30a^3+36a^2b+25ab^2+30b^3

The central angle in radians is given by θ = s/r, where s is the arc length and r is the radius of the circle

For given question,

we need to find the radian measure of the central angle of a circle of radius r.

The central angle intercepts an arc of length s.

Let θ be the central angle in radians.

We know that the arc length of circle of radius r is,

s = r × θ

where s is the arc length

r is the radius of the circle

θ is the central angle measured in radians

From above equation,

we have, θ = s ÷ r

Therefore, the central angle in radians is given by θ = s/r, where s is the arc length and r is the radius of the circle

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The equation that represents a function is (A) y = -2x + 1.

A Function is defined as an equation for which any "x" we substitute in the equation will give only one output such as "y"

it is denoted by y=f(x).

In the given question

Option (A)

y=-2x+1

Yes the given equation is a function ,

because when we substitute a value in x ( let x=2) it gives only a single output (y=-3).

Hence , y=-2x+1 is a function .

Option (B)

x=4

No, it is not a function as ,

x=4 is a vertical line parallel to y axis ,

we know that for a function every value of x will have exactly one y .

For x=4 , y can 0 , -9 , 6 .

Hence , x=4 is not a function.

Option (C)

x=y²-1

No.  it is not a function ,

we know that for a function every value of x will have exactly one y .

For x=0 , y=+1,-1  .

Hence , x=y²-1 is not a function .

Option (D)

y²-x​

No , it is not a function

As y²-x​ do not have an equal to sign "=" , it cannot be considered as an equation.

Hence , y²-x​ is not a function .

Therefore , Only y = -2x + 1 represents a function , the correct option is (A) y = -2x + 1

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Answer: 7 and 8

Step-by-step explanation:

Square root and squared cancel out

Answer:

a=7

b=32

Step-by-step explanation:

The first one (a) is 7 because if you square a square root, you get the number inside the root. Also, technically a square root has an exponent of (1/2) so when you have a power-to-a-power (power rule of exponents) you multiply the exponents. So ([tex]7^{1/2}[/tex])^2 is 7.

For (b) you have to take it in two parts. Square the square root and you get 2. Square the 4 in front, you get 16. Multiply those two numbers (16 and 2) together and you get 32.

Edit: Check on your calculator, you get the same answers I got! :)

Answer:

a. y = 3

b. x = 1

c. y-intercept = 5

d. x-intercept = -2.5

e. 2

f. y = 2x + 5

Step-by-step explanation:

Based on the graph, we can see the point where x is -1, y = 3.

Based on the graph, we can see the point where y = 7, x = 1.

Based on the graph, we can see the y-intercept is 5.

Based on the graph, we can see the x-intercept is -2.5.

To calculate the slope of the line, I will be using the points (-1, 3) and (0, 5).

Slope = [tex]\frac{rise}{run}[/tex]

           = [tex]\frac{5-3}{0-(-1)}[/tex]

           = [tex]\frac{2}{1}[/tex]

           = 2

The equation of a line is: y = mx + c where m is the slope and c is the y-intercept. Thus, the equation of the line in this case is: y = 2x + 5

Answer: 228

Step-by-step explanation:

10% of 380 is 38.

The winning candidate got 60% of the votes.

So, we will multiply 38 by 6.

38 x 6 = 228

The answer to the question is 228.

Answer:

......................

Answer:

3085

113

as a fraction!

Answer:

6/r

Step-by-step explanation:

Quotient is the result of a division.

Answer: 6/r

60 x 14 = 840

$10 each day

to make $860, it would take 14 weeks and 2 days.

Answer:

Bobby Abreu (0.301) < Jack Wilson (0.308) < Melvin Mora (0.34)

Step-by-step explanation:

Jack Wilson = 0.308

Melvin Mora's average = Number of hits / Total number = 17 / 50 = 0.34

Bobby Abreu = 30.1% = 30.1 / 100 = 0.301

In order of least to greatest;

After coomparing all three batters;

Bobby Abreu (0.301) < Jack Wilson (0.308) < Melvin Mora (0.34)

Answer:

she is faster

Step-by-step explanation:

first find how long sister takes to walk 1 mile - if she walks 2 miles in 1 hour she'll take less time to walk 1 mile, 2/2 = 1 mile

and 60mins/2 = 30mins

so sister walks 1 mile in 30 minutes and she walks 1 mile in 20 mins so she is faster by 10 mins

hope this helps :)

Answer: $21000

Step-by-step explanation:

By uwing option A, the salesperson will make (40 × $21) = $840.

Let the amount of sales that is needed for the week to be thesame as option A be x. Therefore,

4% of x = $840

4% × x = $840

0.04x = $840

x = $840/0.04

x= $21000

The salesperson need to sell $21,000 worth of sales

Answer:

24, 555 are answer of this question.

Step-by-step explanation:

2+4=6 (3×8)

5+5+5=15 (15 is divisible by 3 ).

Answer:

B and D

Step-by-step explanation:

24 divided by 3 equals 8

555 divided by 3 equals 185

3 does not divide equally into 24 or 67

HOPE THIS HELPS <33333

-Silver

Answer:

the answer is 6

Step-by-step explanation:

Answer:

B = 119! The answer is 119!

Step-by-step explanation:  

Answer:

x² + y² = 2

Step-by-step explanation:

Given

x + 2y = 3 → (1)

2x + y = 3 → (2)

Rearrange (2) expressing y in terms of x by subtracting 2x from both sides

y = 3 - 2x → (3)

Substitute y = 3 - 2x into (1)

x + 2(3 - 2x) = 3 ← distribute and simplify left side

x + 6 - 4x = 3

- 3x + 6 = 3 ( subtract 6 from both sides )

- 3x = - 3 ( divide both sides by - 3 )

x = 1

Substitute x = 1 into (3) and evaluate for y

y = 3 - 2(1) = 3 - 2 = 1

Thus

x² + y² = 1² + 1² = 1 + 1 = 2

Answer:

31.2

Step-by-step explanation:

it's just basic division

Step-by-step explanation:

Headband-23.665 inches

wristband-8.51 inches

Answer:

ASA

Step-by-step explanation:

Question 1 below on day 1 city A

on day 3 city B

Question 3 city A has more crimes

for question 2 i need to know the options

Answer:

X = 18           Y= 30

Step-by-step explanation:

Since you have to do times two to X and Y.

Mark as brainliest plz

Answer: y=30 x=18

Step-by-step explanation:

16x2=32

so everything else must be multiplied by 2 bc the shape is 2 times bigger according to 16 and 32

15x2=30

so 30=y

9x2=18

so 18=x

Answer:

263 ft

Step-by-step explanation

Answer:

Infinite solutions

Step-by-step explanation:

4x + 8 = 4x +8

Both sides are exactly the same, so there are infinite solutions.

Answer:

D

Step-by-step explanation:

P=2(L + B)

P = 2L + 2B

P - 2B = 2L

OR P - 2B BY 2 = L

THEREFORE, D.

Answer:

D.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

I am 99.9% certain that this answer is A. It asks the Difference between point A and B. Difference = subtraction. So, C and D is automatically out of the Picture. I calculated A and A makes the most sense.

Answer:  15

Step-by-step explanation:

(r+1)th term of [tex](a+b)^n[/tex] is given by:-

[tex]T_{r+1}=\ ^nC_r(a)^{n-r}b^r[/tex]

For [tex](a+b)^6[/tex] , n= 6

[tex]T_3=T_{2+1}=\ ^6C_2(a)^{6-2}(b)^2\\\\[/tex]

[tex]=\ \dfrac{6!}{4!2!}a^4b^2\ \ \ [^nC_r=\dfrac{n!}{r!(n-r)!}]\\\\=\dfrac{6\times5\times4!}{4!\times2}a^4b^2\\\\=3\times5a^4b^2\\\\ =15a^4b^2[/tex]

Hence, the coefficient of the third term in the binomial expansion of  [tex](a+b)^6[/tex] is 15.

Answer:

15

Step-by-step explanation:

Answer:Y=X+7

Step-by-step explanation: