Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(-4.2w-7x-5.4)

Answers

Answer 1

Answer: 4.2*w + 7*x + 5.4

Step-by-step explanation:

Here we need to remember how the product of different signs works, here is the rule:

(+)*(+) = (+)

(+)*(-) = (-)

(-)*(+) = (-)

(-)*(-) = (+)

Now we want to distribute the negative sign in the equation:

"-(-4.2w-7x-5.4)"

We can write this as:

-(-4.2w-7x-5.4) = (-1)*(-4.2w-7x-5.4)

Now we can distribute the "-1"

Then we get:

(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4)

We have 3 cases where we need to use the "(-)*(-) = (+)" rule, then we get:

(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4) = 4.2*w + 7*x + 5.4


Related Questions

How many solutions does this system have?
3
y = x-5
-3x+4y=-20

Answers

Answer:

x=0 and y=-5

Step-by-step explanation:

hope this helps!

High-definition televisions have an aspect ratio of 16: 9. The following answer choices are television screen sizes rounded to the nearest inch. Which could be a High-definition television?

Answers

Answer:

18.5 in approx

Step-by-step explanation:

Given data

aspect ratio of 16: 9

L= 16in

W= 9 in

We want to find the diagonal of the TV

applying Pythagoras theorem

d^2= l^2+w^2

d^2= 16^2+ 9^2

d^2=256+81

d^2= 337

d= √337

d= 18.35 in

Hence the tv is 18.5 in approx

Can you divide any number by zero?

Answers

Answer:

well basically no so i say no

Step-by-step explanation:

you can but you wouldn't get a answer because you would only get the same answer so..

Answer:

When we try to divide by zero, things stop making sense

Step-by-step explanation:

You rent an apartment that costs $800 per month during the first year, but the rent is set to go up $170 per year. What would be the monthly rent during the 8th year of living in the apartment?

Answers

The monthly rent during the 8th year of living in the apartment will be $2160.

What is the linear system?

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

You rent an apartment that costs $800 per month during the first year, but the rent is set to go up by $170 per year.

Then the monthly rent during the 8th year of living in the apartment will be

Let y be the monthly rent and x be the number of years.

Then we have

y = 170x + 800

The rent after 8 years, then the rent will be

y = 170 × 8 + 800

y = 1360 + 800

y = $ 2160

Thus. the monthly rent during the 8th year of living in the apartment will be $ 2160.

More about the linear system link is given below.

https://brainly.com/question/20379472

#SPJ1

question. 2. 8 is what percent of 5?​

Answers

Answer:

56

Step-by-step explanation:

Solution for 2.8 is what percent of 5:

2.8:5*100 =

(2.8*100):5 =

280:5 = 56

Answer: 160%

Step-by-step explanation:

The recipe uses 1/2 cup of sugar for 1 cup of flour...how much flour should there be if there is 2 cups of sugar? *

Answers

Answer:

4 cups

Step-by-step explanation:

2 divided by 1/2 is 4 so there are 4 half cups of sugar.

Since the sugar is multiplied by 4 you have to multiply the flour by 4.

1*4=4

Help please? :) I need some help !!!!!!!!!

Answers

Answer:

i gotchu step sis u need help with them laundry's

Step-by-step explanation:

Answer:

Answer:

answer is 8

Step-by-step explanation:

put the equations equal to each other

then simplify

it is bcz of a angle type of parallel lines

corresponding angle

Step-by-step explanation:

The equation d = 3t represents the relationship between the distance in inches that a snail is from a certain rock and the time in minutes

Answers

Answer:

so would it be 3x 3 times pepepeppopo checkk

Help me plzzzz I’m literally failing

Answers

Answer:

10.5.....................

Answer:

6

Step-by-step explanation:

trapezoid HJGF is 2.5 times more that trapizoid CBAD, so divide the 15 by 2.5 and get 6.

Help plz I will give brainliest that’s what they say right

Answers

Answer: A

Step-by-step explanation:

(f+g)x

4x - 9 +  12x +7

4x +12x - 9 +7

16x  - 2

answer - (f+g)x = 16x -2

I need help asap!!! Please explain and I will give brainliest!!

Answers

Answer:

DF ≅ AC

Step-by-step explanation:

To prove that the triangles are congruent by AAS, we need a side from each triangle to be congruent to the other, correspondingly. So, if AC ≅ DF, we could prove the triangle's congruency by AAS. In the answer choices, the only answer that works is DF ≅ AC.

20 divided by c write an algebraic expression for the word expression ​

Answers

Step-by-step explanation:

The algebraic expression is

20

----

c

or

20/c

A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomial.

Answers

Answer:

[tex]A=(x^2+16+8x)\ \text{inches}^2[/tex]

Step-by-step explanation:

Given that,

The side length of a square, l = (x+4) inches

We need to find an expression to represent the area of the square.

The area of a square is given by :

[tex]A=\text{side}^2[/tex]

So,

[tex]A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2[/tex]

So, the area of the square is [tex](x^2+16+8x)\ \text{inches}^2[/tex].

8.
Look at this figure.
It has one triangle and one rectangle. True or false?
True
False
Checkin
skip

Answers

Answer:

true

Step-by-step explanation:

the triangle is on top of the rectangle

Answer:

ture because it has one of each

Step-by-step explanation:

so like that

Mary has 20 biscuits in a tin there are 11 plain biscuits 7chocolate biscuits 2 currant biscuits sue takes at random 2 biscuits from the tin work out the probability that the 2 biscuits were not the same type?

Answers

I’m gonna save my life for my Christmas card I have a gift for my birthday present for my Christmas present pots for my Christmas bell I bought it and it’s a little gem for Christmas I bought a Christmas bell I have bought the Christmas for the solarizion and king kitty kitty cat kitty hello hello I have to get it to me when you DUA can you get me some pictures please I love it

I need help pls step by step i will really appreciate pls also l will mark you the brainly if you did !

Answers

Answer:

1. 2

2.3[tex]\sqrt{5}[/tex]

3.8[tex]\sqrt{6}[/tex]

4.2.5[tex]\sqrt{10}[/tex]

Step-by-step explanation:

Remember that [tex]\frac{\sqrt{a}}{\sqrt{b}}[/tex]=[tex]\sqrt{\frac{a}{b} }[/tex], and [tex]\frac{a}{\sqrt{b}}[/tex]=[tex]\frac{a}{\sqrt{b}}[/tex]*[tex]\frac{\sqrt{b}}{\sqrt{b}}[/tex]=[tex]\frac{a\sqrt{b}}{b}[/tex]

1. [tex]\frac{\sqrt{48}}{\sqrt{12} }[/tex]= [tex]\sqrt{\frac{48}{12} }[/tex]=[tex]\sqrt{4}[/tex]=2

2. [tex]\frac{15}{\sqrt{5} }[/tex]=[tex]\frac{15}{\sqrt{5} }[/tex]*[tex]\frac{\sqrt{5}}{\sqrt{5} }[/tex]=[tex]\frac{15\sqrt{5} }{5}}[/tex]=3[tex]\sqrt{5}[/tex]

3. [tex]\frac{48}{\sqrt{6}}[/tex]= [tex]\frac{48}{\sqrt{6}}[/tex]* [tex]\frac{\sqrt{6}}{\sqrt{6}}[/tex]= [tex]\frac{48\sqrt{6}}{6}[/tex]=8[tex]\sqrt{6}[/tex]

4. [tex]\frac{25}{\sqrt{10}}[/tex]=[tex]\frac{25}{\sqrt{10}}[/tex]*[tex]\frac{\sqrt{10}}{\sqrt{10}}[/tex]=[tex]\frac{25\sqrt{10}}{10}[/tex]=2.5[tex]\sqrt{10}[/tex]

please help me
!!!!!!!!!!!!!

Answers

Answer:

Hey y = 16

sorry can't find x and z

please I am struggling really bad help me

Answers

A I’m pretty sure that’s the answer

HELP!PLS ANSWER THIS BY TODAY AND TMR
Write a story to represent 15 divided by 19 solve the equation in a complete story
Next when your done what multiplication equation shows that your division is correct
Pls answer this I will give a brainly to the best!

Answers

It equals 0.7894737 that’s the answer

what is the answer to this question​

Answers

Answer:

it would be c. 5 1/4

Step-by-step explanation:

The correct answer would be C

help please i need the answer asap

Answers

Answer:

Option 2

Step-by-step explanation:

Answer:

Graph 2

Step-by-step explanation:

exponential growth means that the line is increasing

Arrange the values in order from least to greatest.
34%
.23
18/25

Answers

Answer:

.23, 34%, 18/25

Step-by-step explanation:

34% = 0.34 (2)

.23 = 0.23 (1)

18/25 = 0.72 (3)

Can someone help me with this please
I’ll mark as brainliest

Answers

The answer is C......

PLEASE HELP U GUYS THIS IS CONFUSINGGG

Answers

the domain is 8 and 9 and the range is -3,-4,-6,-9 it is not a function

Work out m and c for the line:
y = 2x

Answers

M is equal to 2
C = 0

for the parallelogram find the value of x,y,and z

Answers

Answer:

X = 119, Y = 61, Z = 119

Step-by-step explanation:

These are supplementary angles and equal 180.

180 - 61 = 119

Opposite angles are congruent

5 is not more than x​

Answers

Answer:

well we don't don't know...because x is unknown

Answer:

There no problem but 5<=x in equation form

Step-by-step explanation:

That way because x can either be five or higher

Determine the average rate of change from x = 0 to x = 4

Answers

Answer:

I'm super bad at math sowy!!!

Step-by-step explanation:

\(T T)/

1.Find Each of the following angle measures. Round your answer to the nearest degree. Show your work in the space below
Please help meeeeee

Answers

Answer:

a. m<DAB = 36°

b. m<B = 54°

c. m<C = 74°

Step-by-step explanation:

a. m<DAB = m<CAB + m<CAD

m<DAB = 20° + 16° (substitution)

m<DAB = 36°

b. m<B = 180° - (90° + m<DAB)

m<B = 180° - (90° + 36°) (substitution)

m<B = 54°

c. m<C = 180° - (90° + m<CAD)

m<C = 180° - (90° + 16°) (substitution)

m<C = 74°

An item has an original price of $45, it is discounted 25%. What is the new price?

Answers

25% off $45 is $33.75

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