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Trava [24]
3 years ago
9

-7a-3<2a Please solve

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
6 0

Answer:

2A or II-A may refer to: Alberta Highway 2A · Alpha-2A adrenergic receptor · Keratin 2A · Massachusetts Route 2A · Stalag II-A · Telecom 2A, a satellite

Step-by-step explanation:

i think this is it or wht you talking about

rusak2 [61]3 years ago
4 0

Answer:

a>-1/3

Step-by-step explanation:

-7a-2a<3

-9a<3

-a<3/9

a>-3/9

a>-1/3

You switch the sign because your dividing by a negative.

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3 years ago
How do you find the hypotenuse of a triangle?
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X has a normal distribution with the given mean and standard deviation. Find the indicated probability. (Round your answer to fo
lapo4ka [179]

Answer:

0.6247

Step-by-step explanation:

The formula for calculating a Z-score is Z = (X - μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

From the question,

μ = 51, σ = 10. We are to find P(36 ≤ X ≤ 56)

Step 1

Find the Probability of X ≤ 36

μ = 51, σ = 10

Z = (X - μ)/σ

Z = 36 - 51/ 10

Z = -15/10

Z = -1.5

We find the Probability of Z = -1.5 from Z-Table

P(X <36) = P(X = 36) = P(Z = -1.5)

= 0.066807

Step 2

Find the Probability of X ≤ 56

μ = 51, σ = 10

Z = (X - μ)/σ

Z = 56 - 51/ 10

Z = 5/10

Z = 0.5

We find the Probability of Z = 0.5 from Z-Table:

P(X < 56) = P(X = 56) = P(Z = 0.5)= 0.69146

Step 3

Find P(36 ≤ X ≤ 56)

P(36 ≤ X ≤ 56) = P(X ≤ 56) - P(X ≤ 36)

= P( Z = 0.5) - P(Z = -1.5)

= 0.69146 - 0.066807

= 0.624653

Approximately to 4 decimal places , P(36 ≤ X ≤ 56) = 0.6247

7 0
3 years ago
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cos (a+b+c) = cos (a+(b+c))
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4 0
2 years ago
What is 79/100 as a decimal
dolphi86 [110]

Hey!

-------------------------------------

Solution:

Divide to get the decimal.

79 / 100 = 0.79

-------------------------------------

Answer:

0.79

-------------------------------------

Hope This Helped! Good Luck!

3 0
3 years ago
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