multiply (2a+3)(2a-3)

Answer:

If you need what x equals its -16

x = -16

Explanation:

[tex]\rightarrow \sf \dfrac{1}{4} x - 6=-10[/tex]

collect variables

[tex]\rightarrow \sf \dfrac{1}{4} x =-10+6[/tex]

simplify

[tex]\rightarrow \sf \dfrac{1}{4} x =-4[/tex]

cross multiply

[tex]\rightarrow \sf x=-4*4[/tex]

final answer

[tex]\rightarrow \sf x=-16[/tex]

keeping in mind that regular polygon has 12 sides

[tex]\textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}ans~~ \begin{cases} a=apothem\\ n=\stackrel{number~of}{sides}\\ s=\stackrel{length~of}{a~side}\\[-0.5em] \hrulefill\\ A=214.14\\ a=8.3\\ n=12 \end{cases}\implies 214.14=\cfrac{1}{2}(8.3)(12)s \\\\\\ 214.14=49.8s\implies \cfrac{214.14}{49.8}=s\implies 4.3=s[/tex]

Answer:

16000280

Step-by-step explanation:

hope this helps.

Using the slope concept, it is found that the shuttle traveled 3.2 miles while Marion was watching.

The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.

Initially, the angle of elevation is of 16º, with an elevation of 1 mi, hence:

[tex]\tan{16^\circ} = \frac{1}{x_1}[/tex]

[tex]x_1 = \frac{1}{\tan{16^\circ}}[/tex]

[tex]x_1 = 3.5[/tex]

Then, at the end, the angle will be of 74º, with the elevation remaining constant, hence:

[tex]\tan{74^\circ} = \frac{1}{x_2}[/tex]

[tex]x_2 = \frac{1}{\tan{74^\circ}}[/tex]

[tex]x_2 = 0.3[/tex]

The distance is:

[tex]d = x_1 - x_2 = 3.5 - 0.3 = 3.2[/tex]

The shuttle traveled 3.2 miles while Marion was watching.

More can be learned about the slope concept at https://brainly.com/question/18090623

Answer: C) [tex]f^{-1}(x)=3-7x[/tex]

Step-by-step explanation:

When solving for an inverse of a function replace f(x) with x and replace the original x with y.

[tex]f(x) = \frac{3-x}{7} \\x=\frac{3-y}{7}[/tex]

Now solve for y

[tex]x=\frac{3-y}{7} \\(7)x=(\frac{3-y}{7}) (7)\\7x=3-y\\7x+y=3-y+y\\7x+y=3\\7x-7x+y=3-7x\\y=3-7x[/tex]

Replace y with the [tex]f^{-1}(x)[/tex]

Answer:

n

(

−

2

)

n

4

+

n

Step-by-step explanation:

Answer:

2(3-√13) is the answer

Step-by-step explanation:

Given that,

x = \frac{3 - \sqrt{13} }{2}

or, \frac{1}{x} = \frac{2}{3 - \sqrt{13} } (Taking reciprocal on both sides)

We know that,

(a + b)² = a² + b² + 2ab

or, (x \ + \frac{1} {x})^{2} = {x}^{2} + \frac{1}{x {}^{2} } + 2

or, {x}^{2} + \frac{1}{x {}^{2} } = (x \ + \frac{1}{x })^{2} - 2

Now,

or, {x}+ \frac{1}{x } = \frac{3 - \sqrt{13} }{2} + \frac{2}{3 - \sqrt{13} }

or, (3 - \sqrt{13 {})^{2} } + 4

2(3-√13) is the answer

If you didn't understand the frac etc... then I'll attach the f ans file.

Answer:

11$

Step-by-step explanation:

20% is equivalent to 0.20, so if we multiply that by 55, it will take off 20% of the price, giving us 11$.

0.20 × 55 = 11

Brainliest please?

Answer: ✨$75✨

Step-by-step explanation: ✨Well I added them I hope this helps✨

The points P, Q and R are collinear points on the number line

From the number line we have:

P = -0.6

Q = 0

The distance is calculated as:

PQ = Q - P

This gives

PQ = 0 - -0.6

Evaluate the difference

PQ = 0.6

Hence, the distance PQ is 0.6

From the number line we have:

R = 0.3

Q = 0

The distance is calculated as:

QR = R - Q

This gives

QR = 0.3 - 0

Evaluate the difference

QR = 0.3

Hence, the distance QR is 0.3

Read more about number lines at:

https://brainly.com/question/10851163

Answer:

The distance PQ is 0.6

The distance QR is 0.3

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Here's the solution :

[tex]\qquad \sf  \dashrightarrow \:(2 {x}^{2} + 5x - 7) + (3 - 4 {x}^{2} + 6x)[/tex]

[tex]\qquad \sf  \dashrightarrow \: 2{x}^{2} + 5x - 7 + 3 - 4 {x}^{2} + 6x[/tex]

[tex]\qquad \sf  \dashrightarrow \:2 {x}^{2} - 4 {x}^{2} + 5x + 6x - 7 + 3[/tex]

[tex]\qquad \sf  \dashrightarrow \: - 2 {x}^{2} + 11x - 4[/tex]

Answer:

87%

Step-by-step explanation:

435 students who voted for athlete               87

___________________________       =     ____         or 87%

          500 total students                                100

Answer:

15-5+38+8+595+2+8+6+9+7-5+29-8+8-5-5+2+8+3+9

Answer:

total 6

even 2, 4, 6

even or less than 4: 2, 4

p = 2/6 = 1/3

brainliest?

Answer:

133 degrees

Step-by-step explanation:

Supplementary angles equal 180.

the 1st angle is 180, so we do:
180-47
the answer is 133

24

[tex]Convert\ the\ unit\ for\ \frac{12in}{1ft}:\\ \downarrow\\ 24[/tex]

I hope this helps you

:)

Answer:

Exact Form:3√2+6

Decimal Form:

10.24264068…

Step-by-step explanation:

Answer:

45°

Step-by-step explanation:

if angle 3 is 135 the angle 2 is 45 and angle 2 is equal to angle 4 which is 45°

Answer:

Slope intercept form does not dictate whether or not a function is linear. What determines if a function is linear is if there is one independent variable, one dependent variable, and it makes a STRAIGHT line. This function is linear because there are only 2 variables and a horizontal line.

Levi could have determined that the graph was linear by checking the conditions stated above or graphing it out. Then, he would see that y = 2 is a straight horizontal line with an independent and dependent variable.

Hope this helps!

Answer:

The cost of one T-shirt is £4

The cost of a hat is £1

Step-by-step explanation:

Answer:

About 29 feet.

Step-by-step explanation:

tan 60 = 50 / h

h = 50/ tan 60

= 28.87 ft

Answer:

y = 7x

Step-by-step explanation:

Every y is greater 7 times than x. It means that everytime you multiply X by 7, it will be equal to y

Answer:

62.5 J

Step-by-step explanation:

Formula

Given :

Solving

The work done with the given force and distance is 62.5 Newton meter.

The basic concept of Time and Work is similar to that across all Arithmetic topics, i.e. the concept of Proportionality. Efficiency is inversely proportional to the Time taken when the amount of work done is constant.

Given that, force = 25 N weight and distance = 2.5 meters

We know that, work = Force×Distance

Here, work = 25×2.5

= 62.5 Newton meter

Therefore, the work done is 62.5 Newton meter.

To learn more about the time and work visit:

https://brainly.com/question/3854047.

#SPJ7

The value of the given function is as follows sin a = 3/5, cos a =4/5 and sec a = 5/4.

By right-angled triangle, we can find the trigonometric function from the sides of the triangle.

sin x = perpendicular/ hypotenuse

cos x = base/ hypotenuse

sec x = hypotenuse /base

From a triangle ABC of base 4, perpendicular 3, and hypotenuse 5, we get

sin a = perpendicular/ hypotenuse

        = 3/5

cos a = base/ hypotenuse

         = 4/5

sec a = hypotenuse /base

        = 5/4

Hence, the value of the given function is as follows sin a = 3/5, cos a =4/5 and sec a = 5/4.

Learn more about trigonometry;

https://brainly.com/question/26719838

Answer:

190 cm^2

Step-by-step explanation:

Top and Bottom = 2(3*10)=60cm

Sides = 2(5*10)=100

Front and Back =2(3*5)=30

total = 190

Answer:

mew

Step-by-step explanation:

Answer:

4:1

Step-by-step explanation:

Answer:

70x+91

Step-by-step explanation:

Answer:

161

Step-by-step explanation:

Break it into separate parts based on order of operations:

[(3 x (2^5)) + (13 x (-2))] + 7[8 - (4 - 9)] then simplify:

3 x 32 + (-26) + 7[8 + 5]

96 - 26 + 7(13)

70 + 91

161