3 years ago

Simplify 2x2 - y for x= 3 and y=-2.

Mathematics

1 answer:

amm18123 years ago

7 0

Answer:

14

Step-by-step explanation:

Plug and chug

2

8*(3)*2 - (-2)

12 - (-2)

You might be interested in

Punctele A,B si C sunt coliniare in aceasta ordine.Aflati lungimea segmentului:a)AB,daca AC=20cm,BC=0,12dm

Strike441 [17]

Answer:

The length of the segment AB is 18.8 cm or 1.88 dm

Step-by-step explanation:

The question in English is

Points A, B and C are collinear in this order. Find the length of the segment: a) AB, if AC = 20 cm, BC = 0.12 dm

we have that

$AC=AB+BC$ ----> by Addition segment postulate

substitute the given values in centimeters

Remember that

$1\ dm=10\ cm$

$0.12\ dm=0.12(10)=1.2\ cm$

$20=AB+1.2$

solve for AB

$AB=20-1.2\\AB=18.8\ cm$

Convert to dm

$18.8\ cm=18.8/10=1.88\ dm$

therefore

The length of the segment AB is 18.8 cm or 1.88 dm

3 0

3 years ago

I NEED HELP ASAP PLEASE NO LINKS !!!

My name is Ann [436]

25-9=16 so 16 is the answer

8 0

3 years ago

Explain why the slope of a horizontal line is always zero

Monica [59]

The slope of a line is always zero because the line does not move up or down on the y-axis.

5 0

3 years ago

Read 2 more answers

I need some help please

Mama L [17]

Answer: 4

4 is the correct answer

5 0

3 years ago

What is the reciprocal of 9/2 and of 4/7 !pleasssee

Kitty [74]

Answer:

2/9 and 7/4(or 1 3/4)

Step-by-step explanation:

A reciprocal is just the original number flipped.

6 0

3 years ago