Answer:
Step-by-step explanation:
1.)
10p² - 7 = 243
10p² = 250
p² = 25
p = ±5 (meaning p can both equal -5,5)
2.)
9b²+9 = 684
9b² = 675
b² = 75
b = ±√75
= ± 5√3
Answer:
b
Step-by-step explanation:
Answer:
T' (4,8)
S' (4,-4)
R' (-4,-4)
U' (-4,8)
Step-by-step explanation:
A dilation is an enlargement if the scale factor is greater than 1 and a reduction if it is less than 1. In this it is an enlargement so you multiply each coordinate by the scale factor which is 4. Since the coordinate for T is (1,2) you multiply 1x4 and 2x4 making the new coordinate (4,8). Since it is a new coordinate you add ' to the letter for the coordinate. Then you do that for the rest of the coordinates and graph it.
C + d = 2(c - d)
c = 9
9 + d = 2(9 - d)
9 + d = 18 - 2d
d + 2d = 18 - 9
3d = 9
d = 9/3
d = 3 <=== daira is 3 when carl is 9 years old and older then she
if carl is 9 years old and is younger then she ...I dont really understand this question....carl is 9 and daira is 3......possibly...their is a difference of 6 years in their ages....so if carl is 9 and younger then she, the daira is 6 years older ?? making her 9 + 6 = 15....not sure about this one ....the whole question throws me off
Answer:
B. 1 and -2
Explanation:
First, add up the equations:
x-x+3y+y=4
4y=4
y=1
Now, plug y into any of the original equations above and solve for x:
-x+1=3
-x=2
x=-2
Therefore, the answer is B. 1 and -2