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earnstyle [38]
3 years ago
5

Evaluate the algebraic expression for the given values of x = 3 and Y =4 7 x - 2y-1​

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

the answer is 12

Step-by-step explanation:

7x-2y-1. x=3. y=4

7×3-2×4-1

=21-8-1

=12

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Help me please I need it
KatRina [158]
The domain is the furthest point on the x axis so you would have. [-6,infinity) and range is the lowest point on the y axis so. [-2,infinity)

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4 0
3 years ago
Alex is planning to surround his pool ABCD with a single line of tiles. How many units of tile will he need to surround his pool
Zolol [24]

Answer:

19.82 units

Step-by-step explanation:

The number of units of tile simply refers to the perimeter.

So, we need to find all the sides of the rectangle.

Now, we have AB = 4.24 units and BD = 7.07 units.

So, we can find AD using pythagoras theorem.

So,

(AD)² + 4.24² = 7.07²

(AD)² + 17.978 = 49.985

(AD)² = 49.985 - 17.978

AD = √32.007

AD = 5.66 units

AD = BC = 5.66 units

Likewise, AB = DC = 4.24 units

Thus,

perimeter = 2(5.66) + 2(4.24) = 19.8 units

Closest answer among the options is approximately 19.82

7 0
3 years ago
This is the term in a polynominal without a variable
Scorpion4ik [409]

Answer:

Constant

Step-by-step explanation:

In the polynomial "a(x^2) + bx + c," c is a constant

3 0
3 years ago
Read 2 more answers
Which value is closets to 8 11/20 A)8 B)8 1/2 C)8 3/4 D) 9
Alona [7]
I would say the answer is B. 8 1/2 because 11/20 is close to 10/20 which would be the same as 1/2
4 0
3 years ago
14 and 15, please :p explanation would also be appreciated!!
liraira [26]
14. B (4, -2)
15. I am not exactly sure about this one but I would say either A or B.
8 0
3 years ago
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