2 years ago

Simplify 2x + 2y - x + 4 - 1 + 3x + 2y + 7

Mathematics

2 answers:

xxTIMURxx [149]2 years ago

8 0

4x + 4y + 10..........

Degger [83]2 years ago

4 0

Add all the like terms together
4x+4y+10

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the figure is made up of a semicircle and a triangle. Find the area of the figure. Use pi equals 3.14

valentinak56 [21]

Answer:

The area of the figure is 63.25 square feet

Step-by-step explanation:

we know that

The area of the figure is equal to the area of semicircle plus the area of triangle

step 1

Find the area of semicircle

The area of semicircle is

$A_1=\frac{1}{2}\pi r^{2}$

we have

$r=10/2=5\ ft$ ----> the radius is half the diameter

$\pi =3.14$

substitute

$A_1=\frac{1}{2}(3.14)5^{2}$

$A_1=39.25\ ft^2$

step 2

Find the area of the triangle

The area of triangle is equal to

$A_2=\frac{1}{2}bh$

we have

$b=8\ ft\\h=6\ ft$

substitute

$A_2=\frac{1}{2}(8)(6)$

$A_2=24\ ft^2$

step 3

The area of the figure is equal to

$A=A_1+A_2$

substitute

$A=39.25+24=63.25\ ft^2$

5 0

3 years ago

If x-y=√3, x²-y²=√5 & a²-a√3+1=0, then find out the value of x+y

Lemur [1.5K]

Answer:

√15/3

Step-by-step explanation:

x² - y² =√5

(x +y)*(x -y) = √5

(x +y) * √3 = √5

x+y = √5 / √3

x +y = √5*√3 / √3*√3

x +y = √15/3

4 0

2 years ago

which undefined geometric term can be described as a one dimensional set of point that has no beginning or end?

user100 [1]

A line-----------------

3 0

3 years ago

Read 2 more answers

Can someone plz help me ASAP thxs

allsm [11]

Answer:

352

Step-by-step explanation:

8 x 6 x 8 = 384

384- (4 x 1 x 8)

384-32=352

6 0

2 years ago

What is the exact distance from (−4, −2) to (4, 6)?

Gekata [30.6K]

The distance between any two points is:

d^2=(x2-x1)^2+(y2-y1)^2

d^2=(6--2)^2+(4--4)^2

d^2=8^2+8^2

d^2=64+64

d^2=128

d=√128 units

6 0

3 years ago