PLEASE HELP I NEED UR HELP!!! 6-y+3

Answer:

1x 900y A

1.5xthere is orgian for B but none for a

Answer:

x = 7

Step-by-step explanation:

3x-1/9(27) = 18

x = 21/3

=7

Answer:

B. 7

Step-by-step explanation: Took test

Answer: 12

Step-by-step explanation:

For this problem, all you have to do is plug in x=2 into all the x you see.

-3(2)+1.5+2.5(2)-4.5+8(2)

-6+1.5+5-4.5+16=12

Answer:

Replace the variable x = 2 in the expression.

−3⋅2+1.5+2.5(2)−4.5+8(2)

Simplify each term.

multiply −3 by 2 .

−6+1.5+2.5(2)−4.5+8(2)

Multiply 2.5 by 2.

Multiply 8 by 2.

−6+1.5+5−4.5+16

Simplify by adding and subtracting.

Tap for fewer steps...

Add −6 and 1.5

−4.5+5−4.5+16

Add −4.5 and 5.

0.5−4.5+16

Subtract 4.5 from 0.5.

−4+16

Add −4 and 16.

= 12

Step-by-step explanation:

Answer: 333.2ft

Step-by-step explanation:

We can draw a triangle rectangle, where the distance between the base of the building and the car is one cathetus (300ft)

The height of the building is the other cathetus.

Now, we know that the angle of depression from the top of the building to the car is 42°

This angle is measured from a perpendicular line in from the building, so the "top angle" of the triangle rectangle will be:

90° - 42° = 48°

if we steep on this angle, the 300ft cathetus is the opposite cathetus and the height of the building is the adjacent cathetus.

Here we can use the relation:

Tan(A) = Opposite cathetus/adjacent cathetus:

Then:

Tan(48°) = H/300ft

Tan(48°)*300ft = H = 333.2ft

Answer:

270 ft

Step-by-step explanation:

The angle of depression from the top of the building to the car = 42° and the distance from the car to the building is 300 ft.

This can be represented by a right triangle with:

Adjacent side to the angle = distance from the car to the building = 300 ft, opposite side to angle = height of building = x and angle (θ) = 42°

From trigonometry:

[tex]tan(\theta)=\frac{opposite}{adjacent} \\Therefore:\\tan(42)=\frac{x}{300}\\ x = 300*tan(42)= 300*0.9\\x=270ft[/tex]

The height of the building is 270 ft

Answer:

0.13

Step-by-step explanation:

change of heat: 35-25 =10 degrees

mass=20

energy=26

c =??

c = Q / (m * ΔT)

   =26/20*10= 26/200=0.13 J/g*k

2x^3y + 7xy^2 - 3x^2 - 12y

Answer:

● 2x³y + 7y²x - 3x² - 12y ✔

Answer:

See steps below

Step-by-step explanation:

We need to work with each side of the equation at a time:

Left hand side:

Write all factors using the basic trig functions "sin" and "cos" exclusively:

[tex]tan^2(x)\,cos^2(x)=\frac{sin^2(x)}{cos^2(x)} cos^2(x)=sin^2(x)[/tex]

now, let's work on the right side, having in mind the following identities:

a)  [tex]sec^2(x)-1=tan^2(x)=\frac{sin^2(x)}{cos^2(x)}[/tex]

b) [tex]1-sin^4(x) =(1-sin^2(x))\,(1+sin^2(x))[/tex]

c) [tex]1-sin^2(x)=cos^2(x)[/tex]

Then replacing we get:

[tex]\frac{(sec^2(x)-1)\,(1-sin^4(x))}{1+sin^2(x)} =\frac{sin^2(x)(1+sin^2(x))(1-sin^2(x))}{cos^2(x)(1+sin^2(x)))} =\frac{sin^2(x)(1+sin^2(x))\,cos^2(x)}{cos^2(x)(1+sin^2(x)))}=sin^2(x)[/tex]

Therefore, we have proved that the two expressions are equal.

Answer:

rectangle 32

triangle 16

Step-by-step explanation:

The area of the rectangle is

A = bh

A = 8*4 = 32

The area of the triangle is 1/2 of the area of the rectangle

A =1/2 bh = 1/2 *32 = 16

Answer:

triangle = 16

rectangle = 32

It's the last option

Step-by-step explanation:

A for rectangle = b * h

= 8 * 4

= 32

A for triangle = 1/2 * b * h

= 1/2 * 32

= 16

Hope this helps!

Answer:

72 / period  of time which is 2 = 36

36 / 3% = 36 / 0.03 = 1200

1200 is your answer

Now double check

1200 x 0.03 = 36

36 x 2 = 72

Hope this helps 1200 is your answer

Step-by-step explanation:

Answer:

40.5m^2

Step-by-step explanation:

Rhombus Formula:

A = pq/2

p = diagonal

q = diagonal

9x9/2 = 40.5m^2

Answer:

See Explanation

Step-by-step explanation:

[tex]

\because \sin\bigg(\frac{\pi}{2} + x\bigg)= \cos x\\

\&\: \sin (\pi - x) = \sin x\\\\

Now,

\frac{\sin\bigg(\frac{\pi}{2} + x\bigg)}{\sin (\pi - x)} = \cot x\\\\

LHS

= \frac{\sin\bigg(\frac{\pi}{2} + x\bigg)}{\sin (\pi - x)} \\\\

=\frac{\cos x}{sinx} \\\\

= \cot x\\\\

= RHS\\\\

Hence\: Proved

[/tex]

Answer:

That would be option C.

Step-by-step explanation:

I literally just took the quiz and got it right.

Answer:

213.52 cubic ft

Step-by-step explanation:

Diameter of pipe = 4ft

radius for circle is half of diameter

thus radius of pipe = 1/2 of 4ft = 2 ft

length of pipe = 17 feet

volume of cylinder is given by [tex]\pi r^2l[/tex]

where r is the radius and l is the length of cylinder

.

thus volume of pipe is calculated below using above values

[tex]volume \ of \ pipe = \pi r^2l\\volume \ of \ pipe = \3.14* 2^2*17 \\volume \ of \ pipe = 213.52[/tex]

volume of pipe is 213.52 cubic ft.

Answer:

[tex]14/3[/tex]

Step-by-step explanation:

[tex]4.66666666667[/tex]

[tex]0.66666666667=2/3[/tex]

[tex]4\frac{2}{3}[/tex]

[tex]14/3[/tex]

The fraction form of a number 4.66666666667 is,

⇒ 40 / 9

We have to given that;

A number is,

⇒ 4.66666666667

And, We can change it into fraction.

Let us assume that,

⇒ x = 4.66666666667  .. (i)

Multiply by 10;

⇒ 10x = 46.66666666667 .. (ii)

Subtract (ii) form (i);

⇒ 10x - x = 40

⇒ 9x = 40

⇒ x = 40 / 9

Thus, The fraction form of a number 4.66666666667 is,

⇒ 40 / 9

Learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ6

Answer:

1066

Step-by-step explanation:

Fill in the numbers for the letters                                

Solve in the parenthesis

Multiply

Subtract

Answer:

1066

Step-by-step explanation:

substitute;

2×2^2×3^3×5 - 7×2

2×4×27×5 - 7×2

multiply;

1080 - 14 = 1066.

Answer:

Hope this is correct.

Answer:

Step-by-step explanWhat i usually do for these problems is because pecent is out of 100, just subtract the percent from 100 percent and multiply that ammount to the original price, so 40 * (100%-30%)= 40 * 70% or 40 * 0.7, so the answer would be 28

Answer:

40

Step-by-step explanation:

Since the probability to choose a blue marble is 1/9, there must be 5 blue marbles since 45 * 1/9 = 5

Subtract 5 from 45 to get 40, since the rest of the marbles are red.

Answer:

KN = 72

Step-by-step explanation:

ΔKPL and ΔKNM are similar.

∠KLP = ∠KMN (Because PL and NM are parrallel)

∠KPL = ∠KNM (Because PL and NM are parrallel)

∠NKM = ∠PKL (Same angle, Common)

Now, Both the trianlges are similar just there is a size difference.

First we need to find scale factor, therefore:

[tex]\frac{KL}{LM}[/tex] = [tex]\frac{11}{55}[/tex] = [tex]\frac{1}{5}[/tex]

Now we know the scale factor is  [tex]\frac{1}{5}[/tex] therefore:

[tex]\frac{KP}{PN}[/tex] = [tex]\frac{PK}{60}[/tex]

To find PK we times 60 by [tex]\frac{1}{5}[/tex] therefore:

Answer is 12

Now KN is PK+ PN threfore:

KN is 72

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Thanks!

Answer:

101.956 cm

Step-by-step explanation:

You just have to do 7.18 times 14.2 to get the answer.

I hope this helped ;)

Answer:

101.956

Step-by-step explanation:

A=bh

7.18 x 14.2 = 101.956

to check your answer you would do the opposite 101.956/14.2 = 7.18 or 101.956/7.18 = 14.2

Answer:

c

Step-by-step explanation:

Answer:

the mean is 44 but i don't know the MAD

Step-by-step explanation:

To find the mean absolute deviation of the data, start by finding the mean of the data set.

The only thing i could tell you is the mean

Answer:d

Step-by-step explanation:

Answer:

Step-by-step explanation

Answer:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Step-by-step explanation:

hope this helps!

Answer:no

Step-by-step explanation:

All single digit prime numbers are not odd because 2 is a single digit but not odd

Answer:

C is the correct answer

Step-by-step explanation:

Already rode bike 18 miles.

m miles for 6 days.

16+6m

Answer:

its D

Step-by-step explanation:

Answer:

[tex]0.1[/tex]

Step-by-step explanation:

[tex]1-0.9[/tex]

[tex]=0.1[/tex]

Answer:

0.1

WHY DO I HAVE TO WRITE AT LEAST 20 CHARACTERS?!?!?!?!?!?!?!?! THIS IS MAD!!!

Answer:

V = 13 65⁄72 ft3

Step-by-step explanation:

V = 13⁄4 ft × 7⁄3 ft × 11⁄6 ft

V = 1,001⁄72 ft3

V = 13 65⁄72 ft3

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slope = difference in y / difference in x

Sub the values in:

slope = (-2- -2) / (7 - -5)

slope = 0 / 12

The slope is 0.

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Answer:

slope = 0

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 5, - 2) and (x₂, y₂ ) = (7, - 2)

m = [tex]\frac{-2+2}{7+5}[/tex] = [tex]\frac{0}{12}[/tex] = 0

Answer:

if a matrix and another are inverse of each other, then they will form something known as the identity matrix. The identity matrix is the one I posted in the picture above. So your answer would be B