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3 years ago

Philip wants to buy a new video game system that costs

Mathematics

1 answer:

Law Incorporation [45]3 years ago

4 0

Answer:

I think the answer I think the answer would be 14

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Tesla Battery Recharge Time.The electric vehicle manufacturing company Tesla estimates that a driver who commutes 50 miles per

madam [21]

Answer:

a.) f(x) = $\frac{1}{30}$ where 90 < x < 120

b.) $\frac{2}{3}$

c.) $\frac{2}{3}$

d.) $\frac{1}{2}$

Step-by-step explanation:

Let

X be a uniform random variable that denotes the actual charging time of battery.

Given that, the actual recharging time required is uniformly distributed between 90 and 120 minutes.

⇒X ≈ ∪ ( 90, 120 )

a.)

Probability density function , f (x) = $\frac{1}{120 - 90} = \frac{1}{30}$ where 90 < x < 120

b.)

P(x < 110) = $\int\limits^{110}_{90} {\frac{1}{30} } \, dx$

= $\frac{1}{30}[x]\limits^{110}_{90} = \frac{1}{30} [ 110 - 90 ] = \frac{1}{30} [ 20] = \frac{2}{3}$

c.)

P(x > 100 ) = $\int\limits^{120}_{100} {\frac{1}{30} } \, dx$

= $\frac{1}{30}[x]\limits^{120}_{100} = \frac{1}{30} [ 120 - 100 ] = \frac{1}{30} [ 20] = \frac{2}{3}$

d.)

P(95 < x< 110) = $\int\limits^{110}_{95} {\frac{1}{30} } \, dx$

= $\frac{1}{30}[x]\limits^{110}_{95} = \frac{1}{30} [ 110 - 95 ] = \frac{1}{30} [ 15] = \frac{1}{2}$

7 0

3 years ago

Yolanda's club has 35 members.It rules requires that 60% of them must be present to vote.At least how many members must be prese

Neko [114]

Answer:21 members

Step-by-step explanation:

35 *60% =35 *(60/100)

=21

7 0

4 years ago

What is the half of 14.5

Aleks04 [339]

Answer:

7.25

Explanation:

14.5×½=7.25

3 0

3 years ago

Read 2 more answers

A density graph for all the possible speeds between 0 mph and 320 mph is in the shape of a triangle. What is the height of the t

Inessa [10]

Answer:

its C

Step-by-step explanation:

6 0

3 years ago

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6) Which type of transformation creates an image where the area of the shape changes? A) translations B) rotations C) reflection

Simora [160]

The transformation that changes the area of a shape is dilation (Option D)

Step by step explanation

Option A: Translation

A translation is a geometric transformation that moves every point of a figure, shape, or space by the same distance in a given direction. For this type, the image is congruent with the original shape.

Option B: Rotation

A rotation is a type of transformation that takes each point in a figure and rotates it a certain number of degrees around a given point. For this type, the image is congruent with the original shape.

Option C: Reflection

A reflection is a transformation where each point in a shape appears at an equal distance on the opposite side of a given line - the line of reflection. For this type, the image is congruent with the original shape.

Option D: Dilations

Dilation in math is a transformation that changes the size of a figure so it becomes larger or smaller without changing shape. This type changes the area since the area is the size of a figure.

6 0

1 year ago