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Tema [17]
3 years ago
13

Marissa dance studio charge a monthly fee

Mathematics
2 answers:
melomori [17]3 years ago
6 0

Answer:

Step-by-step explanation: The slope is 10 because when x moved positive 2, y moved positive 20 so y = 10x + b and you can just pick one point that the line crosses so I will use (2, 40) so when you put that in the equation it is 40 = 20 + b so b is 20. The answer is y = 10x + 20

Anastasy [175]3 years ago
3 0

Answer:

This question is incomplete so I can not answer this

Step-by-step explanation:

Because the question is incomplete

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The temperature was 75 degrees. at noon, the temperature increased by 7. by evening the temperature decreased by 7
DIA [1.3K]

Answer:

75

Step-by-step explanation:

75 + 7 = 82


82 - 7 = 75

6 0
1 year ago
The 3 points form a horizontal line: (-3.5,4),(0,4), and (6.2,4). Name Two additional points that fall on this line.
Dmitrij [34]

Answer:

see the explanation

Step-by-step explanation:

we know that

The equation of a horizontal line is equal to the y-coordinate of the point that passes through it

so

In this problem, the line passes through the points

(-3.5,4),(0,4), and (6.2,4)

The y-coordinate is 4

The equation of the horizontal line is

y=4

therefore

Any point with the y-coordinate equal to 4, fall on this line

Example

(1,4) and (5,4)

8 0
3 years ago
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 259.2-cm and a standard dev
Varvara68 [4.7K]

Answer:

The probability that the average length of rods in a randomly selected bundle of steel rods is greater than 259 cm is 0.65173.

Step-by-step explanation:

We are given that a company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 259.2 cm and a standard deviation of 2.1 cm. For shipment, 17 steel rods are bundled together.

Let \bar X = <u><em>the average length of rods in a randomly selected bundle of steel rods</em></u>

The z-score probability distribution for the sample mean is given by;

                            Z  =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \mu = population mean length of rods = 259.2 cm

           \sigma = standard deviaton = 2.1 cm

           n = sample of steel rods = 17

Now, the probability that the average length of rods in a randomly selected bundle of steel rods is greater than 259 cm is given by = P(\bar X > 259 cm)

 

     P(\bar X > 259 cm) = P( \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{259-259.2}{\frac{2.1}{\sqrt{17} } } ) = P(Z > -0.39) = P(Z < 0.39)

                                                                = <u>0.65173</u>

The above probability is calculated by looking at the value of x = 0.39 in the z table which has an area of 0.65173.

8 0
4 years ago
How many gallons are in 1,980 milliliters? Rounded to the nearest hundredth
Setler [38]

I believe this is the answer? If not I am sorry!

4 0
3 years ago
HELPPPPP!!! Can you TEACH ME HOW TO DO THIS and will give b
IRINA_888 [86]

Answer:

yh I can help the answer is 185/1000 bc u have to convert it as a fraction and u can simplify it by 5 then the answer will be 37/200 plz try this if not I will tell u something else

5 0
3 years ago
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