i will give 100 points

Answer:

a = 2

Step-by-step explanation:

ax² + 5x + 2 = 0

a ( - 2 )² +5 ( - 2 ) + 2 = 0

4a = 8

a = 2

Answer:

equation: y = -3x + 10

Step-by-step explanation:

y = -3x + 11

comparing the formula, y = mx + b

We can determine the slope is -3 and y-intercept is 11.

if the line passes (2,4)

use the formula:

y - y1 = m(x - x1)

y - 4 = -3(x - 2)

y = -3x + 6 +4

y = -3x + 10

Answer:

A = 220 cm²

Step-by-step explanation:

Area of the rectangle = 11 x 18 = 198 cm²

Area of the triangle = 1/2 x (18 - 7) x (15 - 11) = 22 cm²

Therefore, area of the polygon = 198 + 22 = 220 cm²

Answer:

220 is The Correct Answer

Letter Choice (A)

Step-by-step explanation:

HERE'S MY PROOF AND MY RESEARCH

Area of a rectangle = width x height

Area of a triangle = 1/2 x base x height

Area of the rectangle = 11 x 18 = 198 cm²

Area of the triangle = 1/2 x (18 - 7) x (15 - 11) = 22 cm²

Therefore, area of the polygon = 198 + 22 = 220 cm²

Answer:

551

Step-by-step explanation:

500+6(4)+3(1)(5+4)

500+24+3(9)

524+27

551

Brainliest is much appreciated

Answer:

515, just evaluated it

Answer:

8n

Step-by-step explanation:

The third side  of a triangle whose perimeter is 17n + 11 and the other two sides are (5n + 6) and (4n + 6) is 8n

It can be deduced from the multiplication that the minimum number of water stations for this race will be 28.

Your information isn't complete as the figures aren't provided. Therefore, an overview will be given.

In this case, let's assume that there are 14 routes and that there will be a water station at the beginning and end of the routes.

From the scenario, if the racers are to run through all the routes, the number of water stations will be the value of 14 multiplied by 2. This will be:

= 14 × 2 = 28

In conclusion, the correct option is 28.

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Answer:

C the 3rd one

Step-by-step explanation:

that's the best explanation for me. I'm sorry if I'm wrong I wish you luck

Answer:

1/x+2

Step-by-step explanation:

1/x−2 + 4/4-X^2

​

Factor 4−x^2

1/x−2  +  4/(x−2)(−x−2)

To add or subtract expressions, expand them to make their denominators the same. Least common multiple of x−2 and (x−2)(−x−2) is (x−2)(−x−2).

Multiply :  1/x−2 TIMES −x−2/−x−2

−x−2/(x−2)(−x−2)  +  4/(x−2)(−x−2)

​Since  −x−2/(x−2)(−x−2) and  4/(x−2)(−x−2)  have the same denominator, add them by adding their numerators.

−x−2+4​/(x−2)(−x−2)

Combine like terms in −x−2+4.

−x+2/(x−2)(−x−2)

Extract the negative sign in −x+2.

−(x−2)/(x−2)(−x−2)

Cancel out x−2 in both numerator and denominator.

1/X-2

[tex]6 \times 27 \times 28 \times 23 \times 3 = 312984[/tex]

Answer:

312984

Step-by-step explanation:

To solve the equation 6 x 27 x 28 x 23 x 3, you can follow these steps:

Start by multiplying the first two numbers: 6 x 27 = 162.

Then multiply the result by the next number: 162 x 28 = 4536.

Continue multiplying by the next number: 4536 x 23 = 104328.

Finally, multiply by the last number: 104328 x 3 = 312984.

The final result is 312984

82+82*1.5=205

205+205*0.1=$225.50

Answer: 58.84

Step-by-step explanation: If you use a calculator that's the nroken down part.

The measure of the angle at which the poles meet at the top of the tepee is 180 degrees

Complementary angles are angles which sum is equals to 90 degrees. Two angles complement each other when there sum is 90 degrees.

The two poles meet at the top of the tepee.

The angle at which they meet is equals to twice the complement of the angles that the poles form with the ground. Therefore,

Complement of the angles that the poles form on the ground = 90°

Then the measure of the angle at which the poles meet at the top of the tepee is as follows:

Therefore, the measure of the angle at which the poles meet at the top of the tepee is 180 degrees

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6000

Step-by-step explanation:

[tex]16t ^{2} - 80t[/tex]

substitute t to 5(seconds)

[tex]16(5) ^{2} - 80(5) \\ 6400 - 400 \\ = 6000[/tex]

#a

[tex]\\ \tt\hookrightarrow 2(2x+1)=30[/tex]

[tex]\\ \tt\hookrightarrow 4x+2=30[/tex]

[tex]\\ \tt\hookrightarrow 4x=28[/tex]

[tex]\\ \tt\hookrightarrow x=7[/tex]

#b

[tex]\\ \tt\hookrightarrow 3(4x-3)=-12[/tex]

[tex]\\ \tt\hookrightarrow 12x-9=-12[/tex]

[tex]\\ \tt\hookrightarrow 12x=-3[/tex]

[tex]\\ \tt\hookrightarrow x=-1/4[/tex]

#c

[tex]\\ \tt\hookrightarrow 4(2x-7)=20[/tex]

[tex]\\ \tt\hookrightarrow 2x-7=5[/tex]

[tex]\\ \tt\hookrightarrow 2x=12[/tex]

[tex]\\ \tt\hookrightarrow x=6[/tex]

#d

[tex]\\ \tt\hookrightarrow 7(3x-4)=63[/tex]

[tex]\\ \tt\hookrightarrow 3x-4=9[/tex]

[tex]\\ \tt\hookrightarrow 3x=13[/tex]

[tex]\\ \tt\hookrightarrow x=13/3[/tex]

#e

[tex]\\ \tt\hookrightarrow 6(3x+3)=-72[/tex]

[tex]\\ \tt\hookrightarrow 18x+18=-72[/tex]

[tex]\\ \tt\hookrightarrow 18x=-90[/tex]

[tex]\\ \tt\hookrightarrow x=-5[/tex]

#f

[tex]\\ \tt\hookrightarrow -2(6x-3)=6[/tex]

[tex]\\ \tt\hookrightarrow 6x-3=-3[/tex]

[tex]\\ \tt\hookrightarrow 6x=0[/tex]

[tex]\\ \tt\hookrightarrow x=0[/tex]

The value of x is 7.

The value of x is -1/4.

The value of x is 7.

The value of x is 4 1/3.

The value of x is -5.

The value of x is 0.

2(2x + 1) = 30

The first step is to divide both sides of the equation by 2

2x + 1 = 15

Combine similar terms

2x = 15 - 1

2x = 14

x = 7

3(4x - 3) = -12

The first step is to divide both sides of the equation by 3

4X - 3 = -12 /3

4x - 3 = -4

Combine similar terms

4x = -4 + 3

4x = - 1

x = -1/4

4(2x - 7) = 20

The first step is to divide both sides of the equation by 4

2x - 7 = 5

Combine similar terms

2x = 5 + 7

2x = 12

x = 6

7(3x - 4) = 63

The first step is to divide both sides of the equation by 7

3x - 4 = 9

Combine similar terms

3x = 9 + 4

3x = 13

x = 4 1/3

6(3x + 3) = -72

The first step is to divide both sides of the equation by 6

3x + 3 = - 12

Combine similar terms

3x = -12 - 3

3x = -15

x = -5

-2(6x - 3) = 6

The first step is to divide both sides of the equation by -2

6x - 3 = -3

Combine similar terms

6x = -3 + 3

6x = 0

x = 0

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Answer:

378 Lemons

Step-by-step explanation:

Because you use 2 lemons for every cup, you first need to find how many lemons per pitcher by multiplying 9 by 2 to get 18, so 18 lemons per pitcher, then multiply that by 21 because that's the total amount of pitchers to get 378 lemons

Answer:

7 games

Step-by-step explanation:

22 / 3 =

7.33

Mckenzie can buy 7 games

Answer:

false

Step-by-step explanation:

the domain can be discrete or continuous

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

Explanation:

Check out the diagrams below.

We'll start with the left diagram (marked "before") which is a right triangle with the horizontal leg of 25 feet and hypotenuse 65 feet.

Use the pythagorean theorem to find the vertical side x.

a^2 + b^2 = c^2

25^2 + x^2 = 65^2

625 + x^2 = 4225

x^2 = 4225 - 625

x^2 = 3600

x = sqrt(3600)

x = 60

The top of the ladder is 60 feet high when placed against the wall in this configuration.

------------------

If the upper end is moved down 8 feet, then x-8 = 60-8 = 52 feet is the new height of the ladder. Refer to the "after" in the diagram below.

Like earlier, we'll use the pythagorean theorem to find the missing side.

a^2 + b^2 = c^2

y^2 + 52^2 = 65^2

y^2 + 2704 = 4225

y^2 = 4225 - 2704

y^2 = 1521

y = sqrt(1521)

y = 39

The horizontal distance from the ladder base to the wall is now 39 feet.

Earlier it was 25 feet, so it has increased by 39-25 = 14 feet.

Answer:

Y=-2X

Step-by-step explanation:

The equation of the line that passes through points (0, 0) and (-4, 8) is

y = -2x.

Option F is the correct answer.

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

To find the equation of a line given two points, we can use the point-slope form of the equation of a line:

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

where m is the slope of the line and (x_1, y_1) are the coordinates of one of the points on the line.

Given the coordinates (0, 0) and (-4, 8), we can find the slope of the line:

[tex]m = (y_2 - y_1) / (x_2 - x_1)[/tex]

= (8 - 0) / (-4 - 0)

= -2

Now that we have the slope of the line, we can choose one of the points to plug into the point-slope form.

Let's use (0, 0):

[tex]y - y_1 = m(x - x_1)\\y - 0 = -2(x - 0)\\y = -2x[/tex]

Therefore,

The equation of the line that passes through points (0, 0) and (-4, 8) is

y = -2x.

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#SPJ7

Answer:

The 7 is the answer dear 7 is greater

Answer:

7 of course.

Step-by-step explanation:

Anything negative will always be smaller then a non-negative. It's like having a friend younger then you that will never be older. Could i get brainliest :D

Answer:

Step-by-step explanation:

Given equation:

Solve for variables:

Answers:

Answer:

1:30

Step-by-step explanation:

45 min = 15 min + 30 min

15 min before 2:15 is 2:00.

30 min before 2:00 is 1:30.

Answer:

3 cups

Step-by-step explanation:

[tex]36 : 24 = 4.5 : x[/tex]

where [tex]x[/tex] is the amount of flour he should use

Therefore,

[tex]\frac{36}{24} = \frac{4.5}{x}[/tex]

Cross multiply:  [tex]36x = 4.5 \times 24[/tex]

[tex]\implies 36x = 108[/tex]

Divide both sides by 36:  [tex]x = 108 \div 36 = 3[/tex]

Therefore, he should use 3 cups of flour

Answer:

The pool manager pay for each item is $60.6.

Step-by-step explanation:

Given:

A pool manager balances the ph level of a pool.

The price of a bucket of chlorine tablets is $90, and the price of a ph test kit is $11.

The manager uses a coupon that applies a 40% discount to the total cost of the two items.

Now, to find the money the pool manager pay for each item.

The price of a bucket of  chlorine tablets is = $90.

The price of a ph test kit = $11.

So, to get the total price of both items we add both prices:

Total cost of two items = $101.

As, given a coupon that applies a 40% discount to the total cost of the two items.

Now, to get the total cost by applying discount:

Thus, the pool manager pay = $60.6.

Therefore, the pool manager pay for each item is $60.6.

Step-by-step explanation:

take ∆PRT

angle prt = 30°(||sides, traversal, opp angles)

angle ptr = 45+y(|| sides, opp angles)

x+30+45+y = 180

x+y = 180-75= 105

x= 105-y

take triangle zrt

angle zrt =30(parallel sides and traversal with opp angles)

angle ztr = y(parallel lines)

30+y+w = 180

w = 150-y

angle pzt+azr = 360-300+2y=60+2y

pzt= 30+y

triangle pza

30+y + 45+30= 180

y = 180-105=75

w = 75

x=30

Polynomials consist of both indeterminates and coefficients. The polynomial that is been represented by the algebra tiles is 2x²-4x -6.

A polynomial consists of both indeterminates and coefficients and involves mathematical operations such as addition, subtraction, multiplication, and division.

In order to find the polynomial that is been represented by the tiles, we will simply, calculate the number of tiles for each variable,

As we can see in the image,

Number of tiles labeled as x² = 2

Number of tiles labeled as -x = 4

Number of tiles labeled '-' = 6

therefore, the polynomial can be written as 2x²-4x -6.

Hence, the polynomial that is been represented by the algebra tiles is 2x²-4x -6.

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Answer:

A. 2x2 – 4x – 6

Step-by-step explanation:

Answer:

[tex]r= 5in[/tex]

Step-by-step explanation:

[tex]\frac{500\pi }{3} =\frac{4}{3} \pi *r^{3} \\r^{3} =\frac{500}{3} *\frac{3}{4} \\r^{3}=125\\r= 5 in[/tex]

{ Bring the number into the equation }