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3 years ago

Please help!!!!! will mark brainliest

Mathematics

2 answers:

Bezzdna [24]3 years ago

7 0

Answer:

It should be B- an=3n+1 because it seems to be adding one every time

Step-by-step explanation:

ad-work [718]3 years ago

5 0

Answer:

We will count number of squares

first term is 4

so,

second term is 7

so,

third term is 10

so,

We can see that this sequence is in arithematic sequence

we can use nth term formula

where

an is nth terms

a1 is first term

d is common difference

n is total number of terms

now, we can plug values

and we get

b 3n+1

Step-by-step explanation:

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The cycle time for trucks hauling concrete to a highway construction site is uniformly distributed over the interval 40 to 75 mi

jeka57 [31]

Answer:

0.8333 = 83.33% probability that the cycle time exceeds 50 minutes if it is known that the cycle time exceeds 45 minutes

Step-by-step explanation:

A distribution is called uniform if each outcome has the same probability of happening.

The uniform distributon has two bounds, a and b, and the probability of finding a value higher than x is given by:

$P(X > x) = \frac{b - x}{b - a}$

Uniformly distributed over the interval 40 to 75 minutes.

This means that $a = 40, b = 75$

It is known that the cycle time exceeds 45 minutes

This means that we can use $a = 45$

What is the probability that the cycle time exceeds 50 minutes?

$P(X > 50) = \frac{75 - 50}{75 - 45} = 0.8333$

0.8333 = 83.33% probability that the cycle time exceeds 50 minutes if it is known that the cycle time exceeds 45 minutes

8 0

3 years ago

Which expression is equal to zero? 9 + (– 27) ÷ (– 3)

GrogVix [38]

Answer:

-27÷(-3)-9

Step-by-step explanation:

Hope this helps you.

4 0

3 years ago

As the music plays,the volume changes In the beginning of the piece can be modeled by the equation s=10Ix-4I+50 where s represen

Ipatiy [6.2K]

Answer:

-127

Step-by-step explanation:

s = 101x-41+50

80 = 101x - 4+ 50

-101x

-181 = x - 4 +50

-181 = x -54

+ 54

-127 = x

I hope this helps

8 0

3 years ago

I neeed help , can somebody please tell the answer . ?

Dmitriy789 [7]

Answer:

x=39 degrees

Step-by-step explanation:

28+33+x=100

61+x=100

8 0

3 years ago

What is the value of the expression when a = -1.4 and b = -2.7? <br> |a| + b

Julli [10]

"a" is an absolute value, so that means that after whatever is in the brackets is solved as far as it can be, it becomes a positive value, no matter what it is. So, |-1.4| is equal to 1.4. The equation is 1.4+ (-2.7) or 1.4 - 2.7 which equals -1.3

5 0

3 years ago