All categories

3 years ago

Can anyone slove this question pls

Mathematics

1 answer:

skad [1K]3 years ago

4 0

we have: -10/4 = -2.5 ⇒ -2 > -2.5 > -3

ANSWER : -2 and -3

ok done. Thank to me :>

You might be interested in

Jack is learning to play the piano which has 88 keys if there are 12 unique keys in each octave. how amny complete octaves are o

Alenkinab [10]

88/8 =11

Unique key in 1 octave = 12

so, in 11 octave, 12*11 = 132

3 0

3 years ago

Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$

$P(2>Z)=.97725$

We will use formula $P(a$ to find the probability to find that a normal variable lies between two values.

Upon substituting our given values in above formula we will get,

$P(-1$

Upon converting 0.81859 to percentage we will get

$0.81859*100=81.859\approx 81.86$

Therefore, 81.86% of final exam score will be between 68 and 86.

3 0

3 years ago

The mechanic charges $90 for a vehicle inspection plus an additional $35 per hour. If the mechanic works for 8 hours, what will

kvasek [131]

Answer:

$370

Step-by-step explanation:

You already have 90 dollars so we can put that to the side for right now

If you're charged $35 at an hourly rate for 8 hours then you have to multiply the two together

30 x 8 = 240

5 x 8=40

240 + 40=280

Now is when your $90 dollars comes in. Now just add the two together and you'll end up with your final answer

280+90=370

6 0

3 years ago

Jasmine compared the two graphs below. Graph A Daily High Temperatures and Bottled Water Sales Graph A has temperature (degrees

Alexandra [31]

Answer:

i think it is a

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

In a swimming competition, Grace jumped from the height of 22 meters. The following table represents the height f (t), in meters

exis [7]

For this case we have the following variables:

t: time in seconds.

f (t): height as a function of time.

By the time Grace reaches the pool, the height is equal to zero.

We have the following table:

Time (t) (in seconds) Height f(t) (in meters)

1 25

2 20

3 15

4 0

We observe that the height is equal to zero after 4 seconds.

Equivalently:

$f (4) = 0$

Answer:

the following represents the x-intercept of f(t):

Grace reaches the swimming pool after 4 seconds

8 0

3 years ago

Can anyone slove this question pls ​

Can anyone slove this question pls