What about it? 7x+5 equals what
Answer:
(1,4) or 1 < x < 4
Step-by-step explanation:
3 = less than 2x + 1 and 2x + 1 is less than 9
we can split the two parts of the equation
3< 2x + 1 and 2x + 1 < 9
for 3< 2x + 1 x has to be greater than 1
for 2x+ 1 < 9 x has to be less than 4 so the answer is (1,4) or 1 < x < 4
Since you know the triangles are congruent/equal, you know that:
m∠A and m∠X are congruent and have the same angle, and so does:
m∠B and m∠Y
m∠C and m∠Z
A triangle is 180°. (the 3 angles have to add up to 180) To find m∠B, you can do this:
m∠A + m∠B + m∠C = 180°
21° + m∠B + 35° = 180° Subtract 21 and 35 on both sides
m∠B = 124° your answer is C
Answer:
full page = 8
half page = 5
Step-by-step explanation:
two equations can be derived from the question
40x + 75y = 800 equation 1
x + y = 13 equation 2
x = number of half page advertisement
y = number of full page advertisement
multiply equation 2 by 40
40x + 40y = 520 equation 3
subtract equation 3 from 2
280 = 35y
y = 8
substitute for y in equation 2
x + 8 = 13
x = 13 - 8
x = 5
A)
6, 10, 14, 18
a = 6 = first term.
common difference, d = 10 - 6 = 4
nth term of an arithmetic sequence = a + (n - 1)*d = 6 + (n - 1)4
= 6 + 4*n - 4*1
= 4n - 4 + 6
= 4n + 2
nth term of the arithmetic sequence is 4n + 2
b)
different arithmetic = 3n + 5
If 108 is on the sequence, it would have a whole number solution for n.
3n + 5 = 108
3n = 108 - 5
3n = 103
n = 103/3 = 34 1/3
n is not a whole number, so 108 is not a term of the sequence.
Hope this helps.
