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Luba_88 [7]
2 years ago
13

24. A rectangle has a length of x +5 and a width of 2x-9. Using the formula for the perimeter of a rectangle wrote an expression

to represent the perimeter of the rectangle in simplest form
Mathematics
1 answer:
Lisa [10]2 years ago
4 0

Answer:

Perimeter = 6x-8

Step-by-step explanation:

a=x+5

b=2x-9

Perimeter = 2*(a+b)

Perimeter = 2*(x+5+(2x-9))

Perimeter = 2*(x+5+2x-9)

Perimeter = 2*(3x-4)

Perimeter = 6x-8

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Which equation is in point-slope form for the given point and slope?
faust18 [17]

Answer: y-7 = 4(x+3), choice B

============================================

Point slope form is generally

y-y1 = m(x-x1)

we have m as the slope and (x1,y1) as the point this line goes through. In this case,

m = 4

(x1,y1) = (-3,7) so x1 = -3 and y1 = 7

So,

y-y1 = m(x-x1)

y - 7 = 4(x - (-3))

y - 7 = 4(x + 3)

which is why choice B is the answer

6 0
3 years ago
Read 2 more answers
ARE THESE TRIANGLES CONGRUENT?
Misha Larkins [42]

Answer:

yes

Step-by-step explanation:

because if you flip on top of the other they fit together

8 0
3 years ago
Read 2 more answers
Suppose a certain religious university has a ratio of approximately 90 males to 125 females enrolled as a students. If he curren
Nitella [24]
How many males and how many females would there be if the total enrollment is 15000?

Ratio is 

  90 males      15000 - x
  ------------- = ---------------
   125 fem              x

Then 90x = 1875000 - 125x, or 215x = 1875000

                                                      x = approx 8720 females
                       and 15000-8720, or 6279 males

If every male finds a dance partner, that would leave (8720-6279) females, or 2440, without dance partners.  ;(

Check:  is the male:female ratio near 90:125?

Is 6279:8720 approx equal to 90:125?

Yes.  0.72 (approx) = 0.72 (approx).
7 0
3 years ago
Write a situation that could be represented by the algebraic expression 3a + 2.15.
nordsb [41]

Answer:

5.15

Step-by-step explanation:

5.15 = 3a + 2.15

5.15 - 2.15 = 3a

3.15 = 3a

a = 0.05

I hope this helps you :)

8 0
3 years ago
Is 9/16 less than 8/12
Triss [41]
To solve this convert both values to fractions with a common denominator (48):
27/48 32/12
The answer to this problem is False/No because 8/12 is more than 9/16
3 0
3 years ago
Read 2 more answers
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