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lukranit [14]
3 years ago
13

What is the slope of (-1,1) and (4,-1)

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Answer:

-0.4

Step-by-step explanation:

Point A

(

x

A

,

y

A

)

= (-1, 1)

Point B

(

x

B

,

y

B

)

= (4, -1)

Objective :

Find the slope of a line that passes through points A and B.

Formula :

Slope

m

=

y

B

−

y

A

x

B

−

x

A

Solution:

Slope

m

=

−

1

−

1

4

−

−

1

=

−

2

5

m = -0.4

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A customer goes to a bank and gets change for a $100 bill. The change is to be in $1, $5, and $10 bills. There were four times a
alexira [117]

Answer:

12

Step-by-step explanation:

x = number of $1 bills

y = number of $5 bills

z = number of $10 bills

We know that:

x + y + z = 25 (total amount of bills)

x + 5y + 10z = 100 (total amount of money)

y = 4z (Given)

Substitute the third equation into the first one.

x + 4z + z = 25

x = 25 - 5z

Put this into the second equation.

(25 - 5z) + 5 (4z) + 10z = 100

Simplify and solve.

25 - 5z + 20z + 10z = 100

25z + 25 = 100

25z = 75

z = 3

Substitute this into y = 4z

y = 4 * 3

y = 12

So, there are 12 $5 bills.

5 0
2 years ago
Read 2 more answers
URGENT! Please help me with this question!!!!!
Artist 52 [7]

Answer:

\boxed{GJ = 76 \ degrees}

Step-by-step explanation:

According to Angles of intersecting chords theorem:

∠GAJ = \frac{1}{2} (BD+GJ)

Where ∠GAJ = 50 , BD = 24 and GJ = ?

50 = \frac{1}{2} (24+GJ)

Multiplying both sides by 2

100 = 24 + GJ

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7 0
3 years ago
alvin ran a 5-kilometer race.when he was halfway to the finish line, how many meters did he have left to run?
MrRissso [65]

Answer:

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step-by-step explanation:

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4 0
3 years ago
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qaws [65]

Answer:

\frac{x^2+2x}{x-3}

Step-by-step explanation:

We need to factor out numerator and denominator in order to simplify the rational expression by cancelling  common factors.

Numerator :  x^3 - 4 x = x (x^2 - 4) = x (x - 2) (x + 2)

Denominator (factoring by grouping):

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Then we can cancel out the common factor (x - 2) in both numerator and denominator, leading to:

x (x + 2) / (x - 3) = (x^2 + 2)/ (x-3)

\frac{x^2+2x}{x-3}

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3 years ago
Earn $134 in 8 hours how much did you earn per hour
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