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

$3)11^{24} \\ \\ 4) \frac{10^{12}}{10^{-3}}=10^{12}* 10^{3}=10^{15}$