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3 years ago

How to know what to do next in a geometry two column proof?

1 answer:

4 0

To do a two-column proof, you must know the definitions of the terms that are being used. Also, you must know the postulates and theorems you have learned so far. You look at the given information, and using the definitions, postulates, and theorems, you reason in your mind how to go from the given to the conclusion, step by step. You write each step and the accompanying reason that allows you to conclude each step.

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How can you tell when to use a discrete graph as opposed to using a continuous graph? Give an example of each.

sesenic [268]

Answer:

Continuous graphs have all real numbers

Discrete graphs have whole numbers

Step-by-step explanation:

7 0

4 years ago

a parking meter contains $8.25 in dimes and quarters. after emptying the meter, the worker counts 51 coins. how many quarters an

Marianna [84]

<h3>30 dimes and 21 quarters are present</h3>

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

1 dime = $ 0.10

1 quarter = $ 0.25

The worker counts 51 coins

Therefore,

d + q = 51

d = 51 - q ---------- eqn 1

<em><u>A parking meter contains $8.25 in dimes and quarters</u></em>

Therefore,

0.10d + 0.25q = 8.25 -------- eqn 2

<em><u>Substitute eqn 1 in eqn 2</u></em>

0.10(51 - q) + 0.25q = 8.25

5.1 - 0.10q + 0.25q = 8.25

0.15q = 3.15

Divide both sides by 0.15

Substitute q = 21 in eqn 1

d = 51 - 21

Thus 30 dimes and 21 quarters are present

8 0

3 years ago

(-4/5)(3/5)(-6/7)(5/6)=

Vera_Pavlovna [14]

Answer:

(-4/5)(3/5)(-6/7)(5/6)

= (-4/5)(3)(-1/7)

= 12/35

Hope this helps!

4 0

4 years ago

Guys what is the answer 3/8+4/5

Dominik [7]

Answer:

the answer would be 47/40

3 0

4 years ago

Read 2 more answers

The probability that a battery will last 10 hr or more is 0.9, and the probability that it will last 15 hr or more is 0.13. give

galben [10]

P(B|A) = P(B)/P(A) = 0.11/0.7 = =.157

3 0

4 years ago