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Lubov Fominskaja [6]
3 years ago
11

Express the inequality using interval notation 3

Mathematics
1 answer:
professor190 [17]3 years ago
5 0

Answer:

sometimes

Step-by-step explanation:

you just gotta be big brain

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Solve ax-b/d=c, for x
Kitty [74]

Answer:

x = cd + b / a

Step-by-step explanation:

ax - b / d = c

ax - b = cd

ax = cd + b

x = cd + b / a

5 0
3 years ago
Find the missing sides, and give the simplified form of the square root
Brilliant_brown [7]

Answer:

in the pics

Step-by-step explanation:

In case you are wondering, I used the pythagorean theorem. If you want to learn how to use it I suggest you google it, there are plenty of sites that explain how to use it.

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

7 0
3 years ago
The length of a rectangle is 2 units more than the width. The area of the rectangle is 63 units. What is the length, in units, o
Keith_Richards [23]

Answer:

Length = 9units

Width = 7units

Step-by-step explanation:

It is said that the length is 2units more than the width

Assume that the width is x, then the length will be 2 + x

ie

Width = x

Length = 2 + x

Area of the rectangle = 63units

Area of rectangle = l * b

l - length of the rectangle

b - width of the rectangle

A = l * b

63 = (2 + x) * x

63 = ( 2 + x) x

63 = 2x + x^2

Let's rearrange it

x^2 + 2x - 63 = 0

Let's find the factor of 63

A factor that can be multiplied to give -63 and that can be added to give +2

Let's use -7 and +9

x^2 - 7x + 9x - 63 = 0

Separate with brackets

( x^2 - 7x) + ( 9x - 63) = 0

x( x - 7) + 9(x - 7) = 0

( x + 9)(x - 7) = 0

( x + 9) = 0

( x - 7) = 0

x + 9 = 0

x = -9

x - 7 = 0

x = 7

Note: the length of a rectangle can not be negative

So therefore,

x = 7

Length = 2 + x

= 2 + 7

= 9units

Width = x

= 7units

7 0
3 years ago
Help I need it asap
enyata [817]

Answer:

for no 7 its none for 8 its st

Step-by-step explanation:

I hope this helps

8 0
3 years ago
Explain the process in detail on how to solve the following question for
OleMash [197]
Sks skewhwjebslsgeowbz
3 0
3 years ago
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