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4 years ago

Divide 8 in the radio 1:1

Mathematics

1 answer:

Aleksandr [31]4 years ago

7 0

Just divide it by 8 and get 1/8 but I’m not so sure that’s right

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I need help on this ASAP!!

vazorg [7]

The answer is 16 units
An easy way to find the perimeter is remembering the formula of a+b+c.
So in this case, you count how many units each line of the triangle it covers. 4+6+6= 16

7 0

3 years ago

Complete the ratio table

Alex17521 [72]

Under 12 would be 9
under 18 would be 13.5

5 0

3 years ago

Read 2 more answers

A small university is concerned with monitoring its electricity usage in its Student Center. Specifically, its officials want to

valkas [14]

Answer:

Since p-value > ∝, H0 is accepted

Step-by-step explanation:

Calculating gives the following results.

ANOVA Table

Source DF Sum Mean F Statistic P-value

of Square Square

Groups 6 191.61 31.935 0.020 0.999

(b/w groups)

Error

(within 14 21736.08 1552.577

groups)

Total 20 21927.69 1096.385

1. H0 hypothesis

Since p-value > ∝, H0 is accepted.

Hence the averages of all groups considered to be equal.

Or the difference between the averages of all groups is not big enough to reject H0.

2. P-value

P-value equals 0.999. This means that if we would reject H0, the chance of type1 error (rejecting a correct H0) would be too high i.e (99.99%)

The bigger p-value supports H0.

3. The statistics

The test statistic F equals 0.020, which lies in the accepted range: [-∞ : 2.8477]

6 0

3 years ago

Find MO and PR ............................................................

ddd [48]

MO = 12 and PR = 3

Solution:

Given $\triangle M N O \sim \Delta P Q R$ .

Perimeter of ΔMNO = 48

Perimeter of ΔPQR = 12

MO = 12x and PR = x + 2

If two triangles are similar, then the ratio of corresponding sides is equal to the ratio of perimeter of the triangles.

$$\Rightarrow \frac{\text{Perimeter of }\triangle MNO}{\text{Perimeter of }\triangle PQR} =\frac{MO}{PR}$

$$\Rightarrow \frac{48}{12} =\frac{12x}{x+2}$

Do cross multiplication.

$$\Rightarrow 48({x+2})= 12(12x)$

$$\Rightarrow 48x+96= 144x$

Subtract 48x from both sides.

$$\Rightarrow 48x+96-48x= 144x-48x$

$$\Rightarrow 96= 96x$

Divide by 96 on both sides, we get

⇒ 1 = x

⇒ x = 1

Substitute x = 1 in MO an PR.

MO = 12(1) = 12

PR = 1 + 2 = 3

Therefore MO = 12 and PR = 3.

7 0

3 years ago

2x + 4y =8 X = 3y -6

Sergio [31]

{x,y} = {-2,3}

[1] 2x + 4y = 8

[2] x - 3y = -11

4y + 2x = 8

-3y + x = -11

Solve equation for the variable x

[2] x = 3y - 11

Plug this in for variable x in equation [1]

[1] 2•(3y-11) + 4y = 8

[1] 10y = 30

Solve equation [1] for the variable y

[1] 10y = 30

[1] y = 3

By now we know this much :

x = 3y-11

y = 3

Use the y value to solve for x

x = 3(3)-11 = -2

Solution :

{x,y} = {-2,3}

<h2 />

~Savannah

4 0

3 years ago