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Ira Lisetskai [31]
3 years ago
13

A.

Mathematics
1 answer:
victus00 [196]3 years ago
4 0

Answer:

I think interest earned ❤️

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Your cell phone plan costs ​$39.99 per month plus ​$0.14 for each text message you send or receive. You have at most ​$43 to spe
ololo11 [35]
No more than 33 texts a month
you know the total amount spent, you know the total of the bill without texts
45=39.99+.15t
6 0
3 years ago
Which angle measures are correct ? Check all that apply .
Aneli [31]
Correct
m<2 = 125
m<8 = 55
m<14 = 100
m<16 = 80
8 0
3 years ago
I need help please please
miv72 [106K]

Answer:

The value of x is 7.

Step-by-step explanation:

First, you have to make the left side into 1 fraction by making the denormintor the same and make it into simplest form :

\frac{x}{3}  +  \frac{x}{6}

=  \frac{x \times 2}{3 \times 2}  +  \frac{x}{6}

=  \frac{2x}{6}  +  \frac{x}{6}

=  \frac{2x + x}{6}

=  \frac{3x}{6}

=  \frac{x}{2}

Next you have to multiply both sides by 2 in order to make x the subject :

\frac{x}{2}  =  \frac{7}{2}

\frac{x}{2}  \times 2 =  \frac{7}{2}  \times 2

x = 7

5 0
3 years ago
The lengths of lumber a machine cuts are normally distributed with a mean of 106 inches and a standard deviation of 0.3 inch. ​(
Vinvika [58]

Answer:

a) P(X>106.11)=P(\frac{X-\mu}{\sigma}\frac{106.11-106}{0.3})=P(z>0.37)

And we can find this probability with the complement rule:

P(z>0.37)=1-P(z

b) z =\frac{106.11- 106}{\frac{0.3}{\sqrt{44}}}=  2.431

And if we use the z score we got:

P(z>2.431) =1-P(z

Step-by-step explanation:

Let X the random variable that represent the lengths of a population, and for this case we know the distribution for X is given by:

X \sim N(106,0.3)  

Where \mu=106 and \sigma=0.3

Part a

We are interested on this probability

P(X>106.11)

And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

And using this formula we got:

P(X>106.11)=P(\frac{X-\mu}{\sigma}\frac{106.11-106}{0.3})=P(z>0.37)

And we can find this probability with the complement rule:

P(z>0.37)=1-P(z

Part b

For this case we select a sample of n =44 and the new z score formula is given by:

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

And if we find the z score we got:

z =\frac{106.11- 106}{\frac{0.3}{\sqrt{44}}}=  2.431

And if we use the z score we got:

P(z>2.431) =1-P(z

6 0
3 years ago
If you had to add two fractions with denominators of 4 and 5. What might the denominator of the sum be? Show more than one possi
mylen [45]

Answer:

your answer would be 20 because you would find what both can go into.

5 0
3 years ago
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