Evaluate the algebraic expression 25/r-4 if r=9

Answers

Answer 1

Step-by-step explanation:

25 / 9 -4 = 25 / 5 = 5

5 is the solution

Answer 2

Answer:

5

Step-by-step explanation:

[tex]\frac{25}{r-4} = \frac{25}{9-4} =\frac{25}{5}= 5[/tex]

replace r with 9


Related Questions

Does the following infinite series converge or diverge? 1/3+2/9+4/27+8/81

Answers

Answer:

converge

Step-by-step explanation:

The ratio that you multiply by to get the next term is 2/3, which is less than 1, so the geometric series converges by the Geometric Series Test.

Answer:

Converge

Step-by-step explanation:

The value of r in this infinite series is 2/3.

If the absolute value of r is less than 1, then the infinite series converges.

Since 2/3 is less than 1, the series must converge.

Change 7.25 a.m. to 24 hour clock time.
Use a colon : to separate hours and minutes.​

Answers

Answer:

the answer is: 07:25 a.m.

Abigail wants to ride her bicycle 37 miles this week. She has already ridden 17 miles.
If she rides for 5 more days, what is the average number of miles she would have to
ride each day to meet her goal?

Answers

Answer:

20 (i think)

Step-by-step explanation:

subtraction

PLEASE HELP IM STRESSED I CANT THANK YOU :)

Answers

Answer:

125

Step-by-step explanation:

In ΔPTO we are given that

∠PTO = 90° (indicated by the right angle)

and ∠TPO = 35°

And we need to find the exterior angle (∠TOB)

If you didn't know this is the rule about exterior angles

Exterior angles of a triangle are equal to the sum of the opposite interior angles of a triangle

So more specifically for this problem

∠TOB = ∠PTO + ∠TPO

Now that we have created an equation we want to plug in the values that we are given

∠TOB = 90 + 35

90 + 35 = 125

Therefore the answer is 125

Which of the following is always true about lines of symmetry?

A line of symmetry divides a shape into two equal parts.
A line of symmetry is a vertical line through the middle of a figure.
A figure can have only one line of symmetry.
A line of symmetry goes through opposite vertices of a figure.

Answers

1 2 and 4. it won’t let my answer be that short

The following data points represent the number of chicken nuggets on each family member's plate.
1,3,0, 6, ?
If the mean of the data set is 3 chicken nuggets, find the missing number of chicken nuggets.
nuggets

Answers

Answer:

The missing number of chicken nuggets is 5.

Step-by-step explanation:

To find the mean of this data set, we must add every number together, then divide the sum by how many numbers are present.

Like this,

1 + 3 + 0 + 6 = 10

10 / 4 = 2.5

There are 4 present numbers in this data set, and one is missing.

Since the only number divided by 5 that would give you a quotient of 3 is 15, the missing number is 5.

Because,

1 + 3 + 0 + 6 + 5 = 15

15 / 5 = 3

Therefore, 5 is the missing number of the data set.

The answer of the missing chicken nuggets is 5

The areas of two similar squares are 16m2 and 49m2 what is the scale factor of their side lengths

Answers

Given:

The areas of two similar squares are 16m² and 49m².

To find:

The scale factor of their side lengths.

Solution:

We know that the ratio of the areas of the similar squares is proportional to the ratio of square of there sides.

[tex]\dfrac{\text{Area of first square}}{\text{Area of second square}}=\dfrac{(\text{Side length of first square})^2}{(\text{Side length of second square})^2}[/tex]

[tex]\dfrac{16\ m^2}{49\ m^2}=\dfrac{s_1^2}{s_2^2}[/tex]

[tex]\dfrac{4^2}{7^2}=\left(\dfrac{s_1}{s_2}\right)^2[/tex]

[tex]\left(\dfrac{4}{7}\right)^2=\left(\dfrac{s_1}{s_2}\right)^2[/tex]

Taking square root on both sides, we get

[tex]\dfrac{4}{7}=\dfrac{s_1}{s_2}[/tex]

[tex]\dfrac{s_1}{s_2}=\dfrac{4}{7}[/tex]

Now, the scale factor is the ratio of side length of second square to the side length of first square.

[tex]k=\dfrac{s_2}{s_1}[/tex]

[tex]k=\dfrac{7}{4}[/tex]

Therefore, the scale factor of their side lengths is [tex]k=\dfrac{7}{4}[/tex].

Answer: 4/7 is the right answer on Acellus

Step-by-step explanation:

Solve x2 + 8x = 24.

Answers

Answer:

-10.3 and 2.3

Step-by-step explanation:

use quadratic formula:

-8 ± √8²-4(-24) ÷ 2

= -8 ±√64+96 ÷ 2

= -8 ± √160 ÷ 2

= -8 + 4√10 / 2 and

-8 - 4√10 / 2

which is the same as -4 + 2√10 and -4 + 2√10

which is the same as -10.3 and 2.3

Please help!! I'll give brianlist!!! which points are reflections of each other across both access? ​

Answers

Answer:

(5,-6) and (-5,-6) is the correct answer

Step-by-step explanation:

Eliminate incorrect answers

(-2,8)and (2,-8) are in the opposite direction not mirroring each other

(-7,-1) and (-7,1) are on the same x axis but to close to the y axis not mirroring

(4,-3) and (-3,4) is completely off and not mirroring

* Remember the first number in the parentheses moved on the x axis then the y

Hope this helps =)

plz mark Brainly

 

Here are the diameters of four coins. A dime rolls 41.8 cm. How many rotations did it make?
Will give brainliest,

Answers

Answer:

i believe the answer is 10.5

Step-by-step explanation:

dime = 3.14 (1.8) =5.62 cm

Since the coin rolled about 10.5 cm in 4 rotations, it means that the circumference of the coin (x) multiplied by 5 is equal to the distance rolled.

4x=41.8

x =41.8/4 =10.5cm

good luck :)

i hope this helps

**please let me know if this is incorrect**

have a nice day!

The mean is 80, the standard deviation is 5. What number is 2.5 standard deviations above the mean? It is a normal distribtion.

Answers

Answer:

So the final answers would be (90 > z)-P(80<z) = .47725 or 47.725%

Step-by-step explanation:

PLEASE HELP ME I WILL BRAINLIST YOU ​

Answers

Answer:

Pentagonal Prism

Step-by-step explanation:

It has 5 sides and a pentagon has 5 sides

Answer:

pentagonal prism

Step-by-step explanation

a pentagon is a 5 sided shape, and a prism just gives it a height, so the answer is 3

brainliest please :) its fine if you don't give me brainliest tho :p

What two numbers have a product of -22 and a sum of -9?

Answers

-11 and 2, hope this answer helped you!

Any help, please!
I dont understand

Answers

the answer would be 40% :)

someone please help!!! ​

Answers

Answer:

A = x² + 11x + 30

Step-by-step explanation:

For a given rectangle

Length (l) = x + 5

Breadth (b) = x + 6

Now,

Area of rectangle

A = l × b

= (x + 5) × (x + 6)

= x² + 6x + 5x + 30

A = x² + 11x + 30

Thus, The area of rectangle in the form of polynomial is

x² + 11x + 30

-TheUnknownScientist

Which quadratic expression is written in standard form?
a. (x + 3)
b. (x + 4)2
c. -X2 - 5x + 7
d. x2 + 2(x + 3)

Answers

Answer:

C.

Step-by-step explanation:

-x^2 - 5x + 7.

After eight games the team has won two games lost five and tied one if there season is 24 games how many games will they win at this rate

Answers

120 games in total for the games played

Answer:

Since the games in total add up to 8, we see that 8 is a factor of 24. It goes in 3 times. Therefore, we have to multiply everything by 3 to get the answer out of 24. There will be 6 wins, 15 losses and 3 tie. That adds up to 24.

Find all the zeroes of the polynomial x^4 − 3x^3 + 6x − 4 , if two of its zeroes are √2 and −√2 . Thanks​

Answers

Answer:

x=1 and x=2

Step-by-step explanation:

FIrst, continiuously apply syntheic divison to break it down into a quadratic.

Then, factor that quadratic.

Your zeores would be 1 and 2

Can someone please help me on this problem?

Answers

Answer:

$5820.10

Step-by-step explanation:

formula:  [tex]117\sqrt[3]{n^{2} }+1264[/tex]

n = 243

[tex]117\sqrt[3]{243^{2} }+1264[/tex] = 117(38.941)+ 1264

                           = 4556.097 + 1264

                            = 5820.10

can someone help me understand this question better

Answers

Answer:

do you mind zooming in more

Step-by-step explanation:

Pic from the problem

Answers

Answer:

53.2

Step-by-step explanation:

Im sorry if im wrong

plz help plz help its not a lot

Answers

Answer:

Option A) 7 inches

Step-by-step explanation:

t=0

so d= -0.5(0)+7

so d= 7 inches

hope it helps

have a great day!!

How do I find the area of this?​

Answers

Answer:

Area of the given right triangle = 24 square units.

Step-by-step explanation:

Given triangle in the picture is a right triangle.

Area of a right triangle is given by,

Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

Height of the given triangle = 8 unit

Base of the given triangle = 6 unit

Area of the triangle = [tex]\frac{1}{2}(6)(8)[/tex]

                                 = 24 square units

Therefore, area of the given right triangle is 24 square units.

X 52° Find the unknown angle measure​

Answers

Answer:

38 degrees

Step-by-step explanation:

Sunday at noon, the temperature was 5 degrees below zero. Wednesday at noon, the temperature was 7 degrees above zero. Which inequality compares the two integers for this situation correctly?

Answers

Answer:

- 5° < 0 < 7°

Step-by-step explanation:

Given that:

Sunday at noon :

Temperature = 5° below Zero

Wednesday at noon

Temperature = 7° above Zero

Temperature on Sunday noon < 0 < temperature on Wednesday noon

- 5° < 0 < 7°

these are all of the OC's i have made so fare what do you guys think

Answers

Answer:

Step-by-step explanation:

nice i like them

Calculate the side lengths a and b to two decimal places.

O A. a = 2.55 and b = 2.43
O B. a = 15.09 and b = 15.81
O c. a = 2.43 and b = 2.55
O D. a = 15.09 and b = 16.75
E. a = 15.81 and b = 15..09

Answers

Answer:

b

Step-by-step explanation:

PLEASE HELP!!!!

Robert is baking desserts for a picnic. He needs to make at least 20 servings of dessert for the
event. For every batch of brownies he bakes, he will get 8 servings, and every pie will
yield 14 servings.

Answers

Answer:

x*8 + y*14 ≥ 20

Step-by-step explanation:

We know that:

A batch of brownies makes 8 servings.

A pie makes 14 servings.

He wants to make, at least, 20 servings.

Then if he makes x batches of brownies, he will get x times 8 servings.

If he makes y pies, he will get y times 14 servings.

Adding that, he will get a total of:

x*8 + y*14 servings

And because he wants to make at least 20 servings (he can make 20 or more)

The inequality will be:

x*8 + y*14 ≥ 20

Where the "≥" symbol means that the expression at the left is greater than or equal to the expression of the right

Can someone plz help with this problem??

Answers

Answer:

17,2

Step-by-step explanation:

X = 21×cos35° = 21 × 0,82 = 17,20

Can someone help with this

Answers

Vertical angles meet at a point of intersection and are equal. The value of x from the shown figure is 9

Vertical angles

Vertical angles meet at a point of intersection and are equal.

From the figure given, the angles are vertical angles. Hence;

7x + 3 = 10x - 24

Collect like terms

7x - 10x = -24- 3

-3x = -27

x = 9

Hence the value of x from the shown figure is 9

Learn more on vertical angles here: https://brainly.com/question/14362353

#SPJ1

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