PLS HELP HURRY NEED rigGHT ANWSER

In quadratic equation, x = 1/7, -4 are the values of x will the function f(x) .

What in mathematics is a quadratic equation?

A quadratic equation is a second-order polynomial equation in one variable using the formula x = ax2 + bx + c = 0 and a 0. The fundamental theorem of algebra ensures that it has at least one solution because it is a second-order polynomial problem. 

f(x) = 7x² + 27x - 4

       = 7x² + ( 28 - 1 )x - 4

       = 7x²  + 28x - x - 4

        = 7x( x + 4) -1( x + 4 )

         = (7x - 1 ) ( x + 4)

     7x - 1 = 0

        x = 1/7

   x + 4 = 0

        x = -4

Learn more about quadratic equation

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Answer:

12:50

Step-by-step explanation:

The 30°-60°-90° triangle is labeled with the correct side length ratio is shown in the attached image.

The angle between sides with lengths 1 and 2 is 60 degrees.

The angle between sides with lengths 2 and [tex]\sqrt{3}[/tex]  is 30 degrees.

A right triangle is shown.

The hypotenuse has a length of 2.

The lengths of the other 2 sides are 1 and [tex]\sqrt{3}[/tex].

The angle between sides with lengths 1 and 2 is 60 degrees.

The angle between sides with lengths 2 and [tex]\sqrt{3}[/tex]  is 30 degrees.

The two angles, other than the angle of 90degree in a right-angle triangle, are always acute angles.

The largest side of a right-angled triangle is known as the Hypotenuse.

The 30°-60°-90° triangle is labeled with the correct side length ratio is;

It is a triangle where the angles are always 30, 60, and 90. As one angle is 90, this triangle is always a right triangle.

Thus, these angles form a right-angled triangle.

To know more about the right triangle click the link given below.

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Answer:

answer is A on edge

Step-by-step explanation:

the angle all the way to the left

Answer:

i) 8

ii) yes 400 is a value in the sequence as the nth term would be 200 for that, 400 is also divisible by 2, and as 2 is the coefficient of n, 400 can be a value in the sequence.

Step-by-step explanation:

for n as term number:

n = 4

2n = 8

i) 8 is the fourth term

for n as unknown:

2n = 400

400/2 = n

200 = n

ii) yes 400 is a value in the sequence as the nth term would be 200 for that, 400 is also divisible by 2, and as 2 is the coefficient of n, 400 can be a value in the sequence.

Answer:

(1, 3 )

Step-by-step explanation:

The solution is at the point of intersection of the 2 lines

The lines intersect at (1, 3 ) , then

solution is (1, 3 )

Answer:

For example, if the initial price was $60, you would calculate 60 x.11= 6.60, then 60-6.60.

Step-by-step explanation:

Hope this helps you!!!!!!!! :D

x + 3 = 8

OR

4x - 4 = 16

hope this helps!

Step-by-step explanation:

If f(x) = 2 is the thing that we need to meet as a criterion, then what should we do to x?

simply equate these two.

f(x) = 2 = 13x + 4

2 = 13x + 4

13x = 2 - 4

x = -2 / 14.

Answer:

I think the answer is B

Step-by-step explanation:

She divided the numbers wrong

Answer:

√500

Step-by-step explanation:

Answer:

3.588

Step-by-step explanation:

I hope it'll help you...

Answer:

5 ft

Step-by-step explanation:

Use Pyth theorem

3^2 + b^2 = 6^2

9 + b^2 = 36

b^2 = 25

b = 5

Plz mark brainliest

Answer:  4(3+2)=44

Distribute: 4(3x+2)=44

                   12x+8=44

Subtract 8 from both sides of the equation: 12x+8=44

                                                                       12x+8-8=44-8

Simplify: Subtract the number: 12x=36

Step-by-step explanation:

Hope this helps you!! :D

Answer:

x = 3

Step-by-step explanation:

Given equation,

→ 4(3x + 2) = 44

Now the value of x will be,

→ 4(3x + 2) = 44

→ 4(3x) + 4(2) = 44

→ 12x + 8 = 44

→ 12x = 44 - 8

→ 12x = 36

→ x = 36/12

→ [ x = 3 ]

Hence, the value of x is 3.

Answer:

Step-by-step explanation:

2b+8-5b+3=-13+8b-9

Combine like terms

-3b+11=8b-22

Subtract 11 from both sides:

-3b+11-11=8b-22-11

-3b=8b-33

Subtract 8b from both sides:

-3b-8b=8b-33-8b

-11b=-33

Divide both sides by -11:

-11b/-11=-33/-11

b=3

Hope it helps!

Answer:

[tex]A_{total} = 132\ ft^2[/tex]

Step-by-step explanation:

Step 1:  Determine the area of the rectangle

[tex]A = l * w[/tex]

[tex]A = 9\ ft * 11\ ft[/tex]

[tex]A = 99\ ft^2[/tex]

Step 2:  Determine the area of the triangles

[tex]A = \frac{h * b}{2}[/tex]

[tex]A=\frac{(15\ ft - 9\ ft)*(11\ ft / 2)}{2}[/tex]

[tex]A=\frac{6\ ft * 5.5\ ft}{2}[/tex]

[tex]A = 16.5\ ft^2[/tex]

Since we found only one of the right triangles we need to multiply the area that we got by 2 to get the total triangle area.

[tex]A = 16.5\ ft^2 * 2[/tex]

[tex]A = 33\ ft^2[/tex]

Step 3:  Determine the total area

[tex]A_{total} = 99\ ft^2 + 33\ ft^2[/tex]

[tex]A_{total} = 132\ ft^2[/tex]

Answer:  [tex]A_{total} = 132\ ft^2[/tex]

Answer:

The left side would point down (quadrant 3)

Step-by-step explanation:

Since the polynomial is negative, the function would point downwards.

Answer:

333 coins

Step-by-step explanation:

Simply multiply 37% by the total number of coins, 900:

37%(900)

= (37/100)(900)

= (900 / 100) * 37

= 9 * 37

= 333 coins

Also, optionally check this by dividing 333 by 900 to get 0.37:

333 ÷ 900 = 0.37 = 37%

Answer:

Step-by-step explanation:

You need to set up a proportion

Let x = NK

7/13 = x/56    Notice that the longest side of the small trapezoid is the denominator of the fraction  on the left. That means that the longest side of the large trapezoid must also be the denominator of that fraction on the right.

Cross multiply

13x = 7*56                Combine the right

13x = 392                 Divide by 13

x = 392/13

x = 30.15

NK = 30.15

Answer:

30.2

Step-by-step explanation:

IJ is proportional to MN, which would give us 13/56. Next, JG is proportional to NK, which would give us 7/x. So, 13/56 = 7/x, 13x = 392, x = 30.15, which rounds to 30.2

Answer:

14s^4-7s^2+15

Step-by-step explanation:

At the beginning the only bracket that is changing is the 3rd one because of the minus. (12s^4-6s^2+4s)+(6s^4-4s+27)-4s^4+s^2+12 then open the rest of the brackets. And start calculating.i will just to show you which ones u calculate together. (I'll separate the numbers depending on what they're squared to).

12s^4+6s^4-4s^4=14s^4

-6s^2-s^2=7s^2

27-12=15

All together is 14s^4-7s^2+15

Answer:

profit = 129.63% (to the nearest hundredth) as a percent of the price the store paid for the book

Step-by-step explanation:

Use the percentage change formula:

percent change = [ (difference between the initial value and the final value) ÷ initial value] x 100

= [ (6.20 - 2.70) ÷ 2.70 ] x 100

= [ 3.5 ÷ 2.70 ] x 100

= 37/27  x 100

= 129.6296296...

= 129.63% (to the nearest hundredth)

Check the picture below.

Answer:

60 km

Step-by-step explanation:

a)  A bearing is an angle, measured clockwise from the north direction.

(They are always given in 3 figures).

Therefore, the bearing of B from A is 090°

b)  Method 1

Jafar drives from A to B = 2.4cm

As 1 cm represents 200 km, then 2.4 x 200 = 480 km

Kenzi drives from B to C = 1.2 + 1.5 = 2.7 cm

As 1 cm represents 200 km, then 2.7 x 200 = 540 km

To calculate how much further Kenzi drives that Jafar, subtract the distance Jafar drives from the distance Kenzi drives:

540 - 480 = 60 km

Method 2

The other way to do this is to calculate the difference in distance in centimeters and then convert the answer to kilometres by multiplying it by 200:

Jafar = 2.4 cm

Kenzi = 1.2 + 1.5 = 2.7 cm

Difference = 2.7 - 2.4 = 0.3 cm

Convert to km = 0.3 x 200 = 60 km

Answer:

To find one tenth of a number, simply divide it by 10 . The easiest way to do that is to : cross off a zero at the end if there is one. move the decimal one place to the left.

x=y-0.5y

simplify

x=0.5y

times two on both side

2x=y

y=2x

only in first quadrant because ticket cannot be negative

Answer:

50.26 in

Step-by-step explanation:

First you need the circumference of half of a circle.

Circumference = diameter x pi. The radius is 9, so the diameter is 18. 18 * 3.14 = 56.52. But you need half of that, so 56.52 / 2 = 28.26

Then add the other 3 sides

28.26 + 5 + 12 + 5 = 50.26

Answer:

82.615 km

Step-by-step explanation:

100% - 42.5% = 57.5 - 37% = 20.5% by bus

403 km * 20.5 (0.205) = 82.615

Answer:

the slope is -2

Step-by-step explanation:

(1,0) (0,2)

[tex] \frac{y2 - y1}{x2 - x1} [/tex]

[tex] \frac{2 - 0}{0 - 1} = - \frac{2}{ 1} = -2/tex]

Answer:

65.1

Step-by-step explanation:

FG corresponds to IJ, and EF corresponds to HI. So, 13/47 = 18/x. 13x = 846, x= 65.08, which rounds to 65.1.

Answer: Approximately 8 minutes and 20 seconds

This is equivalent to 500 seconds.

==============================================

Explanation:

Any electromagnetic wave travels at the speed of light in a vacuum.

The speed of light is about 300,000 km per second.

time = distance/speed

time = (150,000,000 km)/(300,000 km per second)

time = 500 seconds

It takes about 500 seconds for an electromagnetic wave to go from the sun to the earth.

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Divide by 60 to find the minutes and seconds

500/60 = 8 remainder 20

500 seconds = 8 minutes & 20 seconds