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Ira Lisetskai [31]
4 years ago
5

Two thirds of my cats plus five

Mathematics
1 answer:
Ad libitum [116K]4 years ago
6 0
2/3+5...add both numbers and this is what you have=17/3

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Rob is saving to buy a new mp3 player. for every $14 he earns babysitting, he saves $7. on saturday, rob earned $42 babysitting.
KengaRu [80]
$42 / $14 = 3  (ratio 3:1)
$7 x 3 = $21
4 0
3 years ago
Determine the projection of u=1.6i+3.3j in the v=-2.1i-0.5j direction
Lina20 [59]

The projection of \vec u onto \vec v is

\mathrm{proj}_{\vec v}(\vec u)=\dfrac{\vec u\cdot\vec v}{\vec v\cdot\vec v}\vec v

We have

\vec u\cdot\vec v=1.6\cdot(-2.1)+3.3\cdot(-0.5)=-5.01

\vec v\cdot\vec v=\|\vec v\|^2=(-2.1)^2+(-0.5)^2=4.66

\implies\mathrm{proj}_{\vec v}(\vec u)=\dfrac{-5.01}{4.66}\vec v\approx2.26\,\vec\imath+0.54\,\vec\jmath

8 0
4 years ago
*NEED HELP ASAP*
GrogVix [38]
X^2 + y^2 - 2x + 7y + 1 = 0


(x^2 - 2x) + (y^2 + 7y) + 1 = 0


(x^2 - 2x + 1) + (y^2 + 7y) + 1 = 0+1


(x^2 - 2x + 1) + (y^2 + 7y + 49/4) + 1 = 0+1+49/4


(x - 1)^2 + (y + 7/2)^2 + 1 = 0+1+49/4


(x - 1)^2 + (y + 7/2)^2 + 1-1 = 0+1+49/4-1


(x - 1)^2 + (y + 7/2)^2 = 49/4


(x - 1)^2 + (y + 7/2)^2 = (7/2)^2


The final answer is choice B
7 0
3 years ago
Read 2 more answers
Solve for x. <br> |2x - 8| &gt; 6 <br> need help please
Contact [7]

Answer:

x>7 or x<1

Step-by-step explanation:

Either 2x-8>6 or 2x-8<-6

Possiblity #1

2x-8>6

Add 8 to both sides

2x>14

Divide both sides by 2

Get x>7

Possibility #2

2-8>-6

Add 8 to both sides

2x<2

Divide both sides by 2

x<1

8 0
3 years ago
Area of a triangle when b = 6 m and h=7 m
Alchen [17]

Answer

42

Step-by-step explanation:

The area of a triangle is "triangle = BxH" Which in your case is 6x7

3 0
3 years ago
Read 2 more answers
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