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frez [133]
2 years ago
6

Which of the following are in scientific notation?

Mathematics
2 answers:
horsena [70]2 years ago
8 0
Hi and it’s the 3rd one
ella [17]2 years ago
6 0

Answer:

5.23x10^-2, 8.7x10^-2

Step-by-step explanation:

Scientific notation is basically any number(eg121) thats divided by the lowest power of 10 before it turns into 0.something(in this case, 1.21), times the power of 10 u need to dived, in this case 10^2.

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x^2+2x+8=0\\
x^2+2x+1+7=0\\
(x+1)^2=-7\\
x+1=-\sqrt{-7} \vee x+1=\sqrt{-7}\\
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8 0
3 years ago
23. A grid shows the positions of a subway stop and your house. The subway stop is located at (-5, 2) and your house is located
Sindrei [870]
(-5, 2)(-9,9)
D = √( (x2 - x1)^2 + (y2 - y1)^2 )
D = √( (-9+5)^2 + (9 - 2)^2 )
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7 0
3 years ago
Can someone answer B please???
lbvjy [14]
A)

150 were surveyed, possible outcomes, and 132 said they prefer dogs, favorable outcomes,   132/150 or 22/25 or 0.88, now 0.88 * 100 is just 88, namely 88% is the probability.

b)

since we know is 88%, what is 88% of 100?  (88/100) * 100, 0.88 * 100, or just 88 students.

c)

18/150 or 3/25 or 0.12 namely 12%,

what's 12% of 300?  (12/100) * 300, or 0.12 * 300, so just 36 students.
8 0
3 years ago
A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
CaHeK987 [17]
Area of the Base = 6 * side^2 / 4 * tan (180/6)
Area of the Base = 6 * 16 / 4 * 0.57735
Area of the Base = 96 / <span> <span> <span> 2.3094 </span> </span> </span>
Area of the Base = <span> <span> <span> 41.5692387633 </span> </span> </span>

Area of 1 Face = 2 * 6 = 12
Area of 6 Faces = 72

<span> <span> Total Area = 41.5692387633 </span> + 72</span>
Total Area = 113<span>.5692387633</span>


6 0
3 years ago
Read 2 more answers
GUYS HELP I GOT TOO MUCH TO DO CAN YOU DO ME A SOLID
MrRissso [65]

Answer:

2 radical 13

Step-by-step explanation:

3 0
2 years ago
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