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Gennadij [26K]
2 years ago
7

Can someone answer this question and show work. Please I only have this period to do it. It ends at 8:40 please someone do it

Mathematics
1 answer:
Alla [95]2 years ago
5 0

Answer:

4((sqrt5)-2)

Step-by-step explanation:

Factor 2 Sqrt(5)+4 = 8/(2(sqrt5+4))

divide then you get 5/((sqrt5)+1)

4((sqrt5)-2)

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What is the value of the expression 4.8x 10^9 / 1.6x 10^3
SVEN [57.7K]

Answer:

3*10^3

Step-by-step explanation:

4.8(10^9)/1.6(10^3)

we can split this equation into

4.8/1.6 * 10^9/10^3

= 3*10^3

8 0
3 years ago
The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C at the freezing
PSYCHO15rus [73]

Answer:

-1.53 , 1.53

Step-by-step explanation:

It is basically asking you to find the percentiles. so for the bottom 6.3% you would type into your calculator 2nd, VARS, invNorm, area: .063, mean: 0, and Standard Deviation: 1 which gives you -1.53.

for the upper 6.3% you have to take 1-.063=.937 to get the upper percentile. now type into your calculator 2nd, VARS, invNorm, area: .937, mean: 0, and Standard Deviation: 1 which gives you 1.53.


I hope I helped :D

6 0
1 year ago
Which element of a text best helps the reader determine the central idea?
Sveta_85 [38]

Answer:

key details, because it tells you more about the story

8 0
2 years ago
Help me pls my mom is yelling at me to do this and i have no idea how to do it.
Kamila [148]

Answer:

10x+y

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Multiply r^2+7r+10/3 by 3r-30/r^2-5r-50
olga_2 [115]
<span>(r^2+7r+10/3) * (3r-30/r^2-5r-50)
1/3(3r^2+21r+10) x 3(r-10)/(r^2-5r-50)
(3r^2+21r+10)x(r-10)/(r^2-10r+5r-50)
(3r^2+21r+10)x(r-10)/(r-10)(r+5)
3r^2+21r+10/(r+5)



</span>
5 0
3 years ago
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