HELP PLEASE IM FAILING MATH VERY HARD

Answer:

your answer has to be A or B  cuz the rest fo match up with the measurements

Step-by-step explanation:

Answer:

[tex]\frac{a^2 + b^2 +c ^2}{a*b + a*c + b*c} = -2[/tex]

Step-by-step explanation:

if:

a + b + c = 0

then we can rewrite:

c = -a - b

Now we can replace this in our expression:

[tex]\frac{a^2 + b^2 + c^2}{a*b + a*c + b*c} = \frac{a^2 + b^2 + (-a - b)^2}{a*b + a*(-a - b) + b*(-a - c)}[/tex]

Now we can rewrite:

(-a - b)^2 = a^2 + 2*a*b + b^2

Then we can rewrite our expression as:

[tex]\frac{a^2 + b^2 + a^2 + b^2 + 2*a*b}{a*b - a^2 - a*b - b^2 - b*a}[/tex]

Let's keep simplifying this:

[tex]\frac{2*(a^2 + b^2 + a*b)}{-a*b - b^2 - a^2}[/tex]

Here is easy to see the simplification we need to do, as we have the same factor in the denominator as in the numerator (just a different of sign).

[tex]\frac{2*(a^2 + b^2 + a*b)}{-a*b - b^2 - a^2} = \frac{2*(a^2 + b^2 + a*b)}{-(a^2 + b^2 + a*b)} = -2[/tex]

Then the expression is equal to -2

[tex]\frac{a^2 + b^2 +c ^2}{a*b + a*c + b*c} = -2[/tex]

Answer:

Step-by-step explanation:

P=4/28=1/7

Answer:

14.3% or 1/7

Step-by-step explanation:

4 / 28

4 students who play a sport and instrument divided by 28 total students

Answer: No

Step-by-step explanation:

Data: x+14<20

x=9? Is what your trying to find

Step one, Isolate x by subtracting 14 on both sides

X+14-14<20-14=X=6

Reason: Since you are trying to find if x=9, you have to isolate it. The way to do that is to get rid of +14 by subtracting it by 14. However, since what you do to one side you do to the other, you subtract +20 by 14 to get 6.

Since x=6 isn't x=9, the answer is No

Answer: No

I hope this helps!

Answer:

10

Step-by-step explanation:

If you look at it closely you can see its a complete circle.... on the sides its 12 then as you go to the center the first one is ten and the dot is in the center which should make it 10.

Answer:

it's basically 10, both sides are equal

Step-by-step explanation:

Answer:

Step-by-step explanation:

take 45 degree as reference angle

using sin rule

sin 45=opposite/hypotenuse

1/[tex]\sqrt{2}[/tex]=x/26

x=26/[tex]\sqrt{2}[/tex]

x=13[tex]\sqrt{2}[/tex]

x=18.38

x=18.4

The length of the perpendicular side of the triangle ΔGFE will be 18.38 units.

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.

Trigonometric functions examine the interaction between the dimensions and angles of a triangular form.

The triangle ΔGFE is shown. And the angle ∠GFE is a right angle.

We know that the sine of an angle is the ratio of the perpendicular to the hypotenuse. Then we have

sin 45° = x / 26

x = 26 sin 45°

x = 26 × 0.707

x = 18.38 units

The length of the perpendicular side of the triangle ΔGFE will be 18.38 units.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ2

Answer:

By using the pythagorean theorem a^2 + b^2 = c^2

D is the correct answer Where PQ

= √15^2+√19^2

=√ 225 + √361

= √ 586

Length of PQ = √586 = 24.2074368738(ans)

Answer:

48, because 6*8=48

Answer:

x=1-5[tex]\sqrt{3[/tex] or x=1+5[tex]\sqrt{3}[/tex]

Step-by-step explanation:

hope this helps

Answer:

x=1-5√3, x=1+5√3

Step-by-step explanation:

-3x^2 + 224 = — 6х + 2

add 6 on both sides

-3x^2+224+6x=2

subtract 2 on both sides

-3x^2+222+6x=0

rearrange for the quadratic formula

-3x^2+6x+222=0

use the quadratic formula

x=1-5√3, x=1+5√3

Step-by-step explanation:

x²=6²+8²

=36+64

= 100

x=√100 = 10

Answer:

[tex]\displaystyle 10 = x[/tex]

Step-by-step explanation:

[tex]\displaystyle a^2 + b^2 = c^2 \\ \\ 8^2 + 6^2 = x^2 \hookrightarrow 64 + 36 = x^2 \hookrightarrow \sqrt{100} = \sqrt{x^2} \\ \\ \boxed{10 = x}[/tex]

We only want the NON-NEGATIVE root sinse we are measuring the length of the hypotenuse.

I am joyous to assist you at any time.

Answer:

x=3 because 5-2=3 meaning 3+2=5

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

x+2-2=5-2

x=3

subtract 2 from both sides of the equation

Answer:

the width is 15

Step-by-step explanation:

Answer:

Step-by-step explanation:

Data could exists in several different forms which often dictates if the data can be used directly in its raw format or if it requires conversion to another format. The nature of data is often very robust. Some data may occur as numeric and have meaning in terms of addition and other statistical properties; however some are only dummy and are restricted to (0's and 1's). Similarly, some may be used to show rank or depth and as such have no meaning while trying to perform Mathematical calculation. Therefore, choosing statistical summaries for the data sivj as the. Mean, median and mode will depend on the input, binary data cannot be summarized using the median or mean except the use of a modal score. While the presentation of the data using graphs also rewired that the nature of the data be considered before selecting a suitable chart (linen, bar, dot, pie and so on).

y = -3(x - 6)

y = -3x + 18

3x + y = 18

Answer:

131/156 or about 84%

5/14 or about 36%

Step-by-step explanation:

P(<6 classes) = number of males and females not taking 6 out of total males and females, which is 131/156 or about 84%

P(M,5) = 74/156 x 20/74 which reduces to 5/14

Answer: Maybe a

Step-by-step explanation:

I mean it is confusing but still look over it

Answer:

The bottom one looks correct

Step-by-step explanation:

Any number from 1-infinity will make that true

Answer:

2[tex]\sqrt{2}[/tex] + 2[tex]\sqrt{15}[/tex]

Step-by-step explanation:

[tex]\sqrt{8}[/tex] = [tex]\sqrt{4}[/tex][tex]\sqrt{2}[/tex] = 2[tex]\sqrt{2}[/tex]

Answer:

take 48 degree as reference angle

use sine rule

sin48=opposite/hypotenuse

0.74=5.4/x

x0.74=5.4

x=5.4/0.74

x=7.29  m

Step-by-step explanation:

Answer:

[tex]sin 48 = \frac{5.4}{X}\\\\X = \frac{5.4}{sin 48}= 7.27m[/tex]

Answer:

30 in

Step-by-step explanation:

subtract 5 inches from 8 inches and you get 3 inches (the height)

then we already have the given 4 inches (the width)

then finally we can see from figure b that the depth is 5 inches

you multiply all of them together and get 60, before dividing that in half to get 30.

(not certain about units)

Answer:

need help asap

Step-by-step explanation:

Answer:

Is this the full question?

Answer:

D.21,600 kilograms

Step-by-step explanation:

The volume of the tank is Length x Width x Height (6*1.5*2.4)

So the volume is 21.6 cubic meters.

Therefore, there are 21.6 cubic meters of water.

The density of water is 1,000 kg per cubic meter. So multiply 1,000 to the number of cubic meters. (1,000*21.6)

The mass of the water in the tank is 21,600 kg

Answer:

a. 880

Step-by-step explanation:

Options are "a. 880 b. 90 c. 790 d. None of these choices"

Interval estimate of between 790 and 970 books checked out per day.

Lower limit is 790, Upper limit is 970

Point estimate of μ(x) = [Upper limit + Lower limit} / 2

Point estimate of μ(x) = [970 + 790] / 2

Point estimate of μ(x) = 1760/2

Point estimate of μ(x) = 880

So, the efficient, unbiased point estimate of the number of books checked out each day at the New York City Public Library is 880.

Answer:

The area of the triangle is of 6 units squared.

Step-by-step explanation:

Representation of the triangle:

This triangle, in the cartesian plane, has the vertices at these following points.

(7,7)

| -> 4 units down

(7,3) --- (10,3) -> 3 units to the right.

This can be represented as a right triangle with sides 4 and 3.

Area of a right triangle:

The area of a right triangle is the multiplication of the lengths of its sides divided by 2. So

4*3/2 = 12/2 = 6.

The area of the triangle is of 6 units squared.

Answer:

Each person would receive 2.8 kilograms of peaches.

Answer:

x=3, y=3√2

Step-by-step explanation:

This is a right isosceles triangle, so the sides of the main vertex are equal, so x=3

Using Pythagorean theorem:

y²=3²+3²=9+9=18

y=√18=3√2