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spin [16.1K]
3 years ago
10

Mr. Hall needs lights installed in his house and is trying to decide between two electric companies.

Mathematics
2 answers:
Mumz [18]3 years ago
8 0

Answer:

this question isn’t clear nd i can’t see the picture

Step-by-step explanation:

Murrr4er [49]3 years ago
3 0

It wouldnt let me type it so the screenshot has the answer.

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Suppose a laboratory has a 31 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of
AysviL [449]
A=P(1/2)^(t/h)
P=initial amount
t=time
h=half life
A=final amount
so

A=0.242188 grams
6 0
2 years ago
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Two cones are similar. The volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³. The height of the sm
aev [14]
ANSWER

The height of the larger cone is 3cm

EXPLANATION

Since the two cones are similar we can use the scale factor to determine the height of the larger cone.

It was given that, the volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³.


The scale factor for the volume is


{k}^{3}  =  \frac{27}{8}


The scale factor for the length is

k =  \sqrt[3]{ \frac{27}{8} }


k = \frac{3}{2}


To find the height of the larger cone, we multiply by

h = \frac{3}{2}  \times 2 = 3
7 0
3 years ago
Read 2 more answers
3(x-12)=15 what number is x fist to answer gets brainlest
Bingel [31]

Answer:

x = 17

Step-by-step explanation:

3(x-12)=15

->

x-12+12=5+12

7 0
2 years ago
Calculate 40^13 (mod85)
777dan777 [17]
I pretty sure the answer is 134217728000000000000/17
4 0
3 years ago
25y + 150x = 250<br><br> find the Variables
fomenos

Answer: Step-by-step explanation:

25y + 150x = 250 (÷25)

y+6x=10

y=10-6x

example x=1 y=4

8 0
2 years ago
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