Answer:
I think C
so it's kind of a process of elimination you have to see the order of the numbers and what order each number is in so for A you can see that it's 345 is greater than 354 which is inspect cuz 354 is greater than 345 for B that's an obvious answer is is 400 is less than 40 which is obviously wrong because 400 is greater has two zeros and 40 only has one 0 for C it has 4008 is less than 4080which is actually correct if you look at the way that the numbers are written you could see that 80 is greater than 8 D it's obviously not correct because it says 20090 is equal to 23009 which is incorrect because 90 is greater than 9
Both triangles are similar. The area of the smaller triangle is about 270 ft2. Which is the best approximation for the area of the larger triangle? small traingle side is 25ft the bigger traingle side is 35ft.
We know the relation between the area of similar triangles and the side length
= ![\frac{side_s^2}{side_b^2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bside_s%5E2%7D%7Bside_b%5E2%7D%20%20)
area of the smaller triangle= 270 ft2
Let the area of bigger triangle =x
small traingle side=25ft
the bigger triangle side = 35ft
Ratio of sides is 25 : 35 that is 5:7
Now we make a proportion
= ![\frac{5^2}{7^2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%5E2%7D%7B7%5E2%7D%20%20)
270/x = 25/49
Cross multiply it
270 * 49 = 25 * x
13230 = 25x
divide by 25 on both sides
So x= 529.2
Area of larger triangle is approximately 530 square feet.
Answer:
(3,2)
Step-by-step explanation:
2x-4=y
2y+3x=13
We substitute the y in. They already gave us the equation 2x-4=y simplified so you would just plug this into the other equation
2(2x-4) +3x=13 : *distribute*
4x-8+3x=13 : *combine like terms*
7x-8=13 * add the 8 to the other side*
7x=21 *divide*
x=3
So the y=2x-4 is what we added in the place of the y to subtract it and solve for x. The second step would be solving for y. So now that we have our answer, 3 we plug it into the other equation preferably.
2(3)-4 =y : 6-4=y : 2=y
We can check our answer by pugging both x and y into both equations to make sure they are right. The statement should be true.
2x-4=y 2(3)-4=(2) 2=2
2y+3x=13 2(2)+3(3)=13 13=13