HELp show work too pleaseee

Answer:

[tex]x = \frac{2(A_T) }{(AB) + (AC) + (BC)} [/tex]

Answer:

C

Step-by-step explanation:

4(8-x)=8

32-4x=8

-4x=-24

x=6

Answer: C

[tex]\frac{3}{4}*\frac{1}{3}=\frac{3}{12}=\frac{1}{4}[/tex]

Answer:

-1 is the answer god luck

Answer:

Variable- n

Coefficients- -2 and -9

No exponent

No constant

Step-by-step explanation:

Hope this helps!

Step-by-step explanation:

the variable is n

the coefficient is -11

the exponent is 1

[tex] - 11n \\ {n}^{1} [/tex]

the constant is 0

Answer:

Step-by-step explanatio

it can be 7 children and 1 adult, or 3 adults.

i'd say it's,  c = 28, while a = 14

There are 40 adults and 2 children had haircuts on Friday.

An equation is an expression that shows the relationship between two or more numbers and variables.

We are given the system of equation as;

x + y = 42

4x + 14y = 568

We need to solve, let 'x' = 42-y and substitute this expression for 'x' in the second equation to get:

4(42-y) + 14y = 568

168 - 4y + 14y = 568

168 + 10y = 568

10y = 400

y = 40

therefore, x = 2

There are 40 adults and 2 children had haircuts on Friday.

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Answer: 79

Step-by-step explanation:

Answer:

79

Step-by-step explanation:

95 total

3x8=24

24 - 95= 71

3 divided by 24=8

71+8=79

Answer:

4/25

Step-by-step explanation:

2kg in grams is 2000g

320/2000 simplifies to 4/25

Answer:

= 320,000g

Step-by-step explanation:

1 kg = 1,000 g so 320 kg = 320*1000 = 320,000 g. Simple!

Answer:

The number is 31

Step-by-step explanation:

Let the number be x

Subtract 12 from the number = x - 12

Then multiply the difference by -7 = (-7)*(x - 12)

(-7)(x - 12) = -133

-7x - 12*(-7) = -133      

-7x  + 84    = - 133

           -7x = -133 - 84

          -7x  = -217

             x  = -217/-7

            x = 31

Answer:

The equation for the perpendicular bisector of the line segment will be:

[tex]y=-\frac{7}{2}x-13[/tex]

Step-by-step explanation:

Given the endpoints of the line segments

Determining the slope between (5,-4) and (-9, -8)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(5,\:-4\right),\:\left(x_2,\:y_2\right)=\left(-9,\:-8\right)[/tex]

[tex]m=\frac{-8-\left(-4\right)}{-9-5}[/tex]

[tex]m=\frac{2}{7}[/tex]

We know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line, such as:  

slope = m = 2/7

Thus, the slope of the the new perpendicular line = – 1/m = (-1)/(2/7)= -7/2

Next, determining the mid-point between  (5,-4) and (-9, -8)

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]

[tex]\left(x_1,\:y_1\right)=\left(5,\:-4\right),\:\left(x_2,\:y_2\right)=\left(-9,\:-8\right)[/tex]

[tex]=\left(\frac{-9+5}{2},\:\frac{-8-4}{2}\right)[/tex]

Refine

[tex]=\left(-2,\:-6\right)[/tex]

We know that the point-slope form of equation of line is

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where

substituting the slope of the perpendicular line -7/2 and the point (-2, -6)

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-6\right)=-\frac{7}{2}\left(x-\left(-2\right)\right)[/tex]

[tex]y+6=-\frac{7}{2}\left(x+2\right)[/tex]

Subtract 6 from both sides

[tex]y+6-6=-\frac{7}{2}\left(x+2\right)-6[/tex]

[tex]y=-\frac{7}{2}x-13[/tex]

Therefore, the equation for the perpendicular bisector of the line segment will be:

[tex]y=-\frac{7}{2}x-13[/tex]

Answer:

x= 28 and y=21

Step-by-step explanation:

x - y = 7

x + y = 49

add the two equation and the y's will cancel out

2x = 56  divide by 2

x = 28

replace 28 for x in the first equation and solve for y

28 - y = 7

y = 21

Answer:

4

Step-by-step explanation:

The equation would be x * 3 = 12 because we know that Hal's age is 12 and that he's 3 times as old as his nephew. When we solve it we get the answer 4.

Answer:

hello your question is incomplete attached below is the complete question

answer; [tex]\frac{\pi ^{2} }{16}[/tex]

Step-by-step explanation:

attached below is a detailed solution to the given question above

where :

cos 2x = 1-2sin^2x

cos2x = 2 cos^2x -1

sin^2 2x + cos^2 2x = 1

1-cos^2 2x = sin^2 2x

Answer:

[tex]\mathbf{ Volume (V) = \dfrac{\pi^2}{16} }[/tex]

Step-by-step explanation:

[tex]y = sin x .cos x \\ \\ A(x) = \pi [ sin \ x * cos \ x]^2[/tex]

[tex]= \pi sin^2 x* cos ^2x[/tex]

[tex]Volume (V) = \int ^{\pi/2}_{0} \pi \ sin^2 x \ cos^2x \ . dx[/tex]

[tex]=\pi \int ^{\pi/2}_{0} \Bigg [ \dfrac{1-cos \ 2x}{2} \times \dfrac{1 + cos \ 2x}{2} \Bigg ] \ . dx[/tex]

[tex]=\dfrac{\pi}{4} \int ^{\pi/2}_{0} \ [1 - cos^2 \ 2x] \ . dx[/tex]

[tex]=\dfrac{\pi}{4} \int ^{\pi/2}_{0} sin ^2 2x \ . dx[/tex]

[tex]=\dfrac{\pi}{4} \int ^{\pi/2}_{0} \ \dfrac{1-cos \ 4x}{2} \ . dx[/tex]

[tex]=\dfrac{\pi}{8} \int ^{\pi/2}_{0} \ (1-cos \ 4x) \ . dx[/tex]

[tex]=\dfrac{\pi}{8} \Bigg [x - \dfrac{sin \ 4x}{4} \Bigg]^{\pi/2}_{0}[/tex]

[tex]=\dfrac{\pi}{8} \Bigg [(\dfrac{\pi}{2} -0)-0 \Bigg][/tex]

[tex]\mathbf{ =\dfrac{\pi^2}{16} }[/tex]

Answer:

864

Step-by-step explanation:

216 + 216 = 432 +216= 448 +216= 864  

The minimum length of fencing is 72ft and dimensions are x = 18ft, y=12ft

A fence, wall is a vertical construction used to barricade a space from views, air, or light or to keep out people and animals.

This excludes buildings or parts of buildings that are intended to support a roof, awning, or other horizontal structure, such a building's wall.

let x be the length of each side and y be the width of each side of fence

xy = 216

y = 216/x

total length of fencing = 2x+3y

P = 2x+3y

P = 2x + 3(216/x)

P = 2x + 648/x

On differentiating

P' = 2 - 648/(x²)

for P' = 0

2 = 648/(x²)

(x²) = 324

x = 18

y = 216/18

y = 12ft

Hence length of fencing is = 2x+3y

= 2*18 + 3(216/18)

= 2*18 + 3*12

= 72ft

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Answer:

35% of 480 = 168

Step-by-step explanation:

35/100 * 480

     = 168

Answer:

x=1.9441612

Step-by-step explanation:

Hope it

Answer:

47%

Step-by-step explanation:

47/100= 0.47

Answer:

Answer: C

Step-by-step explanation:

The Cosine Function

The graph of a cosine function is a sinusoid that starts at its maximum value of 1 at x=0 and takes x=2π radians to complete a full cycle. The function of the parent cosine function is:

[tex]y=\cos x[/tex]

Both the amplitude A and the angular frequency w of a cosine can be modeled by the function

[tex]y=A\cos(\omega x)[/tex]

The graph of the cosine function shown in the figure has an amplitude of A=3 and it completes a full cycle at x=π/2, thus:

[tex]\frac{\pi}{2}\omega =2\pi[/tex]

Thus:

[tex]\omega = 4[/tex]

Therefore, the equation of the sinusoid is:

[tex]y=3\cos (4x)[/tex]

Answer: C

Answer:

b apeeeex

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

x = 3

a = 3

b = -2

c = 1

d = 0

Add them

3 + (-2) + 1 + 0

1. Find Lowest Value of X Possible

2. Go from there

Answer:

It’s still 11.9

Step-by-step explanation:

Answer:

48 cups

Step-by-step explanation:

There are 16 cups in 1 gallon. I know this because i divided 64 by 4 to get the amount added. If you subtract 16 from 64, you get 48 cups.

Answer:

306.007

Step-by-step explanation:

Answer:

306.07

Step-by-step explanation:

300+6+7*0.01

306+0.07

306.07

Answer:

x = -4

y = 12

I hope it helps you

1 1/5 - 3/5 = 3/5

9 1/5 - 3/5 = 8 3/5

Answer:

1: 3/5 2: 8 3/5

Step-by-step explanation:

1 3/5 becomes 6/5. 6/5 - 3/5 = 3/5. 9 1/5 becomes 46/5. 46/5 - 3/5 = 43/5. 5*8=40 so 8 3/5.

Answer: -0.6 recurring

Step-by-step explanation:

-2/3 = -0.6 recurring

Answer: The correct unit rate = 2 pound per quart.

Her error instead dividing of that she multiplied both fraction.

Step-by-step explanation:

Given: Jessie said the rate [tex]\dfrac12[/tex] pound / [tex]\dfrac14[/tex] quart can be written as the unit rate [tex]\dfrac18[/tex] pound per quart.

The rate [tex]\dfrac12[/tex] pound / [tex]\dfrac14[/tex] quart = [tex]\dfrac{\dfrac{1}{2}}{\dfrac14} =\dfrac12\times\dfrac41=2\ \ \ \ \ \ [ \ \dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times\dfrac{d}{c}\ ][/tex]

The correct unit rate = 2 pound per quart.

Her error instead dividing of that she multiplied both fraction.

Answer:

The answer is b - 2c

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.

Hoped this helped!

Answer:

The answer to this question is b - 2c

Answer:

yes.

Step-by-step explanation: