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forsale [732]
2 years ago
5

Evaluate the expression 3^-3×3^-2show work​

Mathematics
1 answer:
vekshin12 years ago
8 0

Answer:

To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.

Step-by-step explanation:

hope this helps

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how can you copy a line segment using a straightedge, a compass, and a pencil, give step by step instructions
GuDViN [60]
You can can copy a line segment by making sure the line is straight
7 0
3 years ago
Easy fraction ieenienebdjiwsdlwbeuwofcuwoo justify your answer explain it pls
r-ruslan [8.4K]
The answer will be 1 13/18
It is because you will have to change the mixed number into a improperfaction that will turn into 23/9 -5/6. Then you will need to change the denominator to the same number you can change it into 18. 46/18-15-18= 31/18= 1 13/18
6 0
3 years ago
What is the perimeter of XY Z? please explain step by step
Naily [24]

The perimeter of ΔXYZ is 126 units.

Solution:

Given ΔPQR \sim ΔXYZ.

In ΔPQR,

PQ = 5, QR = 10, PR = 6

In ΔXYZ,  XY = 30

Perimeter of ΔPQR = PQ + QR + PR

                                = 5 + 10 + 6

                                = 21

Perimeter of ΔPQR = 21

To find the perimeter of ΔZYZ:

If two triangles are similar then the ratio of the perimeters of two similar triangles is same as the ratio of their corresponding sides.

$\Rightarrow\frac{PQ}{XY} = \frac{\text{Perimeter of} \Delta PQR}{\text{Perimeter of} \Delta XYZ}

$\Rightarrow\frac{5}{30} = \frac{21}{\text{Perimeter of} \Delta XYZ}

Do cross multiplication, we get

⇒ 5 × Perimeter of ΔXYZ = 30 × 21

⇒ 5 × Perimeter of ΔXYZ = 630

Divide by 5 on both sides of the equation.

⇒ Perimeter of ΔXYZ = 126

Hence the perimeter of ΔXYZ is 126 units.

4 0
4 years ago
What is the slope of this graph?
Verdich [7]

Answer:

6/12 or 1/2 which is 0.5

Step-by-step explanation:

I hope this is right, because I'm doing this stuff as well in class.

Slope is always rise over run. It is rising by 6 and it is running (going across) by 12. This fraction (6/12) can be simpiled to 1/2 and that can be narrowed down to 0.5.

Hope this is clear and correct.

8 0
3 years ago
What is the image point of (9,9) after a translation right 5 units and down 4 units?
Alona [7]

Answer:

the answer is (4,5)

Step-by-step explanation:

hope this helps

Can I have brainliest I'm new to brainly

7 0
4 years ago
Read 2 more answers
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