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alexandr1967 [171]

3 years ago

8

Lucy is on her way home in her car. She has driven 30 miles so far, which is one-third of the way home. What is the total length

of her drive?

1 answer:

KonstantinChe [14]3 years ago

7 0

It’s 90 miles. 30 x (3/1)<— the reciprocal of 1/3

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a cargo ship is 704 feet long. if 1.1 inch represents 13 feet, how long is the ship in the model? round your answer to the neare

ira [324]

Answer:

59.57

Step-by-step explanation:

704 / 13

= 54.1538461538

54.1538461538 x 1.1

= 59.5692307692

3 0

2 years ago

PLEASE HURRY<33<br> Graph the following piecewise function. f(x)={x^2+2 if -5

Lina20 [59]

The graph for the first is line segment joining (x, y) = (−2,−4)and (2, 4), sans the end points. The second part is the line through (-2, -6) and (-3, -9), from (-2, -6), excepting (-2, -6). ..

Step-by-step explanation: you are using y for the piecewise function.

6 0

3 years ago

If x equals 8, what is the value of 3X?

Brrunno [24]

Answer:

24

Step-by-step explanation:

x=3

3x

3(8)

24

5 0

3 years ago

Read 2 more answers

Andrea wants to build a rectangular dog pen that has an area of 24 square feet. She started drawing up plans on the coordinate g

nekit [7.7K]

Answer:

Width Length Area

1 m 31 m 31 m2

2 m 30 m 60 m2

3 m 29 m 87 m2

4 m 28 m 112 m2

5 m 27 m 135 m2

------------------------------

14 m 18 m 252 m2

15 m 17 m 255 m2

16 m 16 m 256 m2

17 m 15 m 255 m2

18 m 14 m 252 m

Step-by-step explanation:

8 0

3 years ago

Find the value of x² - x+1 when x=√3 -1, in the form a+b√3 where a and b are integers

lidiya [134]

Answer:

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

Step-by-step explanation:

We are given $x=\sqrt{3}-1$ and we are asked to find the value of $x^2-x+1$ .

So we will need to find $x^2$ .

$x=\sqrt{3}-1$

Square both sides:

$x^2=(\sqrt{3}-1)^2$

Expand using identity: $(x-a)^2=x^2-2ax+a^2$ .

$x^2=(\sqrt{3})^2-2(\sqrt{3})(1)+1^2$

$x^2=3-2\sqrt{3}+1$

$x^2=4-2\sqrt{3}$

Let's go back to the full $x^2-x+1$ .

$x^2-x+1$

$(4-2\sqrt{3})-(\sqrt{3}-1)+1$

$4-2\sqrt{3}-\sqrt{3}+1+1$

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

5 0

4 years ago