I need with explanation

Mathematics

1 answer:

Vitek1552 [10]2 years ago

5 0

Which of the following (1, 16, 27, 81) is not a square number?

You might be interested in

Which is the solution set of the inequality 15y-9<36?

AnnyKZ [126]

Answer:

The solution set is;

y < 3

This means the values of the real numbers set that are less than 3 in value

Step-by-step explanation:

Here, we want to get the solution set of the inequality

what we have to do is to get the value of y

We have this as;

15y < 36 + 9

15y < 45

y < 45/15

y < 3

3 0

3 years ago

Evaluate the<br> expression below when<br> a= -5 and b= 2<br> 0.5a - 2b

mario62 [17]

Answer:

Step-by-step explanation:

0.5(-5) - 2(2)

= -0.25 - 4

= -4.25

8 0

3 years ago

Look at picture. What is the solution WORTH 10 points. Show work.

lakkis [162]

$\left\{\begin{array}{ccc}2x-y=6\\2x-2y=4&|\text{add 2y to both sides}\end{array}\right\\\left\{\begin{array}{ccc}2x-y=6\\2x=4+2y&|\text{divide both sides by 2}\end{array}\right\\\left\{\begin{array}{ccc}2x-y=6\\x=2+y\end{array}\right\\\\\text{Substitute x=2+y to the first equation}\\\\2(2+y)-y=6\ \ \ \ |\text{use distributive property}\\(2)(2)+(2)(y)-y=6\\4+2y-y=6\\4+y=6\ \ \ \ \ |\text{subtract 4 from both sides}\\\boxed{y=2}\\\\\text{Put the value of y to the second equation}\\\\x=2+2\\\boxed{x=4}$