Evaluate the function.
f(x)= -x^2
find f(3)

Answers

Answer 1

Answer:

f(3) = - 9

Step-by-step explanation:

To evaluate f(3) , substitute x = 3 into f(x) , that is

f(3) = - (3)² = - 9


Related Questions

11.68 - 0.48 ÷ (-1.6) =

need help I need a way to solve this problem

Answers

Step-by-step explanation:

11.68-0.48

= 11.20

11.20÷1.6

= 7.0 or 7

ahh this is the correct answer.

so if it helps don't forget to like and Mark me.

It is supposedly 7.0 or 7








Help Asap please, If you dont know it please dont!

Answers

Answer:

D. 22 2/3 square yards

Step-by-step explanation:

To find the area of a rectangle or the workshop, you just have to multiply the two measurements together.

Hope this helps!

-Luna

Simplify square root of .49x^18 where x<0

Answers

Answer:

-.7x^9

Step-by-step explanation:

The solution of the expression 49x¹⁸ will be 7x⁹.

What is a radical expression?

Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication, and division.

The radical sign, which may be read as either the nth root of x or x radical n, expresses the root of a number. The vinculum, or horizontal line that encircles the number, and the radicand, or number beneath it, are both technical terms.

The given expression is 49x¹⁸. The value of the expression will be solved as:-

E = √( 49x¹⁸)

E = √ (7² x x¹⁸ )

E = 7x⁹

Therefore, the square root will be equal to 7x⁹.

To know more about radical expression follow

https://brainly.com/question/738531

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Plz help fast will mark brainliest!!!

Answers

Answer:

V≈523.6

Step-by-step explanation:

PLEASEEEEEEEEEEE HELPPPPPPPPP WITH THISSSSSSSSS

Answers

Answer:

P = 10x + 2

Step-by-step explanation:

Formula to find perimeter:

P = 2(l + w)

P = 2(4x + 1 + x)

P = 2(5x + 1)

P = 10x + 2


someone help with the first one

Answers

Answer:

45

Step-by-step explanation: 180- 135

Answer:

<L = 45

<N = 135

Step-by-step explanation:

<L + 135 = 180

<L = 180 - 135

<L = 45

<N = 135 because of vertical angles

Write 4/10 and 3/5 as a pair of fractions with common denominator and Write 2/7 and 1/3 as a pair of fractions with common denominator

Answers

4/10 and 3/5 = 4/10 and 6/10
2/7 and 1/3 = 6/21 and 7/21

Help ASAP I’ll mark you as brainlister

Answers

Answer:

3/4[tex]\pi[/tex] x 180/[tex]\pi[/tex]= 135°

Step-by-step explanation:

Are you an equation because you are driving me crazy...

Answers

Sheeeeeeeeeeeeeeeeesh, whats the snap???

Step-by-step explanation:

A teacher places 10 marbles in a bag.

- 2 blue marbles
- 3 red marbles
- 5 yellow marbles
A student draws one marble from the bag, does not replace it, then draws another marble from the bag. What is the probability that the first marble will be yellow and the second marble will be red?

Answers

Step-by-step explanation:

Since they do not replace it the total amount of marbles are the same

After reviewing your model stock list, you discover a changing sales pattern over the last several months on the most popular style of jeans. The data note the following sales per month: August-75 units, September-95 units, October-130 units. Assuming your sales continue to grow at the avereage rate they did between August and October, what will your sales be in November?


a) 90
b) 105
c) 106
d) 158

Answers

Answer:

158

Step-by-step explanation:

If the average rate between August and October was on an increase, then November sales will be 158.

What is Rate?

This is defined as the quantity or amount of something which is measured per unit of something else.

From the stock list, the average rate kept increasing which means option D is the most appropriate choice.

Read more about Rate here https://brainly.com/question/2375289

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please answer no links

Answers

Answer:

56.54in^2

Step-by-step explanation:

Answer:

18π in^2 (roughly 56.5 in^2)

Step-by-step explanation:

The area of a semicircle is half the area of a circle. So the area would be 1/2πr² instead of πr².

Since the diameter is 12 inches, the radius would be half of that, making the radius r=12/2=6 inches.

Plugging in r=6 into our formula, we see that the area of the semicircle is 1/2π(6)²=1/2π(36)=18π inches^2

So your final area is 18π in^2 (roughly 56.5 in^2)

Can you guys please help! (

Answers

Answer:

1) A

2) it is lesser with 7cubes

Step-by-step explanation:

because

[tex]2 \times 5 \times 2 = 20cubes \: whilst \: \\ b \: has \: 3 \times 3 \times 3 = 27cubes[/tex]

A circle is centered at A(-5,-8)A(−5,−8)A, left parenthesis, minus, 5, comma, minus, 8, right parenthesis. The point M(-1,-3)M(−1,−3)M, left parenthesis, minus, 1, comma, minus, 3, right parenthesis is on the circle. Where does the point V(-11,-6)V(−11,−6)V, left parenthesis, minus, 11, comma, minus, 6, right parenthesis lie?

PPLLLSSSSS HELPPPP!!!!!! I will mark brainliest!!!!

Answers

Answer:

Its inside the circle

Step-by-step explanation:

Thats the answer on khan (RIP me i searched this up to get the answer and got it wrong to answer the right answer...)

Answer: Inside the circle

Step-by-step explanation: Khan Academy

"five times the difference of x and 4" represent?

Answers

Answer:

5(x-4) or 5(x-4)

Step-by-step explanation:

(not 100% sure though)

[tex]five \: times \: the \: difference \: of \: x [/tex]

[tex]and \: 4 \: represents \: 5(x - 4)[/tex]

Write a function rule for “The output is five more than the input.”

y=x-5
y=x+5
y=mx=b

Answers

Answer:

y = x + 5

Step-by-step explanation:

The output (y) is five more than the input (x)

and this is expressed symbolically as

y = x + 5

whoever gets this corrects gets brainliest!!!

Answers

Answer:

d

Step-by-step explanation:

the submarine is below water so that's considered a negative and the number in  the equation is negative 3. and if you keep multiplying a positive by a negative the number stays negative and thats the submarine getting deeper and deeper into the ocean if that makes sense.

D
The others represent positive change

How many times in the 30 minutes graphed is the temperature exactly 40 degrees? (Brainlist!!)

Answers

Answer:

It occered 3 times.

Step-by-step explanation:

Two observers are standing on shore ½ mile apart at points A and B and measure the angle to a sailboat at a point C at the same time. Angle A is 63° and angle B is 56°. Find the distance from each observer to the sailboat. Round to the nearest hundredth of a mile.

Answers

Answer:

Step-by-step explanation:

The length 0.51 miles and 0.47 miles are the distances from each observer to the sailboat.

What is the Sine Rule?

The Law of Sines (also called the Sine Rule) is defined as it relates all three sides of a triangle with an angle of a triangle.

Triangle is a basic polygonal shape of a triangle that has three sides and three interior angles. It is one of the fundamental shapes in geometry.

As per the given question, the given data  as:

A = 63

B = 56

C = 61 (because these angles should add up to 180)

c = 1/2

We know that the Sine Rule,

sin 63 / a = sin 61 / .5

a = 0.51 miles

sin 56 / b = sin 61 / .5

b = 0.47 miles

Therefore, the length 0.51 miles and 0.47 miles are the distances from each observer to the sailboat.

Learn more about Trigonometric functions here:

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Un número decimal periódico mixto es un número irracional.

Answers

Answer:

Step-by-step explanation:

decimal periodico mixto es un decimal en el que al menos uno de los dígitos después del punto decimal no se repite y algunos dígitos se repiten .

Estos decimales son racionales

Los que no se repiten y no se treminan son irracionales

Three fourths divided by nine

Answers

Answer:

0.1

Step-by-step explanation:

Divide 3/4 by 9 which will leave you with 0.083 repeated but if you estimate to the closest decimal that will bring you to 0.1 as your final answer.

The correct answer is 1/12

One number is 60 more than another. If the larger number is divided by the smaller number, the quotient is 4.
What are the numbers?​

Answers

Answer:

80 and 20

Step-by-step explanation:

Let the 1st no. be 'x'.

2nd no. should be 'x + 60'.

If the larger no.(x + 60) is divided by the smaller number(x), the quotient is 4.

=> (x + 60)/x = 4

=> x + 60 = 4x

=> 60=4x-x

=> 60=3x

=> 60/3 = x

=> 20 = x

No. are x = 20 and x+60 = 20+60= 80

PLEASE HELP! It’s super important!

Answers

Answer:

2. a. - 1b.[tex] - \frac{2}{3} [/tex]3. a. 4b. 6

Step-by-step explanation:

[tex]2. \: a. \: \sqrt[3]{ - 1} [/tex]

[tex] = \sqrt[3]{( - 1 )\times ( - 1 )\times( - 1)} [/tex]

= -1 (Ans)

[tex]b. \: \sqrt[3]{ - \frac{8}{27} } [/tex]

Since,

[tex] \sqrt[3]{ - x} = - \sqrt[3]{x} [/tex]

Hence,

[tex] = - \sqrt[3]{ \frac{8}{27} } [/tex]

[tex] = - \sqrt[3]{ \frac{2 \times 2 \times 2}{3 \times 3 \times 3} } [/tex]

[tex] = - \frac{2}{3} (ans)[/tex]

[tex]3. \: a. \: 10 - 2 \sqrt{9} [/tex]

[tex] = 10 - 2 \sqrt{3 \times 3} [/tex]

= 10 - 2 × 3

= 10 - 6

= 4 (Ans)

[tex]b. \: 70 - {( \sqrt[3]{64} )}^{3} [/tex]

[tex] = 70 - \sqrt[3]{ {64}^{3} } [/tex]

[tex] = 70 - \sqrt[3]{64 \times 64 \times 64} [/tex]

= 70 - 64

= 6 (Ans)

In the interval 0° < x < 360°, find the values of x for which sin x = 0.6691 Give your answer tot he nearest degree

Answers

Answer:

x are 42 and 138degees

Step-by-step explanation:

Given the expression  sin x = 0.6691

sin x = 0.6691

Take the sin inverse of both sides

sin⁻¹(sin x) =  sin⁻¹(0.6691 )

x = sin⁻¹(0.6691 )

x = 41.99

x = 42 degrees (to the nearest degree)

Since sin theta is positive in the second quadrant;

x = 180 -theta

x = 180 - 42

x = 138degrees

Hence the value of x are 42 and 138degees

need done soon! offering 20 points!!
Mrs. Roberts’ dog, Rover, loves to eat peanuts. A cylindrical can of peanuts has a diameter of 4 inches and a height of 9 inches. Which of the following equations can be used to find the volume of the can of peanuts? 8 points

Answers

Answer:

c

Step-by-step explanation:

cccccccccccc

An eighth grade class was divided into two groups to go to the state fair. The students in the first group bought 9 food tickets and 14 ride tickets for $66.50 total. The students in the second group bought 18 food tickets and 14 ride tickets for $98.00 total. What was the cost of each food ticket and each ride ticket.

Answers

Answer: HOW AM I SUPPOSED TO KNOW?!

Step-by-step explanation:

solve for x: 2+x+x+x+4=9

Answers

Answer:

x=1

Step-by-step explanation:

2+1+1+1+4=9

2+x+x+x+4=9

=> 3x + 6 = 9

=> 3x = 9-6

=> 3x = 3

=> x = 3/3

=> x = 1

I will make the brailsit plz help

Answers

Answer:

hindi ko alam yan wala akong pakialam

Step-by-step explanation:

tanga tanga

Look, this is what it shows

Answers

Answer:

This is very similar to what we are proving if you just change the angles.

The bear population increases at a rate of 2% per year. There are
1573 bear this year. Write a function that models the bear population.
How many bears will there be in 10 yr?

Answers

Answer:

The answer would be P(x) = 1573*(1.02)^x

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