23CampL02 23CampL02

21-08-2019
Mathematics

contestada

Can someone help me with these?!

-10 - 15

-3+(-5)

-5x - 2y² + 1
X = 4
Y = -2

Respuesta :

Аноним Аноним

21-08-2019

-10-15= -25

-3+(-5) - positive sign and negative sign = negative sign

-3-5= -8

-5x - 2y² + 1

Use the substitution method

-5(4)-2(-2)^2+1

(-2)(-2)= 4

-20-8+1= -28+1

= -27

Answers :

-10-15= -25

-3+(-5)=-8

-5x - 2y² + 1= -27

Answer Link

Otras preguntas

A way measurable or visible way of describing something

How Many 4/3 are in 8

What is Party time on reading plus mainly about?

A truck is travelling at 30km/hr with engine delivering a driving force of 800n to the road Calculate the power developed and the work done in 25 seconds

Why did people want to restrict immigration to the United States? Choose all answers that are correct. A. Many people were unwilling to pay taxes to meet the so

The sum of a negative number 1/4 of the negative number and 7/16 of the negative number is -13 1/2. what is the negative number?

ax+b=3(x-a) solve for x

One end of a cable is attached to the top of a 60-foot pole. The other end is attached to the ground at a distance of 25 feet from the base of the pole. How lon

Can you eat scandium

What does 0.1x = 0.2y + 2 look like on a graph