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3 years ago

Simplify the expression 6(11+4−7h)

Mathematics

2 answers:

vodka [1.7K]3 years ago

6 0

The answer is 90-42h

OLga [1]3 years ago

3 0

Answer:

−42h+90

Explanation:

6(11+4−7h)

=(6)(11+4+−7h)

=(6)(11)+(6)(4)+(6)(−7h)

=66+24−42h

=−42h+90

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7/2,16/6 tell whether froms a proportion

lina2011 [118]

It can be formed as a proportion

4 0

4 years ago

Read 2 more answers

A market survey shows that half the owners of Sorey State Boogie Boards became disenchanted with the product and switched to C&a

OlgaM077 [116]

Answer:

$\left[\begin{array}{ccc}\dfrac{1}{2} &\dfrac{1}{2}\\\\\dfrac{1}{4}&\dfrac{3}{4}\end{array}\right]$

Step-by-step explanation:

Let 1 = Sorey State, and 2 = C&T

Half the owners of Sorey State Boogie Boards became disenchanted with the product and switched to C&T Super Professional Boards the next surf season.

This means half moved from State 1 to State 2.

Three quarters of the C&T Boogie Board users remained loyal to C&T, while the rest switched to Sorey State.

The rest $(1-\frac{3}{4}= \frac{1}{4})$ moved from State 2 to State 1.

The Markov Transition Matrix is presented below:

$\left\begin{array}{ccc}\\\\\\$Sorey State&1\\\\C\&T&2\end{array}\right\left[\begin{array}{ccc}$Sorey State&C\&T\\1&2\\------&------\\\dfrac{1}{2} &\dfrac{1}{2}\\\\\dfrac{1}{4}&\dfrac{3}{4}\end{array}\right]$

The above is presented for clarity sake. The transition matrix is:

$\left[\begin{array}{ccc}\dfrac{1}{2} &\dfrac{1}{2}\\\\\dfrac{1}{4}&\dfrac{3}{4}\end{array}\right]$

5 0

3 years ago

How do you solve:

Elina [12.6K]

Answer:

1.93

Step-by-step explanation: Just remove parentheses and add as followed

-1.80

3.73

now since it is a negative minus a positive the number is going to be greater then the negative. But, you dont have to do what is above you can do (-1.8)+3.73 and you will get your answer or just use the internet.

8 0

3 years ago

The same sample of 25 seniors from the urban school district with the mean and standard deviation N(450, 100). A 95% confidence

kvv77 [185]

The margin of error of a sample is given by:
B = z(α/2) σ/√n; where B is the margin of error = 25, z(α/2) is the level of significant = 1.96, σ is the standard deviation = 100 and n is the sample size.

25 = 1.96(100/√n)
100/√n = 25/1.96 = 12.76
√n = 100/12.76 = 7.84
n = (7.84)^2 = 61.47

Therefore, the smallest sample size required is 62 seniors.

3 0

4 years ago

Naomi starts the engine on her small private airplane. The engine drives a propeller with a radius of 8 feet and its centerline

icang [17]

Answer:

5.13 feet

Step-by-step explanation:

Engine is driving the propeller with a radius of 8 feet and its centerline 13 feet above the ground.

And the speed is 700 revolutions per minute, the height of one propeller tip as a function of time is given by:

$h=13+8 \sin(700t)$