Evaluate the function
f (x) = 1/2 x + 3
for f(4).
a.
5
b.
9
c.
11
d.
14

Answers

Answer 1

Answer:

a

Step-by-step explanation:

To evaluate f(4), substitute x = 4 into f(x), that is

f(4) = [tex]\frac{1}{2}[/tex] × 4 + 3 = 2 + 3 = 5

Answer 2
Answer is 5 so A would be correct
f(x)= 1/2 (4)+3=5

Related Questions

Round 72.178 to the nearest hundredth.​

Answers

Answer:

72.18

Step-by-step explanation:

The hundreth place is the second to the right of the decimal. So the number in the hundreths place is 72.178. When rounding, you look at the number behind the number you are rounding to. In this case, you want to look at the 8. If the number is 5 or above, you round up. 8 is above 5 so you round the 7 to an 8.

Answer: 72.18

Step-by-step explanation:

hope this helps

PLEASE HELP!!! If the simple interest on $7,000 for 5 years is $2,100, then what is the
interest rate?
formula.
2100 = 7000 .r: 5
Solve for r.
re
(Simplify your answer. Type an integer or a decimal.)

Answers

Answer:

46.66

Step-by-step explanation:

A package designer wants the hexagonal base of a hat box to have an area of

about 200 in.2. About how long is each side?

Answers

Answer:

About 9inches long

Step-by-step explanation:

Area of a hexagon = 3√3/2 a²

a is the length of each side

Given

Area of the hexagon = 200in²

Substitute

200 = 3√3/2 a²

200×2 = 3√3 a²

400 = 3√3a²

a² = 400/3√3

a² = 400/5.196

a² = 76.982

a = √76.982

a = 8.774

Hence the length of each side is about 9inches long (to nearest inches)

Each square is one square unit. Sienna uses the same square units to draw a 6 x 2 rectangle and says that it has the same area as the 3 x 4 rectangle. Is she correct?

Answers

Answer:

Yes, Sienna is correct because 6 times 2 is 12 and 3 times 4 is 12.

Find the value of x so that f(x)=3

Answers

Answer:

f(x) = (1/3)x - 2  

f(x) = (1/3)(3) - 2  

f(x) = 1 - 2  = -1

Step-by-step explanation:

f(x) usually refers to a function not a multiplication of two variables

Farid thinks last month was unusually rainy in his town—they had 6 inches of rain! His town's current record for rainfall in a year is 2 feet. Farid wonders what the new record would be if they were to keep getting this much rain for an entire year. If Farid's town had 6 inches of rain every month for 12 straight months, by how many feet would they beat the annual record?

Answers

They would beat the annual record by 4 feet

Expand and simplify the following:

(5+2d)(2+3d+d²)

Must show working !! Will give brainliest :)

Answers

Answer: 2d³+11d²+19d+10

Step-by-step explanation:

Use the FOIl method to simplify this

FirstOuterInnerLast

-------------------------------------------------------------------

 (5+2d)(2+3d+d²)

=10+15d+5d²+4d+6d²+2d³ ⇔ Expand using FOIL

=2d³+(5d²+6d²)+(4d+15d)+10 ⇔ Put like terms together

=2d³+11d²+19d+10 ⇔ Combine like terms

Hope this helps!! :)

Please let me know if you have any questions

Answer: 2d³+11d²+19d+10

Step-by-step explanation: first we rearrange terms (5+2d)(2+3d+d²) into (2d + 5)(2 + 3d + d^2) then we do Rearrange terms again and then we Distribute and combine like terms and get our answer.

A ladder is 12 metres long . It leans against a wall with one end on the ground 7 metres from the wall. The other end just reaches a windowsill. Calculate the height of the windowsill above the ground.

i need an explanation please...

Answers

Answer:

window sill height =9.75 meters

Step-by-step explanation:

Ladder^2=height^2+length^2

12^2=height^2+7^2

144=height^2+49

height^2=144-49=95

height=9.75

A high school soccer team has 3 freshmen, 4 sophomores, 6 juniors, and 7 seniors. Two random players will be chosen by the coach to lead the warm up. What is the probability that the coach will select a sophomore then a senior?

A. 7/95
B. 7/100
C. 4/75

Answers

4/20 (sophomore) x 7/20 senior = 28/40 > simplified to 7/10. Is B supposed to be 7/10 not 7/100?
The correct answer is A

Four positive whole numbers add up to 39 one of the numbers are a multiple of 7 the other three are equal workout the result when the four numbers are multiplied

Answers

Answer:

Number is 4536

Step-by-step explanation:

Assume;

Same number = a

Multiply of 7 = b

So,

a+a+a+b = 39

3a + b = 39

Use b = 7

3a + b = 39

3a + 7 = 39 (Not possible)

Use b = 14

3a + b = 39

3a + 14 = 39 (Not possible)

Use b = 21

3a + b = 39

3a + 21 = 39

a = 6

So,

Number is 6 x 6 x 6 x 21

Number is 4536

I need help please ):
And if u don’t know the answers do not comment anything because i'm really looking for help!

Answers

Answer:

x=16

Step-by-step explanation:

Evaluate: 4+8 divided by 2x (6-3)

Answers

Answer:

Step-by-step explanation:

(4+8)/(2x(6-3)) = 12/(2x(6-3))  = 12/6x = 2/x

Answer:

2x

Step-by-step explanation:


pls help me with this multiple choice !

Answers

Answer:

D

Step-by-step explanation:

[tex] \sin(60) = \frac{ \frac{5 \sqrt{3} }{2} }{a} \\ a = \frac{ \frac{5 \sqrt{3} }{2} }{ \sin(60) } = 5 \\ \cos(60) = \frac{b}{5} \\ b = 2.5 = \frac{5}{2} [/tex]

What steps would you use to solve this equations for x? *

Answers

Answer:

x=-24

Step-by-step explanation:

Multiply both sides by 4 to get x=-24

[tex]\\ \rm\hookrightarrow -6=\dfrac{x}{4}[/tex]

Multiply 4 on both sides

[tex]\\ \rm\hookrightarrow x=-6(4)[/tex]

[tex]\\ \rm\hookrightarrow x=-24[/tex]

please help me please I really need the answer worth 20 points

Answers

Answer:

3:1, 24 gallons blue 8 gallons yellow

Step-by-step explanation:

Jenny will use 24 gallons of blue paint and 8 gallons of yellow paint

Their ratio is 24:8 = 3:1

During her first 6 moths, Susie gained 25% more than her birth weight. If she gained 2 1/2 pounds during this period, how much did she weigh at birth?

Answers

25% = 2.5 pounds
25 x 4 = 100%
2.5 x 4 = 10 pounds :)

I had $13.00. My mom gave $10.00 my dad gave $30. My Aunt, My uncle and grandma gave me $100. I had another $7.00. How much did I have?

Answers

$160 (if uncle, granny, aunt, gave $100 in total) $260 if they gave $100 each

Answer:

$360.00

Step-by-step explanation:

$13.00 + $10.00 + $30.00 + $100.00 + $100.00 + $100.00 + $7.00 = $360.00

I hope this helps you :D

Which expression is equal to the expression below?
(7•2)^7

Answers

option A is the right answer
Option A is the correct answer

3+{2×(8-4+6)}-5-{9+4-[3×(1-5)]}​

Answers

Answer:

Step-by-step explanation:

Alright all we need to know is to understand our brackets

So 3+{2×(8-4+6)}-5-{9+4-[3×(1-5)]}​

3+20-5-9+4-3(1-5)

Step 2

3+20-5-9+4-3(1-5)  Simplify

18-9+4-3(1-5)

Step 3

18-9+4-3(1-5)

13-3(1-5)

13-(-12) Here is the tricky part (We aren't going to subtract because the brackets multiply the equations

So,

13+12=25

Your answer is 25

please help me ASAP this is very important explain for brainlist.

Answers

Answer:

A= 320 in^2

Step-by-step explanation:

A = 1/2 (d1)(d2)

A = 1/2(20)(32)

A= 320 in^2

2x-10>-14
Pls help ASAP pls

Answers

Answer:

the answer should be x>-2

Answer:

download photo math

Step-by-step explanation:

+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

If you wanted to figure
out how much air is in
a basketball, would
you use plane
geometry or solid
geometry?

Answers

Answer:

solid gemontery

Step-by-step explanation: Plane geomentry is flat and soild is balls sqaures and other types of shapes.  

I need help on this homework

Answers

(-9x²-2x) - (-9x²-3x) = (-9x²-2x) +(9x²+3x) = -9x²-2x+9x²+3x = (-9x²+9x²)+(-2x+3x) = x

Please help a girl out I'm so confused

Answers

Answer:28

Step-by-step explanation: 7x4 Equals 28 basketballs

X = 7

Y = 6

Y = 24

X = ?

24/6=4

7x4 = 28

Your answer is 28

Which of the following are point slope form of the line going through (-4,6) and (1,2)

Answers

Answer:

answer in comment

Step-by-step explanation:

So, we have to find the slope of the line. We are given two points, so we can use those:

(x1,y1) = (-4,6)

(x2,y2) = (1,2)

m = (y2-y1)/(x2-x1) = (2-6)/(1--4) = (2-6)/(1+4) = -4/5

Also, we know that point-slope is of the form:

(y-y1) = m*(x-x1)

It doesn't matter which point you use, though, you can also use:

(y-y2) = m*(x-x2)

So we can plug the variables into the equation and get:

(y-2) = -4/5*(x-1)

OR

(y-6) = -4/5*(x+4)

2. Emma knows that her mix of 5 cups of orange juice to 2 cups of ginger
ale will create enough drink for 7 people. If she is looking to create
enough drinks for 28 people, how many cups of orange juice will she
need? *

Answers

Answer:

11 1 /2 ( 11 and a half)

Step-by-step explanation:

If you noticed 7 and 2 are five numbers away.

To solve this I just added one to both of them until the sum was equal to 28.

If I had added one to 16 and 11, it would have given me 29, so I added a half.

That gave me 28.

Please answer asap, Due at 11:59!! ( giving brainliest )

Select the equation and solution for the problem. Let x represent the unknown number.
A total of 15 people on a sports team are riding in 3 vans. How many people are riding in each van if each van is carrying the same number of people?

Answers

Answer:

C

Step-by-step explanation:

So your total is 15. There are 3 vans, and we want to know how many are on each van.

3 (number of people on each van)=15

Number of people are unknown

3x=15

Divide both sides by 3 to solve for x

x=5

A farmer has just tilled her 51-yard by 68-yard field. To survey her field, the farmer begins in one corner and walks the length of the field. She then turns and walks the width before crossing diagonally across the field to the original corner. How far does the farmer walk?

Answers

Answer: l +w+ hypotenuse or 204

Step-by-step explanation: so the farmer walks the length then the width of the field then the diagonal which we don't know using pythagorean to find that last side then add the values 51^2+68^2=c^2 and 51+68+85= 204

If you get the answer just give me the full answer please. No matter the length.

Answers

Answer:

CD = 4

Step-by-step explanation:

I believe you know the geometric mean for altitudes?

CD = √AD * DB = √8 * 2 = √16 = 4

If you are not aware of this theorem, then use the similarity of triangles.

ADC ~ CDB

AD/DC = CD/DB (cross-multiply)

CD^2 = AD*DB,

CD = √AD * DB = √8 * 2 = √16 = 4

Find the percent of discount for a $38,000 car that is on sale for $33,500. Answer to the nearest percent.

Answers

Answer:

i think its 12%

Step-by-step explanation:

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