Can someone please help me with my math corrections?​​

Answer:

f-¹(x) = (x-1)/2

Step-by-step explanation:

switch the x and y then solve for y

x= 2y +1

x- 1 = 2y

y = (x-1)/2

Answer:

[tex]F^{-1}[/tex] (x) = [tex]\frac{x}{2}[/tex] - [tex]\frac{1}{2}[/tex]

Hope this helped!

Answer:

30

Step-by-step explanation:

1/2 x (a+b) x h = area

1/2 x ( 40 + x ) x 50 =  1750

1/2 (40 + x )= 1750/50

20 + 1/2x = 35

1/2 x = 35 - 20

x = 15 x 2

= 30

I hope this is right :)

YOU AINT GOT THE ANSWERS MAN IMAO

Answer:

f the x and y coordinates form proportional relationships, then there is some non-changing number (a constant) that when multiplied times x will create y

Step-by-step explanation:

Answer:

area = length × width use this formula

Answer:

Step-by-step explanation:

Combine like terms. ie, add the coefficient of like terms

y + y + y + 3 + 4 = 3y + 7

Answer:

Combine like terms.

First, the variables:

y+y+y=3y

Now the constants:

3+4=7

Answer: 3y+7

Step-by-step explanation:

Answer:

i think its 21.90

Step-by-step explanation:

i did the math

Answer: 720

Step-by-step explanation:

5%=36

1%=36/5

1%=7.2

100%=7.2*100

100%=720 students

There is a total of 720 students are in Ridgewood Junior High School.

Given,
All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday.
5% of students brought their lunch.
36 students brought their lunch.
To determine how many students in total are in Ridgewood Junior High School.

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Let there be x students in the Ridgewood Junior High School.
5% of students brought their lunch and equal to 36
so 5% of x = 36
5/100 * x = 36
x = 36*100/5
x = 36*20
x = 720

Thus, there is a total of 720 students are in Ridgewood Junior High School.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ2

Answer:

The area is 902[tex]cm^{2}[/tex]

Step-by-step explanation:

  [tex](\frac{33.9}{2})^{2}[/tex] * 3.14

= [tex]16.95^{2}[/tex] * 3.14

= 287.303 * 3.14

≈ 902[tex]cm^{2}[/tex]

Answer:

The volume of the concrete needed to make the block is 5054 ft³

Step-by-step explanation:

The question relate to the calculation of the volume of a shape

The dimensions of the block are;

The depth of the block, d = 19 ft.

The width of the block, w = 19 ft.

The length of the block, l = 14 ft.

The volume of a cube, V = Length, l × Width, w × Depth, d

Therefore, the volume, 'V' of a cubic block is given as follows;

V = l × w × d = 14 ft. × 19 ft. × 19 ft. = 5054 ft.³

The volume of the concrete needed to make the block = The volume of the block, V = 5054 ft³.

Answer:

the answer is 10a+11x

Step-by-step explanation:

2a+3a+5a=10a

3x+2x+6x=11x

Answer:

Step-by-step explanation:

So first you multiply 6 by 55. That equals 330. Then, you divide that by 44. That equals 7.5. Therefore, Pablo runs 7.5 miles in 44 minutes.

Answer:

Step-by-step explanation:

a)-7

b)1

c=-9

Answer:

y=-4x+5

Step-by-step explanation:

this is the equation for the line :y=mx+c

m is the slope

c is the y-intercept

4 is negative because the line is negative

Answer:

9: -9

10: 18

11: 40

12: -4.5

1st number:-9

2nd number: -180

3rd number: -9

Step-by-step explanation:

I did it on paper but typed it on this stuff so you can understand it

PLEASE GIVE ME BRAINLIEST AND THANK YOU FOR THIS CHALLENGE VERY EASY TO DO.

Answer:

-9,4.5,90

Step-by-step explanation:

9) [tex]\frac{12xy}{x-y}[/tex]

So you basically substitute the values in for x and y which give you

[tex]\frac{12(3)(-1)}{3-(-1)}[/tex]

[tex]\frac{12(-3)}{3+1}[/tex]

[tex]\frac{-36}{4} \\-9[/tex]

10)    Same thing:

[tex]\frac{4xy}{2x} \\\\\frac{4(3)(9)}{2(3)} \\\\\frac{4(27)}{6} \\\\4.5[/tex]

11)  Same for this:

[tex]\frac{2}{3}(9x+xy)\\\\ \frac{2}{3}(9(5)(3)\\\\\frac{2}{3}( 135)\\[/tex]

3*45=135

[tex]2(45)\\90[/tex]

Based on this information, I want you to figure out the last one. If you need help reply to this answer and I will respond.  

Answer:

I think it is 94 hope it works

Answer:

4a+4b

Step-by-step explanation:

Answer:I need help too for that :(

Step-by-step explanation:

Answer:

Step-by-step explanation:

The end behavior of a function describes the behavior of the graph of the function at the "ends" of the x-axis.

The given function is ⇒⇒⇒ f(x) = 2x³ – 26x – 24

the given equation has an odd degree = 3,

and a positive leading coefficient = +2

So, the end behavior of the given function

f(x) → +∞  as  x→+∞

f(x) → -∞  as  x→-∞

Answer:

2/9

Step-by-step explanation:

Scale factor = 10/45 = 2/9

Answer:

AB = 8

AD = 10

<A = 118

<D = 62

Step-by-step explanation:

1. AB

Because opposite sides in a parallelogram are equal, DC = AB = 8.

2. AD

Because opposite sides in a parallelogram are equal, BC = AD = 10.

3. <A

Adjacent angles are supplementary in a parallelogram, so A = 180 - 62 = 118

4. <D

Opposite angles are equal in a parallelogram, so B = D = 62

Answer:

AB = 8

AD = 10

m∠A = 28°

m∠D = 62°

Step-by-step explanation:

A few facts to remember about a parallelogram.

1.  Opposites sides are congruent

2.  Opposites angles are congruent

3.  Consecutive angles are complementary

So, AB = 8,  AD = 10,  m∠A = 90 - 62 = 28°, m∠D = 62°

Step-by-step explanation:

I even wanted to help but I also don't know

Answer:

33.3

Step-by-step explanation:

use tan

tan(39) = opposite / adjacent

tan(39) = 27 / x

x = 27/ tan(39)

x = 33.3

hope this helps,

have a good day

Answer:

b. SAS

Step-by-step explanation:

These triangles can be proven congruent through SAS, or side, angle, side. SAS is used when two sides and one included angle are congruent. For an angle to be included, it must be in between the other two sides. This means the angle's rays are the congruent sides. If two lines have an equal number of tick marks, or if two angles have an equal number of arcs, then they are congruent. In this image, two line pairs are marked as congruent as well as the included angle. Therefore, the correct answer is B. SAS.

Answer:

y=-14x+170

Step-by-step explanation:

y=mx+b

2=-14(12)+b

2=-168+b

170=b

y=-14x+170

Answer:

18 quarters

Step-by-step explanation:

Answer:

18 quarters 12 dimes

18 x 25 = 450

12 x 10 = 120

18 + 12 = 30

450 + 120 = 570

Therefore, there are 18 quarters.

Answer:

The answer is $12.78

Step-by-step explanation:

Answer:

So if you want to find 6% sales tax for an item costing $12, simply move the decimal point to the left two places and multiply. You will write 6% as . o6. Now multiply that by 12 to find the sales tax.

Step-by-step explanation:

Calculating Total Cost. Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.

Calculating sales tax on a product or service is straightforward: Simply multiply the cost of the product or service by the tax rate. For example, if you operate your business in a state with a 6% sales tax and you sell chairs for $100 each, you would multiply $100 by 6%, which equals $6, the total amount of sales tax.

Answer:

∠KNM is congruent to ∠KLM

Answer:

2.3×10/10=23/10=2 3/10 is mixed number