Answer: 0.7225
Step-by-step explanation:
Since the probability that a person cannot read is 0.85. The probability that 2 people selected at random will be unable to read will be gotten by multiplying the value of the probability given twice. This will be
= P(not read) × P(not read)
= 0.85 × 0.85
= 0.7225
Therefore, the probability that 2 people selected at random will be unable to read is 0.7225
Answer:
b. ellipse
Step-by-step explanation:
The squared terms have the same sign and different coefficients. That means the equation describes an <em>ellipse</em>.
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<em>Additional comment</em>
<em>both variables are highest degree 2</em>:
coefficients have the same sign and magnitude: circle
coefficients have the same sign and different magnitude: ellipse
coefficients have different signs: hyperbola*
<em>only one variable has highest degree 2</em>:
parabola
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* If the equation can be factored to a product of linear terms that is zero, then the equation is of two intersecting lines. This is a degenerate case of the hyperbola in which the major axis is zero: the two vertices are the same point.
2x + 1 > 15
2x > 15 - 1
2x > 14
x > 14/2
x > 7 <=== simplified form
Answer:
0.52
Step-by-step explanation:
2/100=0.02, and 5/10=0.5. 0.5+0.02=0.52