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4 years ago

When to use brackets and parentheses polynomial inequalities?

1 answer:

6 0

Given your answer is say x<3, "x is less than 3", that means that 3 is not included in your solution set. The interval (-∞, 3); note the use of parenthesis. If the interval is [-3,6), this means that in your solution 3 is included but not 6. That is to say, 3≤x<6. [3,6]; both are included. (3,6) none is included.

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Write a Polynomial with the given zeros: -2, 7

Alex787 [66]

Answer:

Step-by-step explanation:

f(x)=(x+2)(x-7)=x²-5x-14

7 0

3 years ago

Mickey used these calculations to find how much he would spend on 7 cartons of eggs, if 12 cartons of eggs cost $22.20. Describe

timofeeve [1]

Mickey incorrectly calculated the unit price:
$\frac{12}{22.20} = 0.54$

The correct operation is:
$\frac{22.20}{12} = 1.85$

Each carton costs 1.85, so 7 cartons cost
$1.85 \times 7 = 12.95$

8 0

3 years ago

Read 2 more answers

A rectangular prism has a length of 734 inches, a width of 312 inches, and a height of 6 inches. Mario has a storage container f

fredd [130]

Answer: $27.6\ in.^3$

Step-by-step explanation:

Given

Length of Prism is $l= 7.34\ in.$

The width of Prism is $w=3.12\ in.$

The height of Prism is $h=6\ in.$

The volume of a The height rectangular prism is given as

$V=l\times w\times h$

Substituting values we get

$\Rightarrow V=7.34\times 3.12\times 6=137.404\ in.^3$

Volume of storage $V_s=165\ in.^3$

The difference in volume is

$\Rightarrow 165-137.404=27.59\approx 27.6\ in.^3$

8 0

3 years ago

Solve 3.8 = p/3 - 7.2

ziro4ka [17]

19/5=p/3-36/5

Convert the decimals into fractions

15 x 19/5=(p/3-36/5) x 15

Multiply both sides by 15

57=5x-108

5x-108+108=57+108

Add 108 to both sides

5x=165

X=33

Answer

Hope this helps

7 0

3 years ago

The length of a rectangle is 6 cm and its area is (6x+18) Square centimeters what is an expression for the width

Ludmilka [50]

Answer:

x+3

Step-by-step explanation:

(6x+18)/6

Simplify

x+3

7 0

3 years ago