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3 years ago

Solve the equation 9x+16=5 for y

Mathematics

1 answer:

dezoksy [38]3 years ago

5 0

Answer:

-11/9 or -1.2222222222

Step-by-step explanation:

9x+16= 5

-16 -16

9x= -11

9x ÷9 and -11÷9

x= -11/9 or -1.2222222222

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During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by

Alja [10]

Answer:

The numbers of measure of music played are 1 and 7

Step-by-step explanation:

Given

$s = 10|x - 4| + 50$

Required

Solve for x when s = 80

Substitute 80 for x

$80 = 10|x - 4| + 50$

Subtract 50 from both sides

$80 - 50= 10|x - 4| + 50 - 50$

$30= 10|x - 4|$

Divide through by 10

$\frac{30}{10}= \frac{10|x - 4| }{10}$

$3= |x - 4|$

Reorder

$|x - 4| = 3$

This can be split into

$x - 4 = 3$ or $x - 4 = -3$

Solve for x

$x = 4 + 3$ or $x = 4 - 3$

$x = 7$ or $x = 1$

Hence:

The numbers of measure of music played are 1 and 7

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3 years ago

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Tems11 [23]

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3 0

3 years ago

I need help!!! 15 points!!

Slav-nsk [51]

Answer:

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$\frac{5}{14}$

7 0

3 years ago

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Leni [432]

Answer:I believe it is (C) I’m not 100% sure but I think so

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Simplify the following: 6i^3 +4j^2 -6i Please show work

Vadim26 [7]

Answer:

Concept: Vectors

I think the confusion here might be the usage of i and j
Just to let you know, i=x and j=y
So let's use that fact to conceptualize this
6x^3+4y^2-6x
We can simplify by applying a common factor
2(x^3+2y^2-3x)
Thats the most we can simplify this

6 0

2 years ago