Solve each equation by factoring out the greatest common factor: 3n²+3n=0

Answers

Answer 1

Answer: 3n (n+1) = 0

3n = 0 or n+1 = 0
therefore, n =0, or n= -1

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Erykah has 6 less than 3 times the number of stamps in her collection that Chris has in his. Let r equal the number of stamps Chris has. Which expression represents the number of stamps Erykah has? (Let r = the number of stamps Chris has)A. 6 - 3r
B. 3r + 6
C. 3r - 6
D. 6 + 3r

Answers

C. 3r-6 is the answer

Answer:

Step-by-step explanation:

let r be the number of stamps Chris has then

3times this amount is 3r and less 6 is subtract 6 from 3r, hence

Erykah has 3r - 6 stamps → C

What is the inverse of the logarithmic function f(x)= log2x.

Answers

Answer:

the inverse is :10^x/2

Step-by-step explanation:

f(x)= log2x.

f^-1(x)=10^x/2

-4x <8 solve the inequality

Answers

Answer:

x>−2

Step-by-step explanation:

−4x<8

Step 1: Divide both sides by -4.

−4x

−4

x>−2

Simplify.open parentheses fraction numerator h over denominator 5 end fraction close parentheses squared

Question 13 options:

fraction numerator h squared over denominator 25 end fraction

fraction numerator h squared over denominator 5 end fraction

fraction numerator h over denominator 25 end fraction

25 h squared

Answers

(h/5)^2 = (h/5)*(h/5) = (h*h)/(5*5) = (h^2)/25 or was you've put it
"fraction numerator h squared over denominator 25 end fraction"

Which graph represents the solution to the system of inequalities?x + y ≤ 4

y – x ≥ 1

Answers

Given inequalities are

$x+y\le4$ and

$y-x\ge1$

Now we will graph both inequalities to get the common region which represents solution.

Work for $x+y\le4$

first we graph the line x+y=4 then shade the graph for inequality symbol $\le$

we can plug any random number for x and find y-value to get points

lets plug x=0 then we get:

x+y=4

0+y=4

y=4

so the point is (0,4)

Similarly we can find more point like (4,0).

Now graph both points and join both points by straight line.

Now we find direction of shading.

pick any test point which is not on that line x+y=4 say (0,0)

and plug it into orinal inequality $x+y\le4$

$0+0\le4$

$0\le4$

which is true.

True means shade in direction of test point. Otherwise we shade in opposite direction.

We will repeat same process for other inequality to graph that.

Hence final graph for the answer will be as shown in attached image.

Triangular region ABC is final answer.

Jacob has a piece of toast that has butter on one side, and he dropped it twice. Both times it landed with the butter side up. If he drops it two more times, what is the probability that it will have landed butter side up a total of three times? one over four one over two one over three two over three

Answers

P(total of 3) = 2C1 * (0.5) * (0.5) = 2 * 0.25 = 0.5 = 1/2

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True or False: A method of creating a geometric figure that is mathematically precise by using a compass andstraightedge is called drawing or copying.

Solve y = ax^2 + c for x.

On a coordinate plane, 3 lines are shown. Line a has points (negative 3, 3) and (3, negative 3). Line b has points (negative 3, negative 2) and (2, 3). Line c is parallel to line b. If line b is perpendicular to line a, and line c is perpendicular to line a, what is the slope of line c? mc =