Answer the question or complete the sentence to make a true statement.According to the rules for the order of operations, what should be the first step when simplifying the expression [-4 + (-7 + 4)] + (-8 + 6)?
A. Find the sum of -4 and -7
B. Find the sum of -4 and -8
C. Find the sum of -7 and 4
D. Find the sum of 4 and -8
Answer: C
Mathematics
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Write each inequality in interval notation and graph the interval on a number line.0 < x < 4
A. [0, 4]
B. (0, 4)
C. (0, 4]
D. [0, 4)
Mathematics
Use truth tables to test the validity of the argument.~q ? ~p
? ~q
A. Invalid B. Valid
Mathematics
R1 = 55 Kê, R2 = 5.5 Kê, R3 = 2.2 Kê, R4 = 0.51 Kê, HFE = 90, and VCC = 18 V. Find VOC and RTH.
a. 20.15 æA
b. 61.8 æA
c. 89.2 æA
d. 94.9 æA
e. 100.6 æA
Mathematics
The hypotenuse of a right triangle is 13.0, and one leg is 2.0 units shorter than the other. Find the dimensions of the figure (rounded to the nearest tenth).
What will be an ideal response?
Mathematics