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natima [27]
2 years ago
13

I don't understand this at alllll :(

Mathematics
2 answers:
ella [17]2 years ago
6 0

Answer:

300

Step-by-step explanation:

volume of rectangle formula:

HEIGHT*WIDTH*LENGHT*

12*10(1/2)*20(1/4= 300

Dafna11 [192]2 years ago
3 0

Answer:

2551.5in³

Step-by-step explanation:

<em><u>this</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>easy</u></em><em><u> </u></em><em><u>if</u></em><em><u> </u></em><em><u>you</u></em><em><u> </u></em><em><u>kn</u></em><em><u>ow</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>formula</u></em><em><u>.</u></em>

<em><u>volu</u></em><em><u>me</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>l</u></em><em><u>*</u></em><em><u>w</u></em><em><u>*</u></em><em><u>h</u></em>

<em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>2</u></em><em><u>0</u></em><em><u>.</u></em><em><u>2</u></em><em><u>5</u></em><em><u>*</u></em><em><u>1</u></em><em><u>0</u></em><em><u>.</u></em><em><u>5</u></em><em><u>*</u></em><em><u>1</u></em><em><u>2</u></em><em><u>=</u></em><em><u> </u></em><em><u>2</u></em><em><u>5</u></em><em><u>5</u></em><em><u>1</u></em><em><u>.</u></em><em><u>5</u></em><em><u>i</u></em><em><u>n</u></em><em><u>³</u></em>

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For each of the following, use logic laws to decide whether the statement is a tautology contradiction, or neither. a (a) (A B)
spayn [35]

Answer:

The statement (A\rightarrow \lnot B)\land (B\rightarrow A) is a contingency.

The statement (P\rightarrow \lnot P)\land P is a contradiction.

Step-by-step explanation:

A tautology is a proposition that is always true.

A contradiction is a proposition that is always false.

A contingency is a proposition that is neither a tautology nor a contradiction.

a) To classify the statement (A\rightarrow \lnot B)\land (B\rightarrow A), you need to use the logic laws as follows:

(A\rightarrow \lnot B)\land (B\rightarrow A) \equiv

\equiv (\lnot A \lor\lnot B)\land(\lnot B \lor A) by the logical equivalence involving conditional statement.

\equiv (\lnot B\lor \lnot A )\land(\lnot B \lor A) by the Commutative law.

\equiv \lnot B \lor (\lnot A \land A) by Distributive law.

\equiv \lnot B \lor (A \land \lnot A) by the Commutative law.

\equiv \lnot B \lor F by the Negation law.

Therefore the statement (A\rightarrow \lnot B)\land (B\rightarrow A) is a contingency.

b) To classify the statement (P\rightarrow \lnot P)\land P, you need to use the logic laws as follows:

(P\rightarrow \lnot P)\land P \equiv

\equiv (\lnot P \lor \lnot P)\land P by the logical equivalence involving conditional statement.

\equiv P \land (\lnot P \lor \lnot P) by the Commutative law.

\equiv (P \land \lnot P) \lor (P \land \lnot P) by Distributive law.

\equiv F \lor F \equiv F by the Negation law.

Therefore the statement (P\rightarrow \lnot P)\land P is a contradiction.

8 0
3 years ago
Write a equation in slope intersect form for points (0,8) and (9,5)
lyudmila [28]

y = mx+b

(5-8)/(9-0) = -1/3 which is m

solve point slope to find slope intercept by using one of the points (0,8)

y-y1=m(x-x1)

y-8 = -1/3(x-0)

y-8 = -1/3x

Answer: y = -1/3x + 8

3 0
3 years ago
Graph a line parallel to y-2x+1 and has a y-intercept of (0,5))
Debora [2.8K]

your answer is x = 6

desmos

7 0
3 years ago
3/10 divided by -1/3
Snezhnost [94]

Answer:

-9/10

Step-by-step explanation:

  1. Find the LCM of 10 and 3: 30
  2. Alter the numerators to fit the denominators: 3 × 3 = 9, -1 × 10 = -10
  3. Re-write the fractions: 9/30 ÷ -10/30
  4. 9/30 ÷ -10/30 = 9/30 × -30/10
  5. 9/30 × -30/10 = -270/300
  6. -\frac{270}{300} = -\frac{9}{10}  

I hope this helps!

8 0
3 years ago
Please i need help asap
murzikaleks [220]

Answer:

WHEN YOU

Step-by-step explanation:

WHEN YOU MULTIPLY 1X1 YOU GET ONE

8 0
3 years ago
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