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eimsori [14]
3 years ago
12

Which is a equivalent to (9y^2-4x)

Mathematics
1 answer:
damaskus [11]3 years ago
5 0
I believe the answer is 81x^4-16x^2 difference of squares
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Which of the following shapes are used to compose this figure?
kogti [31]
Trapezoid +++ answer
8 0
3 years ago
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Evaluate the expression (1/5) to the 3rd power
slamgirl [31]

Answer:

1/125

Step-by-step explanation:

(1/5) ^3

1/5 *1/5 *1/5

1/125

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3 years ago
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Corey can read 45 pages in 15 mins. At this rate, how many pages can he read in 2 hours?
a_sh-v [17]
15 minutes is 1/4 of an hour
How many 15 minutes are in 2 hours?
There are 8 so:
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7 0
3 years ago
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O the photo slash picture
Evgesh-ka [11]

Answer:

The shortest walking route is through the diagonal AC: 102.89m

Step-by-step explanation:

One can go from A to C using 2 paths:

- ADC or ABC

- using diagonal AC and half of that inner circle.

We need to compute the length of each path.

1) ADC=AD+DC=80+50=130m

2) AC²=AD²+DC²=80²+50⁵=6400+2500= 8900m²

AC=sqrt(8900)=94.34m.

Note that the diagonal AC has a missing segment, whose length is the diameter of the inner circle. So the straight line has a length of: AC-d=94.34-15=79.34m.

Perimeter of half the circle=pi×r= 3.14×(15/2)= 3.14×7.5=23.55m

So, if one is using the diagonal to go from A to C, then he has to walk:

79.34+23.55=102.89m

Comparing the two routes: 130m vs 102.89m, we notice that the route using the diagonal AC is shorter.

8 0
3 years ago
Solve 7 + x - 15 = -2.<br><br> 5<br> 6<br> 10<br> 20
sergiy2304 [10]

Answer:

x = 6

Step-by-step explanation:

7 + x - 15 = -2

⇒ x-15 +7 = -2

⇒ x -8 = -2

add 8 on both sides

⇒ x= -2 +8

∴x = 6

7 0
3 years ago
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