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aivan3 [116]
1 year ago
8

Evaluate the expressions when x = 3; y = 4 & z = -2

Mathematics
1 answer:
WINSTONCH [101]1 year ago
7 0

Answer:

Sub in the numbers given to x, y, z and use calculator to solve

You might be interested in
Solve the following equation for x.<br> 3x - 9 = -42
r-ruslan [8.4K]

Answer:

x = -11

Step-by-step explanation:

Add 9 to both sides of the equation

3 − 9 = −42

3 − 9 + 9 = −42 + 9

Simplify

Add the numbers

3 = −33

Divide both sides of the equation by the same term

3 = −33

3/3 = −33/3

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

= −11

3 0
2 years ago
If x=10^a , y=10^b and x^b.y^a=100.prove that xy=1​
BabaBlast [244]

Answer:

ab=1

Step-by-step explanation:

Assuming that you meant ab=1

x=10^{a}\\\\y=10^b\\\\x^b*y^a=100\\\\(10^a)^b*(10^b)^a=100\\\\10^{ab}*10^{ba}=100\\\\10^{ab+ba}=100\\\\10^{2ab}=100\\\\(10^2)^{ab}=100\\\\100^{ab}=100\\\\ab=1this is because the exponents have to be equal

8 0
3 years ago
Which triangle is a translation of the orange triangle?<br><br><br><br> Δ4<br> Δ2<br> Δ3<br> Δ1
Luden [163]

Answer:

4

Step-by-step explanation:

Translation means just move the object. It's not Dilation (2) not Reflection (1) not rotation (3)

so the answer is 4

7 0
2 years ago
Siblings Brandon Brooke truant and Trisha owe there parents 100$ write a number sentence to show how much each sibling owes if t
Fynjy0 [20]

Answer:

25?

Step-by-step explanation:

100/ 4=25

3 0
2 years ago
Help me please please please please please ​
Pavlova-9 [17]

Step-by-step explanation:

x⁴+3x³-4x²=0

x²(x²+3x-4)=0

x²+3x-4=0

x²+4x-x-4=0

x(x+4)-1(x+4)=0

(x+4)(x-1)=0

x=-4 or 1

x can't be negative

therefore x=1

x+4=1+4=5

6 0
2 years ago
Read 2 more answers
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