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2 years ago

23. Which is a solution to the inequality below?

Mathematics

1 answer:

LenaWriter [7]2 years ago

8 0

Answer:

Step-by-step explanation:

$- 5n - 10 > 20$

add 10 to both side

so...

$- 5n > 30$

divide by -5 so, the sign flips because multiplying or dividing with a negative number changes the sign.

30/5=6

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Choose the simplified form of the fifth term of 6C4(2x)2(-y2)4.

Katarina [22]

You didn't give us the choices. It doesn't matter. I think you're trying to write

$\displaystyle {6 \choose 4} (2x)^2 (-y^2)^4$

$= \dfrac{6!}{4! 2!} ( 4x^2 y^8)$

$= \dfrac{6(5)}{2} ( 4x^2 y^8)$

$=60x^2 y^8$

Answer: 60 x² y⁸

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3 years ago

The sum of three times a number and −4 is less than 17?

Pavlova-9 [17]

Answer:

3(n + 4) ≤ 10 is the equation and the solution is n ≤ -2/3 Decimal Form: -0.666667

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Step-by-step explanation:

7 0

2 years ago

Complete the square for each expression. write the resulting expression as a binomial squared. x2-4x ___

Elan Coil [88]

-4/2=-2
(-2)^2=4
the blank is +4

x^2-4x+4
factored
(x-2)^2

7 0

2 years ago

PLEASE ANSWERRRRRRRRRR

mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

$\left \{ {{3x-5y=19} \atop {x+y=1}} \right.$

You can use the Elimination Method to solve it. The steps are:

1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

$\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2$

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

5. The final step is to solve for "x" in order to find its value.

Then:

$x+(-2)=1\\\\x=1+2\\\\x=3$

Therefore, the solution is:

$(3,-2)$

8 0

3 years ago

What’s the answer ?

Misha Larkins [42]

Answer:

3 one ofx+2 And 4th one x4

6 0

2 years ago