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shtirl [24]
3 years ago
6

Which lists the even numbers between 1 and 19 in set notation? A.{2, 4, 6, 8, 10, 14, 16, 18} B.{0, 2, 4, 6, 8, 10, 12, 14, 16,

18} C.{1, 3, 5, 7, 9, 11, 13, 15, 17, 19} D.{2, 4, 6, 8, 10, 12, 14, 16, 18}
Mathematics
1 answer:
harkovskaia [24]3 years ago
6 0
D.
This is the only list that contains all even numbers that lie between the number 1 and the number 19. 
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Can someone help please and thank you.
natita [175]

5)

Equilateral triangle, all sides are equal

So 2x + 5 = 11

2x = 6

x = 3

Answer is the first one

3; Equilateral theorem


6)

Isosceles triangle has at least two congruent sides.

So 6x = 24

x = 4

Answer x = 4

Converse of the Base Angle Theorem


7)

5x + 7 = 52

5x = 45

 x = 9

Answer

x = 9

Base angle theorem


8)

5y - 14 = 3y

2y = 14

 y = 7

Answer

7; Equiangular theorem


4 0
3 years ago
Write two mixed numbers that are equal to 7.5
joja [24]
Seven and one half or seven and eight sixteenths
7 0
3 years ago
Read 2 more answers
!! AP CALCULUS AB !!<br> find the limit of [(secx*sinx) + (cscx*cosx)]/(3secx) as x approaches 3pi/2
uysha [10]

f(x)= \frac{\frac{\sin{x}}{\cos{x}}+\frac{\cos{x}}{\sin{x}}}{3\sec{x}}

\frac{\frac{\sin{x}}{\cos{x}}+\frac{\cos{x}}{\sin{x}}}{3\sec{x}} \implies \\ \frac{\sin^2{x}+\cos^2{x}}{\sin{x}\cos{x}}\frac{\cos{x}}{3}\implies \\\frac{1}{\sin{x}\cos{x}}*\frac{\cos{x}}{3}\implies \\ \frac{1}{3\sin{x}}

So,

\lim_{x \rightarrow \frac{3\pi}{2}}{f(x)=f(\frac{3\pi}{2})=\frac{1}{3\sin{\frac{3\pi}{2}}}=-\frac{1}{3}

6 0
3 years ago
Your teacher writes the fact below on the board.Using only mental math, will the answer be less than or greater than 5? How do y
Levart [38]

Answer:

Less than 5

Step-by-step explanation:

The eason behind the answer being less than 5 is because if you multiply something by a fraction that is less than a whole number, then you will get less than the original number you multiplied the fraction with.

Hope this helps :)

4 0
2 years ago
How do you do number 10?
alexandr402 [8]
(3x +4) + (6x + 5) = 90*
*note that complementary = 90, supplementary = 180
9x + 9 = 90

9x = 90 - 9

9x/9 = 81/9

x = 9

hope this helps

7 0
3 years ago
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