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2 years ago

What is the value of the sum?

Mathematics

2 answers:

lbvjy [14]2 years ago

8 0

Hope this helps if it’s too hard to read comment below :)

Anna35 [415]2 years ago

4 0

Answer:

-1/16

Step-by-step explanation:

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Help please! Will give brainliest

motikmotik

Option c is correct. Use special right triangles and you will findout why. Hint:Use the 45-45-90 special right triangle's properties.

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3 years ago

Read 2 more answers

Solve the following quadratic equations by completing the square. y^2-14y+48=0

NISA [10]

Answer:

y = 6 or 8

Step-by-step explanation:

1. Subtract the constant:

y^2 -14y = -48

2. Add the square of half the y-coefficient:

y^2 -14y +49 = -48 +49

Write as a square, if you like:

(y -7)^2 = 1

3. Take the square root:

y -7 = ±√1 = ±1

4. Add the opposite of the constant on the left:

y = 7 ±1 = 6 or 8

The solution is y = 6 or y = 8.

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3 years ago

A light bulb in Keisha's house uses a total of 4.86 watts of electric power. If the light bulb uses 5.4 watts each minute it is

Hoochie [10]

Answer:

I think it is 0.9 minutes (I could be wrong though.)

Step-by-step explanation:

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2 years ago

Kermit's favorite iced tea is made with 151515 tea bags in every 222 liters of water. Peggy made a 121212-liter batch of iced te

muminat

Answer:

The answer is (Choice C) It is just right.

Step-by-step explanation:

The question is incomplete, so the complete question is below:

Kermit's favorite iced tea is made with 15 tea bags in every 2 liters of water. Peggy made a 12-liter batch of iced tea with 90 tea bags. What will Kermit think of Peggy's iced tea? Choose 1 answer: (Choice A) It is too strong. (Choice B) It is too weak. (Choice C) It is just right.

Now, to find which of the choice is correct.

So, we find first the unit rate of Peggy's iced tea bags per liter:

If, Peggy made a 12-liter batch of iced tea with 90 tea bags.

Then, Peggy would made a 1-liter batch of iced tea with = $\frac{90}{12} =7.5\ tea\ bags.$

Now, to get the unit rate of Kermit's iced tea bags per liter:

If, Kermit made a 2 liter of iced tea with 15 tea bags.

Then, Kermit would made a 2 liter of iced tea with = $\frac{15}{2} =7.5\ tea\ bags.$

Thus, the quantity of tea bags per liter is same of both Kermit and Peggy.

Hence, Kermit will think of Peggy's iced tea that it is just right.

Therefore, the answer is (Choice C) It is just right.

6 0

2 years ago

A parachutist's speed during a free fall reaches 198 feet per second. What is this speed in meters per second? At this speed, ho

Archy [21]

First covert the feet to meters.

1 meter = 3.3 feet.

Divide the total number of feet by 3.3 to get total number of meters:

198 / 3.3 = 60 meters per second.

Multiply meters per second by 15 seconds:

60 x 15 = 900 meters in 15 seconds.

5 0

2 years ago