jon3232

07.05.2020 • 

Mathematics

DAVID G. BARSHELL. SR. SCHOOL SYSTEM
(DAGBASS):
Royal Kids Preparatory (ROPKIP)
Daycare, Elem. Jr. & Sr. High School
Barclay Mission Road, Paynesville, Liberia
Subject: Mathematics
Class: 11th Grade (4th Marking Period Test)
Name:
Date:
Score
Part I: Objectives (4 points each)
Direction: Circle the correct letter that bears the correct answers(NO ERANUS
1. Give 0º =0–90°, solve the value of 0 in cos 0= sin e
a, 30°
b. 60°
c. 45°
d. 90°
2. Solve for x in cos? x +2 = 3
a. 45°
b. 0°
c. 90°
d. 60°
3. In the interval 0º < y < 360°, determine the values of y in 3cos y - 2 = 0
i. 48.2
ii, 228.2°
iii. 311.8°

Ответ:

trevorhenyan51

06.09.2021

Mathematics

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side 1: t - 1

side 2: t + 1

side 3: 4

side 1 + side 2 > side 3   &  side 2 + side 3 > side 1   &  side 3 + side 1 > side 2

(t - 1)   + (t + 1)   >   4              (t + 1)   +   (4)    >   (t - 1)            (4)     + (t - 1)  >  (t + 1)

       2t > 4                                  t + 5          >   t - 1                      t + 3       >   t + 1

         t > 2                                       5 > -1   (TRUE)                            3 > 1 (TRUE)

t > 2

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