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N76 [4]
2 years ago
14

Help me please i dont get it.

Mathematics
2 answers:
Trava [24]2 years ago
7 0

Answer:

x > -1/3

Step-by-step explanation:

so first we are going to distribute the numbers outside of the parenthesis. which gives us the equation

18-9x-8+12x > 9

then we are going to add our like terms

so 12x + -9x gives us 3x

and 18 + -8 gives us 10

so it would gives us the equation 3x+10>9

we then subtract 10 from both sides to keep our numbers on the right which gives us

3x > -1

then we divide by 3 on both sides to get X

and we then get X > -1/3

Andre45 [30]2 years ago
3 0

Answer:

x >  -  \frac{1}{3}

Step-by-step explanation:

9(2 - x) - 4(2 - 3x) > 9

18 - 9x - 8 + 12x > 9

10 + 3x > 9

3x > 9 - 10

3x >  - 1

\boxed{\green{x >  -  \frac{1}{3}}}

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The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria.
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Answer:

C . Sample : 6 boy and 7 girls

Step-by-step explanation:

Data :

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  Girls = 175

So ratio between boys and girls

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2 years ago
⦁ A sphere is inscribed in a cube with a volume of 27 cm3. What is the volume of the sphere?
lyudmila [28]

Answer:

≈ 14.14 cm³

Step-by-step explanation:

First find the side length of the cube.

V=S³

27=S³

∛27=∛s³

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Then the volume of the sphere.

V=\frac{4}{3} × π(pi) × r³(radius cubed)

V=\frac{4}{3} × π(pi) × (1.5³)

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4 0
3 years ago
Which equation could have been used to create this graph?
pishuonlain [190]
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Interest centers around the life of an electronic component. Let A be the event that the component fails a particular test and B
nekit [7.7K]

Answer: a. 0.61

b. 0.37

c. 0.63

Step-by-step explanation:

From the question,

P(A) = 0.39 and P(B) = 0.24

P(success) + P( failure) = 1

A) What is the probability that the component does not fail the​ test?

Since A is the event that the component fails a particular test, the probability that the component does not fail the​ test will be P(success). This will be:

= 1 - P(A)

= 1 - 0.39

= 0.61

B) What is the probability that a component works perfectly well (i.e., neither displays strain nor fails the test)?

This will be the probability that the component does not fail the​ test minus the event that the component displays strain but does not actually fail. This will be:

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= 0.37

C) What is the probability that the component either fails or shows strain in the test?

This will simply be:

= 1 - P(probability that a component works perfectly well)

= 1 - 0.37

= 0.63

3 0
3 years ago
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