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-BARSIC- [3]
3 years ago
12

Study the expression x-y+ z(x + y) Evaluate the expression if x = 10, y = -1, and z=0

Mathematics
1 answer:
vovangra [49]3 years ago
4 0

Answer:

<em>The value of the expression is 11</em>

Step-by-step explanation:

<u>Evaluate Expressions</u>

An algebraic expression consists of a set of variables and constants related by algebraic operations like addition, subtraction, multiplication, etc.

To evaluate an algebraic expression, we replace the variables for the constant value they are assigned.

Let's consider the expression:

x-y+ z(x + y)

for x=10, y=-1, z=0

Substituting the variables for their values:

10-(-1)+ (0)(10 -1)

=10+1+ (0)(9)

=11+0=11

The value of the expression is 11

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If a sphere’s radius is quadrupled, what is the corresponding change in the volume?
vovangra [49]
The volume is proportional to the cube of the radius:
4^3=64
The volume will be 64 times the original value!




6 0
3 years ago
Scientists studying biodiversity of amphibians in a rain forest have discovered that the number of species is decreasing by 2% p
kupik [55]

Answer:

Select the correct answer.

Scientists studying biodiversity of amphibians in a rain forest have discovered that the number of species is decreasing by 2% per year. There are currently 74 species of amphibians in the rain forest. Which logarithmic function models the time, , in years, it will take the number of species to decrease to a value of n?

The answer is D.

Step-by-step explanation:

8 0
3 years ago
What number makes the equation true? Enter the answerin<br> 3= 12
shepuryov [24]

Answer: ?

Step-by-step explanation:

5 0
3 years ago
(7x-y=7<br>(x+2y=6 estimate the solution to the system of equations ​
jolli1 [7]

Multiply the first equation by 2 to then use elimination by adding the 2 equations.

So, 14x-2y=14

+. x+2y=6

Equals 15x=20 so x=20/15=4/3

Plug in to first equation to get y

7(4/3)-y=7

28/3-y=7

28/3-y=21/3

So y=7/3

Plug both x and y into second equation to check

4/3+2(7/3)=

4/3+14/3=18/3=6 it works

So x=4/3, y=7/3

Hope this helps! Have a blessed day!

8 0
3 years ago
What is [(7x^3)(y^2)]^2/7 in radical form?
GuDViN [60]
Remember
x^ \frac{m}{n} = \sqrt[n]{x^m}
and
(zy)^m=(z^m)(y^m)
and
(x^m)^n=x^(mn)

so
((7x^3)(y^2))^ \frac{2}{7} = \sqrt[7]{((7x^3)(y^2))^2}=
\sqrt[7]{((7x^3)^2(y^2)^2)}=
\sqrt[7]{((7^2x^6)(y^4))}=
\sqrt[7]{((49x^6)(y^4))}=
\sqrt[7]{49x^6y^4}
8 0
3 years ago
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