Question

What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2?

 

Which is equal to 33 • 35?   A. 3^−2   B. 3^2   C. 3^8   D. 3^15    

(I think its C( above number 2)

( The first picture wants to know what the blank is: 11^what)

Which is equal to (second pic)   ?   A. 10−36   B. 10−4   C. 109   D. 1015

Answer 1

`1)4a^3-2b^2+5= 4* 3^3 - 2*(-2)^2+5= \\ \\ =4*27-2*4+5= \\ \\ =108-8+5= \\ \\ =100+5 \\ \\ =\boxed{105}`

2) 33*35=1155

A= 3⁻²= 1/3²= 1/9

B=3²=9

C=3⁸= 6561

D=3¹⁵= 14.348.907


`3)11^(24) \\ \\ 4) (10^(12))/(10^(-3))=10^(12)* 10^(3)=10^(15)`