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777dan777 [17]
3 years ago
12

I need help, can’t figure out

Mathematics
1 answer:
Xelga [282]3 years ago
3 0

Answer:

9x^2+48x+64

Step-by-step explanation:

i combined liked terms

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a black mamba snake crawls along the ground at a rate of 10 miles per hour. Convert this rate to kilometers per hour.
DedPeter [7]

Answer:

16.09 kph

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 9090​% of all males.​ (Accommodating 1
Molodets [167]

Answer:

Hip breadths less than or equal to 16.1 in. includes 90% of the males.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14.5

Standard Deviation, σ = 1.2

We are given that the distribution of hip breadths is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.10.

P(X > x)  

P( X > x) = P( z > \displaystyle\frac{x - 14.5}{1.2})=0.10  

= 1 -P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.10  

=P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.90  

Calculation the value from standard normal z table, we have,  

P(z < 1.282) = 0.90

\displaystyle\frac{x - 14.5}{1.2} = 1.282\\x = 16.0384 \approx 16.1  

Hence, hip breadth of 16.1 in. separates the smallest 90​% from the largest 10%.

That is hip breaths greater than 16.1 in. lies in the larger 10%.

4 0
3 years ago
Plsss help this is a math problem
Darina [25.2K]
There are 4 terms in the expression
5 0
3 years ago
Read 2 more answers
1/4 times 24 times 2/3
Strike441 [17]
24(1/4)= 6

6(2/3)= 12/3= 4

The answer is 4. Hope this helps!
6 0
3 years ago
What is the slope of the line that passes through the points<br> (-16, -5) &amp; (-15, -7)
In-s [12.5K]

Answer:

<u>slope=-2</u>

Step-by-step explanation:

Okay so we just take those coordinates and apply them to this formula:        

y2-y1/x2-1

then simplify to get -2

if you want me to elaborate just say the word

8 0
3 years ago
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