Mathematics Middle School

If f (x) = x

2 − 2 x , g (x) = x − 2

1) prove that : f(2) = g(2)
2) If g (K) = 7 , find : the value of k

Answers

Answer 1

Answer:

A I had a test like this sorry if it's wrong

Step-by-step explanation:

say it out loud ask a parent if I need help at home

Answer 2
A I had a test on this

Related Questions

Can someone pls help

Answers

Answer:

b = 6

Step-by-step explanation:

steps are in the picture above

Answer:

b = 7

Step-by-step explanation:

using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex] , then

[tex](-14)^{8}[/tex] × [tex](-14)^{b}[/tex] = [tex](-14)^{15}[/tex]

[tex](-14)^{(8+b)}[/tex] = [tex](-14)^{15}[/tex]

since the bases on both sides are equal, both - 14, then equate exponents

8 + b = 15 ( subtract 8 from both sides )

b = 7

I need help ASAP!! PLEASE

Answers

Answer: -x+5

Explanation:

The file I shared is self-explanatory enough.

-x+5 It’s self explanatory

Select and solve the inequality

Ryan is a wrestler trying to make weight. He currently weighs 200 lbs. If he cuts 2 lbs. per week, how many full weeks will it take him to weigh less than 175 lbs.? Choose an inequality below and solve it.



2w+175 <200 -2w+ 200 < 175



-2w+ 200 175 -2w+ 200 > 175



a.) 13 weeks b.) 12 weeks c.) 14 weeks d.) 10 weeks

Answers

Answer:

Step-by-step explanation:

The correct option is C More than 12.5 Weeks Let x be the number of weeks, then 200 − 2 x < 175 ⇒ 2 x > 200 − 175 ⇒ 2 x > 25 ⇒ x > 12.5 So, More than 12.5 Weeks is the answer.

ANSWER 12

Answer:

Step-by-step explanation:

A.13w, 13 weeks will get him down to 174lbs, 12 weeks would only get him 176lbs, so the minimum/full amount of weeks he needs to get down to less than 175lbs is 13.

Equation:

w=2

13w=26

200-26=174.

AD, BE, and CF are all diameters of the circle. The measure of angle AOB is 40 degrees. The measure of angle DOF is 120 degrees.



Find the measures of the angles:


BOC :

COD :
(Image is attached)

Answers

is a center so angle
cof =180 angle cod +dof =180
so angle cod=60
BOC : 80 degrees
COD : 20 degrees

Write an equation that reflects this relationship using to represent the amount of fish in grams and to represent the number of calories.

Answers

Answer:

y=3/4x

Step-by-step explanation:

If the line goes over by 30 and up by 40, it is 40y=30x, and simplified and in slope-intercept form, it is y=3/4x

Answer:
V=3/4x
Step-by-step explanation:
If the line goes over by 30 and up by 40, it is 40y=30x, and simplified and in slope-intercept form, it is y=3/4x
So that will be the answer

help me please :((( :)))

Answers

Answer:

YZ=14

Step-by-step explanation:

[tex]\frac{12}{56} = \frac{3}{x} \\\\12x=56*3\\12x=168\\x=168/12 \\x=14[/tex]

All info is in the image.

Answers

Answer: It might be negative one.

Step-by-step explanation: Maybe. I'm learning this in my math class. So I still don't fully understand yet.

It may be negative one

Estimate the value of each quotient. Drag each division problem to the correct category shown below. Do not find the actual quotient when solving this problem.

2
,
456
÷
12

526
÷
26

3
,
012
÷
42

6
,
960
÷
57

1
,
590
÷
35

Quotients between 10 and 100


Quotients between 100 and 1,000
helpppppppppppppp

Answers

Answer:

answer...loading...

I think I can help, but I need to see an imagine.

help me plaese :))))))))))

Answers

Answer: B

Step-by-step explanation:

wild guest but I  tried

the second one hope it helps

There is a of cubes. Stage I has 1 cube, Stage II has 4 cubes, and stage III has 10 cubes. How many cubes will there be in Stage IX?

Answers

stage ix will have 19 bcs we are adding 3,6,9

There are 135  cubes will be there in stage IX.

What is cube?

A cube is indeed a three-dimensional solid object in geometry that is surrounded by six square faces, facets, or sides, three of which meet at each vertex. One of the five Platonic solids, the cube seems to be the only regular hexahedron. It has 8 vertices, 6 faces, and 12 edges.

Given:
There is a of cubes.

Stage I has 1 cube, stage II has 4 cubes and stage III has 10 cubes.

So, we add 3, 6, 9 that means multiple of cubes in each stage.

So, the fourth stage has 10 + 9 = 19 cubes.

Stage IV has 19 + 12 = 31 cubes.

Stage V has 31 + 15 = 46 cubes.

Stage VI has 46 + 18 = 64 cubes.

Stage VII has 64 + 21 = 85 cubes.

Stage VIII has 85 + 24 = 109 cubes.

Stage IX has 109 + 27 = 136 cubes.

Therefore, there are 136 cubes will be there in Stage IX.

To know more about the cubes, click on the link

https://brainly.com/question/26726803

#SPJ2

A circle, can be separated into at most seven parts by drawing 3 lines through it. What is the greatest number of parts into which 5 straight lines will divide a circle?

Answers

Firstly consider: How many parts a circle can be divided into using 3 straight lines? The answer is no more than seven. The conclusion is the lines cannot be straight. So one way is with a curved line and two straight lines

0.8 because 3 divided by 5 is 8

When multiplying the fractions StartFraction 1 Over 6 EndFraction and StartFraction 7 Over 8 EndFraction, what is the product of the numerators?

Answers

Answer:

7

Step-by-step explanation:

1/6 × 7/8

1×7=7

6×8=48

:)

1/6 x8/7 =8/42 it will be this buy you keep changing Flip it always give you answer

PLEASE HEEEEELP And sorry all i have's 10 point's i'll brainly u tho

Answers

replace the unknown number with x and write the equation -4(x-15)=-60

-4(x-15)=-60

-4x + 60 = -60 distributive property

-4x + 60-60 = -60-60 subtract 60 from both
sides of the equal sign

-4x/-4 = -120/-4 divide -4 from both
sides

x = 30. the answer is 30
30 because u replace the unknown number with x and write the equation -4(x-15)=-60
-4(x-15)=-60
-4x + 60 = -60 distributive property
-4x + 60-60 = -60-60 subtract 60 from
both
sides of the equal sign
-4x/-4 =-120/-4 divide -4 from both sides

help be please whoever's right will get brainiest :")

Answers

Answer: the answer is a

Step-by-step explanation: wild geuse

Confident that this is A

Write each number as a product using the GCF as a​ factor, and apply the Distributive Property. 63+ 49 +77

Answers

Answer:

189

Step-by-step explanation:

63

+

49

+

77

63+49 = 112 + 77 = 189

7 is the answer to this problem I think

Determine whether the pair of figures is sounds. Explain your reasoning.

No the shapes are not similar because they are different sizes

Yes, there’s similar because they are both right tangles

Yes, there are similar because they have proportional sidelines an equal angle measures

No, they are not similar because we don’t know the measure of the angles

Answers

The third one

Proportional sidelines and equal angle measures
The third one becauseI did it

Three-fifths of the students in a room are girls. One-third of the girls have blond hair. One-half of the boys have brown hair. What fraction of all the students are boys without brown hair?

Answers

If you work it out you will figure it out because it’s a question for you to answer not anyone else

Which weather condition is most likely to occur in areas receiving little solar energy?
A.
evaporation
B.
fog
C.
snow
D.
rain

Answers

The answer is C

Snow is the correct answer

the answer is c, snow.

For triangle XYZ, m∠X = (7g + 12)° and the exterior angle to ∠X measures (2g + 60)°. Find the measure of ∠X and its exterior angle.

Interior angle = 49°; exterior angle = 131°
Interior angle = 131°; exterior angle = 49°
Interior angle = 96°; exterior angle = 84°
Interior angle = 84°; exterior angle = 96°

Answers

Step-by-step explanation:

the sum of the interior and the exterior angle must be 180°.

7g + 12 + 2g + 60 = 180

9g + 72 = 180

9g = 108

g = 12

interior angle = 7×12 + 12 = 96°

exterior angle = 2×12 + 60 = 84°

The price of a DVD is $19 . This price is 12% lower than last week.

What was the price of the DVD last week?

Round your answer to the nearest cent

Please help

Answers

Answer:21.28

Step-by-step explanation:

21.28 should be the anwser :)

Find the values of the ratios (red to blue) if the perimeters and areas of the similar figures. Write the ratios as fractions in simplest form.

Red rhombus(11)
Blue rhombus(6)

The ratio of the perimeter is ____.
The radio of the area is ____.

Answers

Answer:

11/1 and 6/1

Step-by-step explanation:

I hope this helps

11/1 and 6/1 this should be it

Seventh grade

S.6 Solve one-step equations

Solve for u.

u + 32 = 812

u =

Answers

Answer: 780

Step-by-step explanation:

812-32=780

so u = 780

780 is the answer to U

Please help asap!! Thanks ♡♡

Answers

Hey there!


3/5

3 ÷ 5

= 0.60


0.60 × 100

= 60%


Therefore, your answer should be:

60%


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

BCD is a straight line.
Triangle ABC is equilateral.
CE=DE
Work out the size of angle x.

Answers

The size of angle x is 44°.

Each equilateral triangle angle is measured at 60°.

∠ACB = 60°.

If two triangle sides are congruent, then the angles opposite those sides are also congruent.

∠CDE = ∠DCE

According to Angle Sum Theorem: ∠CDE + ∠CED + ∠DCE = 180°.

Substitute ∠CDE = ∠DCE into ∠CDE + ∠CED + ∠DCE = 180°

∠DCE + 28° + ∠DCE = 180°

∠DCE = 76°

The Angle Addition Postulate and the notion of a straight angle:

∠ACB + ∠ACE + ∠DCE = 180°

Substitute ∠ACE = x, ∠ACB = 60, ∠DCE = 76 into ∠ACB + ∠ACE + ∠DCE = 180°

60° + x + 76° = 180°

x = 44°

Learn more about Congruency at

https://brainly.com/question/12413243?referrer=searchResults

The answer to this is 44 because x is equal to 44

Which arrangement shows the integers in order from least to greatest?

A. −4, 6 , −3 , 8

B. −7, −3 , 4 , 8

C. 5 , −8 , 4 , −3

D. −5 , 3 , 7 , −3

Answers

B explaination -7 is least than -3 and -3 is least than 4 and 4 is least that 8
It is B. The number -7 is less than -3 and -3 is less than 4 and 4 is less than 8

The diameter, in miles, of a large asteroid called Vesta can be found using the expression 5w^(2) - (4y^(2) - z^(3)) - 56. Evaluate this expression for w=9 ,y=25, and z=5.

Answers

Answer:

-8156

Step-by-step explanation:

5x9=45 x 45 = 2025 - 4x25=100x100=10000 - 125 -56

The answer is -8156

Ian has 120 folders to file. So far, he has filed 36 of the folders. What percent of the folders does he have left to file?
help pls pls pls pls pls i will give brainlliest

Answers

He has 56.8 percent left

Explanation: 36 out of 120 is 43.2%, 100 total % minus 43.2 completed % is 56.8%

I hope this helps you!

Answer:

70%

Step-by-step explanation:

A pilot is flying an airplane at an average altitude of 32,000 feet above the ground. Due to strong winds, the pilot decides to fly 4,000 feet lower to avoid excessive turbulence. It takes the pilot 3.5 minutes to make this adjustment. Interpret the quotient to describe the rate of change in the plane’s altitude. Give your answer to the nearest hundredth.
The quotient that best represents the rate of change in the plane’s altitude is___feet/minute.

Answers

The planes altitude is 65 feet

Answer:

The plane altitude is 65 feet.

Find out more about Planes here

Look at the desert image.

A baseball used by a professional baseball team must have a diameter that is between 2.86 inches and 2.9 inches. which of the following could be the diameter of a baseball used by a professional baseball team?
A. 2 7/8 inches
B. 2 7/9 inches
C.2 8/10 inches
D.2 9/11 inches

Answers

So
Umm in my opinion it’s d
Maybe D I think, because the diameter of the

Which shows 1.69 × 107 in standard notation?

HURRY- ASAP

Answers

Answer:

16900000

Step-by-step explanation:

Answer:

16900000

Step-by-step explanation:

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