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zhuklara [117]
2 years ago
7

PLEASE HELP QUICK!! I NEED IT ASAP 3.

Mathematics
2 answers:
wariber [46]2 years ago
3 0
C ! It’s the quadratic formula hope this helps
mariarad [96]2 years ago
3 0
C I hope it helps yeah c should be righty
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What is the product of 45 x 104 = ________?
DedPeter [7]

Answer:

45 x104 = 4680

Step-by-step explanation:

5 0
2 years ago
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On day two of a study on body temperatures, 106 temperatures were taken. Suppose that we only have the first 10 temperatures to
NemiM [27]

Answer:

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.2622

The margin of error is:

M = T*s = 2.2622*0.3 = 0.68

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 98.44 - 0.68 = 97.76 ºF

The upper end of the interval is the sample mean added to M. So it is 98.44 + 0.68 = 99.12 ºF

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

4 0
3 years ago
HELLPPPPPPPPPPP PLEASE
KiRa [710]
Alright, so we plug (-2) in for x. (-2)^2 =4, and we can plug that in as 4(4)+(-2)+5. Next, 4*4=16, so we get 15+(-2)+5. After that, we get 15-2+5=18
3 0
3 years ago
Find the inverse, g−1(x), of the following function: g(x) = 4x - 11
Sphinxa [80]

Answer:

g^{-1} (x) = \frac{x+11}{4}

Step-by-step explanation:

let y = g(x) and rearrange making x the subject, that is

y = 4x - 11 ( add 11 to both sides )

y + 11 = 4x ( divide both sides by 4 )

\frac{y+11}{4} = x

Change y back into terms of x , with x = g^{-1} (x) , thus

g^{-1}(x) = \frac{x+11}{4}

7 0
3 years ago
Please help!! The slope of the line passing through the points (-3, 4) and (4, -1) is ___.
oksano4ka [1.4K]
I hope this helps you


slope=m


(-3,4) x'=-3 y'=4

(4,-1) x"=4 y"=-1


slope formula :


m. (x'-x")=y'-y"


m. (-3-4)=4-(-1)


m.-7=4+1


m=-5/7
4 0
2 years ago
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