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3 years ago

9

What is the meadian and mode i tried but i got sooooooooo confused im in 7th grade

1 answer:

ELEN [110]3 years ago

4 0

The median is the middle number in a value, so if you have
123456789 The median would be 5 because that is the middle number and it's even because on both side it's 4 numbers.

The mode is the number that appears the most or the same so for example..
122245678 The mode would be 2 because it appears the most in that value :)

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What number could t represent to make the inequality true? 2t+4<-8

Anna71 [15]

2t + 4 < -8

2t < -12

t < -6

For the inequality to be true, t must be a number that is less than -6.

Hope this helps!

6 0

2 years ago

What is 3/-4 ÷ (-2 1/3)

attashe74 [19]

Answer:

9/28

Step-by-step explanation:

First transform -2 1/3 to -7/3. Then find the reciprocal of -7/3 which is -3/7. Multiply that to 3/-4 which becomes -9/-28 which equals 9/28.

5 0

4 years ago

Read 2 more answers

Amiraneli [1.4K]

Answer:

C) The solution for the given system of equations are A(0,-5) and B(-4,3)

Step-by-step explanation:

The given system of equation are : $x^{2} + y^{2} = 25\\2x + y = -5$

from equation 2, we get y = -5 - 2x .

Put the above value of y in the equation (1).

We get: $x^{2} + y^{2} = 25 \implies x^{2} + (-5-2x)^{2} = 25$

By ALGEBRAIC IDENTITY:

$(a+b)^{2} = a^{2} + b^{2} + 2ab\\ (-5-2x)^{2} = (-5)^{2} + (-2x)^{2} + 2(-5)(-2x)$

or, $x^{2} + (-5-2x)^{2} = 25 \implies x^{2} + (25 + 4x^{2} + 20x) = 25$

or, $5x^{2} + 20x = 0 \implies x(5x + 20) = 0$

⇒ x = 0 or, x = -20/5 = -4

So, the possible values for x are: x = 0 or x = -4

If x = 0, y = -5-2x = -5-2(0) = -5

and if x = -4, y = -5 -2(-4) = -5 + 8 = 3

Hence, the solution for the given system of equations are A(0,-5) and B(-4,3)

8 0

3 years ago

Solve 2x-16 divided 4

irinina [24]

I hope this helps you

2x/4-16/4

x/2-4

4 0

3 years ago

Which equation represents a population of 490 animals that increases at an annual rate of 20% ?

Readme [11.4K]

Answer:

Step-by-step explanation:

The standard form of this exponential function is

$y=a(b)^x$ where a is the initial value and b is the growth rate. Our initial value is 490 and our growth rate is .2 so the equation is

$y=490(.2)^x$

8 0

3 years ago