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Alla [95]
4 years ago
13

HELP!! I WILL MARK YOU BRANLIEST IF YOU RESPOND THE FASTEST AND IF ITS CORRECT :)

Mathematics
1 answer:
Levart [38]4 years ago
5 0

Answer:

128

Step-by-step explanation:

8x +78 =2x+114

Then

6x =36

Then

x = 6

=> B = 2*6+114 =126

:)

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Over a 6 week period, the price of a gallon of gas increased by 18 cents.
Fiesta28 [93]
18 divided by 6 is 3. So 3 cents/week. Hope this helps!
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3 years ago
Classify the polynomial.<br><br> 3r^5-2r^2+5r
ella [17]
Answer: 5th degree trinomial

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7 0
3 years ago
the angle of elevation from the bottom of a scenic gondola ride to the top of a mountain is 31 degrees. if the vertical distance
Eduardwww [97]

Answer:

The ride lasts 10 minutes.

Step-by-step explanation:

The triangle that is formed is attached.

In order to find out how long the ride lasts, we need to figure out the horizontal distance d.

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tan(31^o)=\frac{902}{d}.

Therefore

d=\frac{902\:feet}{tan(31^o)}=1501\:feet.

Now the amount of time t the gondola ride lasts is equal to the distance d divided by the speed of the gondola:

t=\frac{1501ft}{155ft/sec} =\boxed{9.69\:minutes.}

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7 0
4 years ago
Researchers want to survey the mass of American alligators in a certain region. They want to maximize the efficiency of this eff
nikdorinn [45]

Answer:

Option B is correct.

An appropriate statistical test that can be used to evaluate the usefulness of this method is; Linear regression with t-test for significance of slope.

Step-by-step explanation:

For this research, they want to measure the lengths of alligators and use the already obtained data relating the lengths of captured and released alligators to their masses, to obtain the masses of alligators whose lengths have been measured.

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So, an appropriate method to relate the two variables is to use regression analysis on the already obtained data, to obtain the linear relationship between mass of the alligators and their lengths. So that, just by putting on the measured lengths of the alligators surveyed into this expression, their corresponding masses would be immediately obtained.

But the correctness of this expression obtained will be checked by using t-test for the significance of the slope obtained in the linear regression.

So, the appropriate statistical test that can be used to evaluate the usefulness of this method is: Linear regression with t-test for significance of slope.

Hope this Helps!!!

4 0
4 years ago
A plane loses altitude at the rate of 5 m/s it begins with an altitude of 85,000 m write a linear function that represents the s
photoshop1234 [79]
Y=5/60=85000. that should be it ithink
7 0
3 years ago
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