1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet-ann [11.9K]
3 years ago
15

Evaluate the expression 10x^-2y^-1 if x= -2, y = 1

Mathematics
1 answer:
Talja [164]3 years ago
6 0

10x^-2y^-1.

Plug -2 in for x and 1 in for y.

10(-2)^-2(1)^-1 = 0.25 or 1/4

You might be interested in
Solve the inequality <br> 5x+2 &lt; 32
AnnyKZ [126]

Answer:

x<6

Step-by-step explanation:

First, let's work on the left hand side of your inequality, the 5x+2

This means, for instance, to see if it can be simplified at all.

Multiply x and 5

Multiply x and 1

The x just gets copied along.

The answer is x

x

5*x evaluates to 5x

5*x+2 evaluates to 5x+2

So, all-in-all, the left hand side of your inequality can be written as: 5x+2

Now, let's work on the right hand side of your inequality, the 32

The right hand side of your inequality can be written as: 32

So with these (any) simplifications, the inequality we'll set out to solve is:

5x+2 ‹ 32

Move the 2 to the right hand side by subtracting 2 from both sides, like this:

From the left hand side:

2 - 2 = 0

The answer is 5x

From the right hand side:

32 - 2 = 30

The answer is 30

Now, the inequality reads:

5x ‹ 30

To isolate the x, we have to divide both sides of the inequality by the other "stuff" (variables or coefficients)

around the x on the left side of the inequality.

The last step is to divide both sides of the inequality by 5 like this:

To divide x by 1

The x just gets copied along in the numerator.

The answer is x

5x ÷ 5 = x

30 ÷ 5 = 6

The solution to your inequality is:

x ‹ 6

8 0
3 years ago
Read 2 more answers
Find the radius of a circle that has a circumference of 1671.
son4ous [18]

Answer:

r=8

Step-by-step explanation:

Given formula:

r = C / 2π

It is given that C = 16π

hence

r = 16π / 2π = 8

8 0
3 years ago
Los jornales de dos obreros suman S/.60. Si uno de ellos gana S/.12
8_murik_8 [283]

Answer:

Cada uno de ellos gana:

S/. 24

S/. 36

Step-by-step explanation:

Planteamiento:

a + b = 60

a = 12 + b

Desarrollo:

sustituyendo el valor de la segunda ecuación del planteamiento en la primer ecuación del planteamiento:

(12+b) + b = 60

2b + 12 = 60

2b = 60 - 12

2b = 48

b = 48/2

b = 24

de la segunda ecuación del planteamiento:

a = 12 + b

a = 12 + 24

a = 36

Check:

24 + 36 = 60

5 0
3 years ago
2 divided by 1/3 in simpleast form
leva [86]

Answer:

6

Step-by-step explanation:

When dividing by a fraction flip it over and multiply

2 / (1/3) = 2 * 3/1

2 / (1/3) = 6/1

2 / (1/3) = 6

8 0
3 years ago
The perimeter of a rectangle garden is 348 feet if the length of the garden is 93 feet what is the width?
Ber [7]
The width is 81 feet. 
93(2)+81(2)=348
3 0
3 years ago
Read 2 more answers
Other questions:
  • A two digit number when read from left to right to right consiststs of consecutive integers. the nmber is six more than for time
    13·1 answer
  • Let f be a function defined on the closed interval -3 on what intervals, if any, is f increasing
    12·1 answer
  • If you toss a fair coin five times and get tails every time, then the sixth toss MUST be heads. Is this true?
    7·1 answer
  • Kate Alexander worked 40 hours last week. Her pay rate is $8.50 per hour. Assuming 7.65% social security withholding, how much s
    5·1 answer
  • x^2+6x+4 Which of the following is equivalent to the expression above? Justify your answer. A) (x+3)^2+5 B) (x+3)^2-5 C) (x-3)^2
    15·1 answer
  • 2. The coordinate grid shows triangle RST. (x, y) - 0,-) S R. ✓ O (x,y) - (x, y) O (x,y) - (-y, x) O (x,y) - (-x, y) CLEAR ALL T
    12·2 answers
  • The first two terms of an arithmetic sequences are 7 and 3.
    11·1 answer
  • Help please!!! I don’t understand this
    14·1 answer
  • Josh is inviting his friends to a party he has 42 canola bars and 56 foot drinks and he wants to get the same number of each ite
    8·1 answer
  • On average, Carson spends about 26% of his allowance each month on candy and soft drinks. When creating a circle graph of what C
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!