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Scilla [17]
4 years ago
7

Ktoś mi to rozwiarze pls

Mathematics
1 answer:
WARRIOR [948]4 years ago
3 0

a)

2a+(3a-7)=2a+3a-7=5a-7

b)

(2x-3)+x=2x-3+x=3x-3

c)

7-(5x+4)=7-5x-4=3-5x

d)

3x-(y-2x)=3x-y+2x=5x-y

e)

-(3a+6)-4=-3a-6-4=-3a-10

f)

-(x-2y)-3x=-x+2y-3x=2y-4x

g)

(2p-1)+(3+5p)=2p-1+3+5p=7p+2

h)

(4-2x)-(7x-2)=4-2x-7x+2=6-9x

i)

-(2x-1)+(3x+1)=-2x+1+3x+1=x+2

j)

(2m+4n)+(m-0,5n)=2m+4n+m-0,5n=3m+3,5n

k)

(4a-7b)-(2a+3b)=4a-7b-2a-3b=2a-10b

l)

-(2p-r)-(2r-p)=-2p+r-2r+p=-p-r

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Write in y=mx+b form
MA_775_DIABLO [31]

Answer:

y = -2/3x

Step-by-step explanation:

To write in y=mx+b form, you need the y-intercept (b) and the slope (m).

The y-intercept is the point the line crosses the y-axis.  This line crosses the y-axis of (0, 0).  This makes the y-intercept equal to 0.

The slope is the rise of the line over the run of the line.  Pick two points from the line.  It doesn't matter which ones, you will get the right answer regardless.  

I picked (0, 0) and (-3, 2).  Subtract the x-values from each other, and subtract the y-values from each other.

-3 - 0 = -3  (x)

2 - 0 = 2  (y)

Divide the y by the x to find the slope.

2/-3 = -2/3

Plug in the slope and y-intercept into the equation.

y = mx + b

y = -2/3x + 0

y = -2/3x

6 0
3 years ago
For this, find the value of X for this parallelogram!! Thank you :)
True [87]

Answer:

\huge\boxed{\sf x = 12 }

Step-by-step explanation:

Opposite sides and angles of a parallelogram are equal.

So,

3x - 1 = 35

Add 1 to both sides

3x = 35 + 1

3x = 36

Divide 3 to both sides

x = 36 / 3

x = 12

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
7 0
3 years ago
SHOW YOU WORK AND EXPLAIN PLS I WILL MARK YOU BRAINLIEST PLEASE.
KatRina [158]

Answer:

a) 1.8 cm^2

b) 3.6 feet^2

Step-by-step explanation:

Conversion and calculation of areas

The area of a rectangle is A=wh, where w is the width and h is the height. There are 3 feet in one yard

a)

We are told Kalie put 6 stickers, each one of 1/2 centimeters (0.5 cm) wide by 3/5 (0.6 cm) centimeter long. The area of one sticker is

A=(0.5)(0.6)=0.3 cm^2

Assuming there is no overlapping, the 6 stickers have a total area

6*0.3 cm^2=1.8 cm^2

b)

Each of Elana's wrapping papers measures 2/5 yards long and 1/4 yard wide. Converting them to feet we have

long=2/5*3=1.2 feet

wide=1/4*3=0.75 feet

Area of each paper=1.2 feet*0.75 feet=0.9 feet^2

Area of the entire board, assuming no overlapping and no space left uncovered=4*0.9 feet^2

Area of board=3.6 feet^2

7 0
3 years ago
Hey can you please help me posted picture of question
erma4kov [3.2K]
Selecting this function: F(x)= x^4-x^2+3

Graph using these selected points:
Rises to the left and rises to the right
x            y
-1          3
0           3
1           3
2           15
3           75


After assigning values for x and y, plot the graph:
See attached picture for the graph.

We can now conclude that for the given graph, the equation of F(x) is equal to x^4-x^2+3 which is letter D. F(x)= x^4-x^2+3

3 0
4 years ago
3x+7=13 (x=-2;x=2;x=5)
AnnZ [28]
X=2 because 3 times 2 is 6 and then you add 6 and 7 together and get 13.
5 0
3 years ago
Read 2 more answers
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