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3 years ago

Katrina owns a 9-acre farm. Last month, she bought her neighbor’s adjoining 8-acre farm. How large is Katrina’s farm now?

Mathematics

2 answers:

diamong [38]3 years ago

5 0

9 + 8 = 17acre simple

stepan [7]3 years ago

5 0

Answer:

Step-by-step explanation:

No steps.

Just add 8+9

to find the total

answer:17

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50 pts help pls...

Masteriza [31]

Felix and Tyler means
Mean = (9.4+54)/2= 31,7
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3 years ago

The ratio of dogs to cats is 5:3.

wolverine [178]

Answer:

1:2

Step-by-step explanation:

since cats is 3 you put 3 and fish is 6 you put 6

it will equal to 3:6 but in the simplest form, its 1:2

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3 years ago

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A scuba diver is swimming at a depth of -8

ICE Princess25 [194]

Answer:

-24 feet.

Step-by-step explanation:

To find this, we need to multiply -8 and 3. This gets us -24. That means the coral reef is -24 feet. I hope this helps!

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3 years ago

A motorboat travels across a river at at a rate of 15 meters per second. if the river is 1,350 meters wife how long will it take

Maurinko [17]

Answer: 90 seconds

Step-by-step explanation:

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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 $b=-3$ .

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4 years ago