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KIM [24]
3 years ago
12

Select all that apply.

Mathematics
2 answers:
dybincka [34]3 years ago
8 0
A parallelogram ig.
Stells [14]3 years ago
3 0
I think it is number 1
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An arc length 3 feet is cut off by a central angle of pi/4 radians, find the area of the sector formed
harkovskaia [24]
Sector area= 0.5 r^2 * theta (in radians)

arc length = r*theta
3=r*(0.7854)
r=3.82

sector area= 0.5 * (3.82)^2 * 0.7854 = 5.73 sq ft

7 0
3 years ago
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Work out 5^-2 x cube root of 8<br><br> Answer in decimal form please.
Ira Lisetskai [31]

Answer:

0.08

Step-by-step explanation:

{5}^{ - 2}  \times  \sqrt[3]{8}  \\  \\  =  {5}^{ - 2}  \times  \sqrt[3]{ {2}^{3} }  \\  \\  =  \frac{1}{ {5}^{2} }  \times 2 \\  \\   = \frac{1}{25}  \times 2 \\  \\  =  \frac{2}{25} \\ \\ =0.08

5 0
3 years ago
If y varies directly as x, and y = 10 when x = 9, find y when x = 1/9
Vinvika [58]

Answer:

10/81

Step-by-step explanation:

let,

y=kx

y=10 when x=9

so,

10=k×9

or, k=10/9

when x=1/9

y=kx

or, y=(10/9)×(1/9)

or, y=10/81

5 0
3 years ago
Evaluate the expression.<br> 5P4
Oksanka [162]

Answer:

5p4 = 120

Step-by-step explanation:

nPr

Where n=5 and r =4

(5!) ÷ (5-4)!= (5*4*3*2*1)÷(1)=120

4 0
3 years ago
I need help quick plz 30 points
Reptile [31]

Answer:

2nd one

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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