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3 years ago

22lb=________oz 22lb is how many oz

Mathematics

2 answers:

zheka24 [161]3 years ago

7 0

Answer:

352 oz

Step-by-step explanation:

16 oz in a pound

16x22 = 352

katen-ka-za [31]3 years ago

4 0

Answer:

352.

Step-by-step explanation:

One lb is 16 oz. 22x16 is 352

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Find the measure of the angle between the vectors 〈6, –3, 1〉 and 〈8, 9, –11〉

Pepsi [2]

Answer:

Option C.

Step-by-step explanation:

We know that for two vectors:

A = 〈a₁, a₂, a₃ 〉and B =〈b₁, b₂, b₃〉.

The dot product between A and B is:

A.B = IAI*IBI*cos(θ)

Where θ is the angle between the vectors.

And the dot product can be also written as:

A.B = a₁*b₁ + a₂*b₂ + a₃*b₃

With that, we can find the angle between our vectors.

In this case, the vectors are:

A = 〈6, –3, 1〉 and B = 〈8, 9, –11〉

The modules are:

IAI = √( 6^2 + (-3)^2 + 1^2) = 6.78

IBI = √( 8^2 + 9^2 + (-11)^2) = 16.31

And the dot product between A and B is:

A.B = 6*8 + (-3)*9 + 1*(-11) = 10

Then we have that:

10 = IAI*IBI*cos(θ) = ( 6.78)*(16.31)*cos(θ)

10/(6.78*16.31) = cos(θ)

Now remember the inverse cosine function, Acos(x), this function has the property:

Acos(cos(x)) = x

If we apply this to both sides, we get:

Acos(10/(6.78*16.31)) = Acos(cos(θ)) = θ = 84.8°

The correct option is C.

7 0

3 years ago

Question 4.

Ludmilka [50]

Answer:

9.80 m

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationship between sides of a right triangle and its angles.

<h3>setup</h3>

The geometry of this problem can be modeled by a right triangle, so these relations apply. We are given an angle and adjacent side, and asked for the opposite side, so the relation of interest is ...

Tan = Opposite/Adjacent

Using the given values, we have ...

tan(24°) = AC/AB = (tree height)/(distance from tree)

tan(24°) = AC/(22 m)

<h3>solution</h3>

Multiplying by 22 m gives ...

tree height = AC = (22 m)·tan(24°) ≈ 9.79503 m

The height of the tree is about 9.80 meters.

5 0

2 years ago

Is (-1,3) a solution to the system: y=4x+1 Y=x - 2

yulyashka [42]

Answer: no the solution is (-1,-3)

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Sara had 324 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost? What is the equatio

sammy [17]

Answer:

Each book costed $34.

Step-by-step explanation:

Let the cost of a book be x.

$324-9x=18$

Add 9x to both sides:

$324=18+9x$

Subtract 18 from both sides:

$306=9x$

$9x=306$

Divide both sides by 9:

$x=34$

Each book costed $34.

5 0

3 years ago

Read 2 more answers

one pound of swordfish costs as much as 1.5 pounds of salmon. Mrs. O pays $39 for 2 pounds of salmon and 3 pounds of swordfish.

Alex73 [517]

Answer:

Not sure which ratio you need, but 6/9 = 2/3

Step-by-step explanation:

1.5xsalmon=swordfish

$39 = 2lb salmon and 3lb swordfish

1lb salmon=$6 6+6 = 12

1lb swordfish=$9 9+9+9 = 27

12+27 = 39

6 0

3 years ago