2 years ago

Evaluate the following if x = 2, y = -1 and z = 5.

Mathematics

1 answer:

Darina [25.2K]2 years ago

6 0

Answer: please mark as brainliest

Step-by-step explanation: a) xz+1 = 2 x 5 + 1 = 11

b) 4x+y = 4 x 2 + (-1) = 7

c) 2 - 2 x -1 x 5= 12

d) 2(-1 + 5) = 2 x 4= 8

e) 2sq - 3 x 5= 4 - 15= -11

You might be interested in

At the beginning of the day the stock market goes up 30 1/2 points. At the end of the day, the stock market goes down 100 3/4 po

Akimi4 [234]

Well, is namely their difference, so, let's first convert the mixed fractions to "improper", and subtract.

$\bf \stackrel{mixed}{30\frac{1}{2}}\implies \cfrac{30\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{61}{2}}
\\\\\\
\stackrel{mixed}{100\frac{3}{4}}\implies \cfrac{100\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{403}{4}}\\\\
-------------------------------\\\\
\cfrac{61}{2}-\cfrac{403}{4}\impliedby \textit{so our \underline{LCD is 4}}\implies \cfrac{(2\cdot 61)~-~(1\cdot 403)}{4}
\\\\\\
\cfrac{122-403}{4}\implies \cfrac{-281}{4}\implies -70\frac{1}{4}$

5 0

3 years ago

Find f^-1(x) for f(x)=1/x^3

Nata [24]

if you love god give me 5 stars.................

4 0

3 years ago

What is expanded number 289 mean

natita [175]

200
80 thats the answer
9

4 0

4 years ago

Write the numbers in expanded form 592,682

Alona [7]

Five hundred ninety two thousand six hundred eighty two

6 0

3 years ago

Read 2 more answers

How to graph a proportional relationship and calculate the unit rate.

poizon [28]

Answer:

The best way to show and explain direct proportional relationships is by graphing two sets of related quantities. If the relation is proportional, the graph will form a straight line that passes through the origin.

7 0

3 years ago