1. What is the simplified form of (–3x^3y^2)(5xy^–1)?
I think it is 15x^4y
2. What is the simplified form of –9m^–2n^5 × 2m^–3n^–6?
I have no idea on this one. :/
3. A rectangular pasture has a fence around the perimeter. The length of the fence is 16x^7 and the width is 48x^4. What is the area of the pasture?
Agian IDK
4. What is the simplified form of (3.25 × 10^3)(7.8 × 10^6) written in scientific notation?
2.535 x 10^10 maybe?
5. The size of a certain cell is 2.5 × 10^–9 m. Another cell is 1.5 × 10^3 times larger. How large is the larger cell in scientific notation?
I think 4 x 10^-27
BTW, Please tell me the right anwsers on the ones i missed. I have tried to do this. Thanks!
1. C
2. B
3. C
4. A
5. D
100% correct. Thanks for helping me double check my answers.
#1
-15x^4y
#2
–9m^–2n^5 × 2m^–3n^–6?
= -18m^-5 n^-1
or
-18/(m^5n)
#3 area = length x width
= (16x^7)(48x^4)
= 768 x^11
#4 correct
#5
2.5 × 10^–9 x 1.5 × 10^3
= 3.75 x 10^-6
Ahhh, Reiny came in. Excellent!
Yeah I got a 6/7 with I don't know's answers.
The asnwers for me were
C
B
C
A
D
C
Hope this helps
Anonymous GACA is 100% right
Unit:2 Lesson:3 Quick Check
1. C
2. B
3. C
4. A
5.D
Valid: 2/14/2020 16:24/ 4:24 PM
Ratpack for life.
c
b
c
a
d
connections lesson 3 unit 3