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vesna_86 [32]
3 years ago
7

Write an expression to represent the perimeter of: 2a-3 2a 3a+1

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0
I am assuming this is a triangle.....P = a + b + c

P = 2a - 3 + 2a + 3a + 1....combine like terms
P = 7a - 2 <==
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pogonyaev
Okay, so total dogs are 49.
So we know if x=large dogs and y=small dogs, then x+y=49.
Next we are told that there are 36 MORE small dogs than large dogs. We can take that more meaning addition, and x being our value for large dogs. So y=x+36.
After that we now know what value we can plug in for y. So x+x+36=49.
We can then simplify it to 2x+36=49.
Subtracting the 36 from both sides, leaves you with 2x=13.
Followed by dividing both sides by 2, gives you x=6.5. Or 6.5 large dogs.
Now we can plug this into our formula for the small dogs (y=x+36) to give us y=6.5+36, which simplifies to y=42.5. Or 42.5 small dogs. Which is our answer.
We can double check it by adding the small and large dogs together, 6.5+42.5, which gives us 49, our total entries.
4 0
3 years ago
Read 2 more answers
4. In slope-intercept form, what is the equation of a line perpendicular toy - 2x + 7 that passes
Phoenix [80]

Answer:

y = (-1/2)x + 21/2

Step-by-step explanation:

Given equation:

y - 2x + 7

Coordinates = (5,8)

Find:

Perpendicular equation

Computation:

y = mx + c

y - 2x + 7

y = 2x - 7

So,

m = 2

The negative reciprocal of 2 is -1/2

So,

For,

Coordinates = (5,8)

y = mx + c

8 = (-1/2)(5) + c

8 = -5/2 + c

c = 8 + 5/2

c = 21 /2

So,

y = mx + c

y = (-1/2)x + 21/2

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3 years ago
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NARA [144]
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Murljashka [212]

Answer:

option b

Step-by-step explanation:

f(2)=-2 is the answer

8 0
3 years ago
Let f(x) = x^2+1 and g(x)= 4x+7. Evaluate and simplify the following f(g(x))=
baherus [9]

Answer:

See in attachment and Mark as brainleist please.

3 0
3 years ago
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