The tens digit is 9 more than the ones digit my number is?

The coordinates of the vertices of □PQR are (-2,5), Q(-1,), and R(7,3). Determine whether □ PQR is a right triangle. Show Your W

alexdok [17]

Answer:

Slope of PQ

m

r

=

y

Q

−

y

P

x

Q

−

x

P

=

1

−

5

−

1

−

(

−

2

)

=

−

4

Slope of QR

m

p

=

y

R

−

y

Q

x

R

−

x

Q

=

3

−

1

7

−

(

−

1

)

=

1

4

Slope of RP

m

q

=

y

R

−

y

P

x

R

−

x

P

=

3

−

5

7

−

5

=

−

1

Since slopes PQ & PR,

m

r

=

−

1

m

p

, it's a right triangle

4 0

3 years ago

What is the value of -3/4^-4

VLD [36.1K]

Answer:

-786

Explanation:

Move 4^-4 to the numerator using the negative exponent rule 1/x^-n = x^n

-(3×^4)

Raise 4 to the power of 4.

-(3×256)

Multiply 3 by 256.

-1×768

Multiply -1 by 768.

-768

3 0

3 years ago

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 peopl

laiz [17]

Answer: The waiting time will be 32 minutes when 240 people in line.

Step-by-step explanation:

Let us assume that the waiting time is directly proportional to the number of people in the queue.

Equation of direct proportion between variables x and y : $\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}$

Put $x_1=20,\ y_1=150,\ y_2=150$ to find $x_2$ .

$\dfrac{20}{150}=\dfrac{x_2}{240}\\\\\Rightarrow\ x_2=\dfrac{20}{150}\times240\\\\\Rightarrow\ x_2=32$

Hence, the waiting time will be 32 minutes when 240 people in line.

3 0

2 years ago

Read 2 more answers

What is the vertex of the graph of f(x) = |x + 3| + 7? (3, 7) (7, 3) (–3, 7) (7, –3)

ArbitrLikvidat [17]

Answer:

(-3,7)

Step-by-step explanation:

7 0

3 years ago

Anyone know whats 9 + 10 ??

Zarrin [17]

Answer: 21

Step-by-step explanation:

ahaha but for real it is 19

6 0

3 years ago