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Lynna [10]
3 years ago
8

Question 9

Mathematics
1 answer:
fiasKO [112]3 years ago
4 0

Answer:

3.85 (rounded to 4 cars)

Step-by-step explanation:

Let X be the discrete random variable the number of vehicles changing lanes

X~B(7, 0.55)

The expected value is found by:

E(X) = 7 × 0.55

E(X) = 3.85

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Which transformation was applied to figure A to form figure B
Serga [27]

Answer:

The correct answer is A.


Hope this helped!



3 0
3 years ago
Philip buys a pack of markers for $1.29, a pencil for $0.84, and an eraser for $0.79. How much does he spend altogether
Tom [10]

Answer:

Not sure what you are looking for but... I believe the answer is $2.92

Step-by-step explanation:

7 0
3 years ago
A plane can fly 550 miles in the same time as it takes a car to go 150 miles. If the car travels 80 mph slower than the plane, f
MrMuchimi
<span>The easiest way is probably noticing that the plane flies 180 miles farther than the car in the same time. And...the car goes 90 mph slower. If you imagine that they started at the same point...that means that the two trips went on for two hours (2 hours x 90 mph faster = 180 miles farther). </span>
5 0
3 years ago
PLEASE HELP I GIVE BRAINLIEST
bearhunter [10]
Slope-intercept form is:

\sf y=mx+b

Where 'm' is the slope and 'b' is the y-intercept.

Only the first equation is in slope-intercept form, so that crosses out the first and last options. It also crosses out the second option since the first equation is already in slope-intercept form.

For the third option, let's convert the second equation into slope-intercept and see for ourselves:

\sf 3y+x=-3

Subtract 'x' to both sides:

\sf 3y=-x-3

Divide 3 to both sides:

\sf y=-\dfrac{1}{3}x-1

So option C is correct.
8 0
4 years ago
Read 2 more answers
A map is drawn using a scale of 2 cm : 75 miles. Two cities are 325 miles
NeX [460]

Answer:

The answer is 8.67

Step-by-step explanation:

Divide the distance by 75 since it's the actual distance of the scale factor

325/75=4.33

Multiply the answer by the scale factor

4.33×2=8.67

4 0
3 years ago
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