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3 years ago

A rectanglular prism is 4 inches long, 6 inches wide, and has a night of 5 inches. What is it’s volume?

Mathematics

1 answer:

navik [9.2K]3 years ago

6 0

Answer: A ; 120in3 sowwy if im wrong

Step-by-step explanation:

Formula= L times W times H

4 times 6 times 5

6 times 5 = 30

30 times 4 = 120

120 is the answer

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Find a ⋅ b. a = 4i - 4j, b = 4i + 5j

svetoff [14.1K]

Answer:

value of a.b = -4

Step-by-step explanation:

We need to find a.b

a= 4i-4j

b = 4i+5j

We know that i.i =1, j.j=1, i.j =0 and j.i=0

a.b = (4i-4j).(4i+5j)

a.b = 4i(4i+5j)-4j(4i+5j)

a.b = 16i.i +20i.j-16j.i-20j.j

a.b = 16(1) +20(0)-16(0)-20(1)

a.b = 16 +0-0-20

a.b = 16-20

a.b =-4

So, value of a.b = -4

7 0

3 years ago

Read 2 more answers

Write an algebraic expression to represent each statement<br> 50 added to half of a number, c

Fittoniya [83]

The expression represented by 50 added to half of a number, c is 50 + c/2

<h3>What are expressions?</h3>

Expressions are mathematical statements that are represented by variables, coefficients and operators

<h3>How to translate the algebraic expression?</h3>

The expression is given as

50 added to half of a number, c

half of a number, c means divide c by 2

So, we have

50 added to half of a number, c => 50 added to c/2

Added to means +

So, we have

50 added to half of a number, c => 50 + c/2

Hence, the expression represented by the statement is 50 + c/2

Read more about expressions at

brainly.com/question/22019327

#SPJ1

7 0

1 year ago

Lionel wants to buy a belt that costs $22. he also wants to buy some shirts that are on sale for $17 each. he has $80. what ineq

horrorfan [7]

22b+17s ≤ 80
Where b is cost of belt,s is cost of shirt .
U can put some values foe b and c their sum always less and maximum would be 80

5 0

3 years ago

Marcos is flying a kite 35 feet above an oak tree. The angle of elevation to the top of the tree is 16 degrees and the angle of

Elza [17]

9514 1404 393

Answer:

195 ft

Step-by-step explanation:

The relationship between the horizontal distance, angle, and vertical height is given by ...

Tan = Opposite/Adjacent

Referring to the attached diagram, we have ...

tan(16°) = BT/MB

tan(25°) = BK/MB

Solving for BT and BK, we can describe their difference as ...

BT = MB·tan(16°)

BK = MB·tan(25°)

BK -BT = 35 = MB(tan(25°) -tan(16°))

Dividing by the coefficient of MB gives ...

MB = 35/(tan(25°) -tan(16°)) = 35/0.179562

MB = 195 . . . feet

Marcos is standing 195 feet from the base of the tree.

3 0

3 years ago

Simplify: 8i^7+6i^5-5i^3-3i^2-7i-9

Dmitry_Shevchenko [17]

<span>Consider the remainder of the division of the power exponent of i by 4.
For a remainder r equal to 0, 1, 2 or 3, we have a power equal to 1, i, -1 or -i respectively, therefore:

</span> $8i^7+6i^5-5i^3-3i^2-7i-9 =$
$8*(-i) + 6*i - 5*(-i) - 3*(-1) - 7i - 9 =$
$- 8i + 6i + 5i + 3 - 7i - 9 =$
$3 - 9 - 8i + 6i + 5i- 7i =$
$=\boxed{- 6 - 4i}$

Answer:
$\boxed{- 6 - 4i}$

<span>

</span>

5 0

3 years ago