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3 years ago

Number 4. Isosceles triangle ABC has vertices at A(0,0), B(8,0), and C(x,12)

Mathematics

1 answer:

Galina-37 [17]3 years ago

3 0

The awnser to the question is a

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Walks for 17.5 meters at a speed of 7 meters per minute. For how many minutes does it walk?

Alekssandra [29.7K]

Speed = distance / time

7 = 17.5 / t
t = 17.5 / 7
= 2.5 minutes

5 0

3 years ago

The temperature in frostburg is -7.This is 18 less than the temperature in coldspot.Find the temperature of coldspot

Drupady [299]

If the temperature in frostburg is 18 less than the temperature in coldspot, then the following equation compares the two temperatures:

$f = c-18$

where $f,c$ are the temperatures in frostburg and coldspot. Since we're given $f$ , we can solve for $c$ :

$-7 = c-18 \iff c = -7+18 = 11$

6 0

3 years ago

What is the equation of the line that passes through the point (-3. 4) and has a<br> slope of 1/3?

Katarina [22]

Y= mx+c
So m= the gradient (slope)
And c=the y intercept (x,y= -3,4)
So it should be
Y=1/3x+4

4 0

2 years ago

Let Y be a random variable with a density function given by

Neporo4naja [7]

From the given density function we find the distribution function,

$F_Y(y)=P(Y\le y)=\displaystyle\int_{-\infty}^y f_Y(t)\,\mathrm dt=\begin{cases}0&\text{for }y$

(a)

$F_{U_1}(u_1)=P(U_1\le u_1)=P(3Y\le u_1)=P\left(Y\le\dfrac{u_1}3\right)=F_Y\left(\dfrac{u_1}3\right)$

$\implies F_{U_1}(u_1)=\begin{cases}0&\text{for }u_1$

$\implies f_{U_1}(u_1)=\begin{cases}\frac{{u_1}^2}{18}&\text{for }-3\le u_1\le3\\0&\text{otherwise}\end{cases}$

(b)

$F_{U_2}(u_2)=P(3-Y\le u_2)=P(Y\ge3-u_2)=1-P(Y$

$\implies F_{U_2}(u_2)=\begin{cases}0&\text{for }u_2$

$\implies f_{U_2}(u_2)=\begin{cases}\frac32(u_2-3)^2&\text{for }2\le u_2\le4\\0&\text{otherwise}\end{cases}$

(c)

$F_{U_3}(u_3)=P(Y^2\le u_3)=P(-\sqrt{u_3}\le Y\le\sqrt{u_3})=F_Y(\sqrt{u_3})-F_y(\sqrt{u_3})$

$\implies F_{U_3}(u_3)=\begin{cases}0&\text{for }u_3$

$\implies f_{U_3}(u_3}=\begin{cases}\frac32\sqrt u&\text{for }0\le u\le1\\0&\text{otherwise}\end{cases}$

5 0

3 years ago

Have 15 minutes please help!!

Marina86 [1]

Anything which have their degree as 0 is always equal to 1
=> 5^0=1
Option 3 is the answer..!!
Hope this helps you!!

Good Luck!

3 0

3 years ago