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2 years ago

Brainliest if correct

Mathematics

2 answers:

Komok [63]2 years ago

5 0

Answer:

u = -2

Step-by-step explanation:

Rearrange terms

-10 = -4 + 3u

-10 = 3u-4

Add 4 to both sides of the equation

-10 = 3u - 4

-10 +4 = 3u-4 +4

Simplify

-6 = 3u

Divide both sides of the equation by the same term

-6/3 = 3u/3

Simpilfy

u = -2

[RevyBreeze]

dybincka [34]2 years ago

4 0

Answer:

-2

Step-by-step explanation:

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What 2 numbers add to 17 and multiply to -168?

nekit [7.7K]

A) x + y = 17
B) x * y = -168

y = -168/x then inputting this into A)

x + -168/x = 17
x^2 -168 -17x = 0

x = 24 and x = -7

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3 years ago

F(x)=-3x-2 find f(3)

TiliK225 [7]

Answer:

f(3) = -11

Step-by-step explanation:

f(x) = -3x-2

let x=3 and replace it in the above equation

f(3) = -3(3) -2

f(3) = -9 -2

f(3) = -11

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4 years ago

Kerry invited 23 friends to his pool party. They played a game where everyone had to separate into groups. Each group had the sa

Alex17521 [72]

Answer:

A, C, and E are the answers

Step-by-step explanation:

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2 years ago

A square notepad has sides that are 10 centimeters long. What is the notepad's area?

blsea [12.9K]

Answer:

100cm²

Step-by-step explanation:

The notepad is square.

The area of a square = length X width.

All the sides of a square are the same length.

Therefore, the area of the notepad = 10 X 10 which equals 100.

Don't forget the units!

The units for area is cm².

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8 0

2 years ago

22. Find the perimeter and area.

zmey [24]

Answer:

Part 22) The area is $A=15a^3b^6\ units^2($ and the perimeter is $P=10a^2b^4+6ab^2\ unit$

Part 24) The area is $A=16m^3n\ units^2$ and the perimeter is $P=24mn\ units$

Part 26) The area is equal to $A=9\pi x^6y^{2}\ units^2$

Step-by-step explanation:

Part 22) Find the perimeter and area

step 1

The area of a rectangle is equal to

$A=LW$

we have

$L=5(a^2)(b^4)\ units$

$W=3(a)(b^2)\ units$

Remember that

When multiply exponents with the same base, adds the exponents and maintain the base

substitute in the formula

$A=(5(a^2)(b^4))(3(a)(b^2))$

$A=15a^3b^6\ units^2$

step 2

The perimeter of a rectangle is equal to

$P=2(L+W)$

we have

$L=5(a^2)(b^4)\ units$

$W=3(a)(b^2)\ units$

substitute in the formula

$P=2(5(a^2)(b^4)+3(a)(b^2))$

$P=10a^2b^4+6ab^2\ unit$

Part 24) Find the perimeter and area

step 1

The area of triangle is equal to

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

where

$b=8mn\ units$

$h=4m^2\ units$

Remember that

When multiply exponents with the same base, adds the exponents and maintain the base

substitute the given values

$A=\frac{1}{2}(8mn)(4m^2)$

$A=16m^3n\ units^2$

step 2

Find the perimeter

I will assume that is an equilateral triangle (has three equal length sides)

The perimeter of an equilateral triangle is

$P=3b$

where

$b=8mn\ units$

substitute

$P=3(8mn)$

$P=24mn\ units$

Part 26) Find the area

The area of a circle is equal to

$A=\pi r^{2}$

where

$r=3x^3y\ units$

Remember the property

$(a^{m})^{n}=a^{m*n}$

substitute in the formula the given value

$A=\pi (3x^3y)^{2}$

$A=9\pi x^6y^{2}\ units^2$

6 0

3 years ago