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laila [671]
3 years ago
11

I need help plz ASAP

Mathematics
2 answers:
Arisa [49]3 years ago
7 0
The answer is X=8 did it today in class.
netineya [11]3 years ago
4 0

Answer: x=8

Step-by-step explanation:

the sum of the interior angles of a quadrilateral is 360  (number of sides-2 * 180)

so

14x-7+11x-2+93+76= 360\\25x + 160=360\\25x= 200\\x=8

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The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of
Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

X \sim N(3.34,0.07^2)

Value let separated the top 3% is T and for bottom it would be B

P(X < T)= 0.97

Now converting, we get

P(Z < \frac{T-3.34}{0.07})= 0.97

Based on the normal standard tables, we get

P(Z < 1.881)= 0.97

Now compare these two above equations

\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

P(Z < \frac{B-3.34}{0.07})= 0.03

Based on the normal standard tables, we get

P(Z < -1.881)= 0.03

Now compare these two above equations

\frac{B-3.34}{0.07} = -1.881

= -1.881 \times 0.07 + 3.34 \\\\ = 3.21

hence, for bottom it would be 3.21

7 0
3 years ago
You have earned $200 doing chores how long will it take to triple your money if you keep it in an account earning 4.25 compound
Alekssandra [29.7K]

Answer:

25.85 years

Step-by-step explanation:

Use the formula for continuous compounding amount:

A = Pe^(r*t), where r is the interest rate as a  decimal fraction, P is the initial amount, and t is the time in years.

Here we have:

A = $200e^(0.0425*t) = 3($200) (this is triple the original amount)

Solve this for t.  Divide both sides by $200 and then use natural logs:

1e^(0.0425*t) = 3

Then 0.0425*t = ln 3 = 1.0986

Dividing both sides by 0.0425 will isolate t:

       1.0986

t = --------------- = 25.85 years

       0.0425

6 0
3 years ago
Read 2 more answers
Let z = 9 – 2i and zw = 25 70i. What is w? 1 8i 1 – 8i –1 8i –1 – 8i.
BartSMP [9]

Answer: A. 1+8i

Step-by-step explanation:

edge

7 0
3 years ago
Which number line represents all of the values of x for the equations x^2 =100m
statuscvo [17]

Given

\begin{gathered} x^2=100 \\ x=10 \\ x=-10 \end{gathered}

Procedure

3 0
1 year ago
the planet jupiter has an average distance of about 0.00008 LIght years from the sun. What is this distance in scientific notati
LuckyWell [14K]

Answer :The planet Jupiter

Step-by-step explanation:  It has an average distance from the sun of about  

4.837

×

10

8

. The planet Venus average distance from the sun of about  

6.72

×

10

7

On average, how much farther from the sun is Jupiter than Venus?

8 0
3 years ago
Read 2 more answers
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