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Sophie [7]
2 years ago
8

Simplify 5x(3x^2+2x-3)

Mathematics
2 answers:
Tcecarenko [31]2 years ago
4 0

Answer:

15x^3 +10x^2 - 15x

Step-by-step explanation:

Hello!

Use the distributive property and multiply like terms.

<h3>Simplify</h3>
  • 5x(3x^2 + 3x - 3)
  • 5x(3x^2) + 5x(2x) + 5x(-3)
  • 15x^3 +10x^2 - 15x

The simplified form is 15x^3 +10x^2 - 15x.

ElenaW [278]2 years ago
3 0
Yea I think that’s the correct answe aw well
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Uses
g100num [7]

Answer:

27 smoothies

Step-by-step explanation:

if you have 27 cups and one requires one cup, it would be 27 smoothies Katherine can make :)

5 0
3 years ago
Subtract the following fractions.
yanalaym [24]

Answer:

22. 3/8

23. 3/5

24. 0

Step-by-step explanation:

turn the 1 into a fraction for each of the problems.

for 22. it would be 8/8 because also trying to make the denominators the same.

8/8 - 5/8 = 3/8

try 23 and 24 now!

5 0
3 years ago
Consider the matrix:
Bas_tet [7]

Answer:

1. The determinant is 8.

2. The determinant does not depend on the variables in the matrix.

3. When there are zeroes below the main diagonal, the determinant is the product of the diagonal.

Step-by-step explanation:

"Analyzing Determinants" on Edge2020

(If this is what i think it is)

7 0
3 years ago
Read 2 more answers
I need answer on this graphing va substitution.Problem 7 I tried to solve it but not sure that’s correct
Bond [772]

Given the system of equations:

\begin{gathered} 2x+9y=27 \\ x-3y=-24 \end{gathered}

To solve it by substitution, follow the steps below.

Step 1: Solve one linear equation for x in terms of y.

Let's choose the second equation. To solve it for x, add 3y to each side of the equations.

\begin{gathered} x-3y=-24 \\ x-3y+3y=-24+3y \\ x=-24+3y \end{gathered}

Step 2: Substitute the expression found for x in the first equation.

\begin{gathered} 2x+9y=27 \\ 2\cdot(-24+3y)+9y=27 \\ -48+6y+9y=27 \\ -48+15y=27 \end{gathered}

Step 3: Isolate y in the equation found in step 2.

To do it, first, add 48 to both sides.

\begin{gathered} -48+15y=27 \\ -48+15y+48=27+48 \\ 15y=75 \end{gathered}

Then, divide both sides by 15.

\begin{gathered} \frac{15y}{15}=\frac{75}{15} \\ y=5 \end{gathered}

Step 4: Substitute y by 5 in the relation found in step 1 to find x.

\begin{gathered} x=-24+3y \\ x=-24+3\cdot5 \\ x=-24+15 \\ x=-9 \end{gathered}

Answer:

x = -9

y = 5

or (-9, 5)

Also, you can graph the lines by choosing two points from each equation, according to the picture below.

7 0
1 year ago
The Kentucky derby distance is 19 furlongs. How far is the Kentucky derby?how many rods
Bumek [7]

Answer:

760 rods.

Step-by-step explanation:

If my memory serves me right there are  4 rods in a chain and 10 chains in a furlong.

So 19 furlongs = 19 * 10 * 4 rods

= 760 rods.

4 0
4 years ago
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