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Viktor [21]
3 years ago
15

Find the difference of -3/5 - (-5/9) 20 points y'all thanks -Throckmorton

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0
The work to your question

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For males in a certain town, the systolic blood pressure is normally distributed with a mean of 125 and a standard deviation of
makkiz [27]

95% have a systolic blood pressure between 109 and 141

Empirical rule states that for a normal distribution, 68% are within one standard deviation from the mean, 95% are within two standard deviation from the mean and 99.7% are within three standard deviation from the mean.

Given that mean (μ) = 125, standard deviation (σ) = 8.

68% are within one standard deviation = μ ± σ = 125 ± 8 = (117, 133)

95% are within two standard deviation = μ ± 2σ = 125 ± 2*8 = (109, 141)

95% have a systolic blood pressure between 109 and 141

Find out more on empirical rule at: brainly.com/question/10093236

5 0
2 years ago
PLEASE HELP! I WILL MARK YOU AS BRAINLEIST!
valkas [14]

Answer:

24

Step-by-step explanation:

per abcf=20

2×(6+bc)=20

bc=4

A=(base +base /2)×h=

(5+3/2)×6=24

8 0
3 years ago
Read 2 more answers
Logan collect pledges for the charity walkathon. He will receive total contributions of $60 plus $20 for every mile that he walk
Afina-wow [57]
So 60 + 20 is 80, and that is $80 a mile. 80 x 3 = 240, + 80 = 320. and then we could say 2/6 of 80 is about 28, right? so i suppose 4 2/6? sorry if it's wrong, just trying to help to the best of my ability
4 0
3 years ago
Leo learns to perform 2 vocal pieces during each week of lessons. After 16 weeks of voice lessons, how many pieces will Leo be a
alisha [4.7K]

Step-by-step explanation:

I. A Child’s Voice

One common mistake that adults make when singing with children is that they tend to “pitch” the songs, (or sing them in a key), that is comfortable for themselves, but unfortunately, out of a comfortable singing range for the children. Adults sing in much lower range than children, therefore pitching a song too low causes children to be unsuccessful at reaching some of the lower notes.

Pitching a song in the wrong range can have significant negative consequences on a child’s musical self-esteem. An incorrect key can take away the child’s ability to sing the song well or sing the song at all. Singing in a key that is out of a child’s range would be analogous to an art teacher giving a creative assignment to students and then placing all of the art materials up on a shelf out of reach for most of them. While a few might be tall enough, most won’t be. After a while, they will give up trying to reach the material altogether. Similarly, these are the students who start to believe that they can’t sing at all, and give up on music.

Good Singing

Although we are used to hearing and singing pop music, a child’s voice is not yet ready to sing songs either with such a wide vocal range or with the sophisticated vocal stylings or timbre that he or she might try to imitate from pop singers. As children’s voices are very light, they should not be pushed out of their vocal ranges too soon. Using a clear, clean, straight head voice rather than chest voice will help to avoid this, and will strengthen a child’s vocal musculature for a lifetime of excellent singing.

One good habit to help children sing well is to ask them sing in their head voice rather than their chest voice. Although most songs children hear are pop songs that are placed in the chest, a child’s voice is not yet developed, and should not be belting out or pushing from the lower range or chest voice. Head voice requires placing the sound higher up in the “vocal mask” or the face, as if singing from the eyes. Chest voice feels like the sound is emanating from the chest, which tends to create a lot of tension in the throat, particularly in younger singers. The head voice is lighter, more tension-free, and more natural and therefore more beautiful sounding.

Children’s Vocal Ranges

Below are the general ranges of a child’s voice.

7 0
3 years ago
757 divided by 68, the reamander, what is it?
egoroff_w [7]
68 can go into 757 11 times, the remainder would be 9

757÷68= 11 r 9 or 11 9/68
5 0
4 years ago
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