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bekas [8.4K]
3 years ago
13

Please help me idk this

Mathematics
2 answers:
Softa [21]3 years ago
8 0
43.010 is your answer
Zepler [3.9K]3 years ago
5 0

Answer:

43.1

Step-by-step explanation:

tenth place is the first digit to the right of the decimal. when asked to round a number you look at the numbers beside the tenth place.

you see  42.093

any number 5 and up gets round to the next number

You might be interested in
In the United States, the mean and standard deviation of adult men's heights are 70 inches (5 feet 10 inches) and 4 inches, resp
Artyom0805 [142]

Answer:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

Step-by-step explanation:

For this case we can convert all the values to inches in order to standardize the solution:

5ft * \frac{12 in}{1ft}= 60 in

6ft * \frac{12 in}{1ft}= 72 in

Let X the random variable that represent the heights of US mens, and for this case we know the distribution for X is given by:

X \sim N(70,4)  

Where \mu=70 and \sigma=4

We are interested on this probability

P(X>72)

We can use the z score formula given by:

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

Using this formula we got:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

5 0
3 years ago
PLS HALPPPPP!!!!
andrey2020 [161]

Answer:

11.01

Step-by-step explanation:

3.78+4.51+2.72=11.01

4 0
3 years ago
Use the substitution method to solve the system of equations 5x-2y=9 3x+4y=-5
krek1111 [17]

Answer:

(1,-2)

Step-by-step explanation:

x= 1

y= 2

3 0
2 years ago
Help please thank you
butalik [34]
A - 2x^2 + 2x - 2

To find this, set up the equation:

(-x^2 + 6x - 1) + ( 3x^2 - 4x - 1)

With this, you need to combine like terms while taking into consideration the addition sign.

-x^2 + 3x^2 = 2x^2
6x + - 4x = 2x
- 1 + - 1 = - 2

Hope this helps!




7 0
3 years ago
What is 45 as a fraction?
Rama09 [41]
A whole number is always written as itself over one.

45/1 

Answer:   45/1
7 0
3 years ago
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