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Otrada [13]
3 years ago
5

2. - 4x + 9y = 14 12x – 10y = -8 ; multiplication

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0

Answer:

-4x + 9y = 14 answer is x = \frac{9}{4}y+ \frac{-7}{2}

12x - 10y = -8 answer is x = \frac{5}{6}y +\frac{-2}{3}

Step-by-step explanation:

solve for x

-4x + 9y = 14

add -9y to both sides

-4x + 9y + -9y = 14 + -9y

-4x = -9y + 14

divide both sides by -4

-4x/-4 = -9y + 14/-4

Anwser

x = \frac{9}{4}y + \frac{-7}{2}

solve for x

12x - 10y = -8

add 10y to both sides

12x - 10y + 10y = -8 + 10y

12x = 10y -8

Divide both sides by 12

12x/12 = 10y - 8/12

Anwser

x = \frac{5}{6}y +\frac{-2}{3}

NeTakaya3 years ago
3 0

Answer:

Step-by-step explanation: (Equation 2) = 12(-12+9y/4) - 10y = -8

-144+108y/4 - 10y = -8

-144 + 108y - 40y/4 = -8

-144 + 108y - 40y = -32

108y - 40y = -32+144

68y = 112

Y= 1.64

2-4x+9y=14

12x-10y= -8

2-14+9y = 4x

-12 + 9y = 4x ( equation 3)

(Put in equation 2)

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Which is the best interpretation of the solution set for the compound inequality?
saw5 [17]

For this case we must find the solution set of the given inequalities:

Inequality 1:

3 (2x + 1)> 21

Applying distributive property on the left side of inequality:

6x + 3> 21

Subtracting 3 from both sides of the inequality:

6x> 21-3\\6x> 18

Dividing by 6 on both sides of the inequality:

x> \frac {18} {6}\\x> 3

Thus, the solution is given by all the values of "x" greater than 3.

Inequality 2:

4x + 3

Subtracting 3x from both sides of the inequality:

4x-3x + 3

Subtracting 3 from both sides of the inequality:

x

Thus, the solution is given by all values of x less than 4.

The solution set is given by the union of the two solutions, that is, all real numbers.

Answer:

All real numbers

8 0
3 years ago
TRAP​ ~ EZYD. Use the diagram on the right to find the scale factor of TRAP to EZYD. Show work.
nikitadnepr [17]

The scale factor of TRAP to EZYD is 1.25.

<h3>What is dilation</h3>

Dilation is the increase or decrease in the size of a figure by a scale factor of k. If k > 1 it is an increase and if k < 1, it is a decrease.

To find the scale factor of TRAP to EZYD:

Scale factor = ZE / TR = 15 / 12 = 1.25

The scale factor of TRAP to EZYD is 1.25.

Find out more on dilation on: brainly.com/question/10253650

4 0
2 years ago
HELP ASAP!!!<br><br><br> ITS DUE IN A FEW MINUTES!!!
max2010maxim [7]

Answer:

A

Step-by-step explanation:

it is A because the graph move from a negative axis and move to positive axis at the top

4 0
2 years ago
I need answer and specific explanation plz...​
vitfil [10]

Answer:

The smallest model - bottom right - in the question diagram represents \sqrt[3]{64}=4.

Step-by-step explanation:

Considering the radical expression

\sqrt[3]{64}

Lets simply this radical expression first

As

\sqrt[3]{64}

\mathrm{Factor\:the\:number:\:}\:64=4^3

=\sqrt[3]{4^3}

\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a,\:\quad \:a\ge 0

\sqrt[3]{4^3}=4

      =4

Therefore, \sqrt[3]{64}=4

Now, as we can determine that \sqrt[3]{64}=4. So, the smallest model in the question diagram represents \sqrt[3]{64}=4 as each face of the cube of the smallest model in the diagram - bottom right - has 4 squares.

Therefore, the smallest model - bottom right - in the question diagram represents \sqrt[3]{64}=4.

Keywords: square cube root, radical expression

Learn more about radical expression from brainly.com/question/13984232

#learnwithBrainly

7 0
3 years ago
Please help ASAP<br><br> Question is in picture
umka21 [38]

Answer:

A,C,D

Step-by-step explanation:

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3 years ago
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