diontna29 diontna29

23-11-2018
Mathematics

contestada

If the value of b is 7, then what is the value of the expression -3b2 + 25 = ?

A. 17 B. –122 C. 122 D. 172. −3(7)2+25−3×49+25−147+25−122
B.-122

Respuesta :

jimrgrant1 jimrgrant1

23-11-2018

B

substitute b = 7 into the expression and evaluate

- 3 × (7)² + 25 = (- 3 × 49 ) + 25 = - 147 + 25 = - 122 → B

Answer Link

Otras preguntas

What polynomial when divided by 2y^5 yields 4y^2-2y+9 as a quotient?

what is a group of snakes called?

what are the kinds of formulas to remember in 8th grade?

Write the quadratic equation whose roots are-1 and 6, and whose leading coefficient is 4 (Use the letter to represent the variable.)?=0

In the given figure , if angel ROQ = 90 and angel POS : angel ROS = 4 : 5 , then the value of angel SOQ is

What was the Battle of Wounded Knee?

I need help.. 7k/8-3/4-5k/16=3/8seven "k" over eight minus three fourths minus five "k" over sixteen equals three eighths

write short notes on military dictatorship in Chile

If the supplement of an angle is two-third of itself ,then its supplement is

if a line passes through the point (1,9) and has a slope of 6 , write it as an equation