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qwelly [4]
3 years ago
15

Select the better deal in the pair. Then give the unit rate for the better deal.

Mathematics
2 answers:
nydimaria [60]3 years ago
8 0
2 one do you need explanation ??
adell [148]3 years ago
8 0
The second one i could explain it if you like ^_^
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If a 6-foot man casts an 8-foot shadow, how tall is a tree that casts a 24-foot shadow?
noname [10]
26 , 8-6=2 so you do 24+6
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3 years ago
PQ is the perpendicular
Elza [17]
If it is circle and the circle have the center at point O then the OP=1/2of length AB.
6 0
3 years ago
Read 2 more answers
Rebecca draws two triangles on this coordinate plane.
anzhelika [568]

Answer:

The answer is below

Step-by-step explanation:

From the image attached, the coordinates of triangle ABC are at A(-5, 4), B(-5,7) and C(-2, 7)

a) If a point O(x,y) is rotated 90° clockwise, the new coordinate is O'(y, -x)

If triangle ABC is rotated 90° clockwise, its new coordinate is at:

A'(4, 5), B'(7, 5) and C'(7, 2)

The coordinate of A"B"C" is A"(2,5), B"(5,5), C(5,2)

Hence the transformation used to map A'(4, 5), B'(7, 5) and C'(7, 2) to A"(2,5), B"(5,5), C(5,2) is (x - 2, y + 0). Hence comparing with (x + h, y + k) gives:

h = -2, k = 0

b) If a point O(x,y) is reflected across the y = -x line, the new coordinate is O'(-y, -x)

If triangle ABC is reflected across y = -x, its new coordinate is at:

A'(-4, 5), B'(-7, 5) and C'(-7, 2)

The coordinate of A"B"C" is A"(2,5), B"(5,5), C(5,2)

8 0
3 years ago
HELP PLEASE!
Doss [256]
D.
first, eliminate B and C, because the highest degree in these two equation is 3, a 3-degree equation has 3 roots, not 4. 

between A and D, A has the roots 0, 0, 7, and -7, all real roots.

D can be factored into (x²-49)(x²+1)=0
x²=49 or x²=-1
x=7 or -7, x=i or -i    two real roots, two unreal roots 

for the second equation: 
first, find the first term by using the formula:
the nth term=the first term + (n-1)*difference
you are given the 13th term and d=3.7
a13=a1+(13-1)d
1.9=a1+12*3.7
a1=-42.5

the sum of the first 13 terms is S=(a1+a13)*(13/2)=(-42.5+1.9)*6.5=-263.9
3 0
3 years ago
How do you use the halving and doubling strategy to find 28*50?
Pavel [41]
The double of 50 is 100 which means you would do 28*100=2800 now half of the answer is 2800/2=1400 which makes 1,400 your answer 
3 0
3 years ago
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