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3 years ago

Right triangle abc and pqr are shown below what angle is congruent to angle a and b what is the area in squares of triangle pr4

Mathematics

1 answer:

Effectus [21]3 years ago

4 0

6x3=18-3=15 Hope it helps

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3. Emilio is going to run 6 miles a day for 8 days. How many miles will he have completed

Nastasia [14]

Answer:

Step-by-step explanation:

6(miles per day) * 8(days) = 48

7 0

2 years ago

A line with slope -2 and y-intercept 4 <br>enter the equation of the line in slope intercept form.

Hitman42 [59]

-2x + 4 = y because the slope intercept form is mx+b=y

4 0

3 years ago

Help please I don’t get itttttttt I’ll mark brainlist if I can pleaseee

Marizza181 [45]

Answer:

Step-by-step explanation:

Multiply 2.75 by $0.76 to get $2.09

Multiply 2.75 by $1.40 to get $3.85

Add $3.85 and $2.09 to get $5.94

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2 years ago

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago

Write the equation of the line that has a slope of -4 and goes through (3,-3)

Sindrei [870]

The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9

3 0

3 years ago