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Nastasia [14]
3 years ago
6

11. C and d are complementary angles. C= (3x + 8)° and D= (2x – 8)°. Find the value of x.

Mathematics
1 answer:
salantis [7]3 years ago
7 0
Complementary = 90 degrees

90 = (3x+8) + (2x-8)

solve for x and get 18
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According to the synthetic division below, which of the following statements are true? Check all that apply
slamgirl [31]

Answer:

Step-by-step explanation:

Looking at our particular problem...let's identify everything that's going on here. What's inside the box are the coefficients from the original polynomial, with the last number being the constant. If we have 3 numbers there, which we do, then the first number is a coefficient on x², the second number is the coefficient on x, and the third number is the constant. So from that we know that our original polynomial was a 2nd degree, namely:

3x² + 7x - 20

The number outside the box is the number we are dividing into this original polynomial. This is a number in solution form. That means that x = -4. If

x = -4 is a solution, then the factor is (x + 4) = 0.

The numbers in the very bottom row are the coefficients of what is called the depressed polynomial, and this depressed polynomial is one degree less than the degree with which we started. So this depressed polynomial is a linear one (first degree, which is a line). The very last number in this bottom row is the remainder. If the remainder is 0, then -4 is a solution of the polynomial, it is also a 0, and (x + 4) is a factor of the polynomial. Our remainder is a 0.

So putting that all together gives us the answers as A, C, and E are our choices.

8 0
3 years ago
X times 11=1 <br><br> what is X<br> pls help
Slav-nsk [51]
11x=1
x= 1/11 (divide 11 on both side)
3 0
4 years ago
On the box and whisker plot below, what data calculations do the points B and D represent?
daser333 [38]

Answer:

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Step-by-step explanation:

The box starts at lower quartile, ends at upper quartile

5 0
4 years ago
I need to do b and d
cupoosta [38]
I only know the answer for b I don't know the answer for d. So here is the answer for b 9 time 9= to 18+11+8x4-1=60
5 0
3 years ago
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Alexxandr [17]

Step-by-step explanation:

When an ordered pair refers to the location of a point in the coordinate plane, they are called the coordinates of the point. The order is important because a point named by the ordered pair ( 5, 3 ) is not at the same location as the point named by the ordered pair ( 3, 5 ).

8 0
3 years ago
Read 2 more answers
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