Mathematics High School

f(x) = 8x - 11

f(9) =

Answers

Answer 1

Answer:

61

Step-by-step explanation:

hi! we can start off by plugging in the number 9 for x in the equation.

f(x)=8x-11)

f(9)= 8(9)-11

= 72-11

=61

hope this helps.

Answer 2
The answer is 61.

Replace the x in the equation with the nine. F(9) = 8(9) - 11

Now first multiply 8 x 9 which is 72

Now you have F(9) = 72 - 11
Subtract the two numbers.

F(9) = 61

Related Questions

A triangle has exactly three sides. Prove the conditional by proving the contrapositive. If a polygon has more than three sides, then it is not a triangle. Contrapositive: If _____, then _____. Since ______, the contrapositive is _____, the original statement must be _____.

Answers

Answer:

If a polygon is a triangle, then it has exactly three sides

Since as have been presented above, the contraposition is true, the original statement must be true

Step-by-step explanation:

The contrapositive statement; If a polygon has more than three sides, then it is not a triangle

We have that the definition of a triangle = A polygon with exactly three sides

Therefore;

A polygon with more than three sides is not a triangle and has (n - 1)/2×180 degrees interior angle, where n = The number of sides

Therefore, when n > 3, (n - 2)/2×180 > 180°

The sum of interior angles of a triangle = 180°

Therefore, the contrapositive statement, if a polygon has more than three sides, then it is not a triangle is true

Therefore, we have;

If a polygon is a triangle, then it has exactly three sides

Since as have been presented above, the contraposition is true, the original statement must be true

Using the known angle, what side is known? What side is unknown? Use opposite, adjacent, or hypotenuse in your answer.

Answers

Answer: know side: 3

Unknown side: 5

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP WILL MARK BRAINLISTTT

Answers

Answer:

Y=8

ST=31

RT=81

Step-by-step explanation:

;)

Please Help me with question

Answers

The answer is three what you simply do is just look at what is dividable by the two answers so 12÷3 for 24÷8 for and so on

i dont know this one please help show your work​

Answers

A. S(3)=45
Look at the graph and see where 45 intersects the line
B. w is greater than or equal to 6
Since the problem says AT LEAST $60 look for where on the line the y coordinate is equal to $60

If you have any questions let me know

a marathon runner travels 5/2 miles in 1/4 hour. what is the runners unit rate?

Answers

Answer: 2/5

Step-by-step explanation:

Multiply and do math

3x+1 = 5x-9. what is the value of x?

Answers

X=5.
Explanation:
Take 3x+1=5x-9 and subtract 1 from both sides.
Now you have 3x=5x-10, Subtract 5x from both sides to get -2x= -10
Now divide both sides by -2 and you have x=5 :).

Answer:

X equals 5

Step-by-step explanation:

3x+1=5x-9

3(5)+1=5(5)-9

15+1=25-9

16=16

You earn $8.50 per hour and work 30 hours this week. What is the straight time pay?

Answers

Answer:

255

Step-by-step explanation:

The answer is 255 hope this helps

Consider this expression.
-3x2- 24x - 36
What expression is equivalent to the given expression?

Answers

Answer:

-3   2   6

Step-by-step explanation:

Consider this expression.

-3x2- 24x - 36

What expression is equivalent to the given expression?

-3 (x + 2)(x+6)

Drop down answer is in bold

The equivalent expression will be :  - 3 (x + 2) (x + 6)

We have the following expression -

[tex]-3x^{2}[/tex] - 24x - 36

We have to find out the equivalent expression of above expression.

Expand the following expression - (x + 2)(x + 4).

Above expression can be expanded in the following way -

(x + 2)(x + 4) = x(x + 2) + 4(x + 4) = [tex]x^{2}[/tex] + 2x + 4x + 16 =   [tex]x^{2}[/tex] + 2x + 16

According to question -

 [tex]-3x^{2}[/tex] - 24x - 36

- 3 ([tex]x^{2}[/tex] + 8x + 12)

-3 ([tex]x^{2}[/tex] + 6x + 2x + 12)

-3 [x(x + 6) + 2(x + 6)]

-3(x + 2)(x + 6)

Hence, the equivalent expression will be :  -3(x + 2)(x + 6)

To solve more questions on equivalent expression, visit the link below -

https://brainly.com/question/1184774

#SPJ2

PLS HURRY!!!!<3 A swimming pool has about 603 cubic feet of water. The pool liner has a small hole and is leaking at a rate of 1.5 cubic feet each hour. Ruby wrote the equation
V(h) = -1.5h + 603 to represent the scenario. Describe what each variable represents in the function, and how they relate to each other.

Answers

Answer:

hi did you find the answer ? if so can you please help me ?

Step-by-step explanation:

Answer:

Ruby function notation V(h) describes the volume of the pool after h number of hours. Hours is the independent variable and the total volume as a dependent variable

Step-by-step explanation:

I got a 100%

g(x) = -3x + 1

solve for x (which is 22)

Answers

Answer:

-65

Step-by-step explanation:

Answer:

-65

Step-by-step explanation:

-3(22) + 1

-65

7(r − 1) = 6(r + 1) please show work

Answers

Answer:

r=13

Step-by-step explanation:

7r-7=6r+6

7r-7+7=6r+6+7

7r=6r+13

7r-6r=6r+13-6r

r=13

Answer: r−13

Step-by-step explanation:     Step 1.  (7 • (r - 1)) -  6 • (r + 1)

                                                Step 2.  7 • (r - 1) -  6 • (r + 1)

What integers are closest to the square root of 54 on the number line?

Answers

Answer:

sqrt(54) is between 7 and 8

Step-by-step explanation:

Lets look at integers that are squared

1^2  = 1

2^2 = 2

3^2 = 9

4^2 = 16

5^2= 25

6^2 = 36

7^2 = 49

6^2 =64

54- 49 = 5   and 64 - 54 = 10

So 54 is closer to 49

so sqrt(54) is closer to the sqrt(49) = 7

sqrt(54) is between 7 and 8

On January 3rd, the Earth is 147,500,000 kilometers away from the Sun. On July 4th, the Earth is 152,500,000 kilometers away from the Sun. The Sun has a radius of about 865,000 kilometers.

Could the Earth's orbit be a circle with some point in the Sun as its center? Explain your reasoning.

Answers

Answer:

No

Step-by-step explanation:

It could not because in order for it to be a circle the number of kilometers would have to be constant, however in earth's orbit it is not constant, therefore it is an oval, not a circle.

Suppose y varies directly as x, and y = 21 when x = 3. Find x when y = 42.

Answers

Answer:

x = 24

Step-by-step explanation:

y₂ - y₁

42 - 21 = 21

x + 21

3 + 21 = 24

So when y increases by 21, so does x.

x = 24

help pleaseeeeeeeeeee

Answers

the answer is the last 2. the 3rd one are both equal to -72 and the last one they both equals to 0.75.

is 6.54 repeating a rational number?

Answers

Answer:

yes

Step-by-step explanation:

Yes, 6.545454.... is a rational number.

Given that,
To specify that 6.54 repeats a rational number.

What is a rational number?

Rational numbers are numbers that can be structured in the form of the fraction of integers. Eg- 5/6, 2/3, etc.

What are irrational numbers?

An irrational number is a type of real number which cannot be represented as a simple fraction or the values that have face value are irrational numbers. Example: √2, √3, and π are all irrational.

Here,
6.545454...
Above the value 54 posts, the decimal place is repeating, thus the number is rational number.

Thus, Yes, 6.545454.... is a rational number.

Learn more about Rational numbers here: https://brainly.com/question/17450097

#SPJ2

Arleen has a gift card for a local lawn and garden store. She uses the gift card to rent a tiller for 3 days. It costs $48 per day to rent the tiller. She also buys a rake for $5. Part 1 out of 2 Find the change to the value of her gift card. The value on her gift card decreased by dollars.

Answers

Given :

Arleen has a gift card for a local lawn and garden store. She uses the gift card to . It costs $48 per day to rent the tiller. She also buys a rake for $5.

To Find :

The value on her gift card decreased by how many dollars.

Solution :

Decrease in dollar is given by :

[tex]D =\text{ rent a tiller for 3 days+ price of rake}\\\\D= \$( 48\times 3 + 5)\\\\D = \$149[/tex]

Therefore, the value on her gift card decreased by 149 dollars.

Hence, this is the required solution.

It’s asking to write an equation of the line with a slope...please help!!

Answers

Answer:

y = -3/4x - 6

Step-by-step explanation:

Use y-intercept (0, -6) and slope -3/4 and put into y=mx+b form to solve for b

Remember that m is also known as slope!

-6=(-3/4 * 0) + b

b= -6

y= -3/4x - 6

is -4.67 a rational number

Answers

Answer:

No

Step-by-step explanation:

ab+c=de-f
solve for d
BUT SHOW ME THE STEPSS

Answers

Answer:

ab*e/2-c+f=d

Step-by-step explanation:

d = 2.426

WILL MARK YOU BRAINLIEST!!!!!

Answers

Answer:

m <6 would also be 112

Step-by-step explanation:

Help pls help NOW! 35 points.

Answers

u probs don’t need this but take it as confirmation i guess:
it’s true

Solve the following equation for b. 6b + 2a – 4 = 2b + 3a
Group of answer choices

Answers

Answer:

b = a/4+1

a

4

+

1

Step-by-step explanation:

What is the value of x that makes the equation
3x - 4= 15 + 2x true?
You may show your work either by drawing on the
sketch pad

Answers

Answer:

[tex]\boxed {x = 19}[/tex]

Step-by-step explanation:

Solve for the value of [tex]x[/tex]:

[tex]3x - 4 = 15 + 2x[/tex]

-Take [tex]2x[/tex] and subtract it from [tex]3x[/tex]:

[tex]3x - 4 - 2x = 15 + 2x - 2x[/tex]

[tex]x - 4 = 15[/tex]

-Add [tex]4[/tex] to both sides:

[tex]x - 4 + 4 = 15 + 4[/tex]

[tex]\boxed {x = 19}[/tex]

So, the value of [tex]x[/tex] is [tex]19[/tex].

Need asap 9th grade just answer no explanation

Answers

Answer:

(x-3)(x-2)

Step-by-step explanation:

none cause you dont want one

The _______________________ is a ray that divides an angle into 2 congruent angles.

Answers

Answer:

Angle bisector

Step-by-step explanation:

A bisector cuts a line into two even parts, therefore an angle bisector would split an angle into two congruent angles, each that have exactly half the measure of the original angle.

help what is the solution for : 5 + |x| = 14

Answers

Answer:

9

step by step explanation

5+x=14

14-5=9

x=9

Point a(10,9) and point b(-2,3). What are the coordinates of the point of the way from a to b?

Answers

Answer:.

....

Step-by-step explanation:

ANWSERRRR NOW PLEASE



two more than twice a number is less than negative eighteen solve for the

Answers

Answer:

2x+2<-18

Step-by-step explanation:

First subtract 2 from both sides to get 2x<-20

Then divide both sides by 2 to get x<-10

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