Find f(8)
f(x) =
7, x>3
5x − 3, x<3

Answers

Answer 1

Since 8>3

[tex]f(8) = 7[/tex]


Related Questions

explain why when you divide both sides of an inequality by a negative number, you must reverse the inequality sign.

Answers

because the relationship is swapped.


Solve by factoring. Check your answers. x²=-x+6

Answers

The factoring of the expression x²=-x+6 is (x-2)(x+3)

By ordering the values, we get:

x² + x - 6 = 0

To solve this exercise, we have to follow the rules of factoring:

1. Looking for the a and b number that state the following equations:

a + b = 1a * b = - 6

Analyzing that (a*b) is a negative number, it means that (a) and (b) have different signs, and due to the results of (a+b) is positive the higher number has to be the positive one.  

The number could be:

a = -2

b = 3

Confirming:

a + b = -2 + 3 = 1

a * b = (-2) * 3 = - 6

2. Rewriting the factored expression (x+a)(x+b) with the obtained values, we get:

(x-2)(x+3)

What is factoring?

Is a technique that consist of decomposition of a factor into a product of another factor, which when multiplied together give the original number.

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A grocery store sells a bag of 8 oranges for $3.12. If Boubacar spent $2.34 on oranges, how many did he buy

Answers

Answer:

Step-by-step explanation:

Answer = 6 oranges

.39 x 6 = $2.34

The number of oranges Boubacar buys is 6 oranges

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

The number of oranges a grocery store sells at $ 3.12 = 8 oranges

The number of oranges a grocery store sells at $ 1.00 =
The number of oranges a grocery store sells at $ 3.12 / 3.12

The number of oranges a grocery store sells at $ 1.00 = 8 / 3.12

Now ,

The number of oranges a grocery store sells at $ 2.34 = The number of oranges bought by Boubacar

The number of oranges a grocery store sells at $ 2.34 = ( 8 / 3.12 ) x 2.34

So ,

The number of oranges bought by Boubacar = ( 8 / 3.12 ) x 2.34

                                                                           = 8 x 0.75

                                                                           = 6 oranges

Hence , the number of oranges Boubacar buys is 6 oranges


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What are the answers and how do you write it out

Answers

Just use a calculator.

First substitute in the numbers and make sure to use ( ) when plugging in negative values. For example, the first one says n=4, you can substitute n from the expression to 4. So n^2 + 3n + 8 will turn into 4^2 + 3(4) + 8 which is 16 + 12 + 8 = 36. You can do this with the other questions.

Number 10 is -213.

PLEASE HELP ME
look at the pic down below

Answers

Answer:  (1) Deena and Eduardo, (2) (A) or cube root of 343

Step-by-step explanation:

Number 1 : Deena and Eduardo are correct,

16 x 16 = 256

4 x 4 x 4 = 64

Number 2 : (a) the cube  root. of 343 will give Patel the correct answer,

h^3 = 343

cube root of both sides

so, h. = cube root of 343

pls help i really need it i beg

Answers

The first and third picture are the same.

1. They have 13/12 ft of lumber

2. 3/7

3. 13/12

4. It took Tim 1/4 longer to run the sprint

a) Evaluate the following calculation, giving your answer rounded to 3 decimal
places:
(4.01 +8.56)³ × (347-150) ½
b) Explain the steps you have taken in the calculation and why.

Answers

Answer:

Step-by-step explanation:

Write
15
3
2
in surd form.

Answers

The given expression written in surd form is 15√15

From the question, we are to write the given expression in surd form

The given expression is

[tex]15^{3/2}[/tex]

To write the expression is surd form, we will apply one of the laws of indices.

From one of the laws of indices, we have that

[tex]x^{y/n} = \sqrt[n]{x^{y} }[/tex]

Then,

We can write [tex]15^{3/2}[/tex] as

[tex]15^{3/2} = \sqrt[2]{15^{3} }[/tex]

[tex]= \sqrt[]{15^{3} }[/tex]

Simplifying

[tex]\sqrt{3375}[/tex]

Further simplification

[tex]\sqrt{225 \times 15}[/tex]

= [tex]\sqrt{225} \times \sqrt{15}[/tex]

= [tex]15 \times \sqrt{15}[/tex]

= [tex]15 \sqrt{15}[/tex]

Hence, the given expression written in surd form is 15√15

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Two out of every five cars are red.if there are 100 cars in the parking lot, how many are red

Answers

Answer: 10 Cars!!!!

Step-by-step explanation:

2. The official Olympic swimming pool measures about 50 m x 25 m x 2.5 m (LWH). If a
box measuring 50cm x 70cm x 25cm (LWH) can hold 315 tennis balls, then what would
be a reasonable estimate for a number of tennis balls that can fit in the swimming pool?

Answers

Answer:

the answer isssssssssssssssssss

Jamie wants to share 18 ¾ inches of candy with two friends. How much will each person, including Jamie, receive if the candy is divided into equal amounts?.

Answers

Answer:

6 1/3  

Step-by-step explanation:

18 3/4 divided by 3 is 6 1/3


Find the inverse of each function. Is the inverse a function?
y=x²+4

Answers

If the equation be y = x² + 4 then the inverse function be [tex]f^{-1} (x)=[/tex] ± [tex]\sqrt{x - 4[/tex].

What is meant by inverse function?

An inverse function, also known as an anti function, is a function that can be reversed into another function. Simply put, if any function " f " takes x to y, then its inverse will take y to x. The inverse function is denoted by f-1 or F-1 if the function is denoted by ' f ' or ' F '.

Let the equation be y = x² + 4    

then the function be f(x) = x² + 4

y = x² + 4

x = y² + 4

simplifying the above equation, we get

x - 4 = y²

√y² = √x - 4

The value of y = ± √x - 4

Therefore, the inverse function be [tex]f^{-1} (x) =[/tex] ±√x - 4

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I am stuck. The questions are numbered so please type the number of the question by the answer. Please and thank you.

Answers

Answer:

#1 = -1/3

2# = -6/5

3# = 2/9

4# = 2

#5 = -2/3

Step-by-step explanation:

The slope formula is (y2 - y1) / x2 - x1. With (x1, x2) and (x2, y2) be points on the line.

If the temperature has been changing at a rate of −1.5 degrees each hour, and it is currently 5 degrees, the temperature 4 hours ago was

Answers

Answer:13.33333333

Step-by-step explanation:All you have to do is 5 divided by 1.5 times 4. Your welcome random human being (or alien)

NEED CORRECT ANSWER RN PLS
PLSS HELP :((
will mark brianlist if its the correct answer ty

Answers

The answer is C, I did the math.

HELP!!! There is a photo please quickly!!

Answers

Answer:

∆y = 9

∆x = 6

Slope = 3/2 or 1.5

It looks like you erased it, but you had the answer correct on your paper.

Step-by-step explanation:

Multiply. HELP

3/10⋅4/9

Responses

2/15

7/19

27/40

I don't know.

Answers

Answer: 2/15

Explanation:

Cancel out the greatest common factors (3 &2)
1. 2
- X -
5. 3.

Multiply the fractions across so 1 X 2 =2 and 5 X 3= 15

I need help, thank you <3

Answers

Step-by-step explanation:

so, pre-image is then doing the opposite :

going up 2 units and left 4 units.

up/down changes y, left/right changes x.

up = positive y direction

down = negative y direction

right = positive x direction

left = negative x direction

just as indicated by the coordinate axes.

so,

going up 2 units = adding 2 to y

going left 4 units = subtracting 4 from x

giving us as pre-image point A

(4 - 4, -5 + 2) = (0, -3)

A roll of 50 pennies has a mass of 125 grams. What is the value of 1,000 grams of pennies?
$4.00
$3.50
$5.00
$8.00
$4.50

Answers

Answer:

$4.00

Step-by-step explanation:

make a proportion

50/125=x/1000

1000(50/125)=x

8(50)=x

400=x

400pennies=$4.00

or solve like this

50/125= 0.4 pennies per gram (p/g)

0.4p/g

0.4p/g*1000g=400p=$4.00

The expression 53(1+x) represents the total cost of a meal including the tip.

Answers

Answer:

53 + 53x

Step-by-step explanation:

Multiply each term in the parentheses by 53 and you get 53 + 53x

I hope that helps!!

Simplify. (4/9)2

help

Answers

Answer:

8/9

Step-by-step explanation:

4/9 times 2 is 8/9 and 8/9 is already the simplest way to put it so the answer is 8/9

Answer:

8/9

Step-by-step explanation:

(4/9)(2/1)

(4)/(9)(2)/(1)

8/9

0.888 (decimal)

13 divided by 10 5/6 in fraction

Answers

Answer:

6/5 or 1 1/5

Step-by-step explanation:

Hope this helps. Please mark me Brainliest!

First answer gets brainliest!!!!!!!!!!!!!!!!!!!!

Answers

The following relationships between linear equations are shown below:

12 - (1 / 2) · r → [13 - (3 / 2) · r] -  (1 - r) r - 13 / 6 → (7 · r - 3 / 2) - (2 / 3 + 6 · r) 13 · r + 20 → (6 · r + 7) + (13 + 7 · r) - 12 + r → (- 8 - r) + (2 · r - 4)

How to match an expression with its simplified form

In this problem we find four cases of linear equations whose relationship with simplified forms, that is, linear equations of the a · r + b, where a, b are constants, must be found. Each relationship can be determined by using algebra properties. Now we proceed to present the conclusion for each case:

Choice A

(6 · r + 7) + (13 + 7 · r)

(6 · r + 7 · r) + (7 + 13)

(6 + 7) · r + 20

13 · r + 20

Choice B

[13 - (3 / 2) · r] -  (1 - r)

[13 - (3 / 2) · r] + (- 1 + r)

[- (3 / 2) · r + r] + (13 - 1)

[- (3 / 2) + 1] · r + 12

(- 1 / 2) · r + 12

12 - (1 / 2) · r

Choice C

(- 8 - r) + (2 · r - 4)

(- r + 2 · r) + (- 8 - 4)

(- 1 + 2) · r - 12

r - 12

- 12 + r

Choice D

(7 · r - 3 / 2) - (2 / 3 + 6 · r)

(7 · r - 3 / 2) + (- 2 / 3 - 6 · r)

(7 · r - 6 · r) + (- 3 / 2 - 2 / 3)

r + [- (9 + 4)] / 6

r + [- 13] / 6

r - 13 / 6

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converting 0.000098 into scientific notation what is the missing power of 10

Answers

Answer:

9.8E^-5 (or 9.8*10^-5)

Step-by-step explanation:

0.000098 converted to scientific notation is either 9.8E^-5 or 9.8*10^-5 as they are the same, just different ways of writing it. To get this, you just count the spaces away from the decimal point the number is.

ex.) 0.98 = 9.8E^-1 as it just has to move 1 decimal

980 = 9.8E^1 as it has to move 1 decimal to the positive side

and so on.

A composite figure is comprised of a semicircle, trapezoid, and 2 rectangles.
How can you decompose the composite figure to determine its area?

as a circle, three rectangles, and a triangle
as a circle, a trapezoid, and four triangles
as a semicircle, three rectangles, and a square
as a semicircle, a trapezoid, and two rectangles

Answers

The area of the composite figure is the sum of the area of a semicircle, the area of a trapezoid, and the area of two similar rectangles. Then the correct option is D.

What is Geometry?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

Two rectangles, a trapezoid, and a semicircle make form a composite figure.

The diagram of the composite figure is given below.

The area of the composite figure is the sum of the area of a semicircle, the area of a trapezoid, and the area of two similar rectangles. Then the correct option is D.

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Answer:

D

Step-by-step explanation:

PLEASE HELP!!!

The answer choices are:

A) −3 ≤ x ≤ 2

B). y ≥ 5.5

C). All Real Numbers

D). All real numbers less than −3 or greater than 2

Answers

Answer:

Step-by-step explanation:

cevap a ANSWER A

As a math citizen, why is it important to be able to interpret and analyze graphs?​

Answers

Data collection, analysis, and graphing are essential in the workplace. Many industries, manufacturing in particular, now use statistical control processes to monitor their processes in order to ensure quality products. Often the front line employee is required to collect the data used for charting the manufacturing process; therefore, employees at all levels should be knowledgeable about and comfortable with using a variety of charts. As more and more quality teams, consisting of a variety of employees, are charged with the task of ensuring quality products, employees will need to have an understanding of probability and sampling.

When janelle woke up it was -3 degrees Fahrenheit outside.as the morning progressed,the temperature rose 2 degrees every hour.
W hitch line on the Garth could represent this scenario

Answers

The equation to illustrate the information regarding the temperature it the temperature rose 2 degrees every hour is -3 + 2h.

How to illustrate the information?

It should be noted that an equation is used to show the relationship between the variables.

In this case, when janelle woke up it was -3 degrees Fahrenheit outside.as the morning progressed,the temperature rose 2 degrees every hour.

Let the number if hours be represented by h

Therefore, the equation to illustrate the information will be -3 + 2h

here h = number of hours.

Note that the complete information wasn't found and the equation was illustrated.

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Help now please!!
I dont understand at all and need help. pls dont comment if u dont know.

Answers

Answer:

I'm pretty sure it would be B

Step-by-step explanation:

X and Y

Answer:

am pretty sure it answer b

50pts to whoever can solve this correctly

Answers

Answer:

b^2 - 4ac ==> what's inside the square root

The answer is the 2nd option

Step-by-step explanation:

b^2 - 4ac represents the number of roots in the quadratic equation. If

b^2 - 4ac>0, then there are 2 roots in the quadratic equation. If

b^2 - 4ac=0, then there is only 1 root. If b^2 - 4ac<0, then the square root of b^2 - 4ac would be invalid since the square root of a negative number has no real solution. Hence, if b^2 - 4ac<0, then there are no roots.

Answer:

The answer should be option B. b^2-4ac

Step-by-step explanation:

...

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