Answer:
Find the Equation of a Line Given That You Know Two Points it Passes Through. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.
Step-by-step explanation:
Hello! I would love to help!
Let's think...
What number times 2 plus that number is equal to 71.
Let's set up an equation!
What number times 2 (2x) + that number (x) is equal to 71?
Let's write the formal equation now!
2x + x = 71
Let's solve!
Start by combining like terms!
2x +x is 3x
Okay, now we have 3x=71
Let's solve by dividing each side by 3.
Now we have 23.667 or 23 2/3=x
So, the first number is 23 2/3
Let's multiply that by 2 to get the other number!
23 2/3*2= 47 1/3
So, the two answers are 47 1/3 and 23 2/3.
To check, you can add them together, and see if it comes out as 71.
47 1/3 + 23 2/3 = 71
Those are the right answers!
Hope this helps! Comment if you have questions! :)
Answer:
117
Step-by-step explanation:
So basically, how I figured it out is 20-15 is 1/4 of 20. So I had to find the 1/4 of 52 which is 13. But 15 is 3/4 of 20 so then you multiply 13 times 3 which is 39.
10 is half of 20. So you find half of 52. Which is 26.
52+39+26 is your equation.
Which adds up to 117. So 117 is your answer
I used 20 because in the smaller triangle 20 was the largest side like 52 in the biggest triangle.
<em>Brainliest would be highly appreciated</em>
<em>Please tell me if it is wrong</em>
<em>Have a great day!</em>
Answer:
B.9
Step-by-step explanation:
Order of Operations：
Exponent, Parenthesis, Multiply/Divide, Add/Subtract
Thus, we do 2^3 first, then 4x2, and finally -7
（8）+（8）-（7）
=9
Answer:
A. -2sin(x)sin(0.4x)
Step-by-step explanation:
At x=0, the given expression evaluates to zero.
For x near zero, the given expression is slightly negative. You know this because cos(1.4x) decreases faster than cos(0.6x), so their difference will be negative.
Of the answer choices, you can eliminate C and D because they are not zero at x=0. You can eliminate choice B, because it is positive for values of x near zero. The only viable choice is A:
-2sin(x)sin(0.4x)
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Of course, a graphing calculator can help you figure this out. See the attachment. The given expression is plotted using a solid red line; the answer choice A is plotted using blue dots.
