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4 years ago

Please help im so stupid

Mathematics

1 answer:

choli [55]4 years ago

7 0

The answer is 9 for this one

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WANT FREE 20 POINTS + BRAINLIEST? answer this geometry question correct and i got you

gulaghasi [49]

Answer:

the three options i chose:

A. n and k are on plane A and s

C. p is the inteersection of n and g

D. those 3 lines are noncollinear

3 0

3 years ago

Read 2 more answers

A local water park has two types of season passes. Plan A costs a one-time fee of $125 for admission plus $8 for parking every t

Margarita [4]

Answer:

40+8X=50+23X

8X-23X=50-140

-15X=-90

X=-90/-15

X=7 TRIPS IS THE ANSWER.

PROOF:

140+8*6=50+23*6

140+48=50+138

188=188

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3 years ago

A kite with a string 80 feet long makes an angle of elevation of 40° with the ground, assuming the string is straight, how high

defon

The diagram of the kite is shown below

To find the perpendicular height of the kite from the ground, we use the trigonometry ratio for sin(x).

The reason for using the sine ratio is because we have the hypotenuse, 80 feet, and the angle, 40° and we are looking for the length of the side opposite the angle.

$sin(x)= \frac{opp}{hyp}$
$sin(40)= \frac{x}{80}$
$80sin(40)=x$
$x=51.42$ rounded to two decimal place

Perpendicular height of the kite from the ground is 51.42 feet

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3 years ago

Solve the system

geniusboy [140]

The answer is A. You can get that in by plugging in and checking or by substitution. In order to use substitution here, you would plug in 3x + 3 into y in the first equation. You would then distribute the 2 and solve for x, which would give you 0. Then you could plug that into either equation to find that y = 3.

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3 years ago

State the conclusion based on the results of the test. The standard deviationstandard deviation inin the pressure required to op

inysia [295]

Answer:

B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed.

Step-by-step explanation:

We make this conclusion based on these reasons:

We are told that the "null hypothesis was rejected" after the "manager feels that the pressure variability has changed., meaning the null hypothesis was the opposite of what occurred; that is to say, it is the alternate hypothesis that proved true instead.
"changes in the manufacturing process" form what can be called "sufficient evidence" that the mean of the pressure required to open the valve has changed, thereby going against the null hypothesis.

It is based on the above reasons that the null hypothesis was rejected.

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3 years ago