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REY [17]
3 years ago
15

How do you work this out

lt="12a + 8b - 9c" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
IRINA_888 [86]3 years ago
5 0
It is already simplified? no more possible steps can be done
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As you go deeper underground the earth's temperature increases. In some places, it may increase by 25 degrees per kilometer. Wha
Alla [95]

Answer:

The rate of degrees per meter increased would be 25,000°

4 0
3 years ago
Twice a number increased by 5 is less then -9
polet [3.4K]

Answer:

2x+5<-9

Step-by-step explanation:

multiply the number by 2 and add 5

5 0
3 years ago
Find an equation for the line that passes through the points (-2,-6) and (6,-4)
JulsSmile [24]
Slope of line
m= (y2-y1)/(x2-x1)
=(-4--6)/(6--2)
=2/8
=1/4

Line in two point form
(y-y1)=m(x-x1)
y--2=(1/4)(x-6)
y+2=(1/4)(x-6)
simplify
4(y+2)=x-6 =>
x-4y-14=0
Alternatively, use the slope intercept form:
y--2=(1/4)(x-6) =>
y=(1/4)x - 3/2-2 =>
y=(1/4)x -7/2

6 0
3 years ago
A data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66
blondinia [14]

Answer:

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

<u>Step-by-step explanation:</u>

Given data a data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66degreesF

sample size n = 106

Mean of the population   ' μ' = 98.7degreesF

standard deviation of population 'σ' = 0.66degreesF

Mean of the sample x⁻ = 98.6degreesF

Level of significance ∝ = 0.99 0r 0.01

<u>Confidence limits :-</u>

The values (x^{-} - 2.58\frac{S.D}{\sqrt{n} } ,x^{-} +2.58\frac{S.D}{\sqrt{n} } ) are called 99% of confidence limits

For the mean of the Population corresponding to the given sample.

(98.6 - 2.58\frac{0.66}{\sqrt{106} } ,98.6 +2.58\frac{0.66}{\sqrt{106} } )

on calculation, we get

(98.6 - 0.1654,98.6 + 0.1654)

The 99% confidence intervals are

(98.4346 , 98.7654)

C)<u> This suggests that the mean body temperature could very possibly be 98.6degrees°F</u>.

3 0
3 years ago
what is the equation of the line that is parallel to the line y - 2x - 1 and passes through the point (2,7)?
zvonat [6]

Answer:

y= 2x +3

Step-by-step explanation:

5 0
3 years ago
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