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ehidna [41]
3 years ago
6

Evaluate 2x2– 4xy – 3y2for x = 1 and y = - 1

Mathematics
1 answer:
nalin [4]3 years ago
6 0

Answer:

The answer is 3

Step-by-step explanation:

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PLEASE HELP ME THANK YOU
Bogdan [553]

Answer:

10 and 5

Step-by-step explanation:

10+5=15

10-5=5

6 0
3 years ago
Read 2 more answers
PLZZ! HELP WITH THIS! WILL GIVE BRAINLLEIST! PROMISE! AND 11 POINTS! FOR A SIMPLE ANSWER! THANKS TO ANYONE WHO ANSWERS THIS! HUR
Alenkinab [10]

Answer:

65.52 square feet

Step-by-step explanation:

to find area of a rhombus with the diagonals multiply them together and divide by two.

10.4 x 12.6 = 131.04

131.04/2 = 65.52 square ft

7 0
3 years ago
What is the simplified form of (81x^4y^9)^1/2
aniked [119]

Answer:

C 9 *x^2 y^ 4 y^ 1/2

Step-by-step explanation:

(81x^4y^9)^1/2

We know that (ab)^1/2 = a^1/2  *b^1/2

(81) ^1/2 * (x^4) ^1/2  * (y^9)^1/2

We know that a^b^c = a^ (b*c)

(81) ^1/2 * (x^(4*1/2)   * (y^(9*1/2)

9 *x^2 y^ 9/2

We know that y^9/2 = y^4 y^1/2

9 *x^2 y^ 4 y^ 1/2

7 0
3 years ago
Determine wether the following relationships are functions <br><br> (6,1)(4,2)(6,-3)(2,5)
IRISSAK [1]

Answer:

non- function

Step-by-step explanation:

any X being REPEATED (the first number of each pair) is non-function.

5 0
4 years ago
A spinner and 4 cards are shown below: A spinner with 5 equal sectors is shown in the figure. The colors Green, Blue, Purple, Ye
butalik [34]
1) Sample space of the spinner={Green, Blue, Purple, Yellow, Red}=5
2) Sample space of the cards={Red, Yellow, Blue, Pink }=4

1) P(spinner stops at purple) = 1/5
2) P(pink card selected) = 1/4

1) AND 2) are conditional probabilities:

P(spinner stops at purple ∩ pink card selected ) = (1/5)(1/4) = 1/20 =0.05
5 0
4 years ago
Read 2 more answers
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