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aleksandr82 [10.1K]

3 years ago

14

HURRY!! THIS ASSIGNMENT IS DUE IN 5MIN!!! THANK YOU!!!!!!

1 answer:

VMariaS [17]3 years ago

5 0

Since Paula left home an hour ago driving at 40mph, it means she has already gone 40 miles by the time Dan left. Dan is driving at 50mph, which is 10 greater than 40. This means that every hour, Dan will drive 10 more miles than Paula, lessening their difference by 10. 40 divided by 10 is 4, so iit will take Dan 4 hours to catch up to Paula:)

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Write an equation of the line that passes through the pair of points (5, 8) and<br> (9, 16).

SashulF [63]

Answer:

D: y = 2x - 2

Step-by-step explanation:

1. $\frac{16-8}{9-5}$ = 2

2. y = 2x + b

3. Insert the points into the equation: 8 = 10 + b

4. b = -2

5. y = 2x - 2

6 0

3 years ago

Read 2 more answers

An adjustable ladder on the back of the firetruck is needed for firefighters to climb to very high buildings. The maximum angle

torisob [31]

Cos 70 = horizontal distance /
100 horizontal distance = 100 cos 70 = 32.2feet

3 0

3 years ago

Let f(x)=-6x+3 And g(x)=5x+4 Find F×G and state it's domain

a_sh-v [17]

Answer:b

Step-by-step explanation:

6 0

3 years ago

Dmitry_Shevchenko [17]

Answer: Option (D) Add the exponents and keep the same base. Then find the reciprocal and change the sign of the exponent.

Explanation:

Given expression:

$(2^3)(2^{-4})$

<em>Step-1: </em>Add the exponents and keep the same base by using $x^a*x^b = x^{a+b}$ property.

$(2^3)(2^{-4}) = 2^{(3+(-4))} = 2^{-1}$

Step-2: The reciprocal of $2^{-1}$ is $\frac{1}{2^{-1}}$ , which is $2^1$

Step-3: The exponent of $2^1$ is +1; therefore, change the sign of exponent. The end expression will now become:

$2^{-1}$

Hence, the correct option is (D) Add the exponents and keep the same base. Then find the reciprocal and change the sign of the exponent.

3 0

3 years ago

Read 2 more answers

A rectangular wall has length 3 less than 4 times the width . I wish to put a silver line along the corners of the wall. The lin

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

Let width = w units

Length = 4w - 3

Cost for lining corners of wall = $ 18.50

Perimeter of the wall = 18.50/0.25 = 74 ft

2*(length +width ) = 74

2*(4w - 3 + w) =74

2*(5w - 3) =74

10w - 6 = 74 {Add 6 to both sides}

10w - 6 + 6 = 74 + 6

10w = 80

Divide both sides by 10

10w/10 = 80/10

w = 8 ft

Length = 4w - 3 = 4*8 - 3 = 32 - 3

Length = 29 ft

Area of the wall = length * width

= 29 * 8

= 232 square ft

Cost of painting the wall per square feet = 20 cents = 0.20

Cost of painting 232 square feet = 232 * 0.20

= $ 46.40

4 0

3 years ago