All categories

2 years ago

Correct answer's only (Highlighted due to glitch) But please help.

Mathematics

1 answer:

andrew-mc [135]2 years ago

3 0

The easiest way is to plug x=-4, y=-1 in the equation to see which one works.
8(-4)-9(-1)=-23
B is correct.

You might be interested in

(I hate to say this, but I'm really struggling with this math probelm! Help please! )

Ira Lisetskai [31]

a. difference in wages = 941 - 770 = $171

as a percentage tis is (171/770) * 100

= 22.2 % answer

8 0

2 years ago

The difference between two numbers is 9 and the product of the numbers is 162. Find the two numbers

fiasKO [112]

Let the no be X and Y

acc to ques....

x-y=9 .........1

xy=162 ..........2

substituting value from 1 in 2 we get;

x=9+y

[9+y][y] = 162

y^2+9y = 162

y^2 + 9y - 162=0

y^2 + 18y - 9y - 162=0

y[y+18] + 9[y+18]=0

[y+9][y+18}

y= -9.................................3

y= -18......................................4

case 1 :

y= -9

x = 9-9=0

case 2:

y= -18

x= 9-18 = -9

7 0

3 years ago

Simplify each expression

joja [24]

Answer:

14y

10x

8x+4

6x+6

8x+4

8 0

2 years ago

Can I have help with these? Picture attached.

8_murik_8 [283]

Answer:

5. mCD is 27.8° | 7. mAFC 52.3° |

Step-by-step explanation:

8 0

2 years ago

Simplify -3y+2x-5y-7x

Sphinxa [80]

<h3><em><u>Simplify -3y+2x-5y-7x is:</u></em></h3><h3>-8y - 5x</h3>

<em><u>Solution:</u></em>

<em><u>Given that, we have to simplify</u></em>

$-3y + 2x-5y-7x$

We can simplify the above expression by combining the like terms

Like terms are terms that has same variable ( with same exponent) with same or different coefficient

From given,

$-3y + 2x-5y-7x$

Here, like terms are -3y and -5y

And 2x and -7x

Group the like terms

$-3y-5y+2x-7x$

Combine the like terms

$-8y -5x$

Thus the given expression is simplified

6 0

2 years ago