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EleoNora [17]
3 years ago
5

A science class conducts an experiment using a falling object. The class determines that a quadratic regression equation y = –15

.9x2 + 99.2 will model the height, in feet, of the object after x seconds. Based on this model, what is the approximate height of the object after 1.5 seconds?
Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Answer:

67.4 + 1.5 = 68.9

Step-by-step explanation:

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How many positives and negatives are in 10 + (-5)
Maru [420]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
4 1/3 b+b=6b–10.4 efvnabvkjaebv
scZoUnD [109]

Answer:  The value of b= 15.6

Step-by-step explanation:

The given equation:  4\dfrac{1}{3}b+b=6b-10.4

To find : Value of b.

Since, we can write 4\dfrac{1}{3}=\dfrac{13}{3}

So, the given equation becomes \dfrac{13}{3}b+b=6b-10.4

\Rightarrow\dfrac{13b+3b}{3}=6b-10.4\Rightarrow\dfrac{16b}{3}=6b-10.4

Subtract 6b from both sides , we get

\Rightarrow\dfrac{16b}{3}=6b-10.4\\\\\Rightarrow\dfrac{16b-18b}{3}=-10.4\\\\\Rightarrow\dfrac{-2b}{3}=-10.4\\\\\Rightarrow b=-10.4\times\dfrac{-3}{2}\\\\\Rightarrow\ b= 15.6

hence, the value of b= 15.6

3 0
3 years ago
How do I add the fractions <br> 1/4 + 1/7 please help me
kiruha [24]
First, you have to find the LCD. The LCD of 4 and 7 is 28, so you rewrite the fraction:
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8 0
3 years ago
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The spinner is spun 80 times. What is a reasonable prediction of it landing on a white section?
LuckyWell [14K]

Answer:

It will land in a white spot 50% of the time. 50% of 80 is 40. So out of 80 times it will and on white 40 times.

8 0
3 years ago
There are 5 tomatoes, 5 bell peppers, and 5 cucumbers in the refrigerator. If Bodhi gets to pick twice and keeps what was random
irga5000 [103]
Hello!

First of all there are fifteen total vegetables. First of all we have the probability that he will get a tomato.

\frac{5}{15} =  \frac{1}{3}

Now if he were to select a tomato there would only be fourteen vegetables left. Now our probability will be out of 14. Now we have the cucumber.

\frac{5}{14}

Now we multiply our two probabilities.

\frac{1}{3} (\frac{5}{14} = \frac{5}{42}

Therefore, Bodhi will have D) 5/42 chance of selecting a tomato and then a cucumber.

I hope this helps!
7 0
3 years ago
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