Find the measure of two complementary angles, a and b, if m a = 7x + 4 and m b =4x + 9
2 answers:
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Answer:
Step-by-step explanation:
This can be simplified by combing like terms.
8x^2 and 15x^2 are like terms. Since both numbers are positive, we add them together.
The sum of 8x^2 and 15x^2 is 23x^2
I hope this helps.
Answer: [B}: " " .
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<u>Step-by-step explanation</u>:
The perimeter, "P", of the given quadrilateral [which is a trapezoid]; refers to the value of the sum of all the [Four (4) — in this case] side lengths of the given quadrilateral.
Note that the all the [four (4)] side lengths are given.
The answer choices provided are "simplified expressions" that all contain one variable; which is— "a" .
Note that all side lengths of the figure have side lengths that contain one variable—which is— "a" .
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So, to calculate the perimeter, "P" :
Let us add up all the 4 (four) given side lengths of this quadrilateral:
P = (5a − 7) + (7a + 2) + (4a + 3) + (4a) ;
= 5a − 7 + 7a + 2 + 4a + 3 + 4a ;
Now, combined the "like terms" ; as follows:
→ +5a + 7a + 4a + 4a ;
= (+5a + 7a) + 4a + 4a ;
= +12a + 4a + 4a ;
= (+12a + 4a) + 4a ;
= (+16a) + 4a ;
= +20a ;
→ − 7 + 2 + 3 ;
= − 5 + 3 ;
= − 2 ;
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And we have:
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→ +20a − 2 ;
→ which is: Answer choice: [B]: " " .
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Hope this helps!
Best wishes to you in your academic endeavors
— and within the "Brainly" community!
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Gradient =
This means the gradient is 4x.
The y intercept is where the line crosses the y axis. We can see this is at -3.
<h2>Rule: <u>y = 4x -3</u></h2>Substitute your values to check if it's right.
y = 4x -3
5 = 4(2) - 3
5 = 8 - 3
5 = 5
1 = 4(1) - 3
1 = 4 - 3
1 = 1