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Norma-Jean [14]
3 years ago
8

Find the area of the trapezoid 5,4,9 please help

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0
The answer to your question is 40.5 units.
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The equation is ax+r=7 <br><br>how do I solve for r??
Strike441 [17]
The solution is r= 7/a-x How did i do this?
Your equation is ax+ r=7, so the goal is to isolate the r. You begin by dividing the a from the ax. Remember, what you do to one side, you must do to the other. So you do 7/a, since you can't simplify 7/a, leave it as it is. Next, your equation should look like this x+r=7/a. In order to isolate the r, you move the x to the other side by subtracting, which leaves you with the answer of r= 7/a-x.
Hope this helped!
7 0
3 years ago
Read 2 more answers
Simplify:<br><br><br>4(r + 1) + 3r<br><br> A. 4r + 4<br> B. 5r + 1<br> C. 7r + 1<br> D. 7r + 4
klasskru [66]

Answer:

look in the explanation, it is in there

Step-by-step explanation:

i don't know if you are distributing or just using PEMDAS .

if you are distributing then: do in the equation 4(r + 1) + 3r.. do 4 x r and 4 x 1 , now you have 4r + 4 + 3r

                        7r +4

                      is what i got!

If you are doing PEMDAS then: first you do what is inside the perenthisis ()

4(r + 1) +3r changes into

4( r1 ) + 3r now you do multipulcation because that in the "M" in pemdas

4r + 3r, then if you are using like terms you would add them

7r

i hope this helps you out!

6 0
3 years ago
Read 2 more answers
Which triangles are right​ triangles? Select all that apply.
Setler79 [48]

Answer:

triangle 1, triangle 3,

Step-by-step explanation:

Triangle 1= 14^{2} + 24^{2} = 772\\196+ 576 = 772

Triangle 2=  is wrong

Triangle 3= 11^{2} + 22^{2} = 605\\121+ 484= 605

Triangle 4= is wrong.

7 0
2 years ago
What is the rate of change between the (-3,0) and (-2,-5)?
aleksandr82 [10.1K]

Answer:

Rate of change (slope) = -5

Step-by-step explanation:

Rate of change = (-5 -0) / (-2 - - 3) = -5/1 = -5

6 0
2 years ago
What is the solution of the system?
mario62 [17]
Y + 7 = 3x.....y = 3x - 7

6x - 2y = 12
6x - 2(3x - 7) = 12
6x - 6x + 14 = 12
14 = 12 (incorrect)

when ur variables cancel out and u r left with an incorrect statement, this means there is no solution because ur lines are parallel

so ur answer is : no solution
5 0
3 years ago
Read 2 more answers
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