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ankoles [38]
3 years ago
5

-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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Serga [27]

Answer:

See below (I hope this helps!)

Step-by-step explanation:

When dividing exponential terms of the same base, we can simply subtract the exponents, therefore:

\frac{x^{6} }{x^{8} } = x^{(6-8)} = x^{-2}

5 0
4 years ago
HELP WHAT IS THE ANSWERS
Temka [501]

Answer:   Letter Choice, (B)  ====>  4,256 pi cm^2


Step-by-step explanation:

<u>Formula: Surface Area of Cylinder  =   (2pi ) (r^2 )   +  2pi (r) (h)</u>



<u>Showing Work:</u>

<u>Radius  of the Base ===>  28cm</u>

<u>Height  =====>  48cm </u>

(2pi ) (r^2)    +   2pi (28)(48)

2 (pi) (r^2)     +    (circumference) (height)

2( pi) (r^2      +    2)( pi)(r)(h)

2 pi * (2) (r^2      +    (2)(r)(h)

2pi * (r^2        +       rh)

2(r)(pi)(r           +         h)

2( 28)(pi)(28       +       48)

56(pi)(76)

4256(pi)^2

<u>Therefore, Your Answer  ======>   Letter Choice; (B)  ======>  4,256pi cm^2</u>





Hope that helps!!!!!                                       : )


3 0
3 years ago
Marcus earns money from feeding cats and answering emails. He earns $7 a week for each cat he feeds and $0.20 for each email he
Dmitry_Shevchenko [17]
A.
7 times number of cats=pay
if pay=49 then
7 times number of cats=49
divide both sides by 7
number of cats=7

da equaton can be
c=number of cats
7c=49

he fed 7 cats


B.

7c=49
divide both sides by 7
equality property of division
(7c)/7=49/7
math fact
(7/7)c=7
1c=7
identity property of division
c=7
identity property of multiplication
7 cats

C. 7 cats
4 0
3 years ago
Find the value of x in the triangle shown below
gregori [183]

Answer:

A or 53 squared

Step-by-step explanation:

3 0
3 years ago
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