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lys-0071 [83]
3 years ago
15

Help!!! Which ones do I circle?​

Mathematics
1 answer:
KiRa [710]3 years ago
3 0
Pay attention next time
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Which of the following multiplication expressions have a product equal to 2/3? Mark all that apply.
enot [183]

Answer:

2/3 x 5/5 and 4/4 x 2/3

Step-by-step explanation:

I used my calculator so I really can't explain it to you but those are the answers for sure. Good Luck!!! :) :)

3 0
3 years ago
If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3
Cerrena [4.2K]

Answer:

v = 23

Step-by-step explanation:

Formatting the question gives;

a = mg - kv² / m

Make v subject of the formula as follows;

(i) Multiply both sides by m

ma = m²g - kv²

(ii) Collect like terms

kv² = m²g - ma

(iii) Divide through by k

v² = (m²g - ma) / k

(iv) Take the square root of both sides

v = √ [(m²g - ma) / k]            --------------(ii)

From the question:

a = 2.8

m = 12

g = 9.8

k = 8/3

Substitute these values into equation (i) as follows;

v = √ [(12²(9.8) - 12(2.8)) / (8/3)]

v = √ [(1411.2 - 33.6) / (8/3)]

v = √ [1377.6 / (8/3)]

v = √ [1377.6 x (3/8)]

v = √ [1377.6 x 3 / 8)]

v = √ [516.6]

v = 22.73

v = 23 [to the nearest whole number]

Therefore v = 23 to the nearest whole number    

3 0
4 years ago
URGENT. Geometric Probability.
hichkok12 [17]

Answer:

Hello,

Step-by-step explanation:

heigth of the equilateral triangle:

h=3*\dfrac{\sqrt{3}}{2}

Area of the triangle:

A=\dfrac{6*3\sqrt{3} }{2*2} =\dfrac{9\sqrt{3} }{2} \\\\

Area of the disk:

S=\pi*4^2=16\pi\\\\

Probability:

p=\dfrac{9\sqrt{3} }{2*16*\pi}=0.15506125....\approx{15.5\%}

4 0
3 years ago
Read 2 more answers
What does how many mean in math?
Komok [63]
The question is asking to states the definition of the term "how many" in math, base on the question and in my further research, the term is use as a count in every variables and situations. I hope you re satisfied with my answer and feel free to ask for more 
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3 years ago
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X<br> B.<br> A<br> с<br> D<br> which points are coplanar and noncollinear ?
PolarNik [594]

Answer:

step by step

Step-by-step explanation:

I dont understand ?? try to re write it

8 0
3 years ago
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