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2 years ago

7

The mean of 19 numbers is 35.

2 answers:

sashaice [31]2 years ago

7 0

Is the answer 33.1
Hopefully this helps

sladkih [1.3K]2 years ago

4 0

First we find the sum of all values using the mean formula.

Then we subtract the value 70 from the total sum to get the sum of the values without 70 (in order to compute the mean of these values)

Then we compute the mean.

If you have any additional questions ask.

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#29 is the only one I need

const2013 [10]

So the neat number is all the numbers added together I'm pretty sure or it's either all the numbers added together times the amount of numbers
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3 years ago

Find the area of a triangle with legs that are 9mm 6mm and 12mm

Sidana [21]

Here we are given the three sides of the triangle.

So we have Heron's formula to find its area.

Heron's formula is given by :

$A= \sqrt{S(S-A)(S-B)(S-C)}$

where A, B and C are sides of triangle and S is semi perimeter which is given by,

$S= \frac{A+B+C}{2}$

plugging values of A, B and C to find S

$S= \frac{9+6+12}{2}$

S=13.5

Now plugging values of A, B , C and S in Heron's formula

$A= \sqrt{13.5(13.5-9)(13.5-6)(13.5-12)}$

A=26.14 mm²

Answer: Area of triangle is 26.14 mm².

6 0

3 years ago

What are the values of x in the equation 4x2 + 4x - 3 = 0?

9966 [12]

Answer:

x= 0.5

or x= -1.5

Step-by-step explanation:

Let's solve your equation step-by-step.

4x2+4x−3=0

Step 1: Factor left side of equation.

(2x−1)(2x+3)=0

Step 2: Set factors equal to 0.

2x−1=0 or 2x+3=0

x= 1/2 or x= −3/2

5 0

3 years ago

What number multiplied by itself 3 times equals 9?

Arlecino [84]

The is no number.I hope this helps

4 0

3 years ago

Read 2 more answers

Please check my answer I got 14/16<br> 20 points

ella [17]

Answer:

$\frac{49}{64}$

Step-by-step explanation:

$\frac{7}{8}$ * $\frac{7}{8}$ = $\frac{7*7}{8*8}$ = $\frac{49}{64}$

5 0

3 years ago

Read 2 more answers