3. A circular running track is 14 mile long. Elena runs on this track, completing each lap in 120of an hour. What is Elena’s running speed? Include the unit of measure. [3 points]

Answer:

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

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: $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: 64 lbs

Step-by-step explanation:

I divided 56/140 and got 0.4. Then multiplied 0.4 by 160 and got 64. SOunds about right to me.

You can double check by multipling 0.4 by 140 and you get 56.

Answer:

64lb

Step-by-step explanation:

i mean i got it right on my quiz on egde 2020

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:

61 degrees

Step-by-step explanation:

180 - 58 = 122

Since both sides are congruent, 122/2 = 61

Answer:

61

Step-by-step explanation:

Since ED and EF are congruent, Angle D = Angle F meaning angle F is also x degrees.

From here, we can use the total sum of angles in a triangle = 180 to calculate x:

180 = 58 + x + x

180 = 58 +2x

122 = 2x

x= 61 degrees

Answer:

31.2

Step-by-step explanation:

it's just basic division

Answer:

6/r

Step-by-step explanation:

Quotient is the result of a division.

Answer: 6/r

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:

138

Step-by-step explanation:

Answer:

263 ft

Step-by-step explanation

Answer:

He is correct

Step-by-step explanation:

Put the first equation into y = mx + b by isolating y:

4x + 2y = 10

2y = -4x + 10

Divide each side by 2:

y = -2x + 5

So, putting the first equation into y = mx + b got us the same equation as the second one, y = -2x + 5.

Since they are the same, the equations are equivalent.

Atticus is correct.

Answer:

ASA

Step-by-step explanation:

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:

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:

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:

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:

3085

113

as a fraction!

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:

x = 19

<B = 125°

Step-by-step explanation:

The sum f angle <D and angle <A is equal to 180° because these angles are supplementary

75° + 5x + 10 = 180° add like terms

85 + 5x = 180 subtract 85 from both sides

5x = 95 divide both sides by 5

x = 19

Same rule goes for angle <C and angle <B

<B + 55° = 180 subtract 55 from both sides

<B = 125°

Answer:Y=X+7

Step-by-step explanation:

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

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

Learn more about the arc length here:

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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:

B = 119! The answer is 119!

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.