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dalvyx [7]
3 years ago
10

Which pair of lines appears to be perpendicular? ОА. +XI B

Mathematics
1 answer:
Rasek [7]3 years ago
8 0
It’s the last one because yeah
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What is 3 2/7 x 2 4/5 (Answer with a mixed number in simplest form) Thankyou!!
SCORPION-xisa [38]

Answer:

9 1/5

Step-by-step explanation:

3 2/7 * 2 4/5

Change to improper fractions

( 7*3+2)/7  * ( 5*2+4)/5

23/7 * 14/5

Rewriting

14/7 * 23/5

2 * 23/5

46/5

Changing back to a mixed number

5 goes into 45 9 times with 1 left over

9 1/5

7 0
3 years ago
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If $5000 is invested at 7.8% interest compounded monthly, how much would you have after 54 months?
Nuetrik [128]

5000 x (1+0.078/12)^54

5000 x (1.0065)^54

$7094.37

6 0
3 years ago
3x+y=115x-y=21 Directions: Solve each system of equations by elimination. Clearly identify your solution.
olchik [2.2K]

To solve, we will follow the steps below:

3x+y=11 --------------------------(1)



5x-y=21 ------------------------------(2)

since y have the same coefficient, we can eliminate it directly by adding equation (1) and (2)

adding equation (1) and (2) will result;

8x =32

divide both-side of the equation by 8

x = 4

We move on to eliminate x and then solve for y

To eliminate x, we have to make sure the coefficient of the two equations are the same.

We can achieve this by multiplying through equation (1) by 5 and equation (2) by 3

The result will be;

15x + 5y = 55 ----------------------------(3)

15x - 3y =63 --------------------------------(4)

subtract equation (4) from equation(3)

8y = -8

divide both-side of the equation by 8

y = -1

8 0
1 year ago
Solve the equation and determine the value of t. t + 38 = 420
Valentin [98]

Answer:

t=382

Step-by-step explanation:

6 0
2 years ago
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A new shoe comes in two colors,black or red,and in sizes 5 to 12,including half sizes.If a pair of the shoes is chosen at random
Dima020 [189]
Less then 50% thats foshow
5 0
2 years ago
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