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3 years ago

Please someone help i dont know this :(

Mathematics

2 answers:

zhuklara [117]3 years ago

7 0

Answer:

none of the above

Step-by-step explanation:

Vertical angles are opposite angles made by intersecting lines

a and b are not vertical angles no

Complementary angles - two angles that add to 90 degrees

b is 90 degrees by itself no

Supplementary angles - two angles that add to 180 ( would make a straight line)

a and b do not form a straight line they are not vertical angles - no

Nezavi [6.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

Complementary angles add up to 90 and Supplementary angles add up to 180

90 < a + b < 180

So, neither complementary nor Supplementary

Clearly they aren't vertical angles either

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Suki is making lemonade to bring to the beach. She has two containers. One holſis one gallon and the other

ra1l [238]

Answer:

40 cups of lemonade

Step-by-step explanation:

you turn the 1 gallon in to quarts(qt) which would give you 4qt and you add that to the 6qt to get 10qt of lemonade then you turn that in to cups to get 40 cups

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3 years ago

Can someone help me figure this out ?

belka [17]

Answer:

-3x > -30

Step-by-step explanation:

The graph can be described simply as ...

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If we multiply the equation by -3, we have to reverse the inequality symbol. Then we get ...

-3x > -30

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4 years ago

7. What is the cardinality of each of the following sets?

zysi [14]

Answer:

The cardinality of set (a) is 0,

the cardinality of set (b) is 1

and

the cardinality of set (c) is 3.

Step-by-step explanation: We are given to find the cardinality of each of the following sets :

(a) { }.

(b) { { } }.

We know that

CARDINALITY of a set is the number of elements present in the set.

(a) The given set is A = { }.

The set A is an empty set, so it does not contain any element. Hence, the cardinality of the set A is 0.

(b) The given set is B = { { } }.

The set is B is singleton set, contains only one element (that is empty set). So, the cardinality of the set B is 1.

(c) The given set is C = {a, {a}, {a, {a}} }.

The set C has three elements, a, the set {a} and the set {a, {a}}. So, the the cardinality of set C is 3.

Thus,

the cardinality of set (a) is 0,

the cardinality of set (b) is 1

and

the cardinality of set (c) is 3.

8 0

3 years ago

Students are asked to memorize a list of 100 words. The students are given periodic quizzes to see how many words they have memo

nadezda [96]

Answer:

C. dL/dt = k(100 - L)

Step-by-step explanation:

We have a list containing 100 words.

L = number of words memorized at time t.

At any time t, the number of words left to be memorized is 100-L.

Therefore:

$\frac{dL}{dt}\propto 100-L\\ $Introducing k, a constant of proportion$\\\frac{dL}{dt}= k(100-L)$

<u>The correct option is C.</u>

6 0

3 years ago

Write the equation in standard form. y=4/7x+3

sdas [7]

Answer:

4x-7y = -21

Step-by-step explanation:

1. Move 4/7x to the other side

-4/7x+y=-3

2. Multiply both sides by -7

4x-7y=-21

3 0

3 years ago

Read 2 more answers