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3 years ago

PLEASE HELPPPP WITH THIS

Mathematics

2 answers:

4vir4ik [10]3 years ago

8 0

Answer:The distance formula itself is actually derived from the Pythagorean Theorem which is a 2 + b 2 = c 2 {a^2} + {b^2} = {c^2} a2+b2=c2

Step-by-step explanation:

tekilochka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

slope = y2-y1/x2-x1

1 -3 . 3 1

(1 - (-3))/(3-1)

4/2

Slope = 2

y = mx + b

y = 2x -5

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each morning a gardener uses 24 1/2 gallons of water from a metal reservoir.each afternoon,she adds 15 1/4 gallons of water to t

Alika [10]

Every day, the volume increases by 24 1/2+15 1/4=39 3/4 gallons. So after 5 days, the volume increases by 39 3/4 * 5 = 795/4= 198.75 gallons

3 0

3 years ago

Find the sum. Homework: 9.4 arithmetic series

RUDIKE [14]

Answer:

Step-by-step explanation:

a1 = 3(1) - 7 = - 4

a2 = 3(2) - 7 = -1

d = a2 - a1

d = -1 - (-4)

d = -1 + 4

d = 3

a60 = 3(60) - 7

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a60 = 173

n = 60

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Sum = (169)*30

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==================

Just to check, we'll use the second summation formula

d = 3

n = 60

a1 = -4

Sum = (2*a1 + (n - 1)*d )*n / 2

Sum = (2*(-4) + (60 -1)*3)* 60/2

Sum = (-8 + 59*3) * 30

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Sum = 5070

Same answer.

5 0

3 years ago

Find the zeros of the function. f(x) = 2x2 – 36

Kaylis [27]

Answer:

3√2 and -3√2

Step-by-step explanation:

2x^2-36

2(x^2-36)

2(x+3√2)(x-3√2)

7 0

2 years ago

Read 2 more answers

The cost (c) to hire a dog trainer is varies directly with the amount of time (h) in hours spent training the dog.

NNADVOKAT [17]

Answer:

Part A) The proportional equation is $c=55h$

Part B) 8 hours of training

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

Let

c -----> the cost to hire a dog

h ----> the amount of time in hours

The linear equation is equal to

$c=kh$

Sue spent $660 on 12 hours of obedience training for her dog Muffin

Find the value of k (constant of proportionality)

$k=y/x$

substitute the values

$k=660/12=55$

therefore

The linear equation is

$c=55h$

For $c=\$440$

Find the value of h

substitute in the equation and solve for h

$440=55h$

$h=440/55=8\ hours$

5 0

3 years ago

3x + 2 = 14 what number makes this true? A. 1 B. 2 C. 4 D. 6

Ksenya-84 [330]

Answer:

Step-by-step explanation:

3*4+2=14

12+2=14

14=14

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3 years ago

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