3 years ago

D={xl x is a whole number}. E= {xl x is a perfect square <100}. E {xl x is an even number between 10 and 20}

Mathematics

1 answer:

AnnyKZ [126]3 years ago

5 0

D={xl x is a whole number}. E= {xl x is a perfect square <100}. E {xl x is an even number between 10 and 20}

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Lisa collected leaves from different trees for a science project. Every day for a week (7 days), she collected 7 leaves. How man

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Answer:

49 leaves

Step-by-step explanation:

7 days x 7 leaves per day = 49 leaves in total

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1 year ago

Anybody know the answer

Karolina [17]

Answer:

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Step-by-step explanation:

Product of 5

5 * ()

difference of 9

5 * (-9)

and a number

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Read 2 more answers

Three angles of a quadrilateral are 75,120, 90,then the fourth angle..

Roman55 [17]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Geometry

Sum of Angles in a Quadrilateral: 360

Step-by-step explanation:

Step 1: Set up

75 + 120 + 90 + ∠4 = 360

Step 2: Solve

Add: 285 + ∠4 = 360
[Subtraction Property of Equality] Subtract 285 on both sides: ∠4 = 75

5 0

2 years ago

Tesfa is x years old. his father is 4 times as old as Tesfa. Her mother is 7 years younger than his father. If their three ages

4vir4ik [10]

tesfa = x

dad = 4x

mom= 4x-1

x+4x+4x-1=101

9x+1=101

9x=100

100/9= 11.1

6 0

3 years ago

four spheres of radius 6cm fit into a cylinder with a height of 12cm. calculate the volume inside the cylinder that is empty. le

butalik [34]

Answer:

V = 432pi cm^3

Step-by-step explanation:

Pi x r^2 x h

Pi x 6^2 x 12 cm = 432 pi cm^3

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3 years ago