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andrezito [222]
3 years ago
9

Which is the best estimate for (2.8 times 10 Superscript 3 Baseline) (4.1 times 10 Superscript 6 Baseline) written in scientific

notation? 7 times 10 Superscript 9 1.2 times 10 Superscript 10 1.5 times 10 Superscript 10 12 times 10 Superscript 18? I NEED IT ASAP!!!
Mathematics
2 answers:
Igoryamba3 years ago
9 0

Answer:

your answers c mate

Step-by-step explanation:

SSSSS [86.1K]3 years ago
6 0

Answer:

B

Step-by-step explanation:

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YOOOO!!! please help me out!!??
Zigmanuir [339]

Answer:

I really hope it will help you....

Step-by-step explanation:

Answer1-we can see that in last two hours the line is downwards so we can easily proof or see that at 11th and 12th are the temperature is lowest.

Answer2-in second one we can see that in hour 1,2,3,4 the temperature has kept on increasing.

Answer 3- between three or four temperature of increasing.

7 0
3 years ago
Pls help me I really don’t get it
aalyn [17]
I think its talking about proportional or non-proportional.. if it is its proportional
8 0
3 years ago
Help please? What's the answer?
Dvinal [7]
Do the equations and keep the (x) unless it is by itself. If it is by itself it equals 1 then you continue with the problems.
5 0
3 years ago
Find the equation for the set of points whose distance from the y-axis equals the distance from the xz-plane.
julia-pushkina [17]

Answer:

$ x_1^2 + z_1^2  = y_1^2$

Step-by-step explanation:

Let   $ p(x_1, y_1, z_1)$  be the point.

Any point on y-axis is (0, y, 0)

So, distance is

= $ \sqrt{x_1^2+0 + z_1^2} $

= $ \sqrt{x_1^2 + z_1^2} $   ......(1)

Now any point on x-z plane is $ ( x_1, 0, z_1 ) $

Distance from p to this point is

= $ \sqrt{0+y_1^2 + 0} $

= $\sqrt{y_1^2}$    .........(2)

Equating (1) and (2), we get

$ \sqrt{x_1^2 + z_1^2}  = \sqrt{y_1^2}$

$ x_1^2 + z_1^2  = y_1^2$

This is the required equation.

8 0
3 years ago
Please Help!!!
Leni [432]
<h2>Answer : (2.67, 3.53)</h2><h2></h2>

Step to step explanation:

Confidence interval for mean, when population standard deviation is unknown:

\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}

, where \overline{x} = sample mean

n= sample size

s= sample standard deviation

t_{\alpha/2} = Critical t-value for n-1 degrees of freedom

We assume the family size is normal distributed.

Given, n= 31 , \overline{x}=3.1, s= 1.42 ,

\alpha=1-0.9=0.10

Critical t value for \alpha/2=0.05 and degree of 30 freedom

t_{\alpha/2} = 1.697  [By t-table]

The required confidence interval:

3.1\pm ( 1.697)\dfrac{1.42}{\sqrt{31}}\\\\=3.1\pm0.4328\\\\=(3.1-0.4328,\ 3.1+0.4328)=(2.6672,\ 3.5328)\approx(2.67,\ 3.53)

Hence,  the 90% confidence interval for the estimate = (2.67, 3.53)

6 0
3 years ago
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