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2 years ago

If a rectangler has an area of 34 and the width is half the length what are the length and the width

1 answer:

3 0

A=LW,

W=L/2, L=2W so:

A=(2W)W

A=2W^2 and A=34 so:

2W^2=34

W^2=17

W=√17, and since L=2W

L=2√17

So the length is 2√17 and the width is √17

(length≈8.25 and width≈4.12 if you wanted approximations...)

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7. Robert poys for his family to go bowling. He pays an initial fee

Nataly [62]

Answer:

a)Robert pay $12 to rent shoes for everyone

b)Cost of each game is 4.5

c)y = 4.5x+12

Step-by-step explanation:

Refer the attached graph

a)How much did Robert pay to rent shoes for everyone ?

y - intercept will give the rent shoes for everyone

y intercept is point where the graph of a function or relation intersects the y -axis of the coordinate system.

So, from the graph we can see that at x = 0 , y = 12

So, from the graph we can see that the no. of games is 0 . So, Total cost is 12

Thus Robert pay $12 to rent shoes for everyone

b)What was the cost per game at the bowling alley?

So, we are supposed to find the slope

Two pints from graph :

$(x_1,y_1)=(0,12)(x_2,y_2)=(2,21)m = \frac{y_2-y_1}{x_2-x_1}=\frac{21-12}{2-0}=4.5$

So, Cost of each game is 4.5

c)Write an equation to represent the situation Number of Gomes

General equation : y = mx+c

So, y = 4.5x+12

4 0

3 years ago

Mr. Mustard said: "If you add the ages of my

beks73 [17]

Answer:

Mr. Mustard is 44 years old

Step-by-step explanation:

70 - (11+15) = 44

44 + (11+15) = 70

7 0

3 years ago

If f(x) = x2 and g(x)= 3x + 1, which expression represents g(f(x))?

Romashka [77]

Answer:

g(f(x)) =3(x2)+1

Step-by-step explanation:

g(f(x)) means substitute f(x) in the eqn g(x)

That is anywhere you see x2, use it to replace x in the eqn g(x)

6 0

3 years ago

Please help me please please

Mumz [18]

Answer:

x - 4 = 0

Step-by-step explanation:

Slope is undefined

So, slope m = 1/0

Line is passing through the point (4, 8)

Equation of line:

$y - y_{1} = m(x - x_{1} ) \\ \\ (y - 8 )= \frac{1}{0} (x - 4) \\ \\ (y - 8 ) \times 0= (x - 4) \\ \\ 0 = x - 4 \\ \\ x - 4 = 0 \: \\ is \: the \: required \: equation \: \\ line.$

8 0

2 years ago

There are 25 people in a classroom. Each person shakes each other person's hand once

NikAS [45]

Answer:

Step-by-step explanation:

13 because there pretend there is 24 people then it would be 12 but then there is one left over so 13 because somebody would have to shake hands with that person

5 0

3 years ago