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2 years ago

An airplane can ascend at a rate of meters in of a second. How many meters can the airplane ascend in one second?

Mathematics

1 answer:

masha68 [24]2 years ago

7 0

How many meters? There's no number?

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a counterclockwise rotation of 120° followed by a counterclockwise rotation of 40° around the same center of rotation

lesya692 [45]

Answer:

Counterclockwise 160°? I don't know what is being asked, but that's the total.

6 0

3 years ago

Suppose you have a bag containing 2 black marbles and 3 red marbles. You reach into the bag, select a marble, see what color it

TiliK225 [7]

Answer:

$\dfrac{9}{25}$

Step-by-step explanation:

Given that the bag contains black and red marbles.

Number of black marbles in the bag = 2

Number of red marbles in the bag = 3

Total number of marbles in the bag = Number of black marbles + Number of red marbles = 2 + 3 = 5

Let us have a look at the formula for probability of an event E, which can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

$P(\text{First red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5 }$

Now, the marble chosen at first is replaced.

Therefore, the count remains the same.

$P(\text{Second red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5}$

Now, the <em>required probability</em> can be found as:

$P(\text{First red marble})\times P(\text{Second red marble}) = \dfrac{3}{5}\times \dfrac{3}{5} = \bold{\dfrac{9}{25} }$

3 0

3 years ago

Asa received scores of 72, 97, and 82 on her last three math tests. she needs a mean test score of 82 to qualify for the math te

lara [203]

First step is to find what should be the required total of sum of Score after fourth test, to identify how much more or less she need to score in his fourth test.

Since Mean = (Sum of Scores)/number of test

using above formula we determine what is the required sum of score.

82 = (Sum of Scores)/4

⇒ 82 × 4 = 328

So in four test she should have score total as 328

So Score require in fourth test = Required Score Total - (total score in 3 tests)

= 328 - ( 72 + 97 + 82 ) = 77

So she need score of 77 to be at mean of 82 after fourth test and get qualify for the team

6 0

3 years ago

Read 2 more answers

If a = mg - kv²/ m find , correct to the nearest whole number the value of V when a= 2.8 ,m= 12 ,g = 9.8 and k= 8/3

Harlamova29_29 [7]

Answer:

v = 22.59

Step-by-step explanation:

all you need is contained in this sheet

5 0

3 years ago

Read 2 more answers

Jerry has four jackets in his closet. Without looking, he reached into his closet, pulled out a jacket, and then put it back in

padilas [110]

Answer:

Step-by-step explanation:

4 0

2 years ago