please help i will mark branliest

Diameter of a circle = 28 m

Then, radius of the circle will be :

[tex] = \tt \frac{diameter}{2} [/tex]

[tex] =\tt \frac{28}{2} [/tex]

[tex] = \tt14 \: m[/tex]

Thus, the radius of this circle = 14 m

Area of circle :

[tex] = \tt\pi {} {r}^{2} [/tex]

[tex] =\tt 3.14 \times 14 \times 14[/tex]

[tex] = \tt3.14 \times 196[/tex]

[tex] = \tt615.44 \: {m}^{2} [/tex]

Thus, the area of this circle = 615.44 m²

Circumference of circle :

[tex] = \tt2\pi r[/tex]

[tex] =\tt 2 \times 3.14 \times 14[/tex]

[tex] = \tt87.92 \: m[/tex]

The circumference of this circle = 87.92 m

Therefore, the area of this circle = 615.44m² and the circumference of this circle = 87.92m

Answer:

I know you don't need hep any more but here is for the people that do!

Step-by-step explanation:

Answer:

your answer is 73 and im positive kinda

Answer:

the answer is C 4.4 ft hope it helps

Step-by-step explanation:

Given:

The system of equations:

[tex]y=2x+4[/tex]

[tex]y=-\dfrac{10}{3}x+\dfrac{76}{3}[/tex]

To find:

The sum of the x- and y-values in the solution to the system of equations.

Solution:

We have,

[tex]y=2x+4[/tex]                ...(i)

[tex]y=-\dfrac{10}{3}x+\dfrac{76}{3}[/tex]                  ...(ii)

From (i) and (ii), we get

[tex]2x+4=-\dfrac{10}{3}x+\dfrac{76}{3}[/tex]

[tex]2x+\dfrac{10}{3}x=\dfrac{76}{3}-4[/tex]

[tex]\dfrac{6x+10x}{3}=\dfrac{76-12}{3}[/tex]

Multiply both sides by 3.

[tex]16x=64[/tex]

Divide both sides by 16.

[tex]x=\dfrac{64}{16}[/tex]

[tex]x=4[/tex]

Putting x=4 in (i), we get

[tex]y=2(4)+4[/tex]

[tex]y=8+4[/tex]

[tex]y=12[/tex]

The solution of system of equations is (4,12).

[tex]x+y=4+12[/tex]

[tex]x+y=16[/tex]

Therefore, the sum of the x- and y-values in the solution to the system of equations is 16.

Answer:

3 x 3 = 9

Step-by-step explanation:

Answer:

D. 5(z/x)^10

Step-by-step explanation:

15/3 = 5

z^-5 gets moved to the top, and made positive z^5

x^-3 gets moved to the bottom, and made positive x^3

z^5 + z^5 = z^10

x^7 + x^3 = x^10

5(z/x)^10

Answer:

n = 11/3

Step-by-step explanation:

n = certain number

6n - 1 = 21

6n = 22

n = 22/6 or 11/3

Answer:

103.5

Step-by-step explanation:

The area for the trapezoid is Area = ((a+b)/2)h where a = base 1, b = base 2, and h = height. 15 + 8= 23, and divided by 2 is 11.5. 11.5 x 9 = 103.5. Hope it helps.

Answer:

4

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

To check proportionality :

35 α 1000

35 = 1000k

k = constant of proportionality ;

Divide both sides by 1000 to obtain k

35 / 1000 = 1000k / 1000

0.035 = k

For the ratio Given :

Ratio of 7 parts of salt and 200 parts of water

7 : 200

7 / 200

= 0.035

Since,

k = 0.035 ; 7 / 200 = 0.035

Hence, a proportional relationship exists.

Answer:

A. Right angle  -- if you multiply the slopes of 2 intersecting lines and you "-1" then the lines are perpendicular - in this case the line in quadrant 3 has a slope of "1" and the line in quadrant 4 has a slope of "-1", hence their product is "-1" and the angles formed at the intersection of the lines are right angles.

Step-by-step explanation:

Answer:

128 : 1

Step-by-step explanation:

Given that:

The length of an alligator = 12.8 feet.

The length of its replica toy = 3 2/5 inches = 1.2 inches

Since;

1 foot = 12 inches

Then the scale used is:

(12.8 × 12 ) inches = 1.2 inches

153.6 inches = 1.2 inches

Thus, the scale used is 128 : 1

Answer:

$15.80

Step-by-step explanation:

20% × 79 = 15.8

Answer:

Step-by-step explanation:

2x2 + 7x - 30

2x2 + 12x - 5x - 30

2x( x + 6) - 5( x + 6)

(x + 6) and (2x - 5) are the factors

Answer:

K < 56

Step-by-step explanation:

"At most" means that she is 56 inches or less. Therefore, the inequality sign "less than or equal to" would work best in the context of the problem.

Answer:

Q30-A, C  

Step-by-step explanation:

A) False, If the parallelogram VJHO was a rhombus, angle V wouldn't be supplementary to angle O

B) True, all opposite sides of a parallelogram parallel

C) False, the same reason as A

D) True, opposite sides of a parallelogram congruent

Q25-

angle BCA = 60 degrees

angle CAB = 27 degrees

angle BCT = 29 degrees

angle BMC = 58 degrees

Answer:

1. 2 and 4

2. BCA = 60

CAB = 27

BCT = 29

BMC = 58

Answer:

-3/5

Step-by-step explanation:

Answer:

(-5,2) (-7,0)

Step-by-step explanation:

Answer:

32 quarts

Step-by-step explanation:

Amount of red paint used [tex]r=1\dfrac{1}{2}=\dfrac{3}{2}\ \text{quarts}[/tex]

Amount of white paint used [tex]w=12\ \text{quarts}[/tex]

Ratio of red paint to white paint is

[tex]\dfrac{r}{w}=\dfrac{\dfrac{3}{2}}{12}=\dfrac{1}{8}[/tex]

Amount of red paint used later is [tex]4\ \text{quarts}[/tex]

[tex]\dfrac{r}{w}=\dfrac{1}{8}\\\Rightarrow \dfrac{4}{w}=\dfrac{1}{8}\\\Rightarrow w=8\times 4=32\ \text{quarts}[/tex]

The amount of white paint used is 32 quarts.

Answer:

yes, (0,0) is a solution for the system of equations.

Step-by-step explanation:

y < -x + 3 ,we would then plug in the ordered pair which changes that equation to 0 < 0 +3 (which is just 0 < 3) and that is true.

Then we plug in the ordered pair for the second equation, which changes it to  0 < 2 or 0 < 0 + 2.

Now, since the inequalities are true, the ordered pair works for the system.

(sorry if that was confusing)

Answer:

Lexi can read 60 pages in 36 minutes.

Step-by-step explanation:

Answer:

9.5m

Step-by-step explanation:

Answer:

9.5 is the height

Step-by-step explanation:

I just looked it up with the term "find height of triangle with base and area"

Answer : add 1 add 6

Step-by-step explanation:

Answer:

is this a statement

Step-by-step explanation:

Answer:

(0, 9)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Systems

y = -2x + 9

y = 3x + 9

Step 2: Solve for x

Substitution

Step 3: Solve for y