Need help pls
we use a+b+c equations barely today HELP PLS IM LOST
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Explanation:
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a + b + c = 180 .
(in which, "a" , "b", and "c" represent the measurements (in degrees" of each of the THREE (3) angles in a triangle; which always add up to "180 degrees");
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Given "a = 65 degrees"; "b = 56 degrees"; Find "c" (the measurement of the "unknown" angle.).
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a + b + c = 180 ;
65 + 56 + c = 180 ; Solve for "c" .
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180 - (65 + 56) = c ;
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Note: 65 + 56 = 121 ;
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So: 180 - (65 + 56) = 180 - 121= 59 = c ; ↔ c = 59 .
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The answer: 59° .
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26. you'll have to convert each side from centimeters to feet using the ratio given to you (2cm=3ft). See the picture I attached. Final answer is A, 972 ft2.
27. Set up an equation. Make x the smallest number. Since 40 is the sum of 4 consecutive odd numbers, each number is two more than the number before it. Represent each number in terms of x.
#1: x
#2: x+2
#3: x+4
#4: x+6
The sum of the four numbers is 40, so set them up as an addition problem on one side of the equation. Make the other side 40.
x+x+2+x+4+x+6=40
Combine the x's.
4x+2+4+6=40
Add the numbers.
4x+12=40
Isolate 4x by subtracting 12 from each side.
4x=28
Divide by 4 to get x by itself.
x=7
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7+9+11+13=40
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Answer:
I believe that the answer is 7.4 * 10^2 + 2
-- The answer to that equation is 754.8 if that was needed as well
Step-by-step explanation:
Please mark brainliest I would really like it if you did! I just want one brainliest...
Standard form is a way of writing down very large or very small numbers easily. 103 = 1000, so 4 × 103 = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form.Small numbers can also be written in standard form. However, instead of the index being positive (in the above example, the index was 3), it will be negative. The rules when writing a number in standard form is that first you write down a number between 1 and 10, then you write × 10(to the power of a number)., so I believe the answer would be 7.4*10^2+2
Hope I helped :)