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2 years ago

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Mathematics

1 answer:

Ganezh [65]2 years ago

6 0

Answer:

168 meters squared

Step-by-step explanation:

So we know that Jake walked from b to c and d meaning he didn't go from a to b, but we also know that scarlet walked a to b so to find the length we can subtract scarlet's walk by jake's walk or 38-31 which is 7.

So we know the length of one side is 7 so this means we have side a to b and c to d, but we still need to know b to c. So what we can do is get the length of a b c and d and isolate it so that we only have b to c. To do this we get the length of 7 and double it which is 14 and take it away from the 38m

38-14=24

so now we know that the side is 24 and we can solve for the area

24*7=168

so the answer is 168 meters squared

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The amount of time it takes an ice cube to melt varies inversely to the air temperature. At 30 degrees Celsius, the ice will mel

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Answer:

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2 years ago

Marisa had 89 maps to give visitors at the state park on Saturday. At the end of the day, she had 12 maps left. Which equation c

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3 years ago

Before dividing, decompose 420 to make it easier to divide by 4.

den301095 [7]

Answer:

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Step-by-step explanation:

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2 years ago

Given that cosec A= -2, sec B= -2, A and B lie in the same quadrant. Find sin (2A+2B)

sergij07 [2.7K]

Answer:

sin (2A+2B) = 0

Step-by-step explanation:

Given that,

cosec A= -2 and sec B= -2, A and B lie in the same quadrant.

We need to find the value of sin (2A+2B).

$A=cosec^{-1}(-2)\\\\=-30$

And

$B=\sec^{-1}(-2)\\\\=120^{\circ}$

To find the value of sin (2A+2B) as follows :

sin [2(-30)+2(120)] = sin (-60+240)

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7 0

2 years ago

Can someone help me please

gregori [183]

Answer:

y = -16

x = 2

Step-by-step explanation:

-×2/ -x - 5y = 78 ➡ 2x + 10y = -156 (whole equation multiplied with -2)

then add up two equations

2x + 10y = -156

-2x + 2y = -38 (2x will be eliminated)

12y = -192

y = -16

now you can find x using the value of y

2x + 10y = -156 ➡ 2x -160 = -156 ➡ 2x = -156 + 160 ➡ 2x = 4

6 0

3 years ago