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BigorU [14]
3 years ago
10

15 POINTS can someone please help me with this?

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0
X=55 Explanation: the square is a right angle symbol and that means the angle is 90 degrees so just subtract 35 from the 90 to get x
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d)An insurance company will only sell its Select policy to people for whom the probability of a stroke in the next 10 years is l
NARA [144]

Answer:

Check the explanation

Step-by-step explanation:

The First action is to enter the data in Excel and then save it as a csv file. Then call the data set in R using your saved path,  I have made use of my computer path here in my code. please change it for yours.

Here is the code That you need to use for finding the multiple limear regression model and summary of it.

code:

data=read. csv("C:\\Users\\HP\\Desktop\\chegg. csv")

data

attach(data)

model=lm(Risk~Age+Blood.Pressure+Smoker)

summary(model)

And Here is the output:

Call:

lm(formula = Risk ~ Age + Blood.Pressure + Smoker)

Residuals:

Min 1Q Median 3Q Max

-13.1064 -1.5715 0.4225 3.4855 8.5561

Coefficients:

Estimate Std. Error t value Pr(>|t|)    

(Intercept) -91.75950 15.22276 -6.028 1.76e-05 ***

Age 1.07674 0.16596 6.488 7.49e-06 ***

Blood.Pressure 0.25181 0.04523 5.568 4.24e-05 ***

Smoker 8.73987 3.00082 2.912 0.0102 *  

---

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 5.757 on 16 degrees of freedom

Multiple R-squared: 0.8735, Adjusted R-squared: 0.8498

F-statistic: 36.82 on 3 and 16 DF, p-value: 2.064e-07

The answer is now written in the notebook which i am uploading..

6 0
2 years ago
F(x) = 4x² – 17x+3
Svet_ta [14]

Answer:

discriminant: 241

2 real roots

Step-by-step explanation:

The discriminant is the part of the quadratic equation that is under the sqare root

x=(-b±√(b²-4ac))/2a

discriminant: b²-4ac

We also know that a quadratic equation is in the form ax²+bx+c = 0, so we can plug in the values we know from our equation to find the discriminant.

a=4

b=-17

c=3

(-17)^2-4(4)(3)

We also know that if the discriminant

is positive we have 2 real roots

is 0 we have 1 real root aka a repeated real solution

is negative we have no real roots

8 0
3 years ago
HELP ME AS SOON AS POSSIBLE PLEASE HELP MEE
SSSSS [86.1K]

Answer:

x=48

Step-by-step explanation:

Oops I forgot some degree symbols and forgot to take off some but the calculations are correct.

7 0
3 years ago
3x + 2<5 ? Show work please
Ganezh [65]

Answer:

x < 1

Step-by-step explanation:

3x + 2<5  (subtract 2 on each side)

3x< 3 (Divide 3 on both sides)

x < 1

7 0
2 years ago
Instructions: Find the following information using the given image.
igor_vitrenko [27]

Answer:

Segment 1: 16

Segment 2: 9

x=12

Step-by-step explanation:

25=16+ segment 2

Subtract 25-16 and you get 9 and that is your Segment 2

Now, cross multiply

\frac{9}{x} * \frac{x}{16}

9*16=144

Now simplify it.

144/12

And there is your x=12

I can confirm this is right because I just turned it in and it came out correct.

8 0
3 years ago
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