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marusya05 [52]
3 years ago
14

What is the area of a rectangle that is (4x - 2) long and (2x + 5) wide?

Mathematics
1 answer:
Tju [1.3M]3 years ago
6 0

Answer:

A=l*w

(4x-2)(2x+5)

8x^{2} -4x+20x-10\\8x^{2} +16x-10

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How to solve this? Don't just give me the answer help me learn this.
Sphinxa [80]

Answer:

I'm not entirely sure but I think that what is says is that it wants you to find the value of x in (4x+28) to make it 116 degrees because it is that same angle. So what you do is you get (4x+28)=116 and you do this because they are the same angle so you use 116 and get it to solve x. Since I'm lazy, then I go to this website and type the equation in: m a t h w a y . c o m but without all of the spaces, I had to do that so it would let me answer this, but I'll do it the real way this time. (4x+28)=116  Their is a rule in math that as long as you do something to one side of the equal sign in the equation, you have to do it to the other and it will still work. So, you minus 28 from both sides so that you can get rid of it and you now have 4x=88. Now you should know this part but you divide 4 from both sides to make so x is alone. Now you have x=22 because you divided 4 from each side. So their is your answer: x=22.

Step-by-step explanation: If you have the answer key that you can check from to make sure you got it right because I know some teachers let you do that, then you should make sure that is right, but I am pretty sure it is.


6 0
3 years ago
What's to make 3 1/2 dozen muffins. The recipe calls for 3/4 cup of milk an 1 1/8 cup of carrots for a dozen. How much milk does
Nesterboy [21]
So u want 3/4 cup x 3 and 1/2

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3 0
3 years ago
Read 2 more answers
Is the following correspondence a function? <br>Yes or No?
cestrela7 [59]
No, because -15 have 2 corresponding elements .
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3 years ago
In a survey of 400 people randomly selected it was determined that 22 play soccer. What is the probability that a randomly selec
galben [10]
The answer to this problem is 0.055%
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3 years ago
F(n+1)=f(n)-8 if f(1)=100 what is f(6)
Svet_ta [14]

f(n+1)=f(n)-8\\\\ f(2)=100-8=92\\ f(3)=92-8=84\\ f(4)=84-8=76\\ f(5)=76-8=68\\ f(6)=68-8=60

8 0
3 years ago
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