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3 years ago

PLEASE IM IN CLASS AND I REALLY NEED AN ANSWER!! 20 PTS & BRAINLIEST!!

Mathematics

2 answers:

makkiz [27]3 years ago

7 0

Answer:

Step-by-step explanation:

you add all the numbers up then divide by how many numbers there are

cricket20 [7]3 years ago

6 0

Answer:

The mean is 40

Step-by-step explanation:

The mean is where you add all the numbers together and then divide by the number of numbers

mean =(0+ 10+ 40+ 40+ 40+ 50+ 50+ 50+ 60+ 60)/ 10

= 400/10

=40

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Dafna1 [17]

Your answer should be A, sorry if that’s incorrect it just makes the most sense! :)

7 0

3 years ago

Circle all the categories in which the 25 can be classified as:

Sergio [31]

Answer:

Rational, Natural, Whole, Integer

Step-by-step explanation:

4 0

3 years ago

Solve the following system. x2 + y 2= 25 2x + y = 10 The solution set

anzhelika [568]

Answer: {(5,0), (3,4)}

Step-by-step explanation:

You can apply the Substitution method:

- Solve for y from the second equation.

- Substitute into the first equation and solve for x.

Then:

$y=10-2x$

$x^2+y^2=25\\x^2+(10-2x)^2=25\\$

(Remember that: $(a\±b)^2=a^2\±2ab+b^2$ )

$x^2+(10^2-2(10)(2x)+(2x)^2)=25\\x^2+100-40x+4x^2=25\\5x^2-40x+75=0\\x^2-8x+15=0\\(x-5)(x-3)=0\\\\x=5\\x=3$

Substitute the values obtained into one of the original equation and solve for y:

$2(5)+y=10\\10+y=10\\y=0\\\\2(3)+y=10\\6+y=10\\y=4$

The solution set is: {(5,0), (3,4)}

8 0

3 years ago

The equation d = can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent equat

gulaghasi [49]

D=m/v
dv=m
v=m/d
..........

5 0

4 years ago

Read 2 more answers

Write an equation of the line in slope- intercept form

gavmur [86]

Answer:

$a)\ y=-\frac{1}{3}x$

Step-by-step explanation:

Slope (m) form: $\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{1-0}{-3-0} \\\\m=\frac{1}{-3} \\\\m=-\frac{1}{3}$

$y=mx+b\\y=-\frac{1}{3}x +b$

(0, 0)

$y=-\frac{1}{3}x +b\\0=-\frac{1}{3}(0) +b\\0=0+b\\0=b$

$y=-\frac{1}{3}x +0\\y=-\frac{1}{3}x$

Check your answer:

$y=-\frac{1}{3}x \\1=-\frac{1}{3}(-3)\\1=-1$

This statement is true

Hope this helps!

6 0

2 years ago