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Harrizon [31]
3 years ago
10

Help please. Thanks!

Mathematics
2 answers:
snow_lady [41]3 years ago
4 0

Answer:i don’t know Use a calculator and then you’use a calculator and then you’ll figure out the answers

Step-by-step explanation:

Sorry if Being rude

Marizza181 [45]3 years ago
3 0

Answer:

A

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

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What is the slope of the line?​
Maurinko [17]

Answer:

-1

Step-by-step explanation:

i think thats corrext

3 0
3 years ago
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Suppose someone tells you that she has a triangle with sides having lengths 3.5, 4.5 and 5.5 yards. Is this a right triangle?
Katarina [22]
You can solve by using Pythagoras theorem.
Let the longest side be c.
a^2 + b^2 = c^2
If this holds, it is a right angle.

But, 3.5^2 + 4.5^2 is not equal to 5.5^2.
5 0
3 years ago
Read 2 more answers
Write the equation of a line with an undefined slope and point (1, 7).
Sonja [21]

Answer:

The equation of straight line is x = 1

Step-by-step explanation:

<u>Step </u>:-

The equation of straight line having slope 'm' and passing through the point

(x_{1} ,y_{1} ) is y-y_{1} = m (x-x_{1} )

Slope of horizontal line(that is x-axis) is m = 0

slope of vertical line (that is y-axis) is m is not defined

The equation of straight line having slope is not defined and passing through the point (1,7).

y-7 = \frac{1}{0} (x-1)

cross multiplication we will get equation

(y-7)(0)=1(x-1)

          x-1 = 0

The equation of straight line is x = 1

4 0
3 years ago
The average birth weight of elephants is 200 pounds. Assume that the distribution of birth weights is Normal with a standard dev
zhenek [66]

The birth weight of elephants at the 85th percentile is 262.16 pounds

<h3>What is the standard deviation?</h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that:-

The average birth weight of elephants is 200 pounds    \mu = 200

The deviation of 60 pounds.                                              \sigma = 60

The birth weight of elephants at the 85th percentile.      z = 85%= 1.036

Now from the formula of z-score:-

z=\dfrac{x-\mu}{\sigma}\\\\\\z=\dfrac{x-200}{60}\\\\\\1.036\times 60=x-200\\\\\\x=\ \ 262.16\ pounds

Hence the birth weight of elephants at the 85th percentile is 262.16 pounds

To know more about standard deviation follow

brainly.com/question/475676

#SPJ1

5 0
2 years ago
The Kamp family has twins, Rob and Rachel. Both Rob and Rachel graduated from college 2 years ago, and each is now earning $50,0
dybincka [34]

Answer:

z-value of rachel = 1.875

z-value of rob = -2

z-value of Rachel is more than that of rob. Thus rob is earning below average and rachel is earning above average.

Step-by-step explanation:

Let's denote the salary of Rob and Rachel per year by X. So, X = $50,000

We are told that;

For Rachel's industry;

Mean salary;μ1 = $35,000

Standard deviation;σ1 = $8,000

For Rob's industry;

Mean salary;μ2 = $60,000

Standard deviation;σ2 = $5,000

Formula for z - value is;

z = (X - μ)/σ

Thus;

z-value for rob is;

z2 = (X - μ2)/σ2

z2 = (50000 - 60000)/5000

z2 = -2

z-value for rachel is;

z1 = (X - μ1)/σ1

z1 = (50000 - 35000)/8000

z1 = 1.875

z-value of Rachel is more than that of rob. Thus rob is earning below average and rachel is earning above average.

5 0
3 years ago
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