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Tasya [4]
3 years ago
7

How do you solve this equation: 18k - 4k = -10 -4k

Mathematics
2 answers:
hammer [34]3 years ago
5 0
18k - 4k = -10 - 4k
18k - 4k + 4k = -10
18k = -10
k= (18/10) = (9/5) = 1.8
sdas [7]3 years ago
3 0
18K-4k= -10-4K
18k-4k +4k =-10
18k18=-10/18
k=-.555556
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A rectangular flower garden has area 32 square feet. if the width of the garden is 4 feet less than the length, what is the peri
KengaRu [80]
To determine the perimeter of the rectangular flower garden, we need to know the measurement of the sides of the rectangle so we have to know the length and the width. The given measurements are the area, and the relation of the width and the length. From these, we generate equations to calculate the width and the length. We do as follows:

Area = Length x Width

where length = x ft
           width = x - 4 ft
           area = 32 ft^2

32 = x (x -4)
32 = x^2 - 4x

Solving for the positive value of x, 

x = 8 ft = length
width = x -4 = 8 - 4 = 4 ft

Perimeter = 2(length) + 2(width) = 2(8) + 2(4) = 24 ft
4 0
3 years ago
Divide.<br><br> −558÷5<br><br><br> ​​ −118<br><br> ​​ −58<br><br> 58<br><br> ​​ 118
lana66690 [7]

a negative divided by a negative is a positive

558/5 = 111 3/5

So either the problem is wrong or the choices are wrong

4 0
4 years ago
Algebraic expression and identity 1)simplify the following (3a+b)3 +(3a-b)3
mylen [45]

Answer:

(3a+b)^3+(3a-b)^3=54a^3+18ab^2

Step-by-step explanation:

Given: (3a+b)^3+(3a-b)^3

Formula: x^3+y^3=(x+y)(x^2-xy+y^2)

(x+y)^2=x^2+2xy+y^2

(x-y)^2=x^2-2xy+y^2

x\rightarrow 3a+b

y\rightarrow 3a-b

\Rightarrow (3a+b+3a-b)((3a+b)^2-(3a+b)(3a-b)+(3a-b)^2)

\Rightarrow (6a)(9a^2+b^2+6ab-9a^2+b^2+9a^2+b^2-6ab)

\Rightarrow (6a)(9a^2+3b^2)

\Rightarrow 54a^3+18ab^2

5 0
3 years ago
Which of the following sets of data would you likely represent with a square matrix?
n200080 [17]

Answer:

B) A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.

Step-by-step explanation:

A square matrix is where the number of rows is equal to the number of columns like order 2x2, 3x3, 4x4, 5x5 etc.

Given options are:-

A) A shoe salesperson wants to use an augmented matrix to represent the quantity of children’s shoes and adult shoes sold at his store for two days.

It is 2x2 times 2x1 = 2x1 matrix.

B) A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.

It is 6x1 times 1x6 = 6x6 matrix.

C) A student wants to write a coefficient matrix representing a linear system with two equations and three unknowns.

It is 2x3 times 3x1 = 2x1 matrix

D) A teacher wants to write an augmented matrix representing a linear system with four equations and four unknowns.

It is 4x4 times 4x1 = 4x1 matrix.

Hence option B is correct.

7 0
3 years ago
Read 2 more answers
Center : (0,0) radius=11
Klio2033 [76]

Answer:

is there a image if so put it there so i can answer

Step-by-step explanation:


7 0
3 years ago
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