3 years ago

Which instruments belong to the brass family?

Mathematics

2 answers:

Radda [10]3 years ago

8 0

Answer:

Baritone/Euphonium

Trumpet

Tuba

Trombone

Good luck!!

Harrizon [31]3 years ago

6 0

Trumpet, trombone, tuba,

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Together Abel and Bob have 49 video games. Abel has 11 more video games than Bob. How many games does each person have.

DiKsa [7]

Answer:

Abel has 30

Bob has 19

Step-by-step explanation:

Abel = a

Bob = b

a + b = 49

a = b + 11

Substitute:

2b + 11 = 49

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denis23 [38]

Answer:

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Step-by-step explanation:

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6y + 10 = 50

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Divide both sides by 6.

y = 40/6

Reduce the fraction by dividing the numerator and denominator by 2.

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3 years ago

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Answer:

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Step-by-step explanation:

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If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a num

malfutka [58]

Answer:

The standard deviation will be: 2.1

Step-by-step explanation:

We know that standard deviation is basically the square root of variance.

Using the formula to calculate the standard deviation

$s=\sqrt{s^2}$

The variance = s² = 4.4

so the standard deviation can be calculated as:

standard deviation $=\sqrt{s^2}$

$=\sqrt{\left(4.4\right)^}$

$=2.1$

Therefore, the standard deviation will be: 2.1

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