Mathematics High School

como simplifica essa expressão: x+6y-7z+2-8x-12y-10z-20:​

Answers

Answer 1

Answer:

-17 z - 6 y - 7 x + -18

Step-by-step explanation:

Simplify the following:

x + 6 y - 7 z + 2 - 8 x - 12 y - 10 z - 20

Hint: | Group like terms in x + 6 y - 7 z + 2 - 8 x - 12 y - 10 z - 20.

Grouping like terms, x + 6 y - 7 z + 2 - 8 x - 12 y - 10 z - 20 = (-7 z - 10 z) + (6 y - 12 y) + (x - 8 x) + (2 - 20):

(-7 z - 10 z) + (6 y - 12 y) + (x - 8 x) + (2 - 20)

Hint: | Combine like terms in -7 z - 10 z.

-7 z - 10 z = -17 z:

-17 z + (6 y - 12 y) + (x - 8 x) + (2 - 20)

Hint: | Combine like terms in 6 y - 12 y.

6 y - 12 y = -6 y:

-17 z + -6 y + (x - 8 x) + (2 - 20)

Hint: | Combine like terms in x - 8 x.

x - 8 x = -7 x:

-17 z - 6 y + -7 x + (2 - 20)

Hint: | Evaluate 2 - 20.

2 - 20 = -18:

Answer: -17 z - 6 y - 7 x + -18

Related Questions

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer: B

Explanation:
We can substitute burgers for m and drinks for p, since all burgers are the same price and drinks are the same price, substitute the 3 burgers and 2 drinks into
3m+2p
The only right answer for this equation is $13.50, substitute the 5m+4p=$23.50 and your only right answer is B

Based on the graph shown, which features are correctly stated?
A)
Vertex: (1,-4)
B
Axis of symmetry: -4
09
y-intercept:(-3,0)
D)
x-intercepts: (-1,0) and (3, 0)
E)
Function: f(x) = x2 - 2x - 3

Answers

Answer:

D

Step-by-step explanation:

Answer: A

              D

              E

Step-by-step explanation:just got it right

Point c’(-4,-3) is the same image of C(-2,-3) under a translation
Need translation and if it goes up down left or right

Answers

Answer:

the translation is to the left 2 times

Step-by-step explanation:

-2-2=-4

there is no changes to the y value

Help pls! (4c+4)(2c-3)

Answers

Answer:

8c2 - 4c - 12

Step-by-step explanation:

Answer:

8c^2-4c-12

Step-by-step explanation

So you have to multiply 4c into 2c and -3 first and then 4 into 2c and -3.

(4c+4)(2c-3)

4c X 2c is 8c^2

(4c+4)(2c-3)

4c X -3 is -12c

So for the 4c multiplying in you would get 8c^2 and -12c, but we still have to multiply in the 4

4 X 2c is 8c

(4c+4)(2c-3)

4 X -3 is -12

So then we would get 8c^2-12c+8c-12, however we can still combine the -12c and the 8c.  Combining those would get -4c.  So the final answer is 8c^2-4c-12

Please help I’ll name brainliest

Answers

Answer:

mark R as a 6

Step-by-step explanation:

Tyler asks for a fish tank for his birthday. The tank he wants is a rectangular prism 20.25 inches long, 10.5 inches wide, and 12.5 inches tall. How much water will the fish tank hold? Show how you found your answer.

Answers

Answer: 20.25*10.5*12.5 = the answer

Step-by-step explanation: Hope this help :D

x/235 = 60/100 SHOW ALL WORK FOR WHAT DOES X equals THIS IS DUE IN 3mins WILL GIVE BRAINLY

Answers

Answer:

x = 141

Step-by-step explanation:

x/235 = 60/100

100x = (235)(60)

100x = 14,100

divide both sides of the equation by 100:

x = 141

Answer:

141

Step-by-step explanation:

reduce the fraction 60/100 which will turn into x/235=3/5, simplify and it will go to 5x=705, divide both sides and it will equal 141

someone please help.

Madison's bicycle wheel has 28 spokes. The diameter of the wheel is 24 inches. What is the approximate arc length between each pair of spokes? Use 3.14 for π, and round to the nearest tenth

1.2 in.
1.4 in.
2.7 in.
5.6 in.

Answers

Answer: the answer is C: 2.7in.

Step-by-step explanation:

Answer:

2.7

Step-by-step explanation:

hii! hopefully you can answer this :)

Answers

Answer:

1.C

2.A

Step-by-step explanation:

Answer:

1.C

2.A

Step-by-step explanation:

WILL GIVE BRAINLIEST!!! PLS HELP!!!

Answers

Answer:

sorry guys real sorry i dont know it zoom it more

Step-by-step explanation:

Work out the area of a circle with radius 7.5 cm.
Take it to be 3.142 and give your answer to 2 decimal places.​

Answers

Answer:

Stuck in same question Jinx

Step-by-step explanation:

Plzzz help!! Solve for the value of x.

1/2x = 21

Answers

Answer:

x=42

Step-by-step explanation:

2*(

1

2

x)=(2)*(21)

What is the length of the hypotenuse of the triangle below?

Answers

Answer:

Step-by-step explanation:

h = (9√2)(√2) = 18 units

Geometry boy yo please help

Answers

Answer:

x=12

Step-by-step explanation:

ab=dc so 15=x+3 you subtract 3 from both sides... x=12

evaluate the expression: 3^3 + 3(4 + 1/3)

Answers

Your answer: 3^3 + 3(4 + 1/3) = 40

Answer: 130

Step-by-step explanation: I first did 4+1/3 which is 4 1/3 and then I did 3^3 which is 27 then I added 3 to 27 and I multiplied 27 and 4 1/3 and got 130.

Suzy makes 20 dollars an hour at her job. Bill only makes 10 dollars an hour but he has a starting bonus of 20. When will Suzy and Bill make the same amount of money for the same number of hours worked? How much will they both earn at the same time?

Answers

Answer:

2 hours

Suzy would earn $40

Bill will earn $40

they will both earn $80

Step-by-step explanation:

The total amount suzy earns is a function of the total hours worked. Let t represent time

total income of suzy = $20t eqn 1

Bill's income = starting bonus + variable pay

= $20 + $10t

We are looking for when they would earn the same amount :

20t = $20 + $10t  eqn 2

collect like terms and solve for t

10t = $20

t = 2 hours

Substitute for t in either eqn 1 or 2

20(2) = $40

Suzy would earn $40

Bill will earn $40

they will both earn $80

calcule o valor x na equação do 1° grau: 2x-42=64​

Answers

Answer:

2x-42=64

Step-by-step explanation:

When Tyson opens and lays a cereal box out flat, he sees that the top and bottom of the box each measure 3 inches by 9 inches, the sides of the box each measure 3 inches by 13 inches, and the front and back of the box each measure 9 inches by 13 inches.

Please Answer with the work please.

Answers

Answer:

i

Step-by-step explanation:

2. Sara started out with $50 in her piggy bank. Every week she deposited the same amount of
money in the bank. After 7 weeks she had $67.50. Find the average rate of change or slope
in dollars per week. (This is a unit rate.)
3. At 4 a.m. the temperature was 38 degrees F. By 11 a.m. the temperature had risen to 60
degrees F. Find the average rate of change or slope in degrees per hour.

Answers

2. 50-67.50 =17.5
17.5/ 7 =2.5
3. 38-60 =22
4am to 11am is seven hours
22/7 =3

8= -9 + u

solve for u

Answers

Answer:

The answer is 17

Step-by-step explanation:

First, add 9 to 8

17 = u

Answer:

u=17

Step-by-step explanation:

8=-9+u

-u=-9-8

-u=-17

u=-17

Consider the equation 5 + x = n
What must be true about any value of x is the n is a negative number?
Explain your answer.
Provide an example that would satisfy this condition.
Explain how you know your equation is correct.
(Can someone plz help)!!!

Answers

All of the answers will be less than five. for example if x=-3 n=2 which is less than 5

What is the supplement to: 101 degrees?

Answers

Answer:

79 degrees

Step-by-step explanation:

180 - 101 = 79

A large square is divided into 4 smaller squares; then small left square is
divided into 4 smaller squares as well. What fraction of the large square is
shaded?

OPTIONS

4 over 5
3 over 8
4 over 9
1 over 3
1 over 2​

Answers

Answer:

The total fraction shaded is 1/2

Step-by-step explanation:

Here, we want to know the fraction shaded

As we can see, the box is originally divided into 4

So each of the 4 parts are 1/4

for the first part, we have 4 divisions;

This means each of the divisions with respect to the whole fraction will be 1/4/4 = 1/16

Now, two of these are shaded, making 1/16 and 1/16

Secondly, we have half of the 1/4 : So with respect to the whole, we have 1/4/2 = 1/8

for the third part, the whole 1/4 is shaded

and lastly, we have an unshaded 1/4

so, the total fraction shaded will be ;

1/16 + 1/16 + 1/4 + 1/8

= (1 + 1 + 4 + 2)/16 = 8/16 = 1/2

Plz, Help me with this question!

Plz, Help me with this question!

Answers

Answer:

Ben franklin

Step-by-step explanation:

Answer:

Ben Franklin

Step-by-step explanation:

21x+9 =
Help please

Answers

Answer:

3

Step-by-step explanation:

cross multiply

I need help plz !!!!!

Answers

Answer:

7 gallons

Step-by-step explanation:

brainliest plz if someone else answers

85+125 = 210 (total amount of miles)

unit rate is 30 mi/gal

210 / 30 = 7

7 gallons

what is the common difference 5,3,1,-1​

Answers

Answer:

t2-t1= 3-5 = -2

answer= -2

A pack of gum is in the shape of a rectangular prism with a length of 5 centimeters and width of 2 centimeters. The volume of the gum is 60 cubic centimeters. What is the height of the pack of gum? The height of the pack of gum is cm.​

Answers

The height is 6cm
Volume= length x width x height
60=5x2xH
60/(5x2)=H
6=H

179+892
Estimate

Round each number to the nearest hundred

Answers

Answer:

1100

Step-by-step explanation:

179+892 is 1071. However we will round up since 1071 is closer to 1100 compared to 1000. Hope this helps!

What is the area of the figure? A kite with height shown as the sum of eighteen and ten and the length of the base as the sum of twelve and twelve

Answers

Answer:

336

Step-by-step explanation:

12+12=24 the base

18+10=28 the height

1/2 * 28 * 24 =336

Answer:

Area is 336.

Step-by-step explanation:

A=1/2bh

A=1/2 * 12+12 * 10+18

A=1/2 *672

A=336

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