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Sliva [168]
3 years ago
6

Solve y - 3x = 13 for y y = ?

Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:

y = 3x + 13

Step-by-step explanation:

Here, we want to solve for y

To solve for y, we simply are going to make y the subject of the formula

We have this as;

y - 3x = 13

y = 13 + 3x

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You rent an apartment that costs $1300 per month during the first year, but the rent
Darina [25.2K]

Answer:

1910

Step-by-step explanation:

if you times 120 by 5 you get 610 so just add that to 1300 and you now pay 1910$ a month to live in this apartment

7 0
2 years ago
A cylindrical tank is half-full of oil. The cylinder has a base radius of 100 cm. The height of the cylinder is 250 cm. How many
lbvjy [14]
V=hpir²


1/2 full

Vcylinderthisone=(1/2)hpir^2
given
h=250
r=100

so

V=(1/2)(250)pi(100)²
V=125pi10000
V=1250000pi
aprox pi=3.141592
V=3926990 cm^3

divide by 1000
3926.99 liters
about 3927 liters
7 0
3 years ago
Read 2 more answers
in one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean
VARVARA [1.3K]

Answer:

a=1050 -0.126*218=1022.53

So the value of height that separates the bottom 45% of data from the top 55% is 1022.53.  

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

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

X \sim N(1050,218)  

Where \mu=1050 and \sigma=218

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.55   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.45 of the area on the left and 0.55 of the area on the right it's z=-0.126. On this case P(Z<-0.126)=0.45 and P(z>-0.126)=0.55

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=-0.126

And if we solve for a we got

a=1050 -0.126*218=1022.53

So the value of height that separates the bottom 45% of data from the top 55% is 1022.53.  

8 0
3 years ago
Evalúa 9-b cuando b=8
Amiraneli [1.4K]

Answer:

<h2><em>1</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>b</em><em>=</em><em>8</em>

<em>Now</em><em>,</em>

<em>9</em><em>-</em><em>b</em>

<em>=</em><em>9</em><em>-</em><em>8</em>

<em>=</em><em>1</em>

<em>Hope</em><em> </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

8 0
3 years ago
What’s the correct answer for this question?
sp2606 [1]

A total of 13 teens were surveyed.

8 of those read books.

The probability would be 8/13 = 0.6153

Rounded to the nearest hundredth = 0.62

8 0
3 years ago
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