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3 years ago

-3xy-x²y²+1 is evaluated when x=-1 and y=-1 , then what is the exact value ?

Mathematics

2 answers:

fredd [130]3 years ago

5 0

Answer:

-3

Step-by-step explanation:

-3(-1)(-1)-(-1)^2(-1)^2+1

=-3

hopes this helps?!?!

Juliette [100K]3 years ago

3 0

Answer -2

Step-by-step explanation:

-3(-1)(-1)-(-1)^2(-1)^2+1

-3-1+1+1

-4+2

=-2

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ankoles [38]

Answer:

c. 24

Step-by-step explanation:

15+9=24

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3 years ago

For every 140 feet that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles

Mars2501 [29]

Answer: The wheels turn about 3771 times in 5 miles.

Step-by-step explanation:

Given, Kelly rides on her bicycle such that the number of times wheels turn for every 140 feet = 20

Turns for every feet = $\dfrac{20}{140}=\dfrac{1}{7}$ ...(i)

To find : Number of times wheels turn in 5 miles.

Since , 1 mile = 5,280 feet

Then, 5 miles = 5 x (5,280 feet) = 26,400 feet

Now , Number of times the wheels turn in 26,400 feet = 26400 x (Turns for every feet)

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3 years ago

A store has 2 times as hooded sweatshirt as crewneck sweatshirts. The total number of sweatshirts is 36. How many hooded sweatsh

kozerog [31]

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3 years ago

Read 2 more answers

Find the measure of GE¯¯¯¯¯¯¯¯. A. 14 B. 20 C. 15 D. 16

julsineya [31]

Answer:

D. 16

Step-by-step explanation:

$GH^2 = GF \times GE$

$12^2 = 9 \times (9+x - 2)$

$144= 9 \times (7+x)$

$\frac{144}{9}= (7+x)$

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$16-7=x$

$9=x$

GE = 9 + x - 2 = 9 + 9 - 2 = 18 - 2

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4 years ago

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Aliun [14]

Answer:

Step-by-step explanation:

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3 years ago

-3xy-x²y²+1 is evaluated when x=-1 and y=-1 , then what is the exact value ?​

-3xy-x²y²+1 is evaluated when x=-1 and y=-1 , then what is the exact value ?