Mathematics High School

A function is defined by the rule f(x) = 11 - 2x. What is the value of f(-3) ?

Answers

Answer 1

Answer:

Step-by-step explanation:

11 - 2(-3) = 11 + 6 = 17

should put -3 where x is

Related Questions

Points just solve 2 + 3 <3

Answers

Answer:

Step-by-step explanation:

Thank you <3 :)

obviously it’s 20 :D

okay but seriously thank you for the points, i hope you have a lovely day :)

A can of tuna fish has a height 1inch and the diameter of 3inches how many square inches of paper are needed for the label? How many square inches of metal are needed to make the can including the top and bottom. Round your answer to the nearest whole number use 3.14 for it

Answers

Answer:

9.4

Explanation:

Solve for perimeter to find how long the label is

2(3.14)(1.5)

Triangle ABC is a right triangle. The lengths of the legs are 60 centimeters and 80 centimeters. What is the length, in centimeters, of the hypotenuse?

Answers

Answer:

100 cm

Step-by-step explanation:

Given:

a = 60

b = 80

a² + b² = c²

60² + 80² = c²

3600 + 6400 = c²

c² = 10000

[tex]\sqrt{c^2} =\sqrt{10000}[/tex]

c = 100

Answer

100 cm

Step-by-step explanation:

What is the directrix of the parabola with the following equation?
(y - 1)2 = -4(x - 1)

Answers

Answer:

x = 2

Step-by-step explanation:

If you take my son’s age and multiply it by one and a half times his age you get 24. How old is my son?

Answers

Answer:

3/2x=24

X=48/3

X=16

pls Mark as brainliest

write the slope-intercept form of the equation of the line trough the given point with the given slope.
trough : (1, -4), slope= -8
A.y=8x+4
B.y=-8x+4
C.y=4x+8
D.y=3x+8

Answers

Given:

Point = (1,-4), Slope - 8

Point = (1,5), Slope =1

To find:

The slope-intercept forms of the given lines.

Solution:

The slope intercept form of a line is:

[tex]y=mx+b[/tex]

The point slope form is:

[tex]y-y_1=m(x-x_1)[/tex]

where, m is the slope of the line.

We have, Point = (1,-4), Slope - 8. So, the equation of the line is:

[tex]y-(-4)=-8(x-1)[/tex]

[tex]y+4=-8x+8[/tex]

[tex]y=-8x+8-4[/tex]

[tex]y=-8x+4[/tex]

Therefore, the correct option is B.

We have, Point = (1,5), Slope =1. So, the equation of the line is:

[tex]y-5=1(x-1)[/tex]

[tex]y-5=x-1[/tex]

[tex]y=x-1+5[/tex]

[tex]y=x+4[/tex]

Therefore, the correct option is D.

Find the surface area of each pyramid round to the nearest tenth if necessary

Answers

Answer:

145.9

Step-by-step explanation:

Answer: 145.9 is your answer!

Step-by-step explanation:

give the person above me Brainliest~! ✪ ω ✪

Have a great rest of your day~ ヾ(•ω•`)/

Combine like terms for the following expressions:

5−2x+3+8x

Answers

Answer:

6x+8 is ur answer

A kangaroo hops 2 kilometers in 4 minutes. How far can the Kangaroo hop in 10 minutes?

Answers

Answer:

5 km

Step-by-step explanation:

10/4 = 2.5

2 x 2.5 = 5

Answer:

5 Kilometers

Step-by-step explanation:

Simply divide 2 by 4 and multiply the number you get by 10.

PLEASE HELP MEEEEEEEEEEEEE

Answers

64. The trapezoid can be turned into a huge square. So you multiply the width by the length

multiply width by length maybe sorry trying my best

Sophie invested 5,000 into an account that will increase in value by 2.3% each year. Write a function to model this situation, then find the value of the investment after 15 years

Answers

Answer:

$6725

Step-by-step explanation:

Given data

Princiapal= $5000

Rate=2.3%

Time= 15years

The function that will model this situation is given as

A=P(1+rt)

The above function is a simple interest function

Substitute our data we can find the amount A

A=5000(1+0.023*15)

A= 5000(1+0.345)

A=5000(1.345)

A=5000*1.345

A=$6725

Hence the value of the investment after 15 years is $6725

A prism has total surface area of 360 m2 and volume of 60 m². If the length, width,
and height are doubled their original sizes, what will be the new volume?
o 360 m3
o 480 m
o 120 m2
o 1,620 m

Answers

Answer:

480

Step-by-step explanation:

I did the test and this is what it said in the review.

The new volume of the prism is 480 m³, option B is correct

What is Three dimensional shape?

A three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

The total surface area of the prism is given by:

2lw + 2lh + 2wh = 360

Dividing both sides by 2, we get:

lw + lh + wh = 180

The volume of the prism is given by:

lwh = 60

Multiplying both sides by 8, we get:

8lwh = 480

Substituting 2l, 2w, and 2h for l, w, and h, respectively, we get:

(2l)(2w)(2h) = 8lwh

(2l)(2w)(2h) = 480

Simplifying, we get:

(2l)(2w)(2h) = 8lwh

8lwh = 480

Therefore, the new volume of the prism is 480 m³, option B is correct

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HELPPP QUICK PLS I WOULD GIVE YOU THE BRAINIEST PLSSS HELPP MEEE BEFORE I HAVE A BREAKDOWN PLS What is the midpoint of a line segment with endpoints at (-4,15) and (22, 3)?

Answers

Answer:

(5.5, 12.5) OR (11/2, 25/2)

I would put in the decimal value as the answer, but of you like then you can add the fraction as an answer.

Step-by-step explanation:

We are given the endpoints (-4, 15) and (22, 3) to find the midpoint. In order to find the midpoint, we will use its formula.

Midpoint formula :- (x1 + x2 / 2, y1 + y2 / 2)

(x1 + x2 / 2, y1 + y2 / 2)

(-4 + 15 / 2, 22 + 3 / 2)

(11 / 2, 25 / 2) ---> (5.5, 12.5) Midpoint

Hope I answered your question. Stay safe, happy, and healthy, thank you :) !!

finding the distance from (–6, 2) to the origin. Use (0, 0) as (x1, y1). d = StartRoot (x 2 minus x 1) squared + (y 2 minus y 1) squared EndRoot What is the difference of the x-coordinates, (x2–x1)? What is the difference of the y-coordinates, (y2–y1)? What is the distance from (–6, 2) to the origin?

Answers

Answer:

2√10

Step-by-step explanation:

Given the coordinates (-6, 2) and (0,0)

We are to find the distance between the coordinates. Using the distance formula;

d = √(x2-x1)²+(y2-y1)²

d = √(0-2)²+(0+6)²

d = √(-2)²+(6)²

d = √4+36

d = √40

d = √4*10

d = 2√10

Hence the required distance is 2√10

Please help, I am extremely bad at graphing.

Answers

The correct answer is c

Find the surface area of the cone in terms of pie

Answers

Answer:

SA = 80π

Step-by-step explanation:

SA = πr² + πr·slant height

(50 POINTS) Math Inverse Functions please help

Answers

Answer:

See below.

Step-by-step explanation:

a. See pic below.

b. Yes because it passes the vertical line test. Any vertical line moving horizontally across the graph intersects only one point on the graph at a time.

Domain: all real numbers

Range: all real numbers greater than or equal to 4

Domain: all real numbers greater than or equal to 4

Range: all real numbers

See pic below.

f. No because it does not pass the vertical line test.

Calculate the area of a parallelogram with a 4 inch side, a 10 inch side, and 3 inches tall

Answers

Answer:

Step-by-step explanation:

Assuming your parallelogram looks like the one in the attached image.

The area of a parallelogram is base x height, [tex]A=bh[/tex].

The base is 10; the height is 3, so A = 10 x 3 = 30.

Answer:

Step-by-step explanation:

please please help asap and show the work! no links

Answers

hello

the angles make up co-interior so the two would add up to 180º.

so we can set up a basic equation:

3x-10+5x-30=180

add like terms:

8x-40=180

add 40 to both sides:

8x=220

divide by 8

x=27.5º

hope this helps and have a good day :)

Kahn starts a savings account with$14. He will put in an equal amount each week. After 7 weeks, he will have $56.
Rate of change per week_____
Initial value_____?
Help please

Answers

Answer:

The rate of change per week is $6.

Step-by-step explanation:

56 - 14 = 42

42/7 = $6

6 dollars were added each week.

Which statement about triangles is NOT true?

The sum of the measures of the interior angles of any triangle is equal to 180°.

The sum of the measures of the interior angles of any triangle is equal to 360°

All triangles have at least 2 acute angles.

An isosceles triangle has two equivalent angles.

BEST ANSWER GETS BRAINLIEST

Answers

Answer:

I believe the second is wrong

First correct answer will get Brainliest, 30 mins to answer! 25 points
Dora has three candles, which will burn for 3, 4 and 5 hours, respectively. If she wants to keep two candles burning at all times, what is the greatest number of hours she can burn the candles? (Dora has a clock that she can use to time the candles.)

Answers

Answer:

4 hours

Step-by-step explanation:

As she wants to keep two candles burning so after3 hours only 2 candles will remain and after 4 hours only one but till 4 hours 2 candles would be burning that what she wanted so its 4 hours

If Dora burns candles that burn for 4 and 5 hours, they combine to burn for 9 hours.

What are permutation and combination?

Combination and permutation are two alternative strategies for organizing elements of a set into subsets in mathematics. The subset's components can be recorded in any order when combined. The components of the subset are stated in a separate order in a permutation.

Dora has three candles that will burn for 3, 4, and 5 hours, respectively.

The combination of the hours of burning,

3 + 4 = 7 hours

4 + 5 = 9 hours

3 + 5 = 8 hours

0.5% convert to decimal

0.5/100=0.005

We need to calculate what is 0.5 percentage of 2.44.

0.005×2.44=0.0122

The cost increases after one year i.e is twelve months.

0.0122×12=0.1464

Now add 0.1464 with 0.0122

2.44+0.1464

Two point five eight six four.

=2.5864

Hence 2.5864 is the price of gas after one year.

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Giving brainliest, easy question

Answers

Answer:

502.4

Step-by-step explanation:

a=3.14*80*80

a=20,096/4

a=502.4

Answer:

Yea

Step-by-step explanation:

502.4

Find the volume of a right circular cone that has a height of 19.4 cm and a base with a diameter of 9.9 cm. Round your answer to the nearest tenth of a cubic centimeter.

Answers

Answer:

V = 497.8 cm^3

Step-by-step explanation:

Thats Righttt

The volume of the cone is 1592.6 cm³

What is volume?

Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.

The right circular cone's vertex is immediately above the base's centre. The line connecting the vertex with the centre point of the base is perpendicular to the cone's radius. A cone, on the other hand, can have its vertex anywhere.

Given that, a right circular cone with the height of 19.4 cm and a base with a diameter of 9.9 cm. we need to find the volume,

Volume of cone = 1/3 × π × radius² × height

= 1/3 × 3.14 × (9.9/2)² × 19.4

= 1592.6 cm³

Hence, the volume of the cone is 1592.6 cm³

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