15+7r+r(r-3)-r^2 simplified

Answer:

30

Step-by-step explanation:

6*5= 30

3*10=30

5*6=30

Recall that the tangent of an angle is equal to the ratio of the opposite over adjacent sides

tan(angle) = opposite/adjacent

For reference angle Y, the opposite side is XZ = 6 and the adjacent side is XY = 7, so,

tan(Y) = XZ/XY = 6/7

For tan(Z), things will swap. The opposite side is now XY = 7 and the adjacent side is now XZ = 6

tan(Z) = XY/XZ = 7/6

We do not use the hypotenuse sqrt(85) at all in this problem because the tangent ratio does not involve the hypotenuse.

Answer:5.6

Step-by-step explanation:

Answer:

5.6

Step-by-step explanation:

[tex] \frac{5 + 7 + 2 + 9 + 5}{5} = \frac{28}{5} = 5.6[/tex]

Answer:

the greatest surface is A

Step-by-step explanation:

Answer:

answer is A have a great day

Step-by-step explanation:

Answer:

5/6

Step-by-step explanation:

convert 2/3 to 4/6 by multiplying by 2

4/6 + 1/6 = 5/6

Answer:

The answer is [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

You need to find the GCF which is 6 so multiply the 2/3 to become 4/6 from then you can add the numerators.

Answer:

(x+5) (x+3)

Step-by-step explanation:

x^2+8x+15

What two numbers multiply to 15 and add to 8

5*3 = 15

5+3 = 8

(x+5) (x+3)

Answer:

The answer is the bottom left hand corner.

Step-by-step explanation:

Answer:

y=$25.50w+$217

w=10 weeks

$25.5(10)+$217

$255+$217

$472=y

Answer:

7/4 or 1.75 or 1  3/4

Step-by-step explanation:

Answer:

190

Step-by-step explanation:

PLEASE MARK BRAINLY

The satellite's speed is approximately 45,216 kilometers per hour.

Calculating the Satellite's Speed

To find the satellite's speed in kilometers per hour, we can follow these steps:

1. Calculate the total distance traveled in one orbit:

The satellite's orbital distance is the circumference of its circular orbit around the Earth.

Circumference = 2 * π * radius

where:

π (pi) is a mathematical constant approximately equal to 3.14159

radius = distance from the satellite to the Earth's center = 6400 km + 2000 km = 8400 km

2. Calculate the orbital period in seconds:

We know the orbital period is 12 hours, but we need it in seconds for our calculations.

Convert hours to seconds: 12 hours * 60 minutes/hour * 60 seconds/minute = 43,200 seconds

3. Calculate the speed:

Speed = distance / time

Speed = total distance / orbital period

Speed = (2 * π * radius) / orbital period

Speed = (2 * 3.14159 * 8400 km) / 43,200 seconds

Speed ≈ 12.56 km/s

4. Convert speed to kilometers per hour:

Speed = 12.56 km/s * 3600 seconds/hour = 45,216 km/hr

Therefore, the satellite's speed is approximately 45,216 kilometers per hour.


The probable question can be: A satellite has recently been placed in a nearby circular orbit 2000 kilometers above the earth surface. Given that the radius of the earth is approximately 6400 kilometers and that the satellite completes its orbit in 12 hours, CALCULATE THE SPEED OF THE SATELLITE IN KILOMETERS PER HOUR.

Answer:

20,349x100,947

Step-by-step explanation:

A ON EDGDE

The expression which represents the number of possible groups of students that can fill the 11 available slots is 20,349 · 100,947.

Given that:

A high school is hosting a blood drive.

The problem can be done by using the concept of combinations.

Total number of students in Mr. Bentley’s class = 21

Number of slots available for Mr. Bentley’s class = 5

The number of possible groups that 21 students who can fill 5 slots are ²¹C₅.

Total number of students in Mr. Curren’s class = 23

Number of slots available for Mr. Curren’s class = 6

The number of possible groups that 23 students who can fill 6 slots are ²³C₆.

The number of possible groups is:

N = (²¹C₅) (²³C₆)

   = [21! / (5!)(21-5)!] [23! / (6!)(23-6)!]

   = (20349) (100947)

Hence the required expression is a.

Learn more about Combinations here :

https://brainly.com/question/29595163

#SPJ2

Answer:  

I believe non of the above.

Step-by-step explanation:

Answer: C- None of the above

Step-by-step explanation:

The probability of rolling a die and it landing on 4 while also drawing a heart from a deck of 52 cards is 1/24.

The experiment involves rolling a die and drawing a card from a deck. The probability of rolling a specific number, like a 4, on a fair six-sided die is 1/6 since there are six possible outcomes, each equally likely. When drawing a card from a standard 52-card deck, the probability of drawing a heart is 1/4, because there are four suits and each suit has the same number of cards (13).

To find the combined probability of both independent events occurring, we multiply their individual probabilities: (1/6) for rolling a four and (1/4) for drawing a heart, which equals (1/6) * (1/4) = 1/24. Therefore, the probability of the die landing on a 4 and drawing a heart is 1/24.

Answer:

Didn't give enough information..

Step-by-step explanation:

need to see the circle if need help ill give answer.

Answer: There are 43 white marbles.

Step-by-step explanation:

t = total number of marbles = 54

w = white marbles = 4b - 1

b = blue marbles

54 = b + (4b - 1)

b + 4b = 5b

54 = 5b - 1

+1

55 = 5b

/5

11 = b

There are 11 blue marbles.

4(11) - 1

44 - 1 = 43

43 + 11 = 54, therefore our solutions are correct.

Answer:

43

Step-by-step explanation:

W = 4B - 1

W + B = 54

4B - 1 + B = 54

5B = 55

B = 11

W = 4(11) - 1

W = 43

Answer:

Step-by-step explanation:

4 times

Each term of G is 4 times the corresponding terms of H.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

we have a table between G and H.

So, take two pair of G and H as (8, 2) and (16, 4).

Then, the slope

= (4 -2)/ (16- 8)

= 2 / 8

= 1/4

Thus, the G is 4 times the corresponding terms of H.

Learn more about Slope here:

https://brainly.com/question/3605446

#SPJ5

Final answer:

To find the menu price of an item after a total charge of $16.7 with a 7.6% local sales tax, calculate the total sales tax amount and then deduct it from the total cost to obtain the menu price of $15.43.

Explanation:

To find the menu price of the item after being charged $16.7 in total for a meal with a 7.6% local sales tax:

Calculate the sales tax amount: 7.6% of $16.7 = $1.27

Subtract the sales tax from the total cost: $16.7 - $1.27 = $15.43

Therefore, the menu price of the item was $15.43. Make sure to round off correctly based on the question requirements.

Answer:

17.5

Step-by-step explanation:

11 +  24 = 35 /2

Answer:

17.5.

Step-by-step explanation:

The total number of integers from 11 to 24 =  13 + 1 = 14.

So the  2 middle numbers are 17 and 18.

Number in the middle = 17.5.

This is the median of the list of numbers.

Given:

[tex]\sum_{k=3}^{6}(-2 k+5)[/tex]

To find:

The sum of the series.

Solution:

[tex]$\sum_{k=3}^{6}-2 k+5[/tex]

Substitute k = 3, 4, 5 and 6.

               [tex]$=[-2 (3)+5] +[ -2 (4) +5]+[-2 (5)+5]+[-2 (6)+5][/tex]

               [tex]$=[-6+5] +[ -8 +5]+[-10+5]+[-12+5][/tex]

               [tex]$=[-1] +[ -3]+[-5]+[-7][/tex]

Apply minus plus rule: [tex]+(-a)=-a[/tex]

               [tex]$=-1 -3-5-7[/tex]

               [tex]$=-16[/tex]

[tex]$\sum_{k=3}^{6}-2 k+5=-16[/tex]

Therefore the sum of the series is -16.

Answer:

38 pages

Step-by-step explanation:

Add 21 + 17 pages

Answer:

g is approximately $129.77

Step-by-step explanation:

.22g+19.97=48.52

.22g=28.55

28.55/.22=129.77

Answer:

The cost of the phone: $28.55

The total price of the phone: $129.77

48.52 - 19.97 = 28.55

The phone was marked off by 22% so you divide by 22% to get the total cost of the phone, just incase you needed that.

Hope this helps <3

Answer:

24

Step-by-step explanation:

1. 24

2. 0

3. a [4.9] and [3.1]      and      c [-6] and [-6]

4. edge answer: The statement is not true for all real numbers. It is only true for decimal or fractional values of x . If x is an integer, then the ceiling function returns x when the input is x . But, the flooring function returns x + 1 when the input is x + 1. Since x does not equal x + 1 when x is an integer, the expressions are not equal when x is an integer.

5. edge answer: There are three steps. The steps are at 8 from 0 to 1, at 12 from 1 to 2, and at 16 from 2 to 3. Closed circles are on the left side of each step, and open circles are on the right.

6. all real numbers

7. all multiples of 4

8. multiples of 8 greater than 0

9. 3

10. real numbers ≥ 0

11. integers ≥ 0

12. f(x)=2.50[x-1]

here's your reminder to fix your posture (you know you're slouching, that'll hurt your back when you're old lol) and go get some water! hydration is best because your body uses it to regulate body temperature, keep joints lubricated, prevent infections, deliver nutrients to cells, and keep organs functioning properly. being well-hydrated also improves sleep quality, cognition, and mood! also, if you don't drink water for 3-21 days (depends on age and body and stuff) you'll die. so there's that too.

summary of that ^ fix your posture and drink some water <3

Answer:

Lateral area = 94.2 ft²

Step-by-step explanation:

The formula for lateral area of cylinder is given as;

A_l = 2πrh

Where;

r is radius

h is height

Now, we are told that the distance between the 2 circular bases is 6ft. Thus, the height is 6ft.

Diameter is given as 5ft.

We know that radius = diameter/2

Thus;radius;r = 5/2 = 2.5 ft

So, lateral area = 2πrh = 2π x 2.5 x 6 = 94.2 ft²

Lateral area = 94.2 ft²

15%=0,15

5000×0,15=750$

Answer: He should save $750

Answer:

Lin = 48 seconds  

Diego = 30 seconds  

Step-by-step explanation:

Hi, to answer this question we have to divide the total ounces of drink by the amount that each one drank per second, for each case.

Mathematically speaking:

Lin = 12 ounces / (1/4) ounces/second = 12/ (1/4) = 48 seconds  

Diego = 20 ounces / (2/3) ounces/second = 20/ (2/3) = 30 seconds  

Feel free to ask for more if needed or if you did not understand something.

Lin = 48 seconds  

Diego = 30 seconds  

Lin = 12 ounces ÷ (1/4) ounces/second = 12 ÷ (1/4) = 48 seconds  

Diego = 20 ounces ÷ (2/3) ounces/second = 20 ÷  (2/3) = 30 seconds  

Learn more: https://brainly.com/question/4804019?referrer=searchResults

Answer: The estimated 15% tip would be $4.50.

Step-by-step explanation: Basically, first you will need to round the bill amount, $31.51 to the nearest ten dollars. 31.51 rounded to the nearest ten dollars is $30. Next, you will need to find the estimated tip amount. To do this multiply $30 by the tip 15%. Before you can find the tip amount, you will need to covert 15% to a decimal. To convert 15% to a decimal, divide 15 by 100 to get 0.15. Now, you can multiply 30 by 0.15 to get 4.50. So, $4.50 would be the tip if $31.51 was rounded to the nearest ten dollars.

Answer:

The coordinate (1, 0) is from a dilation using the scale factor of One-fifth.

Step-by-step explanation:

this answer would be A. The coordinate (1, 0) is from a dilation using the scale factor of One-fifth.

hope this helps

Answer:

100 girls and 20 boys

Step-by-step explanation:

since its 5 times as many girls multiply 20 by 5 which is 100 and then boom 20 boys cause 100 divided by 5 is 20