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2 years ago

Need help. pls help. i suck at math. math is a no no for me. help me pls.

Mathematics

1 answer:

Angelina_Jolie [31]2 years ago

5 0

Answer:

A5#A

Step-by-step explanation:

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Sea level is considered to be 0 feet. A probe released at sea level dropped at a constant rate for 3.25 minutes, reaching an ele

HACTEHA [7]

d = r * t

d/t = r

-35.75 / 3.25 = r

-11 = r

r = -11 ft / min

d = r*t

d = -11 ft/min * 1 min

d = -11 ft

The probe is 11 feet below sea level after 1 minute

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3 years ago

How to solve -x^2-2x+1

Wittaler [7]

Answer:

Common factor

Factor by grouping

−

-x^{2}-2x+1

−x2−2x+1

−

(

−

)

{\color{#c92786}{-1(x^{2}+2x-1)}}

−1(x2+2x−1)

Solution−

-1(x²+ 2x-1 )

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3 years ago

Engineers measure angles in gradients, which are smaller than degrees. The table shows the conversion of some angle measures in

Schach [20]

Answer:

1.11

Step-by-step explanation:

edgenuity

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3 years ago

PLSS I NEED HELP ASAP BECAUSE ITS DUE SOON

Agata [3.3K]

D. 10 x 62

If one row needs 62 bricks and there's 10 rows, you multiply them to get how many bricks nick needs

3 0

3 years ago

The probability of rain on any given day is 2/3 . What is the probability of at most one day of rain during the next three days?

MArishka [77]

Answer:

$\frac{7}{27}$

Step-by-step explanation:

Let the event of raining on a day be success.

Then probability of success, $p=\frac{2}{3}$

So, probability of failure is not raining on a day and is given as,

$q=1-p=1-\frac{2}{3}=\frac{3-2}{3}=\frac{1}{3}$

Now, number of days to check the probability of rain, $n=3$

Now, probability of raining at most one day means number of success is either 0 or 1.

Using Bernoulli's distribution for $X=0,1$

$P(X=0\textrm{ or }X=1)=_{0}^{3}\textrm{C}p^{0}q^{3-0}+_{1}^{3}\textrm{C}p^{1}q^{3-1}\\\\P(X=0\textrm{ or }X=1)=(\frac{1}{3})^{3}+3(\frac{2}{3})^{1}(\frac{1}{3})^{2}\\\\P(X=0\textrm{ or }X=1)=\frac{1}{27}+\frac{2}{9}\\\\P(X=0\textrm{ or }X=1)=\frac{1}{27}+\frac{6}{27}\\\\P(X=0\textrm{ or }X=1)=\frac{1+6}{27}=\frac{7}{27}$

Therefore, the probability of at most one day of rain during the next three days is $\frac{7}{27}$

6 0

3 years ago

Need help. pls help. i suck at math. math is a no no for me. help me pls.​

Need help. pls help. i suck at math. math is a no no for me. help me pls.