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3 years ago

Choose the statistical question. * please help now

Mathematics

1 answer:

Oliga [24]3 years ago

4 0

Answer:

*me sweating while answering this*

Step-by-step explanation:

i think my dogs weigh about 50 pounds each

i am 5'6 feet tall

my favorite color is blue

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URGENT

Katyanochek1 [597]

Answer:

The answer to your question is Area = 62.5 u²

Step-by-step explanation:

Area = $c \frac{a + b}{2}$

a and b are bases

c = heigth

dAD = $\sqrt{(x2 - x1)^{2} - (y2 - y1)^{2} }$

dAD = $\sqrt{(-1 + 13)^{2} - (5 + 11)^{2} }$

dAD = $\sqrt{(12)^{2} - (16)^{2} }$

dAD = $\sqrt{144 + 256}$

dAD = $\sqrt{400}$

dAD = 20 u

dBC = $\sqrt{(3 - 0)^{2} - (2 + 2)^{2} }$

dBC = $\sqrt{9 + 16}$

dBC = $\sqrt{25}$

dBC = 5 u

dAB = $\sqrt{(3 + 1)^{2} - (2 - 5)^{2} }$

dAB = $\sqrt{(4)^{2} - (-3)^{2} }$

dAB = $\sqrt{16 + 9}$

dAB = $\sqrt{25}$

dAB = 5u

Area = $5 \frac{20 + 5}{2}$

Area = $5 \frac{25}{2}$

Area = 5(12.5)

Area = 62.5 u²

6 0

4 years ago

What is the value of n in the equation –negative StartFraction one-half EndFraction left-parenthesis 2 n plus 4 right-parenthesi

stepladder [879]

The value of n in the equation is 1

Step-by-step explanation:

The equation is $-\frac{1}{2}$ (2n + 4) + 6 = -9 + 4(2n + 1)

At first we must do that:

1. Open the brackets in both sides

2. Add like terms

3. Solve to find n

L.H.S:

∵ $-\frac{1}{2}$ (2n + 4) + 6 = -n - 2 + 6

∴ $-\frac{1}{2}$ (2n + 4) + 6 = -n + 4

R.H.S:

∵ -9 + 4(2n + 1) = -9 + 8n + 4

∴ -9 + 4(2n + 1) = 8n - 5

∴ -n + 4 = 8n - 5

- Add 5 to both sides

∴ -n + 9 = 8n

- Add n to both sides

∴ 9 = 9n

- Divide both sides by 9

∴ n = 1

The value of n in the equation is 1

Learn more:

You can learn more about equation in brainly.com/question/8955867

brainly.com/question/9738996

brainly.com/question/10708697

#LearnwithBrainly

4 0

3 years ago

Read 2 more answers

NEED HELP PLEASE!!!!

soldi70 [24.7K]

The answer is C, 10 7/15 !

7 0

4 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

tamaranim1 [39]

ANSWER

$P(X=3 \: or \: X=0) = 0.45$

EXPLANATION

From the above table,

$P(X=0) = 0.3$

and

$P(X=3) = .15$

$P(X=3 \: or \: X=0) = P(X=3) + P(X=0)$

This implies that;

$P(X=3 \: or \: X=0) = 0.15 + 0.3$

$P(X=3 \: or \: X=0) = 0.45$

8 0

3 years ago

Read 2 more answers

If x+y=15 and x-y=25, then what is the value of 2x^2 - y^2?

zimovet [89]

Answer:

775

Step-by-step explanation:

We are given two equations in which we can perform systems of equations by putting these two equations on top of each other then solving for one variable:

x+y=15

x-y=25

Here, we can cancel out the y variable and get:

2x=40

x=20

Then we can put the x variable into any of the equations to solve for y (in this case I will use the equation x+y=15 so 20+y=15

y=-5

Now, we can solve by plugging both variables into 2x^2 - y^2 :

2(20)^2 - (-5)^2

800-25 = 775

I hope this helps!

7 0

3 years ago

Read 2 more answers