 on a card.

Step-by-step explanation:

[tex]21.79 + c \leq 25[/tex] is the correct equation because Joshua is spending 21.79 on flowers, a certain amount on the card, and the maximum he can spend is 25. That is why you use the less than or equal to sign.

To solve, first subtract 21.79 from both sides to get: [tex]c \leq 3.21[/tex]. This means that Joshua can spend up to 3.21 on a card.

Hope it helps!

Answer:

90

Step-by-step explanation:

60%-> 54

100%-> 90

There are 90 students vote in the election.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100

Given that

In a student council election, Kyle receives 54 votes for president.

Now,

Let total student votes in election = x

Hence we can formulate

60% of x = 54  

60/100 × x = 54

60x = 5400

x = 90

Therefore,  There are 90 student votes in the election.

Learn more about the percent visit:

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Hey! Here is my answer for part A! I dont know part B, but i have Part A!

------------------------------------------------------------------------------------------------------∪ω∪

74% (Rounded)

I made a total of all the students, i added all of them and got 230 students in total. Then I took students who liked playing PC and Phone/Tablet, and added them which got me 170 (90 + 80). I used a calculator to find out what is the percentage for 170/230. Therefore, I rounded my conclusion to 74%.

Answer:

Step-by-step explanation:

4,800 mcg × 0.5^t = 300 mcg

0.5^t = 1/16 = (1/2)⁴

t = 4

Answer:

[tex]4,800\left(\frac{1}{2}\right)^{t} \, = \, 300; \ 3 \ \text{hours}[/tex]

Step-by-step explanation:

Every hour, the research assistant is removing half the mass from the original 4,800 micrograms of the bacteria culture. So, the mass remaining after t hours can be represented by an exponential expression, a(b)t, where a is the initial mass of the bacteria culture and b is the base of the exponent that represents the decay factor. Since half of the mass of bacteria is being removed every hour, half of the mass remains. So, b = [tex]\frac{1}{2}[/tex]. The exponential expression for this situation is [tex]4,800\left(\frac{1}{2}\right)^{t}[/tex].

The research assistant will stop removing half the mass from the original bacteria culture after the original bacteria culture has a mass of 300 micrograms. Hence, set the expression for the mass remaining after t hours equal to 300.

[tex]4,800\left(\frac{1}{2}\right)^{t} \, = \, 300[/tex]

In order to solve this equation for t, the base needs to be isolated. Divide both sides of the inequality by 4,800.

[tex]\begin{array}{rclC40C40} 4,800\left(\frac{1}{2}\right)^{t} &=& 300\\ \left(\frac{1}{2}\right)^{t} &=& \frac{1}{16} \end{array}[/tex]

Next, rewrite the base of [tex]\frac{1}{16}[/tex] as a power of [tex]\frac{1}{2}[/tex]. Then, set the exponents equal to each other to solve for t.

[tex]\begin{array}{rclC40C40C30} \left(\frac{1}{2}\right)^{t} &=& \frac{1}{16} \\ \left(\frac{1}{2}\right)^{t} &=& \left(\frac{1}{2}\right)^{4} \\ t &=& 4 \end{array}[/tex]

So, after 4 hours the research assistant will stop removing half the mass of the bacteria culture.

Answer:

58

Step-by-step explanation:

PEMDAS

Answer:When paying for a restaurant order, a customer's total for food was $30.00. What is a 18% tip for that total? I WILL GIVE BRAINLEIST PLEASE

Step-by-step explanation:

The answer is 5.40 and also like they said you can round if you need too

Answer:

5 is co efficient

8x is term

9 is constant

Step-by-step explanation:

Answer:

Part A: 5-40

6-48

8-64

7-56

Part b:

1-9

5-45

6-54

8-72

Part c:

Theme park

5-45

Mowing lawns

5-40

$5

Step-by-step explanation:

Part A: 5x8=40

6x8=48

8x8=64

56/7=8

Part C: Every 5 hours working at the theme park she earns 45 dollars, when mowing lawns she earns 40 dollars 45-40 equal $5 extra dollars at the theme park.

5 (a - 1) - 15 = 3 (a + 2) + 4

[tex] \sf \dashrightarrow \: 5 (a - 1) - 15 = 3 (a + 2) + 4 [/tex]

[tex]\sf \dashrightarrow \: 5 \times a - 5 \times 1 - 15 = 3 \times a + 3 \times 2 + 4 [/tex]

[tex]\sf \dashrightarrow \: 5 a - 5 - 15 = 3 a + 6 + 4 [/tex]

[tex]\sf\dashrightarrow \: 5 a - 20 = 3 a + 10 [/tex]

[tex]\sf\dashrightarrow \: 5 a - 20 - 3a - 10 = 0 [/tex]

[tex]\sf\dashrightarrow \: 2 a - 30 = 0 [/tex]

[tex]\sf\dashrightarrow \: 2 a = 30[/tex]

[tex]\sf\dashrightarrow \: a = \cancel\dfrac{30}{2} [/tex]

[tex]\sf\dashrightarrow \: a = 15[/tex]

[tex] \Large \underline{\boxed{\tt{a = 15 }}}[/tex]